FCC ID: 2ADVABRIOX31 Smart Phone

BRIO X31 User Manual Read me first reference. provider. Please read this manual before operating your mobile phone, and keep it for future The descriptions in this manual are based on the default settings. Images and screenshots used in this manual may differ from the actual product. Available features and additional services may vary by device, software or service Our company is not liable for performance issues caused by third-party applications. AndroidTM 9 Pie System features 1. The dark pattern You can turn this feature on by selecting the "Dark" option in Settings> Display > Advanced

> Devicetheme to dim Android devices. 2. New screenshot shortcuts Say goodbye to the default combination of the Power+ Volume Down button, and now you can take a screenshot at any time by clicking the icon in the Power menu. 3. Easier screen rotation Until then, you can only use the auto-rotate switch.Android now has the option to rotate the screen to landscape mode and return to portrait mode when the icon is clicked. 4.Notice the information In Settings> Apps & notifications > notifications, you see the latest and most distracting notifications. 5.All applications use HTTPS This is a nod to Android security users.All apps on AndroidPie use HTTPS by default. default.Android and GoogleTM CARES about your privacy. Contents Assembling................................................................................................................................... - 1 -

Unpack.................................................................................................................................. - 1 -

Charge the battery ............................................................................................................... - 1 -

Install the SIM card ............................................................................................................... - 1 -

Install the memory card ....................................................................................................... - 1 -

Getting started ............................................................................................................................. - 2 -

Turn your device on ,rebootand off ..................................................................................... - 2 -

Switch to flight mode ........................................................................................................... - 2 -

Home screen ........................................................................................................................ - 2 -

Task bar ................................................................................................................................ - 2 -

Notification panel ................................................................................................................. - 3 -

Auto rotation ........................................................................................................................ - 3 -

Lock & unlock the screen ..................................................................................................... - 3 -

Customize your device ......................................................................................................... - 3 -

Manage applications ............................................................................................................ - 4 -

Security ................................................................................................................................ - 4 -

Display size ........................................................................................................................... - 4 -

Data saver ............................................................................................................................. - 4 -

Quick Switch ......................................................................................................................... - 5 -

Reset mobile phone ............................................................................................................. - 5 -

Communication ........................................................................................................................... - 5 -

Phone ................................................................................................................................... - 5 -

Contacts ............................................................................................................................... - 6 -

Messaging ............................................................................................................................ - 8 -

Gmail .................................................................................................................................... - 9 -

Web ............................................................................................................................................ - 10 -

Play Store ........................................................................................................................... - 10 -

Entertainment............................................................................................................................ - 10 -

Camera ............................................................................................................................... - 10 -

Tools ........................................................................................................................................... - 11 -

Calendar ............................................................................................................................. - 11 -

Alarm .................................................................................................................................. - 11 -

File Manager ...................................................................................................................... - 12 -

Sound Recorder .................................................................................................................. - 12 -

Calculator ........................................................................................................................... - 12 -

Connectivity ............................................................................................................................... - 12 -

USB Connection.................................................................................................................. - 12 -

Wi-Fi ................................................................................................................................... - 12 -

Bluetooth ........................................................................................................................... - 13 -

Safety Precautions ..................................................................................................................... - 13 -

Care & Maintenance .................................................................................................................. - 14 -

warnings .................................................................................................................................... - 15 -

Assembling Unpack Mobile phone User manual Adapter Charge the battery Check your product box for the following items. You can purchase additional accessories from your local retailer. Before using the device for the first time, you must charge the battery. 1 You can charge the device with a travel adapter or by connecting the device to a PC with a USB cable. 2 Battery full icon is shown when finished if your device is off. WarningUse only original batteries and chargers. Unapproved chargers or cables can cause batteries to explode or damage your device. You need to insert a SIM card to use the Phone function. To install the SIM card, follow the Install the SIM card instructions below. 1. Make sure that the cards gold contacts face into the device. 2. Push the SIM card into the slot. Install the memory card To store additional multimedia files, you need insert a memory card. 1. Insert a memory card with the gold contacts facing downwards. 2. Push the memory card into the slot. Notice: Our company uses approved industry standards for memory cards, but some brands may not be fully compatible with your device.

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Getting started Turn your device on ,rebootand off To turn on your device, press and hold the power key. To reboot your device, press and hold the power key, select reboot and then tap OK. To turn off your device, press and hold the power key, select power off. Switch to flight mode To use only your devices non-network services, switch to flight mode. Please follow the instructions below to turn on flight mode:

Tap SettingsMoreAirplane mode from application list to create a checkmark. Home screen Task bar The home screen has multiple panels. Scroll left or right to the panels on the home screen, you can view indicator icons, widgets, shortcuts to applications, and other items. The task bar is shown at the top of the screen. It displays commonly used option buttons, battery level indicator, current time and other indicator icons. Indicator icons Icon Definition Icon Definition Open WiFi available Flight mode activated WiFi connected Signal strength BT connected Uploading data Downloading data Connected to PC Alarm activated New email New text or multimedia message Call in progress Missed call Call on hold Call diverting activated Battery power level Music being played Do't disturb

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Auto-rotate Flashlight Notification panel Location Pull down to open the top of the notification bar to show the 5 users commonly used shortcut switch, support click on the switch, and long press to enter the corresponding settings. If you continue to pull down the notification bar to display all the quick switch, fast switch in the lower right corner of page will display a "Edit" button, click to add / delete custom shortcut switch, or drag the sort. Tap icon to activate or deactivate wireless connection features and other settings. Wi-FiActivate or deactivate the Wi-Fi connection. Auto-rotate screenActivate or deactivate the auto rotation feature. BrightnessAdjust the basic brightness level of the display to lighter or darker. NotificationsActivate or deactivate the notification feature. SettingsAccess Settings application. Auto rotation If you rotate the device while using some features, the interface will automatically rotate as well. To prevent the interface from rotating, open the notifications panel and select Auto-rotate screen, then scroll it to Off. Lock & unlock the screen Slide to unlock the screen. To lock the screen manually, press Power key. Customize your device

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To customize your device according to your preferences, tap Settings from application list or notification panel. Manage applications Security Set a screen lock To manage the applications installed on your device, tap SettingsApps. 1. To uninstall an application, select an item and tap UNINSTALL, tap OK to confirm. 2. To stop or change the settings of an application, select an item and tap the option you need. You can protect your device and data by setting screen lock or encrypting your mobile phone. To set a screen lock, tap SettingsSecurity Screen lock from application list. NoneDeactivate the screen lock. SwipeSlide to unlock the screen. PatternDraw a pattern to unlock. Follow the instructions to draw your lock pattern. When prompted, draw the pattern to unlock the screen. PINEnter a numeric PIN to unlock. When prompted, enter the PIN to unlock the PasswordEnter a passcode to unlock. When prompted, enter the passcode to screen. unlock the screen. Screen time-out Select SettingsDisplaySleep from application list, you can set the time before the screen times out and goes into lock mode. ( you have not entered any characters or made other selections). Display size Data saver Android Oreo will bring a new set of secondary functions, now you can not only adjust the font size, but also adjust the display size. 1.You can set it SettingsDisplayDisplay size Android Oreo has a new traffic protection program that will count the traffic usage for each application. 1.You can set it SettingsData usageDatasaver

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1. You can switch applications by simply double clicking the "Recents" button You can reset system and desktop settings to their original values by the following steps:

1. Select SettingsBackup & reset from application list. Quick Switch Reset mobile phone 2. Tap Factory data reset. 3. Tap RESET PHONE. 4. Tap ERASE EVERYTHING. The device resets to the factory default settings automatically. Warning!: Factory data reset will erase all data from your device, including your Google account, system and application data and settings, and downloaded applications. Communication Phone Make calls To use calling functions, tap Phone from application list. To make calls, you can use any of the three ways:

Enter numbers by using the virtual numeric keypad on the screen Make a call from call log. Make a call from contacts. Answer a call Decline or end a call To answer a call, drag the circled button to the green button. To decline a call, drag the circled button to the red button. To end a call in progress, tap the red button. Call settings To change call settings, tap the option button at the lower Right below the dial-up interface. 1. Ringtone & Vibrate You can set different ringtones for incoming calls. SettingsSoundSelect phone

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ringtoneto open a list of ringtones, select the desired ringtone, and then select OK to confirm. SettingsSoundSelect Also vibrate for calls to create a checkmark and the phone vibrates to notify you of incoming calls. Settings soundOther sounds You can set Dial pad tones, Screen locking sounds, Touch sounds, Vibrate on tap. 2. Dial pad touch tones 3. Voice mail With the call divert network service, you can direct incoming calls to your voice mailbox. Tap Service to set your voice mail service provider. Tap Setup to set your voice mail number. Tap Sound to set the desired ringtone for your voice mail. Tick the box next to Vibrate and the mobile phone vibrates to notify you of a voice mail. If FDN mode is activated, your device will restrict outgoing calls, except for the numbers 4. Fixed Dialling Numbers stored in the FDN list. 5. Quick responses then tap OK. 6. Call forwarding 7. Call waiting Contacts Quick response is a feature to reject the call with the predefined messages. Tap one of the pre-written messages to be displayed when you want the call to be rejected, Call diverting is a network feature to send incoming calls to another number that you specify. If call waiting is activated, the network notifies you of a new incoming call while you have a call in progress or you can make a new call during a call. Tap Contacts from application list to access contacts. AllList all your contacts saved in the device memory and SIM cards. FavoritesList the contacts that you have set as favorites or the contacts that you have sent message to or dialed. Add new contact 1. Access Contact number.

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2. Click 4. Click . Edit a contact 3. Enter necessary Contact name. 1. To edit a contact, select and click the contact you want to change. 2. Click the edit icon at the upper right. 3. Change necessary fields. 4. Click . Create new group 1. Click at the upper right ,then select Groups. 2. Click at the upper right. 3. Select the account that you want to create new group. 1. To rename the group, select and click the group you want to change. 2. Click at the upper right and then select Edit. 4. Enter a category name. 5. Click DONE. Rename group 3. Enter a new category name. 4. Click DONE. Import/Export contacts 1. Import from the SIM card To copy the contacts from the SIM card, click the option button at the upper right and then select Import/ExportCOPY CONTACTS FROM select SIM cardclick NEXTCOPY CONTACTS TO select Phone contactclick NEXT ,select contacts, and then click OK. 2. Import from MEMORY card To import contact files (in vcf format) from a memory card to your device, tap the option button at the upper right and then select Import/Export COPY CONTACTS FROM select MEMORY cardclick NEXTCOPY CONTACTS TO select Phone contactclick NEXT ,select one or multiple or all vCard files to import, click OK ,Choose vCard files, and then click OK. 3. Export to MEMORY card To export contacts from your device to a memory card, tap the option button at the upper

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right and then select Import/Export COPY CONTACTS FROM select Phone contactclick NEXTCOPY CONTACTS TO select MEMORY cardclick NEXT Export to MEMORY card, ,select contacts, and then click OK. Search for contacts device shows the result. 1. Click at the title bar from contact list screen, enter the desired information, then your 2. Click the search icon at the upper left from home screen, enter the contacts name or number, your device shows the result immediately. Learn to create and send a text or multimedia message, and view or manage messages that you Messaging have sent or received. View messages 1. ClickMessaging from application list. 2. Click the message to view the detailed information. Create and send SMS 1. Click enter NEW MESSAGE. than one number, separate the numbers with a comma. 3. In Type message, enter the text of the message. 4. Select Send to send the message. Create and send MMS Multimedia message can include pictures, sound and text. 1. ClickNEW MESSAGE. 2. Click at the title bar. 3. Select one of the items below. Pictures: Insert image. Capture pictureCapture new picture and insert the picture. Videos: Insert video clip. Audio: Insert sound clip. Capture video: Capture new video clip and insert the video clip.

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2. In To field, enter the recipients mobile phone numbers manually. If you enter more Gmail Record audio: Record sound clip and insert the sound clip. Slideshow: Add more than one slide. 4. In To field, enter the recipients mobile phone numbers or email addresses manually. If you enter more than one number or email, separate them with a comma. 5. In Type message field, enter the text of the message. 6. Select Send to send the message. You can retrieve new email messages from the Google Mail webmail service to your inbox. Before you can send or receive mail on your device, you need to set up a Gmail account. If you dont have a Google Account, tap New, then follow the on-screen instructions to create a Create a Gmail account new one. Set up a Gmail account If you want to add an existing account, tap Existing, enter your email address and password, and then select Next,when you are finished setting up the email account, the email messages are downloaded to your device. View email messages 1. When you open the email account, the amount of unread email messages is displayed at the title bar and the unread email messages are displayed in bold. 2. To view an email message, tap it. 3. To mark an important email message, tap the star icon below the date. To cancel the mark, tap the star icon again. Create and send an email 1. Click

. 4. Enter the subject and the text. 5. ClickSEND to send the email. 2. In To field, enter the recipients email addresses manually and separate them with a comma. Add more recipients by tapping Cc/Bcc. 3. To insert attachments, tap the option button at the upper right and select Attach file.

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Web Play Store Entertainment Camera Capture a photo Google Play Store allows you to easily download an abundance of applications directly to your device. Before using the Play Store, you must have a Google Account. 1. From the application list, tap Google Play Store. 2. Sign in to your Google Account. 3. Search for and download applications as desired. 4. Follow the on-screen instructions. Note All applications offered by Play Store are developed by third party. To get the information about the developers, you can read the descriptions of each application. Our company is not liable for performance issues caused by third-party applications. With the camera function, you can capture photos and take videos. 1. Open the application list and select Camera. 2. Before taking a picture, you need to know some settings. Place two fingers on the screen and spread them apart or move fingers closer together to zoom in or zoom out. Icon Definition Settings Change to video mode. take photos Smile Mode Tap to switch between the front and rear camera lenses Change to panorama mode to take a landscape photo. automatically to the folder DCIM.

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3. Aim the lens at the subject and tap to take a photo. The photo is saved 4. Select the image viewer icon at the lower right to view the pictures. 1. Open the application list and select Camera. Tap to change to video mode. 2. Tap to start recording. The length of the video recording is restricted by the available space on your storage. 3. Tap to stop recording. The video is saved automatically to the folder DCIM. 4. After recording videos, select the image viewer icon at the lower right to view the Record a video recorded videos. Tools Calendar With the Calendar feature, you can consult the calendar by day, week, or month, create events, and set an alarm to act as a reminder, if necessary. To access the calendar, tap Calendar from application list. 1. To create an event, tap

. Fill in the fields, and set category, date, time & an alarm. After you finish, select DONE. 2. You can view calendar in different views, Day, Week, Month and All. 3. To delete an entry, tap the event to open it, and then select OK. Alarm From application list, tap Clock, and then select

. 1. Tap to add alarm. finished, tap OK. Tap the time to change alarm time. ringing for a few minutes. 4. Untick the clock to stop using the clock.

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Tap the numeric pad to set alarm time, and then select AM or PM, when you are 2. Set alarm time,repeat cycle, and alarm ringtone, tapOK after finished. 3. Tapcancel to shut down the alarm, and tap ring again, then the alarm will stop Note:

5. Long taping the clock then it can be deleted. File Manager Many features of the device, such as images, videos, documents, received attachments and downloaded files or applications, use memory to store data. With File manager, you can store and browse files and folders in your device, or edit, move, copy files; you can send files to compatible devices as well. 1. Some files formats are not supported depending on the software of the device. 2. Some files may not play properly depending on how they are encoded. Sound Recorder With Recorder, you can record a voice memo. From application list, tapRecorder. 1. To record a voice memo, tap

. 2. To pause the recording, tap

. 3. To listen to a voice recording that you just recorded, tap

. With this feature, you can use the device as a calculator. The calculator provides the basic arithmetic functions. Tap the virtual numeric and calculation keys to perform a calculation. Calculator Connectivity USB Connection file directory. You can connect your device to a PC and use it as a removable disk, which allows you access the 1. If you want to transfer files from or to device, insert a memory card into the device. 2. With a USB cable, connect your device to a PC. 3. Open the notification panel, Use USB to select Transfer files. 4. Open the folder to view files. 5. Copy files from the PC to the device memory or memory card. Wi-Fi With Wi-Fi, you can connect to the internet or other network devices anywhere an access point

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2. In the field of WIRELESS & NETWORKS, turn on the Wi-Fi feature. Find and connect to Wi-Fi 1. Once the Wi-Fi feature is activated, the device automatically search for available Wi-Fi or wireless hotspot is available. Activate the Wi-Fi feature 1. From application list, tap Settings. 3. Enter a password for the network (if necessary). connection. 2. Select a network. 4. Select Connect. Bluetooth bluetooth headset phone or listening to music. Activate the bluetooth feature 1.From application list, tap Settings. 2.turn on the bluetoothfeature. Scan and connect to other Bluetooth devices devices. 2.Select a device and pair. Safety Precautions With bluetooth, you can sharemusic, pictures, video, contacts with another phone. You can use 1.Once the bluetooth feature is activated, the device automatically search for other Bluetooth Read these simple guidelines before using your device. Not following them may be dangerous or illegal. Aircraft Switch off in aircraft and follow any restrictions. Wireless devices can cause interference in aircraft. Vehicles Never use your device while driving. Place it in a safe place. Position your device within easy reach. Be able to access your device without removing your

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eyes from the road. Electronic devices In some circumstances your device may cause interference with other devices. Potentially explosive environments Switch off your device when in any area with a potentially explosive atmosphere, and obey all signs and instructions. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death. Pacemakers and other medical devices Pacemaker manufacturers recommend that a minimum separation of 8 inches be maintained between a wireless device and a pacemaker to avoid potential interference with the pacemaker. Operation of any radio transmitting equipment, including wireless phones may interference with the functionality of inadequately protected medical devices. Consult a physician or the manufacturer of the medical device to determine if they are adequately shielded from external RF energy or if you have any questions. Switch off your device in heath care facilities when any regulations posted in these areas instruct you to do so. Operating environment When connecting to other device, read its user guide for detailed safety instructions. Do not connect incompatible products. Do not place your device in the air bag deployment area. Use the device only in its normal operating positions as explained in the product documentation. Always switch off your device when its use is prohibited or when it may cause interference and danger. Areas with posted regulations Switch off your device when any regulations posted in these areas instruct you to do so. Care & Maintenance Use only manufacturer-approved accessories. Use general accessories may shorten the life of your device or cause device to malfunction. Keep your device dry. Humidity and all types of liquids may damage device parts or electronic circuits. Do not use or store the device in dusty, dirty areas. Do not store the device in hot or cold areas. Do not store your device near magnetic fields. Do not store your device with such metal objects as coins, keys and necklace.

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Do not drop your device or cause impacts to your device. warnings FCC RF EXPOSURE INFORMATION:

WARNING!! Read this information before using your phone In August 1986 the Federal Communications Commission (FCC) of the United States with its action in Report and Outer FCC 96-326 adopted an updated safety standard for human exposure to radio frequency (RF) electromagnetic energy emitted by FCC regulated transmitters. Those guidelines are consistent with the safety standard previously set by both U.S. and international standards bodies. The design of this phone complies with the FCC guidelines and these international standards. Use only the supplied or an approved antenna. Unauthorized antennas modifications, or attachments could impair call quality, damage the phone, or result in violation of FCC regulations. Do not use the phone with a damaged antenna. If a damaged antenna comes into contact with the skin, a minor burn may result. Please contact your local dealer for replacement antenna. BODY-WORN OPERATION:

This device was tested for typical body-worn operations with the back/front of the phone kept 0.5cm from the body. To comply with FCC RF exposure requirements, a minimum separation distance of 0.5cm must be maintained between the user's body and the back/front of the phone, including the antenna. Third-party belt-clips, holsters and similar accessories containing metallic components shall not be used. Body-worn accessories that cannot maintain 0.5cm separation distance between the users body and the back/front of the phone, and have not been tested for typical body-worn operations may not comply with FCC RF exposure limits and should be avoided. For more information about RF exposure, please visit the FCC website at www.fcc.gov Your wireless handheld portable telephone is a low power radio transmitter and receiver. When it is ON, it receives and also sends out radio frequency

(RF) signals. In August, 1996, the Federal Communications Commissions

(FCC) adopted RF exposure guidelines with safety levels for hand-held wireless phones. Those guidelines are consistent with the safety standards previously set by both U.S. and international standards bodies:

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(1999)

<ANSIC95.1> (1992) / <NCRP Report 86> (1986) / <ICNIRP>

Those standards were based on comprehensive and periodic evaluations of the relevant scientific literature. For example, over 120 scientists, engineers, and physicians from universities, government health agencies, and industry reviewed the available body of research to develop the ANSI Standard (C95.1). Nevertheless, we recommend that you use a hands-free kit with your phone (such as an earpiece or headset) to avoid potential exposure to RF energy. The design of your phone complies with the FCC guidelines (and those standards). Use only the supplied or an approved replacement antenna. Unauthorized antennas, modifications, or attachments could damage the phone and may violate FCC regulations. NORMAL POSITION:

up and over your shoulder. RF Exposure Information:

Hold the phone as you would any other telephone with the antenna pointed This product is compliance to FCC RF Exposure requirements and refers to websitehttps://apps.fcc.gov/oetcf/eas/reports/GenericSearch.cfm FCC search for FCC ID: 2ADVABRIOX31 to gain further information include SAR Values. Do not use the device with the environment which below minimum -10 or over maximum 50, the device may not work. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. Ad Hoc function is supported but not able to operate on non-US frequencies.

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Increase the separation between the equipment and receiver. FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Specific Absorption Rate (SAR) information:

This Smart Phone meets the government's requirements for exposure to radio waves. The guidelines are based on standards that were developed by independent scientific organizations through periodic and thorough evaluation of scientific studies. The standards include a substantial safety margin designed to assure the safety of all persons regardless of age or health. FCC RF Exposure Information and Statement the SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue. Device types: Smartphone has also been tested against this SAR limit. This device was tested for typical body-worn operations with the back of the phone kept 10mm from the body. To maintain compliance with FCC RF exposure requirements, use accessories that maintain an 10mm separation distance between the user's body and the back of the phone. The use of belt clips, holsters and similar accessories should not contain metallic components in its assembly. The use of accessories that do not satisfy these requirements may not comply with FCC RF exposure requirements, and should be avoided.

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2ADVABRIOX31 Label and Location Smart Phone Model No.: BRIO X31 FCC ID: 2ADVABRIOX31 Caution:This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Size: L: 4.0cm*W: 3.0cm Label and Location This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 1

XTRATECH COMPUTERS S.A. Agent Authorization Company: XTRATECH COMPUTERS S.A. Address: Ciudadela Profesor Aguirre Abad, solar 40, manzana 118, Guayaquil, Ecuador. Product Name: Smart Phone Trade Mark: XTRATECH Model Number(s): BRIO X31 FCC ID: 2ADVABRIOX31 We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Date: 2020-03-18 Name:

Jeff sun Title:

Manager Company: XTRATECH COMPUTERS S.A.

XTRATECH COMPUTERS S.A. FCC Software Configuration Control Declaration Date: March 18, 2020 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product Name: Smart Phone Model Number: BRIO X31 Regarding FCC Country Code Selection guidelines identified in KDB 594280 D02 U-NII Device Security v01r03. All applications for equipment authorization for transmitters that can have radio parameters, or other technical parameters, reported to the Commission set by software must have an attestation indicating that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. We declare that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. Name: Jeff sun Title: Manager Signature of applicant Date: 2020-03-18 FCC Software Configuration Control Declaration Rev1.1

XTRATECH COMPUTERS S.A. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-03-18 Subject; Request for Confidentiality FCC ID: 2ADVABRIOX31 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure External Photos Test Setup Photos Internal Photos User Manual In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

OR For 45 days, pursuant to Public Notice DA 04-1705. For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Jeff sun Title: Manager

XTRATECH COMPUTERS S.A. WIFI Channel 12 and 13 Declaration Letter We declare the equipment identified below with regards to Channel 12 and 13 capabilities for FCC ID: 2ADVABRIOX31 Declaration Product hardware does not have the capability to operate on Channel 12 and 13. Product hardware has the capability to operate on Channel 12 and 13. However, these two channels will be disabled via software and will not be accessible to user. Product hardware has the capability to operate on Channel 12 and 13. However, all the operated channels cant be changed in the RF parameter via software. All channels have complied with all of the requirements sets out in FCC Part 15.247. Product hardware has the capability to operate on WiFi Channel 12 and 13, and meets the requirements of KDB 594280 D01 v02r01. Please note:

1.) By default, this device operates in a mode that is compliant with the U.S. requirements. 2.) This device will also use supplemental information such as geo-location data to determine that it is operating outside the U.S., if necessary, to change its power. Such supplemental data will be derived from the following:

Global Navigation Satellite System (GNSS)7 sensors in the device Mobile Country Code (MCC),8 or MCC with a Mobile Network code (MNC), received from a CMRS9 carrier and received directly by a receiver on the device Country information derived from multiple adjacent access points (for example using IEEE Std 802.11d provisions) may be permitted on case-by-case basis Other suitable geo-location data based on IP addresses or other reliable source. Signature:

Name / Title: Jeff sun / Manager Phone: 0755-86265237 Email: allensun05@163.com Date: 2020-03-18 Page 1 of 1 Rev.2.0