FCC ID: 2ARTX-Z4PLUS Mobile Phone

User Guide Z4 PLUS 1 Contents I. CAUTIONS ON MOBILE PHONE USE ............................................................................................................... 4 1.1 INTERFERENCE ......................................................................................................................................... 4 1.2 REASONABLE USE .................................................................................................................................... 4 1.3 QUALIFIED MAINTENANCE SERVICE .......................................................................................................... 4 1.4 WATER-RESISTANCE ................................................................................................................................. 4 1.5 EMERGENCY CALLS .................................................................................................................................. 4 2 PRECAUTIONS FOR USE OF BATTERY ........................................................................................................... 4 3 CAUTIONS FOR CHILDREN ............................................................................................................................ 5 II. KEYS AND PARTS ........................................................................................................................................ 6 III. START TO USE ........................................................................................................................................... 7 3.1 TO INSERT SIM CARD(S): ......................................................................................................................... 7 3.2 CHARGE THE BATTERY ............................................................................................................................. 9 IV. BASIC FUNCTIONS ................................................................................................................................... 10 1. LOCK AND UNLOCK THE SCREEN .............................................................................................................. 10 2. MAKE IT YOURS ........................................................................................................................................ 10 2 3. SWITCH TO RECENTLY USED APPLICATION .............................................................................................. 11 4. MAKE A CALL ........................................................................................................................................... 11 5. CALL LOG ................................................................................................................................................. 11 6. ANSWERING PHONE CALLS AND REJECTION ............................................................................................. 12 7. ADD A CONTACT ....................................................................................................................................... 12 8. SEND AND RECEIVE MESSAGE(S) ............................................................................................................. 12 9. BROWSER THE WEB ................................................................................................................................. 13 10. ENJOY MUSIC ......................................................................................................................................... 13 11. DOWNLOAD APPLICATIONS FROM PLAY STORE ...................................................................................... 13 12. MANAGE APPLICATIONS ......................................................................................................................... 13 13. APPLICATIONS & UTILITIES ............................................................................................................ 14 14. SETTINGS ............................................................................................................................................... 14 3 I. Cautions on mobile phone use 1.1 Interference All phones may be interfered, which affect phone calls. 1.2 Reasonable use Use only in the normal position. Do not touch the antenna area unnecessarily. 1.3 Qualified maintenance service Only qualified personnel may install or repair this product. 1.4 Water-resistance Your device is non water-resistant. Keep it dry. 1.5 Emergency calls Ensure the phone is switched on and in service. Enter the emergency number and press the Dialer icon. 2 Precautions for use of battery 2.1 Do not dispose of batteries near or in a fire to avoid dangers. 4 2.2 Do not dispose of batteries in the garbage. Dispose of batteries to assigned battery recycling center. 3 Cautions for children Keep your device out the reach of children in case of accidental injury caused by incorrect use of the device as toys. 5 II. Keys and parts 6 1. Receiver 2. Light sensor / Proximity sensor 3. Front Camera 4. SIM Tray 5. Volume key 6. Power key/Fingerprint sensor 7. Earphone Jack 8. Mic 9. USB connector 10. Speaker 11. Rear camera 12. Flashlight III. Start to use 3.1 To insert SIM card(S):

Insert the SIM card correctly in the card slot(s) (See figure below), suggest switch off the phone when you insert SIM card. Insert the Micro SD card into the slot with the correct direction (See figure below), suggest switch off the phone when you insert Micro SD. Note: Use only compatible memory cards with this device. Incompatible memory cards may damage the card or the device and corrupt the data stored in the card. 7 8 3.2 Charge the battery During charging, the battery indicator on the phone is a thunder icon. If the device is switched off during charging, there will still be a charging indication on the screen that shows the phone is being charged. If the device is overused when the battery is low, the charging icon might take some time to appear. When the battery indicator on the screen display 'Battery is full', thunder icon will disappear, which means the completion of charging. If the phone is switched off during charging, the screen will display ' Battery is full '. During charging, the battery, the device and the charger will get hot. This is normal. Unplug the charger from the AC electrical outlet and disconnect the wiring between the phone and the charger after charging. Cautions: Charge the phone in a well ventilated place in which the temperature is between -10 to +55. Use the charger provided by the manufacturer only. The use of unconfirmed charger may lead to dangers and violate the manufacturer's warranty clause. If the temperature is too high or too low during charging, the device will automatically send a warning and stop charging to avoid damage to the battery or any danger. 9 IV. Basic functions 1. Lock and unlock the screen Press power button to enter Sleep mode and meanwhile the screen will be locked; press power button again to wake up and then swipe up for unlock. 2. Make it yours 2.1 Home screen: It is your starting point to access all the features on your phone. It displays application icons, widgets, shortcuts, and other features. Long press home screen and Modify Wallpaper. 2.2 Long press Home screen, and then you can Modify Wallpaper; or enter Launcher and long press and hold an application till the screen vibrates, and then loosen your hold finger. Long press the widget or icon to move, after the phone vibrates, select delete or uninstall Swipe up and enter to application list. 2.3 Notification Bar: At the top of the screen, the Status Bar displays the time, status, and notifications. If there is a new message, missed call or something in the notification bar, you can drag it down to open notification panel and click the desired one to have a view. When you finished, you can close it by dragging the panel up or pressing Back. 10 2.4 Android and computer connection If you connect your phone to PC via USB, you can find the USB options, choose This Device -

file Transfer option, you can see your phone memory in PC, this is same function like USB storage. 3. Switch to Recently Used Application Press menu key. 4. Make a call Click search. and enter a complete phone number to make a call. Your phone supports smart Swipe to right to view Call history and Contacts. 5. Call log Press the number, you can view the contact details, send a message or call back. 11 6. Answering phone calls and rejection When there is an incoming call, you can drag the icon up or down to answer or hang up it directly. 7. Add a contact Touch to enter contact Touch to add a new contact Click here to add new contact and in this page press menu key to enter menu view, setting, etc. 8. Send and Receive message(s) Touch enter to messaging, touch Start chat. When you are composing a new text message, you can select text for cutting or copying. The selected text is highlighted in blue Tap to add Attach including Pictures, Videos, Audios, etc to send MMS.SMS When a new message comes, you can read by dragging notification panel and click the message, or entering Message to read it directly. Long press one of the all message threads, you can delete it. 12 9. Browser the Web 9.1 Set up Internet/Data connection Enter Settings > More, scroll down to find out Mobile network, and then enter Access Points Names, choose the desired WAP account. 9.2 Switch on Data connection or Wi-Fi To browse the web, you need to switch on Data connection. If there is Wi-Fi around, you can switch on Wi-Fi to use it browse the web. 10. Enjoy music When you copy music to your SD card, the Music player searches the card for music files and builds a catalog of your music, based on information about each file that is stored in the file itself. 11. Download applications from Play Store 11.1 Add Google account 11.2 Enter play store and download apps 12. Manage Applications Enter Settings > Apps. You can see app info. 13 13. APPLICATIONS & UTILITIES For your entertainment purpose, applications and utilities, such as Gmail, Email, Play Store.Before accessing the applications, please turn on the data connection or connect to wifi 14. Settings 14.1 Wi-Fi Open Wi-Fi, search nearly Wi-Fi and connect it, then you can use Internet or download apps for free. 14.2 Bluetooth Settings> Connected> Pair new device> Bluetooth Open Bluetooth, connect to other phone, you can share something like music, photos, movies etc to other people. 14.3 Security Click Settings Security Biometrics&passworld -Screen lock. There are four screen lock ways for you to choose :Swipe, Pattern, PIN, Password. 14.4 Fingerprint Click Settings Security Fingerprint , follow the prompts ,after completing the fingerprint recording, you can use the fingerprint unlock function. 14 15.19 Labeling requirements. 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. 15.21 Information to user. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 15.105 Information to the user. Note: 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.

-Increase the separation between the equipment and receiver.

-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. 15 Absorption Rate (SAR) information:

This mobile 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. This device was tested for typical body-worn operations with the back of the handset kept 1.0cm from the body. To maintain compliance with FCC RF exposure requirements, use accessories that maintain a 1.0cm separation distance between the user's body and the back of the handset. 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. Body-worn Operation This device was tested for typical body-worn operations. To comply with RF exposure requirements, a minimum separation distance of 1.0 cm must be maintained between the users body and the handset,including the antenna. Third-party belt-clips, holsters, and similar accessories used by this device should not contain any metallic components. Body-worn accessories that do not meet these requirements may notcomply with RF exposure requirements and should be avoided. Use only the supplied or an approved antenna. 16

35.9*22mm Handset label LAWA. Modelo: 24 PLUS COUT TTT EET IMEI - 1: 0000000000000000 IMEI - 2: 0000000000000000 SN: 0000000 FCC ID: 2ARTX-Z4PLUS Hechoen china mam

LAVA International Limited Long Term Confidentiality Request Letter

(2023-09-23) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR Product: Mobile Phone Model No.: Z4 PLUS FCC ID: 2ARTX-Z4PLUS To Whom It May Concern:

This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Schematic Diagram Block Diagram Operational Description Part List / BOM List / PCB Layout Tune-up Procedure Required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Please contact me if there is any information you may need. Sincerely, Laxit Sharma / Manager Date/City:

Phone:

Fax:

E-mail:

2023-09-23 / Uttar Pradesh

+91-9654481080

+0120-4637240 laxit.sharma@lavainternational.in

LAVA International Limited Agent Authorization Letter

(2023-09-23) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park Sanwei, Xixiang, Bao'an District, Shenzhen, Guangdong, China Alex.li alex.li@ntek.org.cn to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Laxit Sharma / Manager Date/City:

Phone:

Fax:

E-mail:

2023-09-23 / Uttar Pradesh

+91-9654481080

+0120-4637240 laxit.sharma@lavainternational.in

THREE STONES MEDIA LLC U.S. Agent Letter of Attestation To: Federal Communications Commission Date: 09-23-2023 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Attestation Statement Part2.911(d)(7) filing FCC ID: 2ARTX-Z4PLUS LAVA International Limited (the applicant) certifies that, as of the date of the filing of the application, THREE STONES MEDIA LLC(the agent) is our designated U.S. agent for service of process for the abovereference FCC ID. The applicant accepts to maintain an agent for service of process in the United States forno less than one year after either the grantee has permanently terminated all marketing and importation of theapplicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicialproceeding involving the equipment, whichever is later. The applicant further acknowledges it is ourresponsibility to inform the FCC whenever the agent information changes. THREE STONES MEDIA LLC ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name:

THREE STONES MEDIA LLC FRN: 0033401761 GC: 2A99E Address:

1200 Broadway St. APT 329, Los Angeles, CA90015 Contact Person: Sijie Zhang Signature:

Tel: +1 267 909 3692 Email: abbyzhangmedia@gmail.com Applicant Company Name:

LAVA International Limited Address:

A-56, Sector-64, Gautam Buddha Nagar, Noida Uttar Pradesh, 201301 India Contact Person: Laxit Sharma Tel: +91-9654481080 Signature:

Email: laxit.sharma@lavainternational.in

LAVA International Limited Section 2.911(d)(5)(ii) Certification Applicant (Covered List ) Company name: LAVA International Limited Address: A-56, Sector 64, Noida 201301, U.P. India Product Name: Mobile Phone FCC ID: 2ARTX-Z4PLUS Model(s): Z4 PLUS 2.911(d)(5)(ii) Applicant filing We, [LAVA International Limited] (the applicant) certify that, as of the date of the filing of the application, the applicant is not identifiedNOTE 1on the Covered ListNOTE 2,established pursuant to 1.50002 of this chapter,as an entity producing coveredcommunications equipment. Yours sincerely, Name: Laxit Sharma Date: 9/23/2023 Title and Company name: Manager / LAVA International Limited NOTE 1 Delete option not applicable to this application. NOTE 2 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.3