FCC ID: XD6U653DS Smart Phone with BT, WIFI, NFC, GSM, WCDMA, LTE and 5G NR

Label U653DS MODEL: Celero3 5G GRAY 128GB FCC ID: XD6U653DS Voltage Rating: 3.85V SKU: TU653DSGR128 BC MFD:

230824 860284060000436 IMEI:

H/W: V1.0 Made in China Label location

Shenzhen Tinno Mobile Technology Corp To: Federal Communications Commission Date: 2023/10/16 7435 Oakland Mills Road Columbia, MD 21046 USA Attestation Section 2.911(d)(5)(i) and Section 2.911(d)(5)(ii)

(KDB 986446 D01 Covered Equipment) Section 2.911(d)(5)(i)

[Shenzhen Tinno Mobile Technology Corp] (Xiaoping Li) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Section 2.911(d)(5)(ii)

[Shenzhen Tinno Mobile Technology Corp] (Xiaoping Li) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing covered equipment. Type of Equipment subject to FCC Certification:

FCC ID:XD6U653DS If you have any questions, please feel free to contact me Contact Person:

Position in the Company: Certification Manager Date of Signature:

2023/10/16 Xiaoping Li _ __________________________

Shenzhen Tinno Mobile Technology Corp. 27-001, South side of Tianlong mobile HQ Building, Tongfa South Road, Xili Street, Nanshan District, Shenzhen ,PRC U.S. Agent Designation for Service of Process

(Applicant and U.S. Agent are Separate Parties) TO:

American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 ATTENTION: FCC Certification Section 2.911(d)(7) Information Designated U.S. Agent Company Name: TINNO USA INC Contact Name: Brandy Kang Street Address: 2301 W. PLANO Parkway, SUITE 102 City/Province/Zip: Plano, TX 75075 Telephone No: (626) 200-5096 Email: WIKOUSA2017@GMAIL.COM FRN #: 0033457680 This letter is to confirm that we (the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature:

Date: 2023-10-14 Signed by (Printed Name/Title): Brandy Kang / CEO The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-

related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Shenzhen Tinno Mobile Technology Corp. Grantee Code: XD6 Contact Name: Xiaoping Li Street Address: 27-001, South side of Tianlong mobile HQ Building, Tongfa South Road, Xili Street, Nanshan District City/Province/Zip: Shenzhen /Guangdong/518000 Telephone No: (86) 755-86095550 Email: xiaoping.li@tinno.com FRN #: 0018783100 Applicant Signature1:

Date:2023-10-14 Signed by (Printed Name/Title): Xiaoping Li / Manager 1 - Letters should be placed on appropriate letterhead.

Shenzhen Tinno Mobile Technology Corp 27-001, South Side of Tianlong Mobile Headquarters Building, Tongfa South Road, Xili Community, Xili Street, Nanshan District, Shenzhen ,PRC Date: 2023/10/16 Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd Columbia MD 21046-1609 Subject: Request for Confidentiality FCC ID: XD6U653DS To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commissions rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Part List Operational Description Tune-up Procedure 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. In additional to above mentioned documents, pursuant to Public Notice DA 04-1705 of the Commission s policy, in order to comply with the marketing regulations in 47 CFT 2.803 and the importation rules in 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices. We are requesting the commission to grant short-term confidentiality request on the following attachment(s) for 180 days after the grant as outlined in Public Notice DA 04-1705. External Photos Internal Photos Test Setup Photos User Manual 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. Best Regards, Date:

Name:

Email:

2023/10/16.. Xiaoping Li .. xiaoping.li@tinno.com.... Signature:

Shenzhen Tinno Mobile Technology Corp. Date: 2023/11/07 Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd. Columbia MD 21046 Attn: Office of Engineering and Technology FCC ID: XD6U653DS To whom it may concern:

Shenzhen Tinno Mobile Technology Corp. hereby declares that the results using ABMI values obtained from VoLTE connections over LTE bands, and ABM2 values for 5G Sub-6GHz connections over the same bands provide a reasonable representation of the HAC rating over these SG Sub-6GHz connections

(VoNR). Sincerely, Signature __ _____ Date: 2023/11/07

RF_160, Issue 04 Shenzhen Tinno Mobile Technology Corp Declaration of Authorization We Name:

Address:

City:

Country:

Declare that:

Shenzhen Tinno Mobile Technology Corp 27-001, South side of Tianlong mobile HQ Building, Tongfa South Road, Xili Street, Nanshan District Shenzhen,Guangdong Province China Name Representative of agent: Well Wei Agent Company name:

Address:

Park, Suzhou Area, China (Jiangsu) Pilot Free Trade Zone City:

Country Suzhou China SGS-CSTC Standards Technical Services (Suzhou) Co., Ltd South of No. 6 Plant, No. 1, Runsheng Road, Suzhou Industrial is authorized to apply for Certification of the following product(s):

Product description: Smart Phone Type designation: Celero3 5G FCC ID:

XD6U653DS on our behalf. Date:

Name:

Email:

2023/10/16.. Xiaoping Li .. xiaoping.li@tinno.com. Signature:

Shenzhen Tinno Mobile Technology Corp 27-001, South Side of Tianlong Mobile Headquarters Building, Tongfa South Road, Xili Community, Xili Street, Nanshan District, Shenzhen , PRC UNII Declaration Letter We have declared below featured for FCC equipment authorization, device FCC ID:XD6U653DS

(1) DFS Device --

Master, Client without radar detection capability, Client with Radar detection capability , N/A

(2) Active / Passive Scanning , adhoc mode access point capability Frequency Band

(MHz) Active Scanning

(the device can transmit a probe

(beacon)) 2412 2462 MHz 2422 2452 MHz 5745 5825 MHz 5755 5795 MHz 5180 5240 MHz 5190 5230 MHz 5260 5320 MHz 5270 5310 MHz 5500 5700 MHz 5510 5670 MHz Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, No No No No No No No No No No passive scanning

(where the device is can listen only with no probes) Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, No No No No No No No No No No Ad Hoc Mode capability Access point capability Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, No No No No No No No No No No Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, Yes, No No No No No No No No No No

(3) Country code selection ability -

If no, pls explain how was implemented : use Microsoft network utility Yes , No

(4) Meet 15.202 requirement -

pls check below :

Yes , No , A master device is defined as a device operating in a mode in which it has the capability to transmit without receiving an enabling signal. In this mode it is able to select a channel and initiate a network by sending enabling signals to other devices A client device is defined as a device operating in a mode in which the transmissions of the device are under control of the master. A device in client mode is not able to initiate a network.

(5) For client devices that have software configuration control to operate in different modes (active scanning in some and passive scanning in others) in different bands (devices with multiple equipment classes or those that operate on non-DFS frequencies) or modular devices which configure the modes of operations through software, the application must provide software and operations description on how the software and / or hardware is implemented to ensure that proper operations modes can not be modified by end user or an installer. Apply , No Apply ,

(If apply , pls help to provide explanation on how it was implement (By hardware or software , and how software was controlled) If you have any questions, please feel free to contact me at the address shown below. Signatory Yours sincerely, Shenzhen Tinno Mobile Technology Corp Printed Name:Xiaoping Li