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Confidentiality Request Letter

vivo Mobile Communication Co., Ltd. Y90 Mobile Phone 2AUCY-Y90 2AUCYY90 y90

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Document DEVICE REPORTGetApplicationAttachment.html?id=4431629 
vivo Mobile Communication Co., Ltd.

Date: August 22, 2019

To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046

RE: vivo Mobile Communication Co., Ltd. FCC ID: 2AUCY-Y90 FCC Certification Confidentiality Request

Gentlemen:

This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material. vivo Mobile Communication Co., Ltd. requests that the following documents regarding this submission for FCC ID: 2AUCY-Y90 be kept Long-Term confidential:

Exhibit Type Block Diagram Schematics Operational Description Part list Tune-Up-Procedure

File Name 2AUCY-Y90_Block Diagram.pdf 2AUCY-Y90_Schematics.pdf 2AUCY-Y90_Operational Description.pdf 2AUCY-Y90_BOM.pdf 2AUCY-Y90_Tune up procedure.pdf

Those documents contain detailed system and equipment description and related information about the product which vivo Mobile Communication Co., Ltd. considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve, vivo Mobile Communication Co., Ltd. considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market.

Thank you for your attention to this matter.

Yours Sincerely,

(signature)

Print name: Xiang Jianfeng Title: Certification Engineer vivo Mobile Communication Co., Ltd.

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