Nubia NX669J Guide De Démarrage Rapide page 15

reliable official website.
The installation of a third-party ROM or non-official
operating system might bring safety risks and security
threats. Nubia Technology Co., Ltd. shall not be liable for
these risks and threats caused by upgrade of the operating
system.
FCC Hearing-Ai d Compatibility (HAC)
Your phone is compliant with the FCC Hearing Aid Compatibility
requirements.
The FCC has adopted HAC rules for digital wireless phones. These
rules require certain phones to be tested and rated under the
American National Standard Institute (ANSI) C63.19-2011 hearing
aid compatibility standards. The ANSI standard for hearing aid
compatibility contains two types of ratings:
• M-Ratings: Rating for less radio frequency interference to
enable acoustic coupling with hearing aids.
Not all phones have been rated. A phone is considered hearing
aid compatible under FCC rules if it is rated M3 or M4. These
ratings are given on a scale from one to four, where four is the
most compatible.
WARNING: Cancer and Reproductive Harm -
www.P65Warnings.ca.gov.
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