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https://www.fcc.gov/consumers/guides/hearing-aid-
compatibility-wireline-and-wireless-telephones
Regulatory
Settings >About device >Regulatory
Care and Maintenance
The following suggestions will help you maintain and
prolong the life of your device.
• Only qualified and authorized personnel should
make repairs to this product.
• Disabling features such as Bluetooth and Wi-Fi
when not in use and dimming the screen can help you
save energy and extend battery life.
• Clean your phone and charger with a soft, clean,
dry cloth. If the screen comes into contact with liquid
or dust, please clean it immediately. Do not use
alcohol or irritating chemicals to clean the device.