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Developer options

To enable this function, go to Settings > System > About phone, then touch Build

number 7 times. Now Developer options is available. The developer options

contain settings that are useful for developing Android applications.

Reset

Tap to reset all network settings and app preferences, you won't lose your data with

these settings.

If Factory data reset is selected, all data in your phone's internal storage will be

erased, please back up your data before reset.

Regulatory & safety

Touch to view product information such as Product model, Manufacturer name,

Manufacturer address, IMEI, CU reference, Bluetooth Declaration ID, etc.

User Experience Improvement Program

Touch to join the User Experience Improvement Program so we can continue to

improve our product design and overall user experience.

Questions and Answers:

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Do you have a question about the TCL 20S and is the answer not in the manual?

TCL 20S Specifications

General