ByGB Blog Official 2017-02-02 15006
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1. Prepare a computer, your device and a working USB cable or TF card reader.
2. A battery charge of 50% or greater is required before installing. (or plug your device in the power socket near your PC).
3. Do remember to backup your important files in your TF card or your PC in case of the data lost during the firmware flash process.
4. Do follow the firmware flash operation guide and operate correctly.
5. Do NOT do any operation on your device during the firmware flashing process in case of operation failure.
6. Other cautions when needed due to the specific ROM or product.