TECNO HiOS 7.0
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The image isn’t clear
Check that the lens is clear or not, if not, clean it with the soft cloth.Get started
Recover the factory status
Touch Settings - Update & security - Recovery - Reset this PC - Get started - Remove everything to recover the system to the default status.
Prolong the usage time of the battery
Adjust the brightness of the touch Screen to proper level on the home screen.Get started