I have found how to hard reset.
Firstly press power + reset.
And then press - and - buttons at the same time.
But another problem has been found.
In 6815 the camera is not working and making freeze even the camera patch is installed.
Firstly press power + reset.
And then press - and - buttons at the same time.
But another problem has been found.
In 6815 the camera is not working and making freeze even the camera patch is installed.
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