Joying Technology Co., Ltd

Full Version: MTCD_JY_V1.63_2 Rebel!
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People!
My player is rebellious!
Why do not you get some things ...
Example:
Keyboard in some letters, app ...!
Original is 4.2.2 and updated w / 5.1 and worsened player operation!
How to reset beyond the front, I have researched ... Nothing was better!
Back of the player is there any general reset button?
Tks!
Undecided