Sorry to hear about your problem flasher.
It could a defective player, badly soldered memory chips or something.
I don't think the seller is always aware of hacked players, akaik the hacking is carried out by this factory to increase their profit, hope you can get this problem resolved.
btw it's a bit tricky opening this player up, I had to do it once to short out the nand to get into rockusb mode.
You need to remove the 2 screws from the end and ease the player apart in the middle, there are 2 hidden tabs that hold the player together in the middle, but I did scratch my player a bit because I tried to force it apart without realising about the 2 hidden tabs.
Also the buttons are a bit tricky to line up when re- assembling the player.
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