GQ-4x can read the chip but didnīt erase the chip. I tried so many time but nothing empty. Blank Checking Gq-4x said " Device blank check failed at address 0x000000, Read= 0x91."
I tried to write new bios-file. GQ-4x worked fine with red-led, after writing without problems but verifing failed, I read the chip again and nothing changed in the chip.