I tried with a card that has old luma files (the card that I used before I switched to my main card) and it didn't work. then I tried to delete all the files in this card and it also didn't work. but the luma files were old. the boot.firm of this card was an old one.I think he meant run GM9.
Yeah I suspect that might be the issue.
No idea why it crashed but I doubt it's related to the SD card thing. It could have corrupted the card in such a way that it thinks it's write protected but you said you tried another SD card so....
When you tried another SD card did you download fresh Luma files and put them on?
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but I don't think it's the card. I think it's the reader itself because the card works completely fine in my pc.I tried with a card that has old luma files (the card that I used before I switched to my main card) and it didn't work. then I tried to delete all the files in this card and it also didn't work. but the luma files were old. the boot.firm of this card was an old one.