As tu changé la coque de ton M3 ? Si oui, il semblerait que ce soit du à ca !
Citation:
M3 Lite have problem in "Write PSRAM fail! ". When you change the case of M3 Lite, you should take care some point. -
· problem 1: only appear 6 icons in M3 NDS menu（usually 8 icons）
· problem 2: display a message “Write PSRAM fail! System will be shutdown “ , then can’t boot up.
cause 1: after changing case, the PCB be placed in wrong place.
solution 1: place the PCB on the correct place.
solution 2: use other case
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Je te file le lien du site où j'ai trouvé ca :
M3 Manual