plavielle

Tinkerer

It's done, i've do it 2 days ago.

StevenGen, i dont have enought time to search and find some chip or chip vendors, so i have made it. The problem with desoldering is, if you dont have the right tool (hot air gun) you risk to damage the board. I fortunately i have 16 unit of this type so it's easy to get a good bios image.

Je me suis repondu tout seul ici (solution à mettre en topic car cela peut aider du monde) https://community.acer.com/en/discussion/664283/n4640g-bios-recovery-procedure

Here you can put this response into topic "how to recover N4640G bios" What you need to check before to start is the reference of the bios chip (generally near cr2032 battery) and check it work at 5V or 3.3V. If not you can damage the chip. I think this procedure can work on most computer without desolder the chip.…

i think, but the bios fil on acer web site = 6 MB and Bios chip is a 16 MB. Another strange thing. Thanks for your help

we're going to view tomorrow. bios battery + unplug. If it doesnt work i'm going to try to dump the bios (16MB chip) and write to this computer (if i dont crash the good one).

j'ai tester tous les bios. Avec ceux ou il y a 2 fichier (mefw.bin et *.cap) apres les bips le ventilateur baisse sa frequence rotation, donc on dirait que quelquechose se passe mais, cela ne prends quand meme pas la mise à jour.

Not for a night. I've pull away for 20 minutes only. I can try this. Thanks

Aucune idee. Malheureusement. Mais quelle serait la procedure à utiliser ??? Car je peux tester tous les bios, si bien sur le bios qui etait present dans la machine correspond a un de ceux publié sur le site de ACER (des fois suivant le constructeur, on ne retrouve pas le bios installé sur la machine sur le site du…

Impossible de retirer la carte c'est un mini pc.