Acer VN7-591G start without CPU/GPU voltage - Cannot flash BIOS

ktmmotocross

Boardkiller

Join Date: Feb 2014

Posts: 3582

Country: slovakia
#1

Acer VN7-591G start without CPU/GPU voltage - Cannot flash BIOS

01-12-2021, 08:08 AM

I have this Acer VN7-591G that start without CPU/GPU voltage

I try to flash BIOS but cannot erase it. Chip is GD25B64BSIG

Programmer is CH341.

cannot find datasheet to find some interchange ic
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ktmmotocross

Boardkiller

Join Date: Feb 2014

Posts: 3582

Country: slovakia
#2

01-12-2021, 08:50 AM

Re: Acer VN7-591G start without CPU/GPU voltage - Cannot flash BIOS

after maybe 5 times it looks that i reprogram it but still have only 3/5V and 0.47W consumption

Board code is Hades_HBS 14206-1

Last edited by ktmmotocross; 01-12-2021, 08:52 AM.
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Conste

Badcaps Veteran

Join Date: Oct 2018

Posts: 235

Country: Germany
#3

01-13-2021, 03:59 AM

Re: Acer VN7-591G start without CPU/GPU voltage - Cannot flash BIOS

which program did u use?

I often use AS Programmer if other programs fail, bc AS knows more EEPROMs
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Acer VN7-591G start without CPU/GPU voltage - Cannot flash BIOS

Acer VN7-591G start without CPU/GPU voltage - Cannot flash BIOS

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