Acer V3-372 Wistron Mihawk 15208-3

[lordgeny]

Initial defect oes not turn on , dc in was in short.

I discovered PC4805 in short and i replaced .

now i have charging led and power on but i get one fan spin and video artefact.

i show the problem in this video : https://www.youtube.com/watch?v=Yc1ySObcORA


I already tried to Flash the bios , change the bios chip but no fix

[SMDFlea]

Re: Acer V3-372 Wistron Mihawk 15208-3

Any picture on external monitor

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

nothing

[String2016]

Re: Acer V3-372 Wistron Mihawk 15208-3

maybe graphics issue

[mcplslg123]

Re: Acer V3-372 Wistron Mihawk 15208-3

maybe graphics issue

I think this mb comes in intel only- no dedicated graphics

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

yes intel graphics only

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

Someone can convert this fd to bin or maybe send me a tutorial or link ?

[SMDFlea]

Re: Acer V3-372 Wistron Mihawk 15208-3

Here you go .

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

thank you .

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

Do you know what is QE=1 S9 QUAD Enable in mini prog ???? ch341a have same setting ??? i readed in a russian forum , one guy with same problem fixed programming with QE=1 in miniprog

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

i soldered a new flash ic with your bios and now i dont have any video glitch , plus i hear sound when unplog the charger ,.. but stil no boot

[SMDFlea]

Re: Acer V3-372 Wistron Mihawk 15208-3

Have you tried using an external monitor

[SMDFlea]

Re: Acer V3-372 Wistron Mihawk 15208-3

Do you know what is QE=1 S9 QUAD Enable in mini prog ???? ch341a have same setting ??? i readed in a russian forum , one guy with same problem fixed programming with QE=1 in miniprog

http://apkservice.ru/articles/page,1...na-ch341a.html

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

i found 1V_VCCGT short to ground

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

i think cpu is shorted

[SMDFlea]

Re: Acer V3-372 Wistron Mihawk 15208-3

Do you have the schematic and boardview

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

Yes i have

[lordgeny]

Re: Acer V3-372 Wistron Mihawk 15208-3

fixed ... new bios chip on programmed with mini pro ... i get all led on but black screen so y put a new ram on it and its boot .

So we got 3 problem :
1) short for a caps
2) new bios chip
3) ram

[giannicasa]

Re: Acer V3-372 Wistron Mihawk 15208-3

Yes i have

can u send me a schematic and boardview please

[giannicasa]

Re: Acer V3-372 Wistron Mihawk 15208-3

Do you have the schematic and boardview

do you have a schematic and boardview mihawk 15208-3??