File Request dump bios lenovo ideapad 520-15ikb

[user57416]

hi, i need dump for lenovo idea pad 520-15ikb, motherboard is EG521 EG522 EZ511 EG721 NM-B452 REV 1.0
I would try reprogram bios because it power on but black screen, if i short rtc battery it show display but later 1 or 2 days it will same problem.
Battery rtc is ok (3.1V)
thanks for your help

 

[user57416]

this is dump original

 

[Vahab Hemmati]

Bios - lenovo flex 5-1470 (flex 5-1570 yoga 520-14ikb) la-541p nm-b452 bios

lenovo ideapad 520-15ikb -ver 4wcn26ww dr- dump 8 mb

dr-bios.com

 

[user57416]

i try but with this dump it turn on black screen

 

[Vahab Hemmati]

this file is tested and working

Bios - lenovo flex 5-1470 (flex 5-1570 yoga 520-14ikb) la-541p nm-b452 bios

lenovo ideapad 520-15ikb -ver 4wcn26ww dr- dump 8 mb

dr-bios.com

maybe the problem is not related to bios

 

[user57416]

the strange things is that with original dump it work fine and i have display but after 1 or 2 days it turn on with black screen and if i reset battery cmos , display come back...

 

[Vahab Hemmati]

if the bios has display even only one time, that mean the bios is working fine

 

[user57416]

ok thanks for your help

 

[Vahab Hemmati]

ur welcome