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REFERENCE Laptop with power no display!

joren101213

joren101213

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Laptop Lenovo IdeaPad
Board #: EG521 EG522 EG721 NM-B452 (core i7)
Issue: with power no display not ram and GPU issue. Corrupted bios/firmware is the reason
Action taken: Flash Bios chips using rt809f Done

linis nadin ng thermal paste over ung pag lalagay.
3QP7tdw.jpg


0jwvDZl.jpg
 
Last edited:
rewin said:
may tanong la po master

anu po tawag parts na yan po, yan po ba kadalasan na parts pag sira pagwalang power ang laptop
Click to expand...
depende sa kung pano mo isolate kasi madaming issue pag no power, pero advice ko basic troubleshoot muna then isolate then go to advance. minsan kasi pag corrupt bios ito mga issue (nopower, battery notcharging, cannot format, hdd not detected, with power no display iba iba eh kaya dapat isolate ng maigi specially ung mga boat na may MAIN and EC bios kung minsan need mo din flash ung IO chips.
 
Boss ano2 ba mga testpoint sa board ng laptop.
Halimbawa no display pero may power
Tulad tangap q
Ginawa q.
Linis no luck
Connect monitor no luck
Check ram no luck
Vissual checking wala naman
Flash q bios ayun napatay.
Ano ba mga basic testpoint para malaman if bios na talaga
 
Hamnor said:
Boss ano2 ba mga testpoint sa board ng laptop.
Halimbawa no display pero may power
Tulad tangap q
Ginawa q.
Linis no luck
Connect monitor no luck
Check ram no luck
Vissual checking wala naman
Flash q bios ayun napatay.
Ano ba mga basic testpoint para malaman if bios na talaga
Click to expand...
ano model yan sir? check mo din baka malit ung bin file na ginamit mo pang flash and ano po gamit mo flasher?
 
Hamnor said:
Boss ano2 ba mga testpoint sa board ng laptop.
Halimbawa no display pero may power
Tulad tangap q
Ginawa q.
Linis no luck
Connect monitor no luck
Check ram no luck
Vissual checking wala naman
Flash q bios ayun napatay.
Ano ba mga basic testpoint para malaman if bios na talaga
Click to expand...
bigay mo saken exact model at ung board number para mabigyan kita working bin file and i try mo muna un. then if no luck padin check mo baka meron syang Main and EC bios try mo i flash sila pareho and try mo din flash ung IO chips kung post mo din dito ung part number ng SIO. pag nagawa mo na lahat ung sa firmware at ganun padin check mo nmn hardware baka not working na ung onboard ram kung meron man at kung meron din nmn xa video card test mo din para macheck mo baka need convert to uma. kung mga luma nmn yan at meron pa xan nec tokin repalace mo nec tokin ng 330 na value ng tantalum caps.
 
Hamnor said:
Ch341 ang gamit q na pang bios programer boss ba.narto qna sayang.pwedi ba kita add master para pagmay tangap aq pm kita.para pagnabasic qna wala padin pahelp aq.hati tau sa kita
Click to expand...
Pm mo lang ako master any time.
 
joren101213 said:
Laptop Lenovo IdeaPad
Board #: EG521 EG522 EG721 NM-B452 (core i7)
Issue: with power no display not ram and GPU issue. Corrupted bios/firmware is the reason
Action taken: Flash Bios chips using rt809f Done

linis nadin ng thermal paste over ung pag lalagay.
3QP7tdw.jpg


0jwvDZl.jpg
Click to expand...
Flash Bios chips using rt809f
boss puede rin kaya yang ios firmware or tools sa lenovo g40-70
same issue
at paano i flash itong loptop ko if black screen wala nman akong tools bios programer na box
 
Last edited:
paano e flash ang bios ng laptop po boss..
kc may laptop ako dito my power pero wlang desplay na try ko na ang ram
 
iane said:
paano e flash ang bios ng laptop po boss..
kc may laptop ako dito my power pero wlang desplay na try ko na ang ram
Click to expand...
Gamit ka po flasher rt809f po gamit ko need mo ng bin file ng bios.
 
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