Hp 250-G2 osamu2_bt_hpc black screen

[gcomputers]

Hi i m working with this hp
(Main Board): osamu2_bt_hpc mv_mb_v1
its come with black screen i need to flash bios first . i attach my dump .
i need dump for hp 250g2 the original from HP website is different also the dump (Vinafix.vn_HP 15-d035dx OSAMU2_CR_HPC MV_MB_V1 SLJ8E 1M.bin) is different.

[meritosari]

Re: Hp 250-G2 osamu2_bt_hpc black screen

Are you sure the size of bios 8.192kb for this unit?

I've take look at osamu2_bt_hpc_mv_mb pics, there are two kind pieces of BIOS chips. one for EC and the other for Main.

May be someone have been touched to modify .bin file the bioses.

I've try to fix that file.

Try and report back


just found on another forum, this: (512+8Mb)

[highpulse]

Re: Hp 250-G2 osamu2_bt_hpc black screen

here it is working

[gcomputers]

Re: Hp 250-G2 osamu2_bt_hpc black screen

Thanks for your replies. my main ic is 8mb, and ec 512kb.
i try all this dump but the same problem no video, no caps lock .
all coils are powered , i have tried too reflow of cpu but no change, this machine come to me with scratched screen maybe is anything on board damaged. thanks anyway

[highpulse]

Re: Hp 250-G2 osamu2_bt_hpc black screen

well , then chek LVDS signal , LCD VCC ETC , also chek for memory compatibility , altely i0ve been grabing machines , clients mentioning no image , and after all they reaplce ram , and or is need a pc3l and there is a normal pc3 or viceversa .. chek does thing carefully , as also chek consumption of the all motherboard while on

[gcomputers]

Re: Hp 250-G2 osamu2_bt_hpc black screen

well , then chek LVDS signal , LCD VCC ETC , also chek for memory compatibility , altely i0ve been grabing machines , clients mentioning no image , and after all they reaplce ram , and or is need a pc3l and there is a normal pc3 or viceversa .. chek does thing carefully , as also chek consumption of the all motherboard while on

can you share schematic please?

[highpulse]

Re: Hp 250-G2 osamu2_bt_hpc black screen

is your UMA OR DSC BOARD ?

[highpulse]

Re: Hp 250-G2 osamu2_bt_hpc black screen

no shcme or bdv here , need follow logic

[gcomputers]

Re: Hp 250-G2 osamu2_bt_hpc black screen

Is UMA with logic i have tried near lvds connector i have 3v stable , and i checked the ram
on aspire-e1 and is ok. but the battery is scratched and lcd also i think this machine is dropped . i just bought osciloscope to check signal on bios ic .
anyway thanks

[highpulse]

Re: Hp 250-G2 osamu2_bt_hpc black screen

try this UMA version bios MAIN and also here it is EC

[gcomputers]

Re: Hp 250-G2 osamu2_bt_hpc black screen

try this UMA version bios MAIN and also here it is EC

tried this dump too , same problem no image.
i will check the slot of ram on microscope, this mobo have only one slot of ram.

[pcnetch]

Re: Hp 250-G2 osamu2_bt_hpc black screen

Thanks. It is working

[fester]

Re: Hp 250-G2 osamu2_bt_hpc black screen

for my laptop is working too,thanks highpulse

[mohammedsaid]

Re: Hp 250-G2 osamu2_bt_hpc black screen

thank

[Mr.dialogue]

Re: Hp 250-G2 osamu2_bt_hpc black screen

I need hp 15d osamu2-cr-hpc ec+main dump if anyone have plz share

[ytsoc]

Re: Hp 250-G2 osamu2_bt_hpc black screen

Are you sure the size of bios 8.192kb for this unit?

I've take look at osamu2_bt_hpc_mv_mb pics, there are two kind pieces of BIOS chips. one for EC and the other for Main.

May be someone have been touched to modify .bin file the bioses.

I've try to fix that file.

Try and report back


just found on another forum, this: (512+8Mb)

for me the fixed bios from this post worked( 250 g2 fix.zip )
My board is OSAMU2_cr_hpc and it does not have dedeicated video and the bios is split in 2 parts:4MB and 1MB

[girus]

Re: Hp 250-G2 osamu2_bt_hpc black screen

For my laptop HP 250-G2.fix working. Thanks meritosari

[boss juben]

Re: Hp 250-G2 osamu2_bt_hpc black screen

nid bios for rango_shb_hpc mv_mb_v1

[dineshn]

Re: Hp 250-G2 osamu2_bt_hpc black screen

NEED bios for rango_shb_hpc_mv_mb_v1

[bakour]

Re: Hp 250-G2 osamu2_bt_hpc black screen

thanks