Re: [BIOS REQUEST] HP Pavilion 15-BS521TU - Black screen after update BIOS to F.73

Hi boys,

After few hours..i get a backup of my actual BIOS ROM, the latest BIOS RAM flashed is F.73.

I used to extract my current BIOS "NeoProgrammer V2.2.0.10" which I found on this forum.

Regard, Agustin...

Re: [BIOS REQUEST] HP Pavilion 15-BS521TU - Black screen after update BIOS to F.73



Hi @qayum786

My BIOS chip is Winbond 25Q64JVSIQ (I saw that it was read/write compatible with my chip) and I buy a CH341A with clip for SOIC8 SOP8 (to avoid desoldering/soldering) in Amazon (It should arrive in a few hours).

I will notify you to have the programmed and the backup of the corrupt BIOS

Regards, Agustin...

Re: [BIOS REQUEST] HP Pavilion 15-BS521TU - Black screen after update BIOS to F.73



Hi @qayyum786,

Sorry, about that i am new in the forum, i share the detail specified:

BRAND & MODEL NUMBER: HP Pavilion 15-BS521TU
SERIAL NUMBER / SERVICE TAG: CND7440RSK
MOTHERBOARD PART NO: CSL50/CSL52 LA-E791P Rev:2.0 and date: 2017-07-18
COMPLETE BIOS BACKUP: At the moment, i don't have a backup file, buy I buy a programmer USB to extract them.
PROBLEM/ISSUE: It does not show video on the screen after bios update but it does turn...

Hi boys,

This is my first post in BADCAPS and I hope I don't make any mistakes and give the correct explanations.

Yesterday a friend brought me this laptop home to expand the RAM to 16GB of RAM and update it since it had been abandoned recently.

Everything was fine, until I made the mistake of updating the BIOS to version F.73 from version F.24, since after according to HP "updating correctly" the laptop never worked again, leaving the screen black but the fan is working and the light of M.2 is on.

After having carried out all the frequent...

Re: New Members - please post your introductions here

Hi boys,

My name is Agustin from Spain (Madrid) and I am a systems administrator, I dedicate myself in my free time to repairing computers, whether hardware/software problems, never at a low level or with BIOS programmers, etc., therefore I hope to learn in that sense.

Regards and thanks for everything.