Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
[Request] BIOS Dump/Backup of Lenovo T50...
Last Post: Rapadura
Today 02:48 PM
» Replies: 2
» Views: 3754
[REQUEST] Lenovo Z50-70 & Z40-70 (9BCNxx...
Last Post: marmoon
Today 12:56 PM
» Replies: 760
» Views: 402783
Hp probook 6560B Upgrade to Ivy Bridge
Last Post: DeathBringer
Today 12:19 PM
» Replies: 8
» Views: 725
[REQUEST] acer nitro 5 AN515-58 597M
Last Post: Dnetford
Today 07:57 AM
» Replies: 0
» Views: 54
[REQUEST] Lenovo B590 (H1ETxxWW) Whiteli...
Last Post: ozowelsh
Today 03:46 AM
» Replies: 799
» Views: 512954
HP G72-b60US advanced menu unlock
Last Post: bigcid10
Yesterday 06:38 PM
» Replies: 4
» Views: 7550
[REQUEST] Lenovo B580 (H1ETxxWW) Whiteli...
Last Post: lamirekhalihana
01-27-2026 04:24 PM
» Replies: 162
» Views: 86432
[REQUEST] Lenovo Y400 & Y500 (6BCNxxWW) ...
Last Post: Dudu2002
01-27-2026 03:33 AM
» Replies: 161
» Views: 101288
HP ProDesk 400 G1 DM: New CPU Support
Last Post: Rubilnik
01-26-2026 12:55 PM
» Replies: 19
» Views: 7422
(Request) Hp Reno (89B5) bios to support...
Last Post: DeathBringer
01-26-2026 12:49 AM
» Replies: 1
» Views: 188
BIOS MOD FOR DELL N7110 UNLOCKED UEFI BO...
Last Post: shopbody
01-25-2026 06:26 AM
» Replies: 36
» Views: 76000
ASUS TUF FX504GD BIOS Unlock Request
Last Post: steelray124
01-24-2026 05:04 AM
» Replies: 30
» Views: 15496
Request for BIOS Unlock / Undervolt Supp...
Last Post: hakeristss
01-23-2026 05:31 PM
» Replies: 1
» Views: 1302
[REQUEST] Dell Inspiron N5110 BIOS Unloc...
Last Post: memzsalvatore
01-23-2026 03:48 PM
» Replies: 11
» Views: 6444
[REQUEST] Lenovo G40-70 (9ACNxxWW) White...
Last Post: LevyBrandon
01-22-2026 08:03 AM
» Replies: 39
» Views: 22282
custom Bios for ECS P5SD-A to support LB...
Last Post: GusG
01-21-2026 04:54 PM
» Replies: 0
» Views: 349
not able to access bios
Last Post: Labud
01-21-2026 04:32 PM
» Replies: 0
» Views: 249
[REQUEST] HP G62-100, -200, -300 & -400 ...
Last Post: JetstreamSam
01-20-2026 08:57 PM
» Replies: 53
» Views: 30432
[REQUEST] Lenovo G700 (7ACNxxWW) Whiteli...
Last Post: Dudu2002
01-20-2026 04:42 AM
» Replies: 164
» Views: 104539
TerraMaster F2-221 BIOS MOD
Last Post: sd1898
01-19-2026 02:38 PM
» Replies: 2
» Views: 8024

[REQUEST] HP Compaq 6730b BIOS Unlock
#11
Can you or anyone else help me un-brick this laptop?

I've connected my CH341A to the EEPROM (SST25VF016B) and read the IC with ASProgrammer, and confirmed that the full BIOS rom you provided was correctly flashed into the memory. Next I tried to write the original BIOS back into the EEPROM but now ASProgrammer provides me an error saying the EEPROM is Write-Protected. I next attempted to remove write protection using the "Unprotect" button in ASProgrammer but that failed as well.

I figured that maybe the custom BIOS was preventing the flash from working, so I next wiped the IC, which worked and replaced all bytes in the EEPROM with F's. Unfortunately I still cannot Unprotect the EEPROM nor can I write the original BIOS to the EEPROM. Any help is greatly appreciated!

Edit: I should also add that I have made a USB BIOS recovery media which also failed to boot and restore the original BIOS. At this point I don't know what to do as pressing the power button does completely nothing now, not even spin up the fans let alone the display. I assume this is because I wiped the corrupted BIOS, but I guess there's really no difference between having a corrupted BIOS and not having a BIOS...
find
quote
#12
(10-31-2021, 01:37 PM)Maxinator500 Wrote:
(10-31-2021, 01:06 PM)HP_ENVY_User_32 Wrote: Did you create this BIOS?
It was me. Also, want to tell that I'm definitely not a reputable modder as dealing with me users often brick their devices.

Are you able to provide any support for this issue?
find
quote
#13
(11-01-2021, 10:36 PM)HP_ENVY_User_32 Wrote: Are you able to provide any support for this issue?
Tie VDD pin to WP# pin. It'll make WP# pin to be driven high and disable write protection registers.
Provided that the software you are using works correctly and the programmer operates with the chip at a proper voltage, I think everything should work out.
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)