Forum RSS Feed Follow @ Twitter Follow On Facebook

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



Latest Threads
[REQUEST] EVGA 132-BL-E758 BIOS Unlock
Last Post: cyberwillis
Today 08:24 PM
» Replies: 1
» Views: 273
[REQUEST] Acer Nitro 5 AN515-54 BIOS Unl...
Last Post: Getmanstrah
Today 07:28 PM
» Replies: 66
» Views: 16173
[REQUEST] HP Pavilion dv5-1100 Series BI...
Last Post: Cteick
Today 05:36 PM
» Replies: 19
» Views: 3667
[REQUEST] Lenovo G510 (79CNxxWW) BIOS Un...
Last Post: Lupo1234
Today 03:38 PM
» Replies: 102
» Views: 38528
[Request] Zotac Magnus One AMI Bios unlo...
Last Post: igor244
Today 01:52 PM
» Replies: 53
» Views: 5945
Last Post: DEza
Today 12:37 PM
» Replies: 224
» Views: 159539
I need update latest agesa rs690
Last Post: DeathBringer
Today 11:41 AM
» Replies: 15
» Views: 710
[Request] Lenovo Edge 15 80K9
Last Post: nastysimon
Today 09:26 AM
» Replies: 0
» Views: 61
[REQUEST] Lenovo B590 (H9ETxxWW) Whiteli...
Last Post: PanHazok
Today 05:52 AM
» Replies: 790
» Views: 147119
[Request] Update BIOS GA-AB350M-G3
Last Post: j.bisous
Today 03:04 AM
» Replies: 0
» Views: 82
Tools to mod DV6-3000 series
Last Post: islander
Yesterday 07:13 PM
» Replies: 0
» Views: 89
[REQUEST] Bios mod for Lenovo s440
Last Post: Dudu2002
Yesterday 02:18 PM
» Replies: 8
» Views: 3628
Unlock BIOS HP 250 G8 (27J99EA)
Last Post: GreeceDrummer
Yesterday 09:38 AM
» Replies: 0
» Views: 138
[REQUEST] Lenovo X200
Last Post: morgantech
Yesterday 09:31 AM
» Replies: 12
» Views: 12686
[REQUEST] Acer Aspire E5-571(G) BIOS unl...
Last Post: Dudu2002
Yesterday 02:58 AM
» Replies: 270
» Views: 78359
[REQUEST] HP 6300 PRO SFF ~ DVMT setting...
Last Post: poorcoin
Yesterday 02:54 AM
» Replies: 0
» Views: 117
[REQUEST] Acer Predator Helios 300 PH315...
Last Post: rtmzera
06-25-2022 06:38 PM
» Replies: 23
» Views: 5777
[WORKING] Asus P8Z77-V: NVMe BOOT Suppor...
Last Post: Noxon
06-25-2022 03:50 PM
» Replies: 16
» Views: 19907
Clevo P775TM1-G BIOS
Last Post: piermario67riva
06-25-2022 03:26 PM
» Replies: 138
» Views: 47675
TOSHIBA QOSMIO G50 Need help modding bio...
Last Post: DeathBringer
06-25-2022 02:32 PM
» Replies: 18
» Views: 513

[REQUEST] HP Compaq 6730b BIOS Unlock
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...
(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?
(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.

Forum Jump:

Users browsing this thread: 3 Guest(s)