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] Lenovo Yoga 2 Pro (76CNxxWW) W...
Last Post: cpih
Today 12:03 PM
» Replies: 846
» Views: 328660
Delete Whitelist HP 15s-eq1000
Last Post: gdefareins
Today 09:02 AM
» Replies: 3
» Views: 159
[REQUEST] Lenovo Y470 & Y570 (47CNxxWW) ...
Last Post: jabbari74
Today 03:37 AM
» Replies: 25
» Views: 18121
[REQUEST] Lenovo Thinkpad T420 (83ETxxWW...
Last Post: lucasow
Today 03:02 AM
» Replies: 315
» Views: 194356
[REQUEST] Asus PRIME B460M-A modding bio...
Last Post: hnoimahi
Yesterday 08:04 AM
» Replies: 1
» Views: 253
[REQUEST] Lenovo G580 (62CNxxWW) Whiteli...
Last Post: Dudu2002
Yesterday 05:34 AM
» Replies: 809
» Views: 246960
[REQUEST] Asus maximus X Code "fan profi...
Last Post: appletechgeek
Yesterday 12:12 AM
» Replies: 0
» Views: 123
[REQUEST] Acer Aspire S3-391 BIOS Unlock
Last Post: Dudu2002
04-26-2024 04:27 PM
» Replies: 57
» Views: 25715
[REQUEST] Lenovo V580(c) (H1ETxxWW) Whit...
Last Post: Dudu2002
04-26-2024 04:26 PM
» Replies: 588
» Views: 148194
[REQUEST] GL504GS BIOS unlock
Last Post: pl4gue
04-26-2024 12:19 PM
» Replies: 75
» Views: 59409
[REQUEST] Thinkpad T14S G3 AMD (Type 21C...
Last Post: Dudu2002
04-26-2024 04:37 AM
» Replies: 1
» Views: 154
[REQUEST] Lenovo B490 (H1ETxxWW) Whiteli...
Last Post: sardax
04-25-2024 10:03 PM
» Replies: 101
» Views: 32055
[REQUEST] Acer Aspire E1-571(G) BIOS Unl...
Last Post: Dudu2002
04-25-2024 04:44 PM
» Replies: 127
» Views: 58459
Acer Predator Helios 300 N17C1 G3-572-79...
Last Post: chadreuel
04-25-2024 11:39 AM
» Replies: 0
» Views: 173
[REQUEST] Acer Nitro 5 AN515-56 BIOS Unl...
Last Post: Dudu2002
04-25-2024 07:25 AM
» Replies: 5
» Views: 928
[REQUEST] Lenovo Y50-70 (9ECNxxWW) BIOS ...
Last Post: Dudu2002
04-25-2024 03:52 AM
» Replies: 1972
» Views: 666067
[Request] Acer Aspire Z1620 (h61h aio v1...
Last Post: spingernexx
04-24-2024 06:09 PM
» Replies: 2
» Views: 218
[REQUEST] Lenovo G505 (82CNxxWW) Whiteli...
Last Post: khaos
04-24-2024 04:15 PM
» Replies: 155
» Views: 55748
Asus Prime b250m plus, RAM compatibility
Last Post: Slayery777
04-24-2024 06:23 AM
» Replies: 0
» Views: 202
[REQUEST] Bios Unlock Request Clevo W230...
Last Post: happycrazyman
04-23-2024 03:53 PM
» Replies: 0
» Views: 177

[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: 4 Guest(s)