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 ThinkPad T480s (N22ETxx...
Last Post: Dudu2002
Today 03:26 AM
» Replies: 20
» Views: 6332
CLEVO BIOS Mods
Last Post: daniel_wu
Yesterday 09:41 PM
» Replies: 250
» Views: 423671
[REQUEST] Lenovo IdeaPad L340 (BGCNxxWW)...
Last Post: fatehkeane@gmail.com
Yesterday 04:43 PM
» Replies: 54
» Views: 16063
[REQUEST] Alienware M16 R1 AMD Bios Unlo...
Last Post: Arc717
Yesterday 04:41 PM
» Replies: 0
» Views: 91
Acer Aspire 7739G laptop. i need a modif...
Last Post: DeathBringer
Yesterday 02:29 PM
» Replies: 7
» Views: 185
[REQUEST] - BIOS crisis assistance for L...
Last Post: sandpa
Yesterday 02:21 PM
» Replies: 0
» Views: 65
[REQUEST] Asus ROG Strix GL702ZC BIOS Un...
Last Post: thyTwilightGoth
Yesterday 01:44 PM
» Replies: 168
» Views: 70173
[HELP] Cannot get the Ethernet and Intel...
Last Post: gigabitgigabit
Yesterday 10:21 AM
» Replies: 0
» Views: 88
HP Pro 3300 & 3400 (H61): Upgrade to Ivy...
Last Post: itsik
Yesterday 04:27 AM
» Replies: 119
» Views: 80889
[REQUEST] HP Probook 6570b Whitelist Rem...
Last Post: megdan
Yesterday 03:34 AM
» Replies: 3
» Views: 4245
[Request] Fujitsu Lifebook S7210
Last Post: Barongi
Yesterday 03:17 AM
» Replies: 5
» Views: 2352
[REQUEST] Acer Nitro 5 AN515-47 BIOS unl...
Last Post: Dudu2002
05-16-2024 08:55 AM
» Replies: 1
» Views: 145
[REQUEST] Adding DDR3 support to Aptio I...
Last Post: Lixkote
05-16-2024 02:36 AM
» Replies: 1
» Views: 295
ACER e5-721 recovery bios
Last Post: bergekste
05-15-2024 06:49 AM
» Replies: 35
» Views: 22555
[REQUEST] BIOS Unlock for Gigabyte G5-KD...
Last Post: Dudu2002
05-14-2024 06:45 PM
» Replies: 6
» Views: 499
[REQUEST] Lenovo ThinkPad L450 (JDETxxWW...
Last Post: Dudu2002
05-14-2024 03:29 PM
» Replies: 94
» Views: 42025
[REQUEST] Acer Nitro 5 AN515-54 BIOS Unl...
Last Post: Dudu2002
05-14-2024 03:19 PM
» Replies: 84
» Views: 26262
[REQUEST] Lenovo G500 (78CNxxWW) BIOS Un...
Last Post: Alan23
05-14-2024 11:54 AM
» Replies: 281
» Views: 126950
[REQUEST] Lenovo G70-70 BIOS Whitelist R...
Last Post: Dudu2002
05-13-2024 05:01 PM
» Replies: 134
» Views: 66981
[REQUEST] Acer Predator Helios 300 PH315...
Last Post: Dudu2002
05-13-2024 04:59 PM
» Replies: 11
» Views: 6268

Lenovo ThinkBook 15. Bypass dmi data modification protection
#1
Hello friends! Until that time, I could modify the bios (nvram dmi) zone of any laptop to my serial number data. Disabled bios lock, spi lock, FPRR, etc. And either through ch341a or fptw did it as needed.

But today I got into the hands of a Lenovo ThinkBook 15 G3 (Insyde bios) laptop on AMD Ryzen 5 5500u, in which I cannot change the data by the programmer. Because after rebooting, all laptop data is restored to the original !!
I even removed the BIOS chip from another identical laptop and soldered it into my laptop, and after the first boot of the laptop, the dmi zone data (serial number, model, article, etc.) was recovered from the current laptop (overwriting the data of the second laptop).
This suggests that the BIOS chip and its code does not contain laptop data that are constantly being restored by themselves.
I had an idea that perhaps this data is in another BIOS chip on the board (size 128kb, possibly a Network card), I also dropped it and turned on the laptop without it, but all modifications of the laptop data are still restored.
Tell me how to deal with this phenomenon? Is there a technique? Funds, programmers? How can you block this zone from modifications by the bios itself or delete this code in the bios code ..

Is there any information or progress in this direction? Help, friends.

Bios links:
https://pcsupport.lenovo.com/us/en/produ...IOS%2FUEFI
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)