Write the patched BIOS dump (this will only function in that TP btw), start the laptop and generate a Hardware ID. This program will read the secure eeprom, reset TPM certificate and password, write secure eeprom and reconstruct all data.ģ. Patching the BIOS binaries and inject a small allservice.ro UEFI program. In a Thinkpad, the BIOS is married to the internal TPM chip and contains a unique signature of it, so it is important that the original BIOS to be a correct read out for the success of the whole operation and to restore the BIOS afterwards.Ģ.
Reading the BIOS and create a valid dump. Unlocking solution is finally available and requires SPEG programmer to be able to flash the BIOS.ġ. What we unlocked so far: see a more detailed list in the next post (scroll down more):
Eeprom is write protected update#
Maybe Lenovo will come around with another chip for the next models, so we will update the list with all those we tested already. These models listed below are using SMSC MEC1633L (or equivalents) to store the Supervisor password. Posted: Mon 10:17 am Post subject: Unlocking all new Thinkpads T440.T495, P53, X1 Extreme, etc > IBM/Lenovo ThinkPad Password Help Center (EN) Unlocking all new Thinkpads T440.T495, P53, X1 Extreme, etc Profile Log in to check your private messages Log in Support board, PC repair, unlocking solutionsįAQ Search Memberlist Usergroups Register Service Forum :: View topic - Unlocking all new Thinkpads T440.T495, P53, X1 Extreme, etc