Help needed in unlocking BIOS Supervisor password - Lenovo X1 Yoga 5th Gen

[baaligoga]

Good day, everyone!

I'm encountering an issue with my Lenovo X1 Yoga 5th Gen laptop related to the BIOS supervisor password. I'm seeking assistance and guidance from the knowledgeable members of this community in resolving this problem.

I am no expert and cannot perform soldering or unsoldering of the chip from the board. Therefore, I attempted to use an EZP 2023 programmer with a clip to extract the BIOS bin file without removing the BIOS chip from the motherboard. The BIOS chip has the following letters imprinted on it: "Winbond 25Q80DVNIG 2026". I used the BIOS+ programmer software that came with the EZP programmer bundle. Initially, the software did not detect the chip, but I manually changed the model and type (winbond, spiflash, 25Q80) to make it work. The result of this process was a saved bin file, which was only 1 MB in size. I suspect that I did not successfully extract the original bin file.

My goal is to unlock the supervisor's password and regain access to the BIOS settings. If anyone has experience or knowledge in this area, I would greatly appreciate your guidance and assistance.

I have a few specific questions regarding this process:

Has anyone used the EZP 2023 programmer with a clip to extract the BIOS bin file from a Lenovo X1 Yoga 5th Gen laptop's BIOS chip? If so, could you please share your experience and any tips or precautions I should keep in mind?

Are there any alternative methods or tools that have proven to be successful in unlocking the supervisor password for this particular laptop model? Any recommendations or suggestions would be highly appreciated.

In case I manage to extract the original BIOS bin file, what steps should I follow next to unlock the supervisor's password? Are there any specific software tools that can assist with this process?

I'm eagerly looking forward to your responses and advice. Thank you in advance for your valuable support!

[baaligoga]

Re: Help needed in unlocking BIOS Supervisor password - Lenovo X1 Yoga 5th Gen

After conducting further research on the internet, I discovered that my laptop has another BIOS chip from Winbond, which is considerably larger in size compared to the one I previously found. The numbers imprinted on this chip are "25Q256JVEQ 2031 6016 42100". Additionally, my earlier findings suggest that the chip I initially identified was likely for the Thunderbolt 3 interface and not the BIOS.

Unfortunately, my attempts to use the clip method with the EZP programmer were unsuccessful, as I received an error indicating that no chip was found with the clip. This situation may require me to step into the territory of desoldering the BIOS chip in order to proceed further.

I would greatly appreciate any assistance or guidance regarding the process of dumping the original BIOS and unlocking it. Your expertise and support would be immensely helpful.

Edit: Is EZP 2023 Programmer capable of detecting and dumping the bin file for the above BIOS chip which appeared to be having a 32 Mb bin file? or Will I need a different hardware and software altogether to proceed further? Kindly help with this query as well.

[volinakis]

Re: Help needed in unlocking BIOS Supervisor password - Lenovo X1 Yoga 5th Gen

you need to program EC which is MEC1633

https://www.badcaps.net/forum/showth...ghlight=X1+gen