Hi there, Firstly thanks for reading, I've been searching through various threads and videos across the internet for the last little while and I was hoping that the wonderful folks here could help me answer some lingering questions I've got.
So I have several laptops with BIOS passwords that I'm unable to remove conventionally (no good boot drive and backdoor password doesn't exist) like my Lenovo T460s for example. I've been looking into possibly flashing a clean version of the BIOS firmware from a machine that doesn't have a password (most likely one found here on the forums or elsewhere on the web) with the process shown in this video.
https://www.youtube.com/watch?v=OttN8wQ1HhE
So far I've heard differing things on whether a process like this where I write a new bios directly to the chip would solve the password issue, or if there's some other location I would need to flash.
I'm hoping to have an answer for this T460s specifically as it's of the greatest importance to me but I'd also like to have the general knowledge as to what commonly works and what doesn't to remove these passwords so that I can apply it to other devices in the future.
I was also wondering how to tell between a 24x and 25x bios chip and if there are other forms that I need to be aware of.
Finally, while I'm not overly concerned with it, is there any chance of permanently bricking the bios chip as long as I copy the original firmware.bin to my system from the chip before any flash so that I may copy the original back later.
Thanks for reading, I'm still a little new here so please let me know if I need to move this to another thread section or if I must break up my questions into separate posts.
Any info is greatly appreciated, I feel very lost right now
So I have several laptops with BIOS passwords that I'm unable to remove conventionally (no good boot drive and backdoor password doesn't exist) like my Lenovo T460s for example. I've been looking into possibly flashing a clean version of the BIOS firmware from a machine that doesn't have a password (most likely one found here on the forums or elsewhere on the web) with the process shown in this video.
https://www.youtube.com/watch?v=OttN8wQ1HhE
So far I've heard differing things on whether a process like this where I write a new bios directly to the chip would solve the password issue, or if there's some other location I would need to flash.
I'm hoping to have an answer for this T460s specifically as it's of the greatest importance to me but I'd also like to have the general knowledge as to what commonly works and what doesn't to remove these passwords so that I can apply it to other devices in the future.
I was also wondering how to tell between a 24x and 25x bios chip and if there are other forms that I need to be aware of.
Finally, while I'm not overly concerned with it, is there any chance of permanently bricking the bios chip as long as I copy the original firmware.bin to my system from the chip before any flash so that I may copy the original back later.
Thanks for reading, I'm still a little new here so please let me know if I need to move this to another thread section or if I must break up my questions into separate posts.
Any info is greatly appreciated, I feel very lost right now
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