T15 won’t boot from USB or HDD
Posted: Tue Dec 16, 2025 6:38 am
Hello
I am writhing this to ask for a help for a laptop that I recently got (company was selling their old stuff to employees)
So I got the laptop with windows installed on and wanted to remove secure boot and all the fluff that was previously there as bios/eufi settings. I turn off all security related settings and deleted then restored secure boot keys. From that point the machine can enter bios but will not boot from USB - screen goes black (did try few usb sticks - they work on my P50 laptop). exchange the 2 M2 drives from my P50 and T15 - P50 booted the windows that was on T15. T15 did not recognize the P15 M2 drive. Removed the cover of the T15 to get the BIOS chips info and I am wondering if requesting files for those, purchasing a programmer and attempting to flash bios with it without resoldering (using clamps ).
If anyone has an idea what could be wrong or if I am on the right track - let me know please
I am writhing this to ask for a help for a laptop that I recently got (company was selling their old stuff to employees)
So I got the laptop with windows installed on and wanted to remove secure boot and all the fluff that was previously there as bios/eufi settings. I turn off all security related settings and deleted then restored secure boot keys. From that point the machine can enter bios but will not boot from USB - screen goes black (did try few usb sticks - they work on my P50 laptop). exchange the 2 M2 drives from my P50 and T15 - P50 booted the windows that was on T15. T15 did not recognize the P15 M2 drive. Removed the cover of the T15 to get the BIOS chips info and I am wondering if requesting files for those, purchasing a programmer and attempting to flash bios with it without resoldering (using clamps ).
If anyone has an idea what could be wrong or if I am on the right track - let me know please