Do not want to spam, but more to share my findings.

Booting with your cleaned EC resulted in a different EC file. I read it again and it seems that the EC is alter in one of the pw spots

I tested the L14_clean_EC.bin and was able to boot, but "system configuration is invalid" is showing up everytime. I will try to rebuild my original file with the L14 one and give it a try....

Hey, sorry for delay. I would appreciate if you tried the pw removal again. I dont see a point on what to change in the file again.

Do you have experience with flashing a 'clean' EC file from a different SN laptop? Found clean EC file for a L14 i5 10th gen

Model# NM-C631 with NPCE68APA

I wasnt able to get it to boot with shorting. Always been stuck on logo....

I reviewed your file and saw that I made an error before and erased too little. Thank you for correcting my mistake!

Bit of back story: laptop had "bottom cover tempered" error before playing with EC firmware. Do you think that is still in firmware hidden? And maybe is our problem?

Also I saw you provided a lot of files for other guys in this topic. It was nice to follow your process of thought on these. Did you ever get feedback from ppl that a removed pw section in EC firmware succesfully cleared the supervisor pw?...

Thank you for the effort. Sadly I forgot to disconnect bios battery and flashing went wrong. Seems like I bricked the EC firmware. Laptop doesnt start anymore and EC is not detected by SVOD4. I will have to buy a new chip probably or try an out of chassis adapter. I tried to reset the board (no charger, no battery etc)

Edit: I am sorry for the confusion. I am fairly new to working with EC firmware. Without a battery plugged while trying to connect, the EC was recognized again. For me that is odd as the NPCE68APA was only working with SVOD4 with battery connected. I was able to flash...

Ah, sorry. I figured I could have done that right away. I compared the files and it seems, I dont have the list in the 3D620 range. Also, I should mention, I tried your "shorting method" without success before. Dont know if that might have corrupted some data.

SN PF-1VEWD0
TN 20U4-S09200

Your "try2.bin" did not work. Did not boot. Possible due to bad SN...

Hi, trying to erase the supervisor password on a ThinkPad L15 gen 1 as well.

I found the three areas (3C420-3C45F, 3D420-3D45F, 3CC20-3CC3F), which contained the password or part of it. I cleared with with 00 or FF and still get "SVP error" on boot. Can you share your knowledge from the last post please? I dont seem to understand....