LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

[kodox]

thank's for making the process alot simpler @Knucklegrumble,
the tool you made is working to remove supervisor password on
Lenovo ThinkPad L13 with machine type 20R3 but, with some issues
that later i came across with my own solution & i wanna share
my solution that worked for me, because i've searched the net and
no one come with the solution.

after flashing patched bios to the chip i ignored message that said:
2204: System configuration data is invaid
and continuing the process that described on page 1, after re-flashed
original bios back to the chip the error message still exist, i thought
because i haven't done the "restore default" menu in bios and not attached
anything to the motherboard except screen, charger and usb keyboard

after restoring default in bios the error message still there and i still
ignored that, put back all together, set the date & clock and leave everything
on default value, exit the bios and before it boot to window the error 2204
emerge and halt the boot process, ask me to press ESC to continue and i did,
booted to window normaly and everything okay in windows, restart and error
2204 is halting again, asking to press ESC to continue (this time it get
my attention though). everytime the laptop turned on (cold boot or warm boot) always
halted by error 2204.

checked all serial in bios information it's all there, not invalid or missing.
i did all the steps on adding or editing DMI info using tool in
https://www.badcaps.net/forum/troubl...=5#post1622424
everytime i try to add using the tool it's always said "Data of the same device type is already in EEPROM"
searched for reference on error 2204 and found nothing related to my problem,
after intense nerf fighting i decide to take a risk that would brick this Thinkpad L13,
this is what i've done:

1. build bootable fdd using "Lenovo Gold Key U1 Tool", i followed instructions till creation using u1.exe
2. booted the fdd and choose top of the menu (forget to take picture)
3. press any key after choosing the top menu
4. i followed instruction coolshrimp here https://www.badcaps.net/forum/troubl...74#post1711774, i think the instruction from coolshrimp a bit different but, the main goal is the same, to empty stored data on eeprom & enter same data but with diferent "aproach" using the tool (i think), just remember to read the S/N first and take a picture of it, cause you'll need reenter those exactly the same as it was
5. after initializing eeprom chosen, the process could take 40-60 seconds so be patient and don't interupt
6. when done initializing it will ask to enter serial number, enter the "C0" section from the picture you take exactly the same
7. after that it will generate UUID & brand name, just choose "yes"
8. after done and pressing enter, it will go back to S/N utility. if not just try to explore one by one menu until you found it, in S/N utility choose "add S/N" and choose "B0" then enter serial from the picture you take exactly the same
9. choose exit from sub menu until main menu choose exit (shutdown)
10. done

sorry for the long story, hope it helps