I'm not sure. Maybe you missed a step?
Complete guide (I had to do it again today as I forgot my own password!):
Download configurator:
https://www.touslesdrivers.com/index.php?v_page=23&v_code=72193
(use tousledrivers server)
Go to
https://learn.microsoft.com/en-us/surface/surface-enterprise-management-mode
and use the "copy" button beside "Powershell" under "Self-signed certificate"
(as I said above, use the copy button, do not try to copy/paste yourself)
Create a folder in C:\ root folder called "SEMM"
Open notepad, paste contents from clipboard above into it. I chose to save
as filename "SSCert.ps1" (and chose "all files" under "Save as type").
Change permissions to allow scripts (remember to change it back when finished):
https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_execution_policies?view=powershell-7.5
I used PowerShell and typed "C:\SEMM\SSCert.ps1"
(It created the script for me in
"C:\Windows\system32\Demo Certificates" folder)
Run configurator you downloaded above (and I chose: Surface Devices/Configuration Package/Certificate Protection
(chose script just made and entered "12345678" (without the quotes))/Password Protection (leave blank)/
Surface Go/Go 2 (left everything enabled)/then next I turned off security, then chose "Windows Installer (MSi)
and saved as "password.msi"
Next, in the Windows search box, search for "msiexec" and choose "Run as administrator". Run the file:
I entered "C:\SEMM\password.msi"
Reboot
Reboot again, this time choosing: Windows/Settings/System/Recovery/Advanced Startup
Enter the UEFI settings: Troubleshoot/Advanced Options/UEFI Firmware Settings (then "Restart")
While in the UEFI, jot down the "serial number" for your device as you'll need it later.
Reboot.
Run configurator again: Reset/Cert/12345678/(serial number from above)/msi again and I named it as "reset.msi"
(in the folder of your choice; I chose the same SEMM folder above)
Run msiexec above again and this time run the new "reset.msi" file created above
Reboot
Boot back into the UEFI settings again (Windows/Settings/System/Recovery/Advanced Startup)
Hopefully your password is now removed. If not, you likely have an updated firmware in your
tablet and this won't work (mine says "1.0.31" I believe). Your only option now is to try to
get someone else to remove it for you. This website seems to have people who can do that, somehow...
https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/103830-microsoft-go-2-1927-bios-unlock-way
Good luck!
P.S. Microsoft, at the moment, still has factory restore images for Surface Go 2:
https://support.microsoft.com/en-us/surface-recovery-image
Sucky part is you MUST create an account to download images now...
