Hi,
after any modification with UEFITool (adding/removing a module for example), the new image causes a blackscreen where the board fails to initialize and reboots forever.
Did they put in some kind of modification check?
There is a “FirmwareAuthentification” PEI which seems kinda suspicious and may be doing some kind of certificate check preventing initialisation at a first glance
The reason for the mod is adding in a (pcie) sd card driver so the os can be booted from an sd card since I have no ssd lying around and its fast enough for its usecase.
From the efi shell the driver works as expected and loads in without issues.
Link to the dump: lenovo_b50-30_full_dump_original.bin - Google Drive
Thanks