- Download the "Dell TPM 2.0 Firmware Update Utility" from the Dell support website
- Create a FreeDOS USB stick:
- Format USB stick to FAT32
- Mount USB stick (required by unetbootin)
- Download unetbootin
- Run unetbootin (as root), select FreeDOS, select the right volume, and install
- Copy the downloaded firmware update file to the USB stick
- Boot the laptop from the USB stick
- Once on the FreeDOS prompt, move to the USB stick volume by issuing
C:
- Execute the firmware update file, validate when prompted, device will reboot once done
- After rebooting, the Dell logo should appear with a message saying that the TPM is being upgraded
\o/ TADAAAAAAA \o/
TPM 2.0 now works!
Thanks for posting this!
I found for my old Dell XPS 9350 that FreeDOS 1.0 via unetbootin would not boot (blank screen with flashing cursor).
I was able to dd FreeDOS 1.3 LiteUSB img file onto a USB stick, copy the TPM 2.0 update utility to that filesystem, and then boot it to run the TPM update.