I’m dealing with a firmware issue on a Dell XPS 9315. After PopOS build in firmware update tool found and install the BIOS v1.29.1, the laptop started showing TPM errors on boot:
- Alert! TPM could not be initialized.
- Alert! TPM device is not detected.
Since then, the TPM is completely missing in BIOS and in the OS.
Here’s what I tried so far:
- Downgrade is blocked because BIOS 1.29.1 is marked as “critical.”
- Reflashing the same version does not help.
- Left the laptop without battery for a week – no effect.
- Updated to BIOS 1.31.0 – problem
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