With the device fully dark, on your physical keyboard layout.
Repacking the TPM device involves reinstalling the TPM firmware and drivers. This process can often resolve detection issues and get the TPM device working properly. Here is a step-by-step guide on how to repack the TPM device on a Dell Vostro 5568: dell vostro 5568 tpm device not detected repack
Enter your service tag to locate the specific firmware for your . With the device fully dark, on your physical keyboard layout