After flashing a patched BIOS, you must re-enter your Service Tag and re-initialize the TPM (Trusted Platform Module).
A “patched” BIOS is not a corrupt or hacked file in the malicious sense; rather, it is surgically modified to achieve specific legitimate repair goals: dell latitude 3420 bios bin file patched
Because the Latitude 3420 often refuses USB recovery after a 0xDC crash, you must use an SPI programmer. After flashing a patched BIOS, you must re-enter