: Always use the programmer software to "Read" and save a copy of the current (even if corrupted) chip data before overwriting it.
: A Windows PC with the programmer's driver and software installed. Download MSD3463 T4C1 TESLA 32K307BH Backup Dump rar
Firmware Update | Tesla Model 3 - EVOffer Installation Guide : Always use the programmer software to "Read"
: If you desolder the chip, ensure the "Pin 1" marker matches the socket alignment exactly to avoid permanent hardware damage. Download MSD3463 T4C1 TESLA 32K307BH Backup Dump rar
To use a backup dump file, you cannot simply use a USB drive; you must write the data directly to the TV's SPI Flash chip.