The typical procedure for a firmware update on a Tait is to read the tuning file and save it, read the codeplug and save it. Then update the firmware, then write the tuning file and then the saved codeplug.
If none of that works, then the only thing you can do is send it to Tait via a dealer. That said, the radio isnt worth what the flat rate repair would be.
SVR-TAM-FPR-TP8 | Repair TAM TP8 Portable | 350.00 |