If your TNS510 hardware is failing or if a replacement card from a dealer is too expensive (often quoted at over £130 or R7,000), consider these "better" upgrade paths:
Ensure there is an original Toyota SD card in the slot below the radio. tns510 program cannot be read better
If you have access to a computer and a blank SD card, you can search for a downloadable "bootloader" or "loader file" for the TNS510. Placing a fresh loading.kwi file on a FAT32-formatted SD card (ideally 2GB–4GB) can often jump-start the system. If your TNS510 hardware is failing or if
The most common cause is the absence of the Map SD card. If the card was stolen or lost during a service, the radio will lock and display this error. tns510 program cannot be read better