I'm trying to get a friend's TRX-1 working again. On powering up the display shows a 5-00 error code. Any ideas? I have tried SD cards from various manufacturers and of different storage capacities. Nothing seems to change. TIA for any suggestions.
I would try downloading the SD Card Formatter from the SD Association. Format the card using that. You will still need to prepare the SD card for use using EZ Scan after the format.