Before using an SD Card in the TM-6PRO, it should be formatted. Here's how:
CAUTION: Formatting an SD Card in the TM-6PRO will permanently erase any data that may be stored on the card. Be sure to backup any data you wish to save before proceeding.
1. Turn on the TM-6PRO.
2. Insert the SD Card in the card slot.
3. Press the MENU button.
4. Press the cursor buttons to navigate and highlight "SYS," and then press ENTER.
5. Cursor down to highlight "SD Card," and then press the function 3 button for "SELECT."
6. Cursor down to highlight "SD Card Format," and then press the function 3 button (SELECT).
7. Press function 3 (EXECUTE).