ThingMagic M5e-Compact - Manual (Page 219)

Flash Faults
Appendix C: Error Messages 219
FAULT_FLASH_WRITE_TO_ILLEGAL_SECTOR – 305h
Cause
The module received a write flash command to write across a sector boundary that is
prohibited.
Solution
If the data spans two sectors, separate the data into two messages.
FAULT_FLASH_VERIFY_FAILED – 306h
Cause
The module received a write flash command that was unsuccessful because data being
written to flash contained an uneven number of bytes.
Solution
Verify that the data being sent is an even number of bytes.