Solution, Fault_flash_undefined_error – 302h, Cause – ThingMagic M5e-Compact User Manual
Page 218: Fault_flash_illegal_sector – 303h, Fault_flash_write_to_non_erased_area – 304h

Flash Faults
218
Appendix C: Error Messages
Solution
Make sure that you have the correct password for the flash sector.
Check the
for more information about the flash passwords and
sectors.
FAULT_FLASH_UNDEFINED_ERROR – 302h
Cause
This is an internal error and it is caused by a software problem in module.
Solution
Contact support at
FAULT_FLASH_ILLEGAL_SECTOR – 303h
Cause
An erase or write flash command was received with the sector value and password not
matching.
Solution
Make sure that you have the correct password for the flash sector.
Go to
for more information about the flash passwords and sectors.
FAULT_FLASH_WRITE_TO_NON_ERASED_AREA – 304h
Cause
The module received a write flash command to an area of flash that was not previously
erased.
Solution
Erase that sector of flash and then, try and rewrite to it.