Bootloader faults, Fault_bl_invalid_image_crc – 200h, Cause – ThingMagic M5e-Compact User Manual
Page 216: Solution, Fault_bl_invalid_app_end_addr – 201h

Bootloader Faults
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Appendix C: Error Messages
Bootloader Faults
The following table lists the common faults discussed in this section.
FAULT_BL_INVALID_IMAGE_CRC – 200h
Cause
When a Verify Image CRC (0x08), or Boot Firmware (0x02) command is issued, the
reader checks the image stored in flash and returns this error if the calculated CRC is
different than the one stored in flash.
Solution
The exact reason for the corruption could be that the image loaded in flash was corrupted
during the transfer or corrupted for some other reason.
To fix this problem, reload the application code in flash.
FAULT_BL_INVALID_APP_END_ADDR – 201h
Cause
When a Verify Image CRC (0x08), or Boot Firmware (0x02) command is issued, the
reader checks the image stored in flash and returns this error if the last word stored in
flash does not have the correct address value.
Solution
The exact reason for the corruption could be that the image loaded in flash got corrupted
during the transfer or, corrupted for some other reason.
To fix this problem, reload the application code in flash.
Fault Message
Code
FAULT_BL_INVALID_IMAGE_CRC
200h
FAULT_BL_INVALID_APP_END_ADDR
201h