Unable to Write Codeplug to TYT MD-UV390 Plus GPS 10W
I'm a new amateur radio operator and I recently bought a TYT MD-UV390 Plus GPS 10W handheld (as far as I can tell, it's the recording/REC version).
I'm having a strange CPS issue.
The CPS can read the radio without any problems. I modify the codeplug, then click Write, and the software reports "Write Successful".
However, when I immediately perform another Read from the radio, none of my changes are there. It's as if the write operation never actually happened. The radio remains completely unchanged, even though the CPS says the write was successful.
My radio information:
- S/N: 2604HC00220
- Firmware: V219.062
- CPS version reported by the radio: V02.37
I've already tried several CPS versions:
- CPS 2.45
- CPS 2.42
- CPS 2.41
- CPS 1.30
- Even the older MD-380 CPS
The behavior is always the same:
- Read → OK
- Write → OK (success message)
- Read again → none of the changes were actually written to the radio.
Has anyone seen this before? Is this caused by incompatible firmware/CPS, write protection, a cloned firmware, or something specific to the newer MD-UV390 Plus hardware?
Any help would be greatly appreciated.