apco25
Batlabs OG
The CS7000 issue is most likely tied to firmware incompatibility.
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M7300 Lost MRU, need recovery assistance
- Thread starter ElroyJetson
- Start date
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apco25
Batlabs OG
None of my personal M7300s or XG100M have ever experienced this issue, however customer M7300's have stretching back to at least 2011.
We have several thousand XG100M/CS7000s and we do see this error from time to time. No rhyme or reason. Sometimes, it'll be a failure during a firmware upgrade, other times, it will just randomly display LOST MRU. Sometimes, they will go off frequency, especially after a thunderstorm or a power surge. Radio will go into CC SCAN. Stick it on a service monitor and it'll be off 3 kHz. Once they are aligned, CC SCAN goes away. They are a finicky radio to say the least.
Got to play the XL-200M the other day. Hopefully, they don't have the same bugs as the older series.
Got to play the XL-200M the other day. Hopefully, they don't have the same bugs as the older series.
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apco25
Batlabs OG
Never realized it, even after all the years of seeing your profile on Batlbs, but I ended up in your neck of NC in 2016 to 2017. Small world. 
I consider the M7300 platform to be a good radio when it works but the fragility of its controller system simply screams BAD ENGINEERING to high heaven. I'm no computer system architect but if I were to lay down a set of fundamental specifications, the basic communications path would be required to be maintained intact even if all the radio firmware was completely blanked or corrupted with random noise. No matter what, if the CPU was alive and there was a usable EEPROM still connected, it could be recovered.
I'm asking again if someone has the actual procedure for a recovery attempt. The order of operations.
First I'll see if I can hyperterminal into the RS232 port. If I establish a connection, then I suspect it can be recovered. At this point I'll need the recovery procedure in the correct sequence.
I may need to get my hands on some firmware files.
I'm asking again if someone has the actual procedure for a recovery attempt. The order of operations.
First I'll see if I can hyperterminal into the RS232 port. If I establish a connection, then I suspect it can be recovered. At this point I'll need the recovery procedure in the correct sequence.
I may need to get my hands on some firmware files.
apco25
Batlabs OG
I think you'll be surprised to find that they're actually infinitely recoverable via hyperterminal. PM me if you need help.
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