NV+ ERR BAD FIRMWARE

So I have an NV+ (RND4425v1) that is reporting ERR BAD FIRMWARE.  This occurred after my home lost power.  I'm not sure why it didn't shutdown on its own as I have it monitoring my UPS.  The good news is I have a second RND104 that I backup to weekly.  The problem is the backup occurs Sunday nights and I recently added some critical files to it this week that didn't get backed up.

After the power outage it was able to boot if I used the skip check boot method.  But the first time I'd try to copy a file off it, it would hang up the system and I'd be forced to reboot.  Now I can't even get that far.  Just bad firmware message.

I've tried doing the OS Reinstall but although it appears succesful, upon reboot I still get the same firmware error.  I've ran a memory test that passes just fine.  I've tested each disk in my PC indiviually and they pass with no error.  I've tried booting removing 1 disk each time thinking a disk was still causing the issue.   I even put the 4 disks into another NV+ chassis but get the same error.  I'm desperately trying not to do a factory reset.  The other chassis was acting wonky when I replaced it so I'm not convinced that was a fair test.  

Is it possible to put the 4 disks into my RND104 running OS6?  Or are they not compatible? 

Open for any suggestions.

Thanks!