Corrupted SD card?
I was able to back up /rigol /config /data /dev /sbin using adb.
I tried to 'adb pull /rigol/data/*' <- this is bad syntax and did not work, maybe damaged something
Wifi, keyboard, mouse are working.
I did not backup the SD.
Win-n gives this message.
"Damaged Storage, Storage damaged. You may have to reformat it."
Scope otherwise is functional.
Sometime during all of this I upgraded the firmware to 1.01. Didn't notice any problems until I figured out the "win-n" thing.