The above message popped up in the battery applet out of the blue.
Running CSSU-thumb2, BME replacement and using the pali-recommended "modprobe -r rx51_battery".
Charging to green LED and/or rebooting does not fix it. Modprobe rx51_battery gives some numbers, but they are the wrong numbers.
Trying to recalibrate the battery with the bq27x00_battery module gives a "resource or device busy", without it the calibration script gives a read error on one of the cat commands.

Is there any way, short of reflashing, to just get this to work again?

Thanks in advance!