BQ78350: Firmware Update Issues: Calibration, Discharge Fet, OC, COV

You can read the calibration data from the gauge before you change the FW version and then program this after the change. 

It is not normal what you observe with the OC and COV triggers and the DSG FET behavior. Please make sure that you programmed the gauge with the correct configuration.

Recalibrating the bms appears to have resolved the OC and COV triggers.  I figured out the charge current issue as well.  The charge current is the target current in the advanced charge algorithm based on the ambient temperature rather than an actually reading of the active charging current.  Unfortunately I cannot manually input the CC gain.  The proper reading is ~.5 mohm but bq studio will not accept a value below 1.0 mohm, but if I attach a load and use the calibration tool it will calculate and write the correct .5 mohm value and the bms current reading is matching my charger and discharger current readings.  I can manually write values below 1.0 mohm for the capacity gain.  after reflashing the parameter file the DSG CHG Fets appear to be acting normally so it possible my initial import from the config file didn't write all the parameters correctly.

I have a data flash file with calibration data but when I import that and write it to the chip it will not write the first ~ half of the calibration data (see table below) and I have to enter it by hand accept for CC Gain which will not accept a value below 1.0.  Is there a work around for that?  I need to upgrade the FW for many chips and would not like to have to manually type all that calibration data in for each chip.