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BQ34Z100: BQ34Z100 current calibration is inaccurate

Part Number: BQ34Z100
Other Parts Discussed in Thread: BQSTUDIO, EV2400

Hi team,

I have to do a current calibration for my BMS which is dealing with a 240-260V system. I am calibrating the gauge at around 1.5A to 2A. Even after re-flashing with the gg file and increasing current value through the battery pack, the current reading on BQStudio is off by the actual current by a large margin as visible in the gauge on BQStudio, in the screenshots.

Kindly tell me if I can do something on the calibration end to get correct current values. 

Here is the golden image file which i am using for my battery pack.

https://drive.google.com/file/d/12B4L_Tub4aL9kkkFCp65bCrgQhNIunF0/view?usp=drive_link