Power Profile Kit PPK2 current not correct.

Hello,

i have one PPK2. Recently i find the current reading from PPK2 is relatively large compared with actual current value.

For example, actual current value vs PPK2 value:
4uA vs 35uA
3mA vs 6mA
300mA vs 500uA


So is the PPK already broken or defective?s

Is there any way i can work around like PPK2 calibration to fix the PPK2?

Or something like the current sensing resistors are broken and i can check and replace to get a good PPK2 back?


Thanks