I designed & assembled 3 copies of a circuit (BNO055 motion sensor board, used recommended i2c application from the datasheet).
1st one had some soldering issues, fixed them and it worked, received sensor data. 2nd one worked with no issues. 3rd is the culprit.
When I power the board everything looks fine, the ON led lights up, no smoke, no noise of any kind. The power supply shows 2mA current. But no data comes from the sensor.
Somewhere around 15th second the current starts to increase slowly. Around 20th second current reaches 10mA, after that within seconds the current reaches to 50mA and I cut the power, to protect the circuit.
I checked all the solder points, connector pins, etc. No bad solder, no short.
I connected the power again, same thing happened.
I wonder what would cause this behavior and how can I troubleshoot this problem.
I attached the schema & picture of the board