The calibration of the sensor needs some defined action or movement:
1) for gyro, the device should be put in still for few seconds to achieve level 3. 0x60 in your senario is only level 2 which is not fully calibrated
2) for mag, the calibration will only achieve to 3 when the device moved over certain degrees over air.
3) system calibration will goes to 3 when both gyro and mag calibration level goes to 3
4) for accel, the sensor will be calibrated when all axis go through positive and negative position. this takes a bit longer time so system calibration is not rely on it.
