Navimow X4 error code 8101 means the camera sensor is not calibrated. Learn why there is no DIY calibration and what support needs from you.
Error 7102 on a Navimow i2 AWD is a wheel encoder data error. Try the correct reset sequence and know when the mower needs support.
Navimow X4 error code 2105 means the battery is too hot. Follow the safe cooling and reset steps, plus learn when to contact support.