I wonder… I have battery autonomy problems with my LG… the battery don’t charge at full capacity or the phone is having problems while communicating with the battery… the charge indicated can fluctuate a lot but in all case, it seems that batteries have like 25-30% of the capacity they are supposed to have (I tried 3 batteries and they all have the same problem).

Could it be this charging port that is faulty ? Or the motherboard ?