Last Thursday my phone threw up an 'invalid SIM' error, it tends to do this every now and then and can usually be cured with a reset. On this occasion I reset it 5 times in a row and in the end carried out a soft reset, which cured the problem. It was after this that the battery troubles began.
I noticed later in the day that my battery had discharged really quickly, down to 20% after 4 hours of no use at all. I turned it off and on again and the meter jumped to about 85%. Another 3 hours pass and it had dropped to 35% so I plugged it in. An hour later I checked the phone and the battery was showing 20% despite having been on AC for an hour. I turned it off and on again and the power jumped to 80%.
I carried out a soft reset before bed that night and left it charging. The next day the same thing happened with the battery showing massive discharge really quickly. At one stage it turned itself off, I turned it back on and the battery was back to 50%. At the end of the day it turned itself off again with the battery showing 20%, I tried to turn it back on this time but the phone was unresponsive, when I plugged it in to the AC I got a battery symbol with a question mark in it, after a couple of hours it started back up.
Saturday I bit the bullet and carried out a hard reset (allowing me to overcome the developer update issue and get to cyan) hoping this would cure the issue. Still nothing. The phone discharges quickly and the meter shows no increase in battery even when left charging regardless of resets.
2 questions - is there anything else I can try and is it safe to leave it plugged in on AC if the battery meter isn't increasing (i.e. will the phone overcharge the battery if it thinks it isn't full?)?
I noticed later in the day that my battery had discharged really quickly, down to 20% after 4 hours of no use at all. I turned it off and on again and the meter jumped to about 85%. Another 3 hours pass and it had dropped to 35% so I plugged it in. An hour later I checked the phone and the battery was showing 20% despite having been on AC for an hour. I turned it off and on again and the power jumped to 80%.
I carried out a soft reset before bed that night and left it charging. The next day the same thing happened with the battery showing massive discharge really quickly. At one stage it turned itself off, I turned it back on and the battery was back to 50%. At the end of the day it turned itself off again with the battery showing 20%, I tried to turn it back on this time but the phone was unresponsive, when I plugged it in to the AC I got a battery symbol with a question mark in it, after a couple of hours it started back up.
Saturday I bit the bullet and carried out a hard reset (allowing me to overcome the developer update issue and get to cyan) hoping this would cure the issue. Still nothing. The phone discharges quickly and the meter shows no increase in battery even when left charging regardless of resets.
2 questions - is there anything else I can try and is it safe to leave it plugged in on AC if the battery meter isn't increasing (i.e. will the phone overcharge the battery if it thinks it isn't full?)?