Charging problem(seems like battery is too drained)

[sunderpants]

I have this phone for about 2/3 months no complaints awesome phone..
But now I have a very big problem it looks like it is stuck in a loop of some sort
Yesterday before a go to bed I saw that it had like 12 % of battery I didint plug it to charge 
Anyways I woke up today and the phone was dead so I plugged it to the wall charger then soft red light came on 
and I thought it was charging but after a while the red light went away the screen came on and showed "SONY'
then a picture of a drained battery and then switched off .. I left it again and it did the same thing over and over for about 
an hour .. Then I tried to power it on and nothing after a while it did eventually power on but came to the pin request said that my battery has 0% and turned off again and it does the same thing over and over again..

My guess is that the battery is too drained but don't know a solution 
.. Also I tried everything with the PC software the repair and stuff and still nothing ..

Sorry for the long speech but in my country the service that is supposed to repair the phone is on a holiday and doesn't work until 5th of Jan.. And I need my phone ..

Any help will be much appreciated.. 

[sunderpants · Accepted solution]

Nevermind i managed to fix it on my own. Turns out i was right the problem was that the battery didnt charge coz it was too drained  so I
fixed it by letting it get to the sony screen and then reset with the back button and unplug the charger /
Then plug the charger back let it again get to the sony screen and then reset again . And after 9/10 attempts it showed a green light rather than red .. Then i did the same thing twice and it somehow started charging and booted to android 
Seems silly i know but works ..
Anyways if anyone else has this problem just do the same after a while it will work..

[robevave]

Hi, I've got the same charging problem, but your suggested re-re-re-re-restart options doesn't work with mine. My Experia SP is about 3 months old and still running Android 4.1. Tried several things including different (proper) cables and adapters. It's impossible to remove the battery, so I'm done with it and be ready for sending it back for service repair. 

[zagna2]

I had the same problem but

Mine had 55% after i bypassed the restart loop and then i charged it and when it show 88% i started it.

Then i called a friend and again the phone turned off by it self in the middle of the conversation . After that i turned it again on and the battery showed 33% of battery ONLY! Actually a about 55% drop in 5 minutes....

Now i booted with safe mode and i charging it .... lets see what happen....

**bleep** you SP you continue to surprise me....

[sp_ers]

"Battery depleted" that's the most dangers condition for battery, be sure to shut down the phone when critical level achieved. Some time low battery protection doesn't work because of miss calculation on remaining juice due to charging habits. To make sure accurate calculation try to recharge at 10% until full once in 2 week. For daily always charge above 20% up to 90% dont push to 100% it will good for the battery, thats why the led green at 90%.

[_alexdon_]

Indeed,Li-Ion shouldn't be left to discharge completely,they must be connected to charger somewhere around 10-15%.And charging often is recommended to extend their life.

[zagna2]

The phone has gone mad the last 24 hours . It rebooting itself again and again without stopping even i press the off button it starts again.

I'm scared because this procedure is going on for the last 3 hours and the phone has overheated, i think its over 50 degrees i almost cannot touch it in my hands a lot seconds...

I think it will blow off the battery. I rushed to the OFFICIAL sony center in my country to have it repaired or get a new one.

For any feedback or the solution i will post here.

[Musarch]

Did you use the reset button behind the back cover?

[zagna2]

I said that. I pressed the OFF button behind the phone but nothing . The phone turned off but then started itself again. I couldn't switch it off..!!!????

[Musarch]

strange problem! 

maybe it has been infected with some viruses? or did you install any new app?

did you connect it to pc?