Xperia U doesn't turn on, help please?

[Jagjit]

Hi there, I was just using my phone and when I tryed going into Whatsapp an error message came up telling me that the app has had to close down, i tried accessing it again to no avail with the same messege popping up, I killed the app but it still would not let me into the app so I thought I would restart the phone. I did the normal procedure of holding the power button and selecting it to turn off.

This is where im having my problem as I try and turn it on the Sony icon appears and then the Xperia one but then it goes striaght back to the Sony logo. I've tried connecting it to Sony Bridge but it won't connect (note that the xperia has always had trouble connecting to the software as I am using a Mac and when it does it does take time)

Help would be very much appreciated.

[shihstouch]

I cannot power on my phone

• It might be that the battery is drained. If the battery is completely discharged, the phone needs to charge for a while before the battery status light is lit. Charge the battery for at least 30 minutes, and then turn on the phone.

  To turn on the phone

  1. Press and hold down the power key on the right side of the phone until the phone vibrates.
  2. Wait a while for the phone to start.

  Also Try Restart

  Restart your phone to turn off all running applications and to remove memory blocks. Remove and reinsert the battery and the SIM card. Then restart your phone.

[Jagjit]

The battery doesn't seem to be the issue, it was at 60% when I turned it off. And through the battery bar you can see when the phone is off it is still at around that level. taking out the battery and sim has not helped.

[shihstouch · Accepted solution]

Did you try Restart

Repair / Update Service

Update your phone for optimum performance and get the latest enhancements. Regardless of whether you have the latest software, it’s a good routine to run the Update Service to improve software stability. Also, if you experience problems with your phone this may be solved by a software update.

http://www.sonymobile.com/gb/tools/update-service/

[shihstouch · Accepted solution]

Repair / Update Service

Update your phone for optimum performance and get the latest enhancements. Regardless of whether you have the latest software, it’s a good routine to run the Update Service to improve software stability. Also, if you experience problems with your phone this may be solved by a software update.

http://www.sonymobile.com/gb/tools/update-service/

[Jagjit]

It worked! thank you! i lost everything on my phone but it works which is the main thing, good thing I had a back up of everything!

[shihstouch]

That's Nice To Hear

[Sonja]

How can i do a reset on a phone that doesnt even turn on?

[Sonja]

I did have the problem, that my phone worked last night...i was checking emails and then i got the message that it is loading.....which was already strange as this showed up in the upper left corner with a white screen.....the battery was also pretty low, but i put it on the charger over night, but this morning it is not responding at all...i tried everything i found in the internet.....it will not start, the farest i came was the Sony logo showing on the screen and then it turns off automatically and doesnt restart now all day

[Sonja]

Forgot to say that the little red light on the right upper corne is out at all it only blinks when i try to start the phone...