Xperia U just stoped working and now will only flash SONY then XPERIA until the battery is dead.

[N1C]

My Xperia U, just stoped working and now it won't switch on. The only thing it will do is dissplay on the screen just the words SONY then XPERIA and just keep repeating it until the battery is dead...........Its gonna have a sudden violent meeting with Mr Wall !!!

[Uliwooly]

Charge your phone for 1 hour then repair it with SUS

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[N1C]

Ive tried this but after downloading the SUS link my phone is NOT an option !!

[Uliwooly]

Do you have windows 8 or 8.1?

[N1C]

Windows 8

[Uliwooly]

To solve the issue, open Device Manager on your computer to reinstall the driver for your device while your device is connected with your PC via a USB cable.

Microsoft Windows Vista and 7 users

To open Device manager on your computer

Click on the Start button. 
In the Search box, type device manager, and then press enter. You should see something similar to the below example.

Microsoft Windows 8 users

Method 1

To open Device manager on your computer

Click Windows Key + X to open the Start Menu. 
Select Device Manager from the Start Menu.

Method 2

To open Device manager on your computer

Click the Desktop Tile to open the Desktop. 
Click >> at the bottom right of the taskbar. 
Select Control Panel from the Menu. 
Select Device Manager from the list of control panel items.
Note: If you do not see the screen with the Device Manager option, click the View by drop-down menu and select Small icons.

Microsoft Windows XP and 2000 users

To open Device manager on your computer

On the desktop, right-click on My Computer and click Properties. 
In the System Properties window, click the Hardware tab. 
In the Hardware, tab click the Device Manager button.

To reinstall the drivers for your device

Scroll down to the Universal Serial Bus controllers (USB section) of the Device Manager window. 
Look for an MTP Device: Media Device, Unknown Device or any other reference to your phone. Click on this entry and choose "Uninstall" whilst leaving the device connected. 
Wait a few minutes, and the computer will reinstall the drivers for the device.
Now, the phone is accessible via Computer/My Computer on your computer.

[N1C]

cant do this as the connection from phone to computer will not establish. its as if the phone is starting and switching off straight away and cant reboot. It can't switch on and it can't switch off !!!! its gonna meet the wall with swift violence !

[Uliwooly · Accepted solution]

That could be a hardware issue, stop by your local Sony

http://www.sonymobile.com/global-en/support/contact-us/

[N1C]

ok, cheers. Thanks for your time.

[Uliwooly]

Anytime