i need help to fix my phone

[Hama22]

I have Xperia Ion since 2 years ago and just before yesterday while normally using it it rebooted and when the screen turned on again there was triangle with a screwdriver and a blue loading bar i waited and waited and then there was this yellow one i really dont know what to do and pc companion wont detect it plz help me thanx

[Phy]

You need to repair the phone with Sony PC Companion.
http://support.sonymobile.com/us/tools/pc-companion/

[Phy]

If you still can't get PC Companion to work try contacting Sony Xperia support.
http://support.sonymobile.com/global-en/contactUs/

[Thommo]

Performing a system repair using PC Companion - This will factory reset your phone and erase all data

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)
Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the on screen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP