xperia s battery issue

[#1]

hi i have a sony xperia S lt26i,

i have an anoying battery issue! my battery is finish about 5-6 hours when its fully charged. I ask in sony but they said that they cant help about the sony mobile phones. Then i went to Turkcell shop and they said that i have to install the system again. But i dont know how to do it. If you can help me i wiil be so happy...

[Nabeel · Accepted solution]

Thread has been moved to correct community by me, you will get more helpfull answers over here

This is how to reinstall your phone's software

Backup everything as it will erase all data on phone (sms, contacts,apps)

Update/Repair your phone via PCC OR SUS

PCC (PC COMPANION) – Repair your software with this .First do the setup without connecting your mobile to pc.(only connect when you are asked to).

Do it as follow >> PCC > SUPPORT ZONE> SOFTWARE UPDATE> REPAIR SOFTWARE (written with blue)  

PC Companion http://www.sonymobile.com/global-en/tools/pc-companion/

SUS ( Sony Update Service)  ... download and install it on pc and follow the on-screen instructions http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe

                  or

http://www.sonymobile.com/global-en/tools/update-service/

Both the links are same