Xperia ion Jelly Bean Update

[KS]

Hi Friends Have updated my Ion to JB , but notice that the battery % once it falls below 50% it gets to 1% suddenly and shuts down. 

When I plug in the charger it shows again starting from 50%. Any help on this is great. Did a settings reset will check if this helps.

Any help guidance on this would be great

[Uliwooly]

Do you have any battery app or taskiller or task managers? 

Perhaps if you repair the phone once more with SUS or PCC it might solve the problem

[KS]

Hi, 

Yes I have task manager and a battery app, can u suggest me the exact steps to weed out this problem

[Uliwooly · Accepted solution]

either uninstall them > restart your phone

or even better 

Update Service (SUS)

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

http://www-support-downloads.sonymobile.com/Software%20Downloads/Update_Service_Setup-2.11.12.5.exe

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

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

Don't forget the Kudos