STAMINA MODE problem in xperia sp

[dahiya]

After some time(15 days of purchase)stamina mode does not working on xperia sp

[Uliwooly]

What do you mean Stamina Mode doesn't work? It doesn't allow you to turn it on or off? The estimated time doesn't change? If so, then you probably have excluded apps that will be constantly syncing and/or using your data or wifi connection, thus, defeating the purpose of Stamina Mode

[Uliwooly]

Check this thread

http://talk.sonymobile.com/t5/FAQ/Battery-time-and-enhancement-features/m-p/347874#U347874