Stamina mode doesn't work

[Namoor]

Stamina mode doesn't work aparently on my phone. I try all the configurations but the sotware doesn't turn off the wifi and neither the mobile data coming from the operator when i block and turn off the screen of the device. I continue receiving information from all the apps and i haven't done any exception on the stamina configuration. Any idea to solve this?

I try this Solutions Without  benefit :

Go to settings
Apps->all->eco mode controller
And clear cache and data.. Click fore stop and restart your phone.. This should work

Download sony pc suite and try repairing your mobile.

Please Help.

[_alexdon_]

I suggest you to first disable stamina,after that do the force stop process and clear data,restart your device and enable stamina back. Charge the device to 100%.

Have you also tried a software repair?

[BeadyEye]

I've noticed the same thing. I gain absolutely no battery life by enabling stamina mode. In fact I was forced to turn stamina mode off because it was causing wifi drops. That's when I realized that it makes zero difference on my battery life. I've repaired via pcc, I've flashed an ftf file directly, nothing works. I just leave it disabled in hopes that Sony fixes this with lollipop.