Battery Draining fast all of the sudden for Xperia ZL

[Archangel_Sam]

Dear Sony,

I have recently brought a Sony Xperia ZL,upon using about 2 weeks,i found out that the battery drain of my phone usually 3 to 8% have increase to about 30% all of the sudden and the battery drain fast even i turn stamina mode on and all those GPRS,data networking and screen off,what is happening?kindly answer me please,thank you!

[Surgical]

So I just received my Xperia ZL yesterday and I am already having problems. The battery life is just awful, it went down from 100% to 15% just in stand by and by using the camera a little bit (with stamina mode on) in just 5 hours! I had nothing running, when I look in the processes, Mediaserver uses 54% of the battery, what is that? Everything else seems to be using just 5-10%.

I also noticed that stamina mode does not work, it shows 1 day and 14 hours of stand by time both on stamina mode and when it is off. What could be possibly causing this issue? I currently have version 4.2.2

Thanks in advance

[_alexdon_]

Stamina mode will work if you do this:settings-apps-all-eco mode controller,force stop and clear data,force restart the phone(power button+vol up until the phone vibrates).

[fasda]

SIr,
I bought zl two weaks ago,then i update it into 4.3
1 weak it was normally. Then my zl baytery drain too fast, i must charge it 3 times a day
Please help sir, i cant enjoy it..

[_alexdon_]

Download sony update service and attempt a repair.Backup your data because it will erase phone memory.