.314 batery issue

[azzido]

Hello,
I am on newest firmware available for Z2 which is: 17.1.2.A.0.314 and I noticed that battery drains a lot faster now. It is like it lasts about a day when before it was about two days. I did not install any additional software during this time, usage of the phone is the same as well.

Did anyone else encounter the same issue?
I do not know what happened with battery of my Z2 after update

[srv1]

I don't have any problem with latest update .314 and battery. If this problem will persist for you maybe hard reset can help. Don't forget to make a backup first.

[RuneJ]

Same here.

Drastically reduced the time on battery after upgrade to the latest firmware. 

On mine it did not help to do a hard reset/factory default/software repair either.

Please check the Settings-Power Management-Battery Usage to display what is using the most of the battery?

From what I have read on other Android-forums, the problem seems to be with the Android release/known defects and that different apps triggers these defects making the central app use the cpu all the time.

[dm841]

everytime you get a new firmware update , you need t minimise the use of the battery so it settles down with the new firmware takes about a day or 2 .

[RuneJ]

That did not happen with my phone.

No change after several days, battery-drain by app Android System that were kept awake constantly.

[HussainQuadri]

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@azzido wrote:
Hello,
I am on newest firmware available for Z2 which is: 17.1.2.A.0.314 and I noticed that battery drains a lot faster now. It is like it lasts about a day when before it was about two days. I did not install any additional software during this time, usage of the phone is the same as well.

Did anyone else encounter the same issue?
I do not know what happened with battery of my Z2 after update

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It usually happens during the slight miscalibration of the battery when installing the update. Just make sure that the next time you update, the battery is at a solid 100% before installing it.

I found a method for my HTC One M7 but I'm not sure if it will work with the Xperia Z2 (Green LED turns on at 90% whereas Green LED Turns on at 100% on the M7).

1- Charge phone (while it's on) to 100%.

2- As Soon as the battery level reaches 100%, unplug charger and reboot phone.

3- Repeat Step 1.

4- Unplug the charger after reaching 100% and turn off the phone.

5- Without turning the phone back on, plug the charger and wait for the battery to charge to 1005.

6- Then unplug charger, and turn on phone.

7- Repeat Step 1, then unplug.

That should properly recalibrate your battery.

[azzido]

I will give a try to charge it to 100% and then reflash the software