Battery drain after update 47.1.A.12.270

[ElisaK]

I bought my Xperia XZ1 Compact nearly five months ago, in early April. It worked fine for several months with minimal battery drain, but the drain has gotten absolutely atrocious after July's update.

I'm not even joking with this. I have done absolutely no changes to any of my settings or apps - I've had the same apps on the phone since April (including downloaded ones). The battery drain was very good for the first three months or so - 100% battery drained in around 1 and a half days.

The past few weeks, however, the drain got progressively worse (24 hours from 100% one day, 13 hours from 100% the next). It got so bad that I did a complete factory reset, and the phone was amazing when I started it up again - the drain showed 7 days, 1 hour from 100%. I let the phone perform the system update and pre-installed app updates while it was charging... after unplugging the phone when those updates were installed? Battery drain showed 12 HOURS from 100%.

It literally just showed that after a factory reset and required updates, without any app usage at all, immediately after unplugging the charger. Right now it's been 1 hour since the factory reset, and this is what it looks like:

The language is Finnish, and the screens read:

Battery level and estimated time: 90%, 11 hours and 50 minutes remaining

Usage after last charge: Phone idle, 2%, 1 hour 3 minutes; Screen, 2%, 53 minutes

Device usage: last full charge, 1 hour 5 minutes ago; screen usage after full charge, 53 minutes

This is with screen brightness dragged all the way to the left (0% brightness). The drain occurs on both Wi-Fi and mobile data. Enabling Safe Mode doesn't help (which means extra apps do not cause it).

Is the battery on this phone supposed to do this after four months, or did the system update screw everything up that badly?

Also, why exactly does my screen show 53 minutes of use when my phone is very clearly idle, with the screen black? I'm still certain an update did this, considering I have done absolutely nothing to my settings since the reset. Which is why, as a customer, I'm expecting a future system update to fix this battery drain issue. If it doesn't happen, I'm going to have to change my phone after four months. I'd wanted an Xperia Compact instead of the bigger phones since my hands are small, and I am NOT going to be happy if this problem forces me to switch to a bigger one that will be difficult to hold. Sony, please just do something about it and actually check your updates. An idle phone literally after a factory reset is NOT supposed to do that, and it is in no way my fault. This is why it is also not my job to fix it through workarounds. As the company making these phones, it's yours.

Honestly, I am so angry right now that I'm driving my family crazy by swearing and chewing up the scenery.

[gethinb]

My problem is not as bad as many other people but I am frustrated that the screen glows continously when the phone is on charge. If charging from a backup battery, which I often have to do, this is a pure waste of the backup battery. This problem is only since the last update . 

Does anyone know whether it is possible to remove this update? 

[TK_Fin]

I turned on protected mode and battery drain is very slowly. So, it might be that one app may be the root cause but which one 

[NunoSEN2]

Hi @gethinb;

Do you mean that the display is always on when phone is charging?

If that is the case did you check if you have daydream on? (check in settings>display>daydream (screen protection in other language).

[gethinb]

Hi 

I couldn't find any referace to "day dream" but I have found a switch in settings for a screen saver called "colours" so have now turned that off so fingers crossed that this will fix the issue. Thanks for your help 

[NunoSEN2]

Yes @gethinb;

Daydream is the English Google name for it, as I said in your language it can have another name like screen protector or screen saver and you have as pre installed the colors or photos option, so probably is what you found, just turn it off and the screen does not turn on while you are charging.

[20july]

safe mode? but there are not my apps...so it's useless

[20july]

no wifi and only 3g datawifi and 3g dataI

[alexhdkn1]

This seems good or am I wrong?

[Martin20]

well me on the other hand, im experiencing battery drain after the 47.1.A.16.20 update.

previous version 47.1.A.12.270 was working perfectly.

[TK_Fin]

I have still drain problem. What I have done I have set phone in safe until battery is drained empty. It helped few days and battery drain came back. Next I tried to fix problem using Xperia Comapnion. It helped few days. Then I took contact Sony Customer support and result was to send phone to service shop. Now  I am waiting when phone is come back and what is explanation. Meanwhile I am using my old Xperia Z1 Compact and it has much better battery life time...  Seriously, I am thinking to change XZ1 Compact to other brand phone. But let's see what is coming