topic Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact! in XZ Series

firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Sat, 18 Jul 2020 10:43:35 GMT

A few days ago I got the firmware update 52.1.A.3.49 on my XZ2 Compact. It severely drains the battery! Overnight it looses 35% of charge (from 100 to 65%). Even in Stamina modus it looses 23%. Please help! How can I downgrade?

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Strampke — Sat, 18 Jul 2020 21:33:26 GMT

No, downgrading is not possible.

However you can wait a while untill the system settles.

You can restart your device.

You can test how it is in safe mode.

You can check the support app on your device to find clues.

If you cannote find a way out, then come back and ask.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Fri, 04 Sep 2020 18:17:12 GMT

No, it didn't solve the problem. After latest update the battery is still drained way too fast.

I measured the battery percentage during 14 nights. The phone is not used during the night and no apps are running, I also tested the working of the stamina modus during some nights. Here are my measurements:

date	~from	~to	time	begin %	end %	delta	stamina	%/hour
5-8-2020	21:45	09:15	11:30	90	51	39	n	3,39
6-8-2020	21:45	08:15	10:30	39	0	39	y	3,71
7-8-2020	21:45	08:30	10:45	76	28	48	n	4,47
8-8-2020	21:45	09:10	11:25	44	0	44	n	3,85
11-8-2020	21:50	08:05	10:15	45	0	45	y	4,39
12-8-2020	22:15	08:35	10:20	81	41	40	n	3,87
13-8-2020	22:10	07:15	09:05	93	50	43	y	4,73
14-8-2020	22:20	08:25	10:05	100	56	44	n	4,36
15-8-2020	22:50	07:20	08:30	91	55	36	n	4,24
16-8-2020	22:05	07:20	09:15	80	38	42	y	4,54
17-8-2020	22:30	07:35	09:05	100	62	38	n	4,18
20-8-2020	22:15	07:30	09:15	93	44	49	y	5,30
22-8-2020	22:20	07:40	09:20	100	62	38	y	4,07
23-8-2020	22:00	06:30	08:30	100	63	37	n	4,35

In average the battery looses 4,25 percentage points per hour during the night. So if the battery is 40% in the evening next morning it is empty. This is unacceptable!

Other conclusion: Stamina modus doesn't do anything!

Please do something and improve the firmware.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

RottenFoxBreath — Sat, 05 Sep 2020 07:55:13 GMT

Have you tried a software repair or factory reset?

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Sat, 05 Sep 2020 11:22:21 GMT

No, I didn't do a factory reset because it takes a lot of effort to restore the accounts in all the apps.

No, I didn't know about the existence of Android software repair tools. Which app does Sony recommand for this problem? Is there an app that investigates the (battery) usage of each of the installed apps and other processes?

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

RottenFoxBreath — Sat, 05 Sep 2020 11:37:06 GMT

Try the support app that's on your phone, or Xperia companion on pc.

Software repair is nearly a factory reset too tho.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Sat, 05 Sep 2020 12:07:43 GMT

In the settings: Battery, battery usage: "battery usage data not available" On other android devices this shows the battery usage per app.

I installed AccuBattery. Maybe that can find a clue.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

CosmicTomato — Mon, 07 Sep 2020 08:36:51 GMT

Yo Dre, check this out, there's an article of the software repair step, give it a shot after the factory reset if the battery kept draining.

https://www.sony.co.uk/electronics/support/mobile-phones-tablets-mobile-phones/articles/SX604601

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Fahadhabib — Sun, 27 Sep 2020 09:23:04 GMT

Agreed

Mine drop from 100% to 40%overnight (5 hours) in airplane mode... Scary

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Fri, 23 Oct 2020 10:18:57 GMT

Yes, I performed the 'software repair' using Xperia Companion. (Reinstalled apps using the Google backup but still it took me a working day to setup all the apps again. Lost Whatsapp messages from January till now.)

It didn't help at all!! Still loosing about 3,8 %points per hour.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

CosmicTomato — Fri, 23 Oct 2020 11:06:43 GMT

Ouchh! sorry for the data loss mate, this could be the chemical age of the battery has reached it's finale. you might need to get it checked out, if its still got a guarantee.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Fri, 23 Oct 2020 12:56:17 GMT

No, battery health is not the problem. I installed "AccuBattery" app, and according its health is still 98%. The problem started right after the firmware update. I am doing some experiments with data usage reduction. I'll let you know in a few days.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

RottenFoxBreath — Fri, 23 Oct 2020 14:58:07 GMT

I know it doesn't compensate for you losing data, but Whatsapp has a backup/restore function, so in future you won't lose messages.

And as for re-installing apps from your backup, you've just stuck your phone back the way it was..

Did you run it with nothing or limited apps for a day or so?

A factory reset and limiting the installed apps as you go would be the better option.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Tue, 10 Nov 2020 14:09:09 GMT

I know Whatsapp makes a backup daily bit it lost about half a year; before February all back, after January none. I don't know why.

Yes Play apps came back after the reset but not their data, like login and settings.

Re: firmware update 52.1.A.3.49 drains the battery of XZ2 Compact!

Dre-64 — Tue, 10 Nov 2020 14:46:05 GMT

I did 14 more tests to find out where the root of the cause must be found.

#	date	~from	~to	time	begin %	end %	delta	test	%/hour
1	16-10-2020	22:30	08:00	09:30	96	65	31	after 'repair'	3,3
2	17-10-2020	22:30	08:30	10:00	100	62	38	repeat	3,8
3	18-10-2020	22:00	08:00	10:00	100	62	38	repeat	3,8
4	19-10-2020	22:00	07:30	09:30	100	99	1	airplane modus	0,1
5	20-10-2020	22:00	07:30	09:30	96	58	38	Wifi, Bt, Data off	4,0
6	21-10-2020	22:00	09:00	11:00	88	85	3	SIM 2 off	0,3
7	22-10-2020	22:00	08:30	10:30	100	97	3	SIM 2 off (repeat)	0,3
8	23-10-2020	22:30	08:00	09:30	82	40	42	SIM2 data off	4,4
9	24-10-2020	22:30	09:00	10:30	100	77	23	SIM 1 off	2,2
10	25-10-2020	22:30	07:00	08:30	100	68	32	SIM2 4G off	3,8
11	26-10-2020	21:45	07:00	09:15	100	97	3	SIM 2 off, SIM data on	0,3
12	27-10-2020	22:30	07:00	08:30	96	59	37	SIM 1 ↔ SIM 2	4,4
13	28-10-2020	22:10	07:00	08:50	100	97	3	SIM1' off	0,3
14	29-10-2020	22:00	12:00	14:00	97	44	53	both data on	3,8

So, in air-plane modus the Xperia hardly uses energy. (test #4) Communication causes power consumption. But switching data off doesn't help at all (#5)

Note: I have two sim cards: SIM1 with a data bundle of 1GB/month and SIM2 has that phone number (data off, but still $$ possible)

If I switch off the whole sim card with the data (#6) than the Xperia is very economical with power! In house with wifi it is no problem without the data sim.

To check the sims I swapped them in the slots without effect (#13). Switching 4G off, only 2G/3G, doesn't help (#10).

Concluding: Using a second sim card for data drains the battery.