topic Re: Bluetooth power consumption in XPERIA archive

Bluetooth power consumption

FredXZ — Mon, 07 Nov 2016 22:09:41 GMT

I've noticed when I enable Bluetooth, it will use up approx. 30% of my battery in a day even when I don't connect to anything. Is this normal?

Re: Bluetooth power consumption

Uliwooly — Mon, 07 Nov 2016 23:11:35 GMT

do you experience the same in >>> safe mode

Re: Bluetooth power consumption

FelixSHH — Fri, 11 Nov 2016 09:06:34 GMT

Hello,

yes, I have the same!!! It´s eating away battery!!! Approx 50mAh an hour! Thats 10-12 times what WiFi

does!

Must be an software bug, I installed firmware, switched on/off, took out SIM card, restarted...

NOTHING helped. After one week I got another XZ and again...

Re: Bluetooth power consumption

FredXZ — Tue, 15 Nov 2016 01:29:50 GMT

Looking at the statistics, I found that Bluetooth is keeping the phone awake almost the entire time it's running in battery. It is not letting the phone sleep.

Re: Bluetooth power consumption

100rabh — Tue, 15 Nov 2016 12:24:16 GMT

Go to settings > location > expand three dots on top right corner > scanning > turn off if Wifi n Bluetooth scanning is on by default

Re: Bluetooth power consumption

FredXZ — Tue, 15 Nov 2016 14:49:55 GMT

Thanks for the recommendation. I tried that about a week ago, and unfortunately, it had no effect.

Re: Bluetooth power consumption

Christofer — Wed, 16 Nov 2016 14:30:32 GMT

Hi @FredXZ and @FelixSHH, I'm sorry to hear this.

What kind of Bluetooth accessories do you have connected to your devices?

Re: Bluetooth power consumption

FelixSHH — Wed, 16 Nov 2016 15:04:51 GMT

Hi Fred,

I use hands-free phonecalls for my car (from ZENEC) and a pulse-device (sports) from Polar.

Right now I have thr 3rd XZ and (knock on wood) it´s fine but I don´t know why...

I have the feeling that Bluetooth, once activated trough any device, is not returning to some

kind of sleep / energy saving mode.

Re: Bluetooth power consumption

Christofer — Wed, 16 Nov 2016 15:41:42 GMT

@FelixSHH Sounds good so far. If you should happen to experience this again, could you take a bug report and send it to me? I could then forward it internally for investigation.

To do this:

Go to Settings > About phone > Build number, tap 7 times on the build number.
Go back and select Developer options then turn on "USB debugging".
Select Logger buffer size and change it to "4 MB"
Restart your phone, charge it to 100% then use it until the battery is down to 20% or so.
Go back to Settings > Developer options, select "Take bug report".

When the report is ready you will receive a notification. Tap the notification to share it. I suggest you upload it to Google Drive and then choose to share a public link to the upload and include the link in the PM.

@FredXZ If you still experience this you're welcome to send me a bug report as well.

Re: Bluetooth power consumption

FelixSHH — Wed, 16 Nov 2016 15:59:58 GMT

Hello Christofer,

ok, I will do so but (please don´t get this wrong :smileysmileywink:)

I hope I won´t have to write you again...

With best regards

Felix

Re: Bluetooth power consumption

FredXZ — Wed, 16 Nov 2016 16:57:38 GMT

Thanks Felix.

Just so I'm clear, you had to return your phone 2 times before you got one that didn't exhibit this problem?

Thx, Fred

Re: Bluetooth power consumption

Christofer — Thu, 17 Nov 2016 15:51:58 GMT

@FelixSHH Don't worry, I agree. :smileysmileythumbsup:

Re: Bluetooth power consumption

FelixSHH — Fri, 18 Nov 2016 20:41:17 GMT

Hello Christofer,

I have the bug report, yesterday evening my phone got mad again. How can I send you it to you? I have up?oaded it as you suggested or do you have an email where I can send it?

With best regards

Felix

Re: Bluetooth power consumption

FelixSHH — Fri, 18 Nov 2016 20:43:28 GMT

Hi Fred,

yes, I had 3 XZ in 3 weeks but all 3 had the same issue after a few days...

Re: Bluetooth power consumption

Christofer — Mon, 21 Nov 2016 15:21:21 GMT

@FelixSHH If possible I'd appreciate if you could upload it to Google Drive, then share a public link and send me the link in a PM here on the forum. To send me a PM, just click my name here and you will have the option to send a private message to right on my profile.