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Xperia X gets very hot when use mobile data

asked 2017-11-07 22:47:55 +0300

liqquid gravatar image

updated 2017-11-07 22:48:35 +0300

I don't really often use mobile data connection.

I noticed today when I was using mobile data connection and was browsing with stock browser the phone has become very hot. There was a case when the phone was hot over wifi when I used the browser. In these cases the battery drain was really fast, I mean I could have discharge the battery in 1-1.5 hour I reckon.

These are problems, but the even bigger problem is after I put my phone in my pocket it still heated up itself without usage. I closed all the apps but it was still hot, didn't stop. I restarted the phone then I waited, and when it connected to mobile data it started to heat up again. I thought something android app running in the background so I disabled the a.dalvik. But when it connected to mobile data it heated up again...

I am trying now but it is ok now, I don't know why, but the battery is on 10% and the phone is in energy saving mode so maybe that is why. I charged up the phone last night, and there was only about 1 hour active phone usage today.

I will try to test this when I can, what could be the reason, but shouldn't be usage or app reason of this, so I think this is a bug. I am using Sailfish X 2.1.3.7 .

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I experienced it with Jolla C. are you in 3g this time?

Dreej ( 2017-11-08 00:10:51 +0300 )edit
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I have seen 4G that time.

liqquid ( 2017-11-08 00:14:21 +0300 )edit

I listen internet radio with SailWave at work. Phone gets, not hot, but warm and eats up battery about 10% per hour. Phone is on 3G. Average cpu load is about the same as when phone is idle. Don't know if this is normal but that's the way my phone behaves. I got Sailfish X 2.1.3.5 . I might listen mp3's only for a day for comparison.

kaappikello ( 2017-11-08 19:42:45 +0300 )edit

I listened music today with quasarmx (offline, just mp3s) , the phone temperature was ok but when I turned the mobile data on the phone started to get hot not burning hot but I felt in my that heated ip my pocket... I checked the processes that time and there was nothing wit high cpu usage, qauasarmx was around 1% . Sometimes lipstick came up with 10% battery usage for 1-1 sec. Battery drain was also higher with data connection without using internet on phone that time actually. The data connection shouldn't heat ip the phone withoud heavy usage.

liqquid ( 2017-11-09 15:43:48 +0300 )edit

I listened for an hour and a half mp3's with Media app. Phone was cool, no excessive battery drain and no extra cpu usage. Maybe the signal strength is weak and the phone uses high transmitting power or there's something wrong with the phone and it uses high transmitting power regardless the signal strength. I don't know how to check signal strength with sailfish or if it's even possible. That might be reason for heating since it's not the cpu.

kaappikello ( 2017-11-09 21:28:27 +0300 )edit

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answered 2017-11-08 01:38:53 +0300

Spark gravatar image

updated 2017-11-08 01:40:00 +0300

Maybe an old thread helps: https://together.jolla.com/question/46747/1071618-battery-drain-and-heating-up-after-update-7/ or try searching for "battery drain", there's a couple of threads here.

In any case you should check the CPU usage and processes with a monitoring tool like Crest or Lighthouse (found in warehouse I suppose).

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Lighthouse is avaible at Jolla app store.

Mikko Suniala ( 2017-11-08 12:53:19 +0300 )edit

I know these just I haven't had time to check it that time but I will do when I notice this issue next time. I used the phone today but I haven't noticed too much heating... seems like random problem.

Anyone experienced similar issue with certain process/app just let me know please.

liqquid ( 2017-11-09 01:07:50 +0300 )edit
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Asked: 2017-11-07 22:47:55 +0300

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Last updated: Nov 08 '17