Database Users

Phone gets hot during 3G use

When I use my Nike for more than 2 minutes while browsing the web using my 3G connection it gets quite hot on the lower part of the backside (isn't this the area with the cpu/chipset?). Although I have not measured the exact temperature it gets well over 40 degrees celsius on the outside already.
I also notice a lot of battery usage but that might also be because of the screen being on all the time, though the chipset might be sucking away a lot of battery power as well, judging from the heat dissipation.
Is this behaviour normal or should I go and have it checked/repaired?

It's normal. Mine's the same.

I got a new Niki after my old was damaged, none of them gets hot.
As far as I know this could be caused by a wrong Radio Version. Did you flash the Niki with another Radio Version than shipped?
High battery usage could be caused by some tools (e.g. S2U2)

Nope, the phone is running a HTC original WM6.1. The phone isn't even hardspl-unlocked
The windows installation itself is pretty clean: no special tools except total commander, opera and tomtom, of which none are running.
You state that it does not get hot. Does it get warm though, or really nothing special? Are you using GPRS(2G) or UMTS/HSDPA(3/3.5G)?

Yes, I'm using 3G. My phone is only a bit warm when connection to PC and flashing/trying ROMs (> charging & lots of CPU usage)

Mine heats up when using the data connection as well. I've got the standard radio rom.

This is a well known issue in NIKI, don't worry (except if the temperature is too hot); but i have tried many radios and it gets hot when you use HSPDA.

this is because when you connect it to usb it also charges the battery which the connection for the battery and i believe the processor are at the same board. It usually gets hot where the sim is located under the battery. if you use the phone alot to call also it will get hot. i don't think it's an issue i think it does that because of the location of the processor..... Yes i did open my phone

Running a lil hot?

I've noticed it previously during usage (like on the internet while having MSN running, or while playing games)
but I just got off a phone call which lasted about 20 minutes, and the front (and back) of my phone was just too warm for me to ignore. I would have suggested that it was the heat from my cheek against the phone but that wouldn't explain how the phone was quite noticeably warmer than my cheek.
The backlight wasn't on (i doubt the LED backlight would cause much heat anyway).
Does the mega have any internal temperature sensors like PC's have? And any software to read them?
My previous phones NEVER got this hot on even hour long calls,
and mix this with the fact that at my work one of the PDA's blew up a few weeks ago (was the battery), it just makes me that more paranoid!
I am going to Hard Reset soon anyway as things started running a little slowly recently, I hope it will also stop any hidden processes that may be running in the background and overworking the cpu. But I would still like to know of any software

Weznezz said:
I've noticed it previously during usage (like on the internet while having MSN running, or while playing games)
but I just got off a phone call which lasted about 20 minutes, and the front (and back) of my phone was just too warm for me to ignore. I would have suggested that it was the heat ..../QUOTE]
I think its pretty normal to heat up during long conversation. Their manual also says "Using any function for long time will heat up the phone", but only upto a level.
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i've never experienced warming of the phone which is coused by operating it , well maybe just a lil utube watching for an hour but it was warm of my hands , i'm only worried when i leave it charging and after 15-20 mins LOL ! the phone is HOT i know that is normal , just sharing opinion

Heat comes from 2 sources in general external and internal.
External is from sun, your hands or phone in your pocket. On longer run this is not good for battery life.
Using navigation in your car during summer can run your phone real hot and feels quite uncomfortable! From a 20 min call it should not. But this is subjective.
Internal heat is caused when your processor has to work hard; like when several programs running and processes in back ground. You can check and kill them with task manager (FDC soft task manager) and batteryguard. Also soft reset kills most "unwanted" processes. A good indication for high level of processor activity is when your battery level goes quickly down.

Its normal mate, on mine when i use GPS for long time it does the same, processor works hard and battery gets hot.

Not sure if navigation alone causes your battery to run hot. Since navigation can run on 200Mhz processors and Mega processor has much higher clock speed it is overspecified.
The influence of phone close to windscreen and therefor impact of light/sun may be much bigger. When I run navigation (TomTom) in winter phone stays nicely "cool".

Not sure if it could help but once i noticed the Mega too warm and discharging instead of charging, after i connected it to the notebook via usb cable!
Rebooted PC and HTC and everything luckly returned normal...

gfreeman86 said:
Not sure if it could help but once i noticed the Mega too warm and discharging instead of charging, after i connected it to the notebook via usb cable!
Rebooted PC and HTC and everything luckly returned normal...
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Indeed a soft reset in most cases solves this.

T-Mobile Leo Overheating with GPS

I have a serious probleme with my Leo HD2 T-Mobile which I bought from USA; it is overheating and stopping charging after about 10 mn of using GPS (Tomtom, ou IGO) in my car.
Anyone has a solution for this probleme?

That's kind of a short time. I know I can get away with at least 30 minutes or more depending on the temperature outside ( no AC right now) before it will start acting up.
You could try flashing a different radio. Might have to go through a couple before finding a good blend of lower power(less heat) and good reception.

If you have something other than a hard case on your phone take it off , that rubber shell that comes with the HD2 will overheat your phone in record time if using GPS or other heavy apps for extended periods of time ...
Also turn off 3g(you are driving, this will stop it from searching constantly for 3g), help save power and heat, make sure wifi is off ...
I drove 4 hours today using TomTom the whole way, and did not have a heating problem , but don't stick the phone up on TOP of your dash in the direct sun, it will get soo hot you can't touch it, even if it is off, the phone is black and metal collects heat like no body's business ...
Also a good point is to unplug it from the charger once in a while, like a half hour every 2 hours ....
Just some pointers that I use, and mine does not overheat ...

Its a known issue, while using the gps, the phone is working at full cpu speed, and its charging at the same time, If the phone sees fit it will use some of the power coming in and use it to power the phone more so then charge the battery.
I used to come across this problem a bit, using it as a tether most of the day as i am a service tech and use it in place of an actual cellular modem.

Unrooted 6P on Nougat Hot in Pocket, Cool on Desk (Project Fi)

Hi, I've had my Nexus 6P since June now and I've been noticing some issues with battery life and Android N. The weird thing is, the battery is only having troubles when the phone is in my pocket. If I leave my phone on my desk the battery drains very slowly, but while in my pocket the phone gets hot and the battery drains much quicker (e.g. a short 10 minute run to chipotle for lunch left me with 5% lower battery. My phone didn't leave my pocket the entire time).
I'm using Project Fi for service and am in Manhattan, so service isn't an issue. I use the phone with backlight settings at 50% and I don't use the screen more than 30 minutes a day on average. I have location services disabled, I'm on the most recent Android N preview, I use WiFi at work and at home. I have a Pebble Time smartwatch that is connected via Bluetooth to my phone all hours of the day. My phone is Unrooted and has no custom bootloader. I don't have any apps that contribute significantly to my battery drain.
I suspect that my battery issues are from the new and 'improved' Doze feature on Android N.
I don't have a battery breakdown handy (cause I stupidly plugged it in before screenshotting) but the top stat on my battery drain is Android System, with CPU total over 1.5 hours in a given day and Keep awake over 45 minutes at least.
If anyone has experienced similar behavior or might have a clue as to why my battery is dying and how to fix it, please let me know!
Thanks!
- Eric

I turned off the 'ambient display' option in Settings/Display almost immediately upon getting the phone (which I've had for 3 days now!) I found that it would wake the screen and turn off a bunch of times if I was just carrying the phone and not actually interacting with it. I can see that being a big battery drain just for the screen time.
Good luck!

I don't have a solution, but my Nexus 6P has a similar symptom: It gets hot when it's in my pocket at work.
Based on the wifi wakelocks I've seen in Wakelock Detector, I suspect it's trying too hard to stay connected to the wireless network. We have a few access points at work, and it's possible my phone is switching back and forth between the two closest access points. It's also possible that the wifi signal isn't strong enough, so the phone boosts power to the wifi radio.
I'm on Project Fi, and I know the T-Mobile and Sprint signals are both weak at work. I don't know how much energy the phone wastes trying to keep itself registered on the mobile network, but I imagine that could also be related. Even though Project Fi will successfully use wifi to send and receive messages and phone calls, I'm pretty sure it still keeps trying to get a better connection to the mobile network (like every other phone).
It's difficult to judge whether the phone actually does something to cause a higher temperature while it's in my pocket, or if it just dissipates heat better on my desk. My pants are definitely too tight, so I'm sure that doesn't help.

FractalSphere said:
I turned off the 'ambient display' option in Settings/Display almost immediately upon getting the phone (which I've had for 3 days now!) I found that it would wake the screen and turn off a bunch of times if I was just carrying the phone and not actually interacting with it. I can see that being a big battery drain just for the screen time.
Good luck!
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Click to collapse
Hey, thanks for the tip about ambient display. I turned it off and I'll let you know how it goes

This is pretty simple. Phones rely on airflow to remain cool because they have no active cooling. A phone on a desk has airflow. A phone in a pocket doesn't. No airflow means hotter phone. A hot battery drains much faster than a cool battery. That's all it comes down to.

Heisenberg said:
This is pretty simple. Phones rely on airflow to remain cool because they have no active cooling. A phone on a desk has airflow. A phone in a pocket doesn't. No airflow means hotter phone. A hot battery drains much faster than a cool battery. That's all it comes down to.
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Totally not what's going on. When in my pocket, the processor gets really hot, the rest of the phone warms up from my leg heat, but there is a hot-to-the-touch feeling to the top of the screen near the CPU which indicates higher clock speeds on the CPU while supposedly 'idle' in my pocket.

FractalSphere said:
I turned off the 'ambient display' option in Settings/Display almost immediately upon getting the phone (which I've had for 3 days now!) I found that it would wake the screen and turn off a bunch of times if I was just carrying the phone and not actually interacting with it. I can see that being a big battery drain just for the screen time.
Good luck!
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Click to collapse
No luck . Still having serious battery issues in pocket despite turning off ambient display.

ericvolp12 said:
No luck . Still having serious battery issues in pocket despite turning off ambient display.
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Meh, sorry that's not the issue. In settings/battery what is listed as using the most percentage?

FractalSphere said:
Meh, sorry that's not the issue. In settings/battery what is listed as using the most percentage?
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Hey, thanks for the reply. The "Android System" app is currently listed as using 19% of my battery followed by android OS then Chrome.
Android System has a CPU Total of 1 Hr, 30 Minutes, 34 minutes of keep awake and 800 mAh computer power use.
My screen has been on for 13 minutes and is computed as using 42 mAh.
This is all only 6 hours after taking my phone off the charger.
Thanks.

ericvolp12 said:
Hey, thanks for the reply. The "Android System" app is currently listed as using 19% of my battery followed by android OS then Chrome.
Android System has a CPU Total of 1 Hr, 30 Minutes, 34 minutes of keep awake and 800 mAh computer power use.
My screen has been on for 13 minutes and is computed as using 42 mAh.
This is all only 6 hours after taking my phone off the charger.
Thanks.
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Click to collapse
Here are images for reference of my battery usage today: https://goo.gl/photos/2XXCCkonFYMUn2Nx9

ericvolp12 said:
Here are images for reference of my battery usage today: https://goo.gl/photos/2XXCCkonFYMUn2Nx9
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Click to collapse
There's a lot of processes covered under Android System. I would start with location services by switching them to off for at least a day.

Jammol said:
There's a lot of processes covered under Android System. I would start with location services by switching them to off for at least a day.
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Location services have been off since I got the phone. I only turn them on when needed for maps.

Galaxy A5 2017 (A520F) overheating issue

Hi guys and girls,
I've got my A5 a few days back, and at start it worked great. I've messed up with a lot of software, tried everything out, and instead of uninstalling everything I thought it'd be best to do a factory reset. That's where my problems started.
While I set up the phone and installed all the apps (updated) that came with the phone, connected to a 100Mbps optical internet via AC wifi, I lost about 15% of battery. Okay, who knows what the phone needed to do, lets move on.
Next day I was just using Whatsapp, messaging with my gf, and the phone was a bit warm with 20-25% brightness (auto-off). The battery temperature was 32-33C, and I used an infrared thermometer and measured 33.5C on the back of the phone at the Samsung logo. Then I just browsed the settings, setting up my phone a bit more, and it was still getting warm, getting anywhere between 31 to 33C on the battery and around 33C with an IR thermometer. I still can't say much about battery drainage but the phone is getting pretty warm even while browsing the web or doing non-intensive tasks.
Does the A5 2017 get warm or is it just me? Should I RMA it?

Have a520f, 33C is near average. But it's also dependent on the weather. Fast charging or charging with the screen off will raise it. If it wasn't always like that, maybe something in the background is using the CPU, checking for updates or notifications. The CPU/GPU is like a car engine, running at various 'speeds' and 'weights it is carrying', and it does get warm. Only if it gets hot, then it's a problem. Many apps could do those checks once the screen is turned on. Uninstalling/changing settings will only help with battery life (percent drain), the temperature is ok. The a520f (and a510f) also has touchboost, temporarily raising the CPU clock when the screen is touched. Might be noticeable with background tasks while using a keyboard.

Thanks friend. Didn't know about "Touchboost", you opened it up for me a bit there.
While the screen is off, It's perfectly fine. Once I take it in my hands, it starts to get warm around the Samsung logo. It's probably screen + apps + nowhere to dissipate heat, but I wasn't noticing it at start. I've only had it for a couple of days now. I don't know about the battery drainage, with a charge lasting me ~40hrs with 7h SOT I wouldn't say it's draining at all - though my screen is at low brightness, 1/4 max.
Just wanted to see what you other guys are getting as I thought it was high. My ambient is around 24-25C all year long. I've seen tests where people weren't getting more than 30C at all, but as you said, it's the ambient that dictates that.

Idk if this is only with mine but sometimes I turn the phone off completely and put it to charge and it happens that it can reach like 35°C without touching it. Now the phone is plugged, I only browse with chrome facebook.. and it is like 37°c. That can happen when it is not plugged too. Using wifi seems to be better though.
I dont think I have an important battery drain because it can last about 6-8h SOT normal usage.
Onr other thing, when I turn on the mobile hotspot, the battery drains way more than usually and heats up too.