Develop Bugs

[Q] Temperature

Hi Folks.
Does anyone have any idea what a safe operating temperature for the Samsung Epic Touch 4G is?
I most recently have been using the usb to hdmi converter to play shows to my TV and then running a VNC Server on the phone so I can control the Epic from my laptop to pause, play, etc. while the phone is setting by the TV.
This works great, but with the video and the server running the Epic gets up to 42 to 46 degrees C.
I have felt phones get hotter, but I don't want to damage my phone either. It cooled down to 32 degrees C pretty fast after using it as a media center.
Any opinions or technical knowledge? I ran it for a few hours, and am hoping I did not cause any permanent damage.

I know epic 1 shut down at like 110° f. might be too low, but mime got so hot on halloween after using as projection for our haunted house. Bricked the phone until I factory reset it...played movie fine, just boot lopped.
-jr

tubasteve said:
I know epic 1 shut down at like 110° f. might be too low, but mime got so hot on halloween after using as projection for our haunted house. Bricked the phone until I factory reset it...played movie fine, just boot lopped.
-jr
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I think I took the Touch to like 114F. I did not notice the phone misbehaving at all, and it cooled down fast enough. (Well not entirely true. It kinda froze up, but that happens everytime I unhook it from the TV, seems my ADW Launcher gets glitchy when using with TV, don't think related to heat.) I think the reason it really heated up was due to using as vnc server, would not even gain charge. Yesterday when I just streamed the video to the TV without vnc, it stayed charged and seemed cooler.
The phone you used for a projection, was it the Epic or the Epic Touch? And after doing the factory reset, did you notice any issues? Slower, freezing, etc.?

Just Bumping this...
Hoping to get some more incite into the Epic Touch temperature specifications.
Thanks in advance

Bump one more time. Anyone?
Sent from my SPH-D710 using xda premium

pjjohn73 said:
Bump one more time. Anyone?
Sent from my SPH-D710 using xda premium
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I think that the phone shuts down beforehand but it would be nice to know what that number is.
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JohnCorleone said:
I think that the phone shuts down beforehand but it would be nice to know what that number is.
Sent from my SPH-D710 using xda premium
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Thanks for the reply John.
I would think so too. Just curious as doing the streaming etc to the TV is very convenient but not worth damaging the phone. I really think its ok to do so though, the phone has been at 40-42C with normal use. Running a bit above that has not seemed to harm it.
Sent from my SPH-D710 using xda premium

I think I had a run in with a rogue app the other day. My battery was draining unusually fast and I plugged it in to charge, but it was charging very slowly and the temp got up to 120F according to the widget I'm using. I rebooted and everything has been fine since.
Sent from my SPH-D710 using Tapatalk

Often times (I mean, very often) when I go to grab and use my phone I can tell by touch that it's hot and check the battery temp - those times it's usually 106° F and higher. I could tell you now that seeing my temp at 110° to 115° F doesn't surprise me at all. What kills me is that most of these times I'm not actively doing anything with the phone - I've just pulled it out of my pocket and think, damn, it's hot again.
A couple of weeks ago I updated the Widget Locker app to the latest version to try out the Honeycomb and Ice Cream lock screens, so after updating I played around with it for a while. My phone started getting hot - as in HOTTER than I'm used to. I checked the temp and it was screaming hot at 122°. What's worse is that it kept getting hotter and when I checked my battery monitor app it was definitely Widget Locker that was driving it up there. I powered off, let the battery cool a bit then rebooted. I plugged in the phone to regain some charge and checked it a little while later to see it was really, really hot again. Now at some point it was so hot it would NOT charge - stating this explicitly. I pulled the battery to let it cool and tried again later. This happened about 3-4 times before I said screw it and uninstalled Widget Locker all together. Hasn't done that again since.
So, if it helps you at all, temps around 110° - 115° have been fine for me. Over 120° would start to concern me and I think it stops charging and gives you a warning at 130°.
I've attached some photos of that particular instance. The last photo shows my temp distribution... I'm assuming all the time, and it surprised me at being an avg of 88°.

Thanks Beans! That was very useful information. I feel mich better now. Thats to bad about Widget Locker. I have used that app on occasion. I have not had a problem yet with it getting to hot on its own. But if it does I will assume its a troublesome app. Thanks again!
Sent from my SPH-D710 using xda premium

pjjohn73 said:
Thanks Beans! That was very useful information. I feel mich better now. Thats to bad about Widget Locker. I have used that app on occasion. I have not had a problem yet with it getting to hot on its own. But if it does I will assume its a troublesome app. Thanks again!
Sent from my SPH-D710 using xda premium
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I used to have a problem with Widget Locker in earlier versions but the updated versions have been much more battery friendly and my phone doesn't seem to get hot from it. I am using a custom slider that someone from XDA made though but I don't think that should matter
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[Q] Galaxy Nexus really HOTTTTTT!!!!!

I don't know why is my Galaxy Nexux (Sprint) has been getting so hot. I unlock the boot loader and then root with SDK . I installed Cyanogemod 9 and I like to play two game in my GN Bat Walk, Briscola and there where my GN go's up getting as up to 129c. I tryed some other roms and kernels but no change. I'm right now with Paranoidandroid. Any Help will be appreciated.

You ever try using an app like setcpu to check your MHz settings?
Sent from my Galaxy Nexus using Tapatalk 2

129C? As in ~250F?
I think you're a bit off there, but make sure your not downloading anything over mobile data.
Playing HD video makes your GPU or CPU (based on rendering methods) hotter. Sometimes very hot to the touch.
If there's a evident dip in battery life, then it could be an issue with the CPU running when off.
Sent from my Galaxy Nexus using xda app-developers app

rsjc741 said:
129C? As in ~250F?
I think you're a bit off there, but make sure your not downloading anything over mobile data.
Playing HD video makes your GPU or CPU (based on rendering methods) hotter. Sometimes very hot to the touch.
If there's a evident dip in battery life, then it could be an issue with the CPU running when off.
Sent from my Galaxy Nexus using xda app-developers app
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I'm using an applicacion called Phone OverHeat and is app. tell me the temperature in F' or C' in C it would be 65 and in F' its 129.I even used franco kernel with no help. The last thing haved is morning the phone change my alarm tone for no reason. Its like geting crazy. Really don't no what to do with it.

lordangel1221 said:
I'm using an applicacion called Phone OverHeat and is app. tell me the temperature in F' or C' in C it would be 65 and in F' its 129.I even used franco kernel with no help. The last thing haved is morning the phone change my alarm tone for no reason. Its like geting crazy. Really don't no what to do with it.
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65°C isn't a harmful temperature for your phone.

Cilraaz said:
65°C isn't a harmful temperature for your phone.
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If you had my phone in your hands when it gets HOT. Believe me you would't say that and the applicacion that i talk about is always warning me when the phone gets so high. I think i'm going to unroot and block the boot loader back to see what happens. THANKS GUYS FOR ALL YOUR HELP.

lordangel1221 said:
If you had my phone in your hands when it gets HOT. Believe me you would't say that and the applicacion that i talk about is always warning me when the phone gets so high. I think i'm going to unroot and block the boot loader back to see what happens. THANKS GUYS FOR ALL YOUR HELP.
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i regularly reach the automatic shutdown/safety temp of 110C, by choice. at that temp the cpu shuts itself down. 65C is well withing the normal range, and well below the throttle temp. feel isnt a good judge of temperature. feel is relative. try this experiment and you will understand. take 3 glasses of water, one hot, one ice cold, and one room temperature. put your right hand in the hot water and your left hand in the ice water, for several minutes. now put both hands in the room temperature water. your hand thats was in the hot water will feel like its in cold water when put in the room temperature water at the same time. your hand that was in the ice water will feel that the room temperature water is cold. if the air around you is cooler, the phone will feel hot, if the air around you is warmer, the phone will feel cold.

[Q] Heating Problem

The top portion of my phone gets headed up. I am facing this problem from last one week.
Initially my phone used to stay cool even if I played games for hours. But now the top portion gets heated in just 5-10 mins if I play games.
Is this normal??

How hot it is?
since you said it did not heat up before this it's probably an issue you have to solve.
since the day I started using Samsung phones I never experienced during games.Only when charging
Contact Samsung and see what's their view on this.
Sent from the undoubtedly best phone on earth, the Samsung Note II

The battery dosnt feel hot upon touching and the battery temperature is around 36 C. But the top portion of the screen becomes pretty hot.

tarunsoni said:
The battery dosnt feel hot upon touching and the battery temperature is around 36 C. But the top portion of the screen becomes pretty hot.
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The processor is probably located at the upper part of the phone.
After some time playing games my top part is getting a bit warm. My temperature is not that bad, nothing to worry about.

Stuffing a quad core (!) processor into a several mm thin phone will cause heat. Nothing to see here, just doing it's job.

Not experienced heating issue at all, the might be faulty.
I have had 2 not had this proble might be worth getting replacement.

riz157 said:
Not experienced heating issue at all, the might be faulty.
I have had 2 not had this proble might be worth getting replacement.
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If it gets hot without doing anything, only then it can be faulty or else while using it hard is understand able. My s2 used to get hot from top, s3 from bottom and now note 2 from top while playing hd games. Not a concern for me as it gets back to normal very soon
sent from: designed for humans

sohebq said:
If it gets hot without doing anything, only then it can be faulty or else while using it hard is understand able. My s2 used to get hot from top, s3 from bottom and now note 2 from top while playing hd games. Not a concern for me as it gets back to normal very soon
sent from: designed for humans
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I suppose it depends on the severity of heat and what apps or functions are running. If it's gaming for long periods then perhaps phone may get heated but like I said I haven't experienced this myself.

The only time I've noticed my phone get hot is when it's been in my trouser pocket...but then that's a pretty hot region anyway. :laugh:

I switched off quick glance about an hour ago. The dim red light of the sensor has turned off now. Played a game for about half an hour with no heating problem.
I think it was the quick glance which was causing the problem. I also removed open s voice via home key.
Can someone please confirm whether quick glance can cause this problem.

36º it's a very usual temperature, it's not dangerous. If you want, you can downclock your CPU for a lower temperature.

are you using the original charger? or original battery?

Yes I am using original battery and charger. Now the temperature stays around 32 C while playing games.
Sent from my GT-N7100 using xda app-developers app

I was playing zombiewood and my note 2 was peaking at 37c.
I think it was starting to affect the game a bit as the left joystick over the hot part would sometimes get unresponsive. Might be coincidence tho.
Sent from my GT-N7100 using XDA Premium HD app

What's the average temperature of note 2 ?
Mine stays around 32.
Sent from my GT-N7100 using xda app-developers app

It really depends.
What temperature? My CPU temp stays at 42 when im outside and If i surf it will turn to 47
The battery is idle at 25 and my peak is 32.

tarunsoni said:
The battery dosnt feel hot upon touching and the battery temperature is around 36 C. But the top portion of the screen becomes pretty hot.
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I have the same issue when I play heavy games the screen became hot?

My phone gets heated when gaming. All of my friends too
Sent from my GT-N7100 using xda app-developers app

My phone get hot only when i play NFS.

adinfsfocus said:
My phone get hot only when i play NFS.
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the top of the screen became hot also because mine the half top of the screen became hot after platin NFS 10-15 mins?
---------- Post added at 12:25 PM ---------- Previous post was at 12:20 PM ----------
mezo91 said:
My phone gets heated when gaming. All of my friends too
Sent from my GT-N7100 using xda app-developers app
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the top of the screen( especially the upper top half of the screen) became hot also?

Bloated touchwiz or defective phone causing bottom to heat up, will rooting help?

On friday I got a brand new Galaxy S3 from sprint, everything seemed to be well until I got home and actually started using my phone.
After I let all my apps download and everything synced up I started using my phone (texting my friends)
I have the phone completely
What I have noticed between then and now (and there have been plenty of restarts along the way) is that the bottom part of the phone, where the capacitive and home buttons are (I turned off the lights btw) get really warm, borderline hot by just merely unlocking the phone and sending a few texts.
The only apps I can think of that sync in the background are gmail and facebook, but that was never a problem on my evo LTE.
EDIT: The phone is completely stock and it doesnt get warm once the screen is off

Uninstall those apps for a day and see if it runs fine. But it does sound like something is constantly running heating up the processor and that will cause the reboots. Also you can Get an app called cpu spy and install it then let the phone sit for 10 minutes then wake it up and go to CPU spy and see if it's going into deep sleep.
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edfunkycold said:
Uninstall those apps for a day and see if it runs fine. But it does sound like something is constantly running heating up the processor and that will cause the reboots. Also you can Get an app called cpu spy and install it then let the phone sit for 10 minutes then wake it up and go to CPU spy and see if it's going into deep sleep.
Sent from the future via Tapatalk 4
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Sorry, I meant to say I rebooted the phone a couple of times to see if that would help. Should've been clearer.
The heating up only happens when the phone has the screen on, but I'm installing the app right now. Thanks.
Initial install gave me this
http://i43.tinypic.com/2m29ijn.png

I just noticed that the battery doesn't heat up when my screen is on. I don't know if that helps
Sent from my SPH-L710 using Tapatalk 4

Well your getting deep sleep which is good. Let me ask does it get warm or hot to the touch, which worries you? If it's just a slight warmth i wouldn't worry to much. How do you have screen brightness set at? Don't use auto brightness and set the level lowest you can live with.
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edfunkycold said:
Well your getting deep sleep which is good. Let me ask does it get warm or hot to the touch, which worries you? If it's just a slight warmth i wouldn't worry to much. How do you have screen brightness set at? Don't use auto brightness and set the level lowest you can live with.
Sent from the future via Tapatalk 4
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It gets pretty warm, bordering on hot imo, and I have set the brightness to lowest level.
I'm going to root and install a rom on and play with the cpu settings to see if that helps.
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jesuscash said:
It gets pretty warm, bordering on hot imo, and I have set the brightness to lowest level.
I'm going to root and install a rom on and play with the cpu settings to see if that helps.
Sent from my SPH-L710 using Tapatalk 4
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Good luck, keep us updated.
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edfunkycold said:
Good luck, keep us updated.
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Phone runs MUCH cooler on cm. I guess my phone didn't like touchwiz
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Is there too much heat on the G4?

I have read good reviews of the device but also some bad ones that day out gets too hot. Is this a major issue? I'm about to go on a Verizon family plan and want a good device.
Sent from my C6833 using Tapatalk

I randomly get a heat problem. However, I got them with my Samsung phone as well. It seems like the problem was always some Google service running in the background. A reboot seems to fix it when this happens. Btw, these are few and far between for me.

i have not had any heat issues in the 1-2 months I've had the phone and I'm a very heavy user. It does occasionally get warm but never hot to the touch.
note - the device has a 6 CORE processor on it. It's going to have a little bit of heat when you work it

How about touch screen problems, do you have those or is that only some devices?
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I have no problems with the touch detection, but my phone gets really hot after a few reboots when I'm flashing and such.
Sent from my LG-H815 using XDA Free mobile app

Lg g4 is great i have no issues with heat unless out in a hot area playing a game on full brightness. Phone has a throttle to keep it from over heating, i get a few touc delays here and there. But it could be the screen protector. Although i enabled developer options and force 2d gpu and and disable animations. Its all smooth sailing there. Top. It off its a great phone to me i love it. I love it better with root. I hate verizon and others bloat ware

I just got the LG G4 and I'm real happy with it so far. Other than the bootloader that is...
Sent from my VS986 using Tapatalk

I've only noticed this when outside on a sunny day where it's already hot, plus the screen at 100% brightness can make the phone pretty warm.

geoff5093 said:
I've only noticed this when outside on a sunny day where it's already hot, plus the screen at 100% brightness can make the phone pretty warm.
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I have the phone now. I'm very satisfied so far.
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