Develop Bugs

Evo fails in freezing temps!? Or is it something else?

Alright guys got a really weird issue and I would like to know if anyone has had this problem before. So I was at the gym for about 2 and a half hours tonight,and I left my phone out in my car. I live in the midwest so temps are starting to get pretty low. About 30 here tonight. Anyways I came back out when I was done and my phone would not turn on. When I plugged it in it showed no led. So after about 45 min I pulled out my battery and popped it back in and magically my phone came back on. I flashed the new ziggy kernel last night and I use os monitor to keep it set to smartass but I don't know why this happened? I guess im just puzzled is there an issue with the battery in really cold weather or did the kernel cause it? If you guys could give me some input I would appreciate it. Thanks.
Sent from my PC36100 using XDA App

I'm thinking its the battery since it is well known that batteries underperform under low temperatures.

Same Here...
I live in NYC, making a long story short...i left my phone exposed to the cold for a few hours and when i came back my phone wouldnt turn on either... no light, no charge, and after a bit in m pocket poof just started to work... I mean i know Everything has a Cold/hot temp, limit i think iPods are around 20 something degrees,,, i wasnt aware of the evo until now...

DarKEvo25 said:
I live in NYC, making a long story short...i left my phone exposed to the cold for a few hours and when i came back my phone wouldnt turn on either... no light, no charge, and after a bit in m pocket poof just started to work... I mean i know Everything has a Cold/hot temp, limit i think iPods are around 20 something degrees,,, i wasnt aware of the evo until now...
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Thanks for sharing sir. It makes me feel a bit better that was my thought but I didn't know for sure ill have to research the battery itself and see what temp it can handle
Sent from my PC36100 using XDA App

Just overvolt it I wonder if we can do that via an app, AFAIK it requires a kernel level change

aph said:
Just overvolt it I wonder if we can do that via an app, AFAIK it requires a kernel level change
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Well I am undervolting with ziggys new kernel and didn't seem to help. I think the battery is just a battery period. The cells go crazy at 32 degrees.
Sent from my PC36100 using XDA App

It's fairly well known that batteries don't do well in cold (thus why you see in car battery commercials "specially made to handle cold weather", etc. etc.) so that could be an explanation.
On a side note, LCD's don't do well either (think about it, Liquid Crystal Display). If you want an example, go in to Best Buy or something just after they open, while the building is still cold, and check out the LCD TV's; they'll all be lagging and fuzzy pictures.

Yellowcard8992 said:
Well I am undervolting with ziggys new kernel and didn't seem to help. I think the battery is just a battery period. The cells go crazy at 32 degrees.
Sent from my PC36100 using XDA App
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I said overvolt not under. It would make it run hotter, so the temps wouldn't affect it so much. Put it in an inside jacket pocket, that tends to get my phone pretty hot on its own.

I live in Virginia and occasionally leave my phone on my car. Temperatures have been in the teens and single digits lately. No problems so far, but I'll probably be more cautious now. Hope it doesn't affect my battery in the long run.
Sent from my PC36100 using XDA App

aph said:
I said overvolt not under. It would make it run hotter, so the temps wouldn't affect it so much. Put it in an inside jacket pocket, that tends to get my phone pretty hot on its own.
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Thats my fault, read your post quickly last night and didn't pay too much attention I guess I just saw "volt". Overvolt would not be a choice of mine though I would rather not risk frying my phone.

[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.
Sent from my SPH-D710 using xda premium

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
Sent from my SPH-D710 using Tapatalk

[Q] Phone turns off randomly

My phone randomly turns off when I'm not using it. (Like when I leave it too charge overnight or don't use it for a couple hours)
What could be the problem? How to fix this problem?
Thanks,
Benwaffle

are u rooted? have cwm installed? custom rom?

Rooted, ardatdat kernel, cwmr. Actually it didn't seem to happen last night, and I just installed the new kernel yesterday
Sent from my SAMSUNG-SGH-I927 using XDA

if it happens again after you changed the kernel, try a different rom and stay away from overclocking it and stuff. can't hurt to inspect your battery contacts if you spilled anything near it.

Turns off or locks? some people are getting it to lock it's called the sleep death and happens if you put your phone to charge at night with Wifi on. Some people try different Roms to fix this issue.

Hehe my phone doesn't sleepdeath...I charge it on with wifi...maybe it's different
Sent from my Samsung CAPTIVATE Glide SGH-i927 using xda premium

Aquethys said:
Hehe my phone doesn't sleepdeath...I charge it on with wifi...maybe it's different
Sent from my Samsung CAPTIVATE Glide SGH-i927 using xda premium
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That was a very helpful post.....Nah just kidding it doesn't happen to everyone. I have had my phone since December last year and I can count on 1 hand how many times it has happened to me. I always charge at night with WIFI on. But when it does happen I simply hold the power button till it reboots, so not a very big issue to me.

Reviving this thread because I'm having a similar problem...
Running on stock, rooted.
It happens often enough for it to be a problem.
Only concern is when I go to sleep and rely on my phone as an alarm clock. I need my phone to work
Please note last charge cycle on the attached screenshot. Battery was at 84% and completely dead after sleeping for 8 hours. It doesn't even show me how the phone died, or what made it die.
During the day, I think I have the same problem. My phone will simply not turn on at times. I have to do a battery pull before I can get the phone to turn on again.

Check the battery. Take it out and put it on a flat surface like wood or metal. Spin it like you would as a bottle, if it does that, then your battery is swollen and will cause problems like what you're experiencing. If that does happen, you need to replace the battery, as that is your only option. Sorry . It happened to me, but i was covered under warranty.
Sent from my SGH-I927 using xda premium

doode2011 said:
Check the battery. Take it out and put it on a flat surface like wood or metal. Spin it like you would as a bottle, if it does that, then your battery is swollen and will cause problems like what you're experiencing. If that does happen, you need to replace the battery, as that is your only option. Sorry . It happened to me, but i was covered under warranty.
Sent from my SGH-I927 using xda premium
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Battery looks fine. Not visually swollen and doesn't spin on a flat surface. Wish I had another battery to test this out...

I saw that you're using another rom. Did you wipe battery stats and cache before installing it? I remember with my DHD I didn't do that and it would die randomly here and there. After I reinstalled the rom, it was working alright.
Save your apps on TB and do a nandroid backup before doing it so you don't lose any data.
Also, try out the literom, it's basically stock without bloatware.
Sent from my SGH-I927 using xda premium

doode2011 said:
I saw that you're using another rom. Did you wipe battery stats and cache before installing it? I remember with my DHD I didn't do that and it would die randomly here and there. After I reinstalled the rom, it was working alright.
Save your apps on TB and do a nandroid backup before doing it so you don't lose any data.
Also, try out the literom, it's basically stock without bloatware.
Sent from my SGH-I927 using xda premium
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I've been running it on stock, just rooted.
I don't believe wiping battery stats will do much, considering they're wiped every time you charge to 100%. But the battery level is definitely off. I reboot my phone sometimes and end up going from 50% down to about 10%. It's not reporting accurately.
I will be installing a new rom over the coming weeks, just have no time right now. I just wanted to know if this seems to be a hardware problem or software.

Let me know how it goes. Sorry for the late response. I have been busy with school and work
Sent from my SGH-I927 using xda premium

I'm having this same issue with my Glide of 3 weeks. I remember having a similar problem several years ago - can't remember what phone it was - may have been the N900. I think that one was fixed by conditioning the battery. Where you drain it to 20% and then recharge several times. Does that technique sound familiar to anyone else?
I am stock GB/rooted and not opposed to flashing a new rom if that would help. Any suggestions on a minimal rom with working camera? (my one requirement)

doode2011 said:
Let me know how it goes. Sorry for the late response. I have been busy with school and work
Sent from my SGH-I927 using xda premium
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Looks like it was a rom specific issue. More importantly, it was a battery drain. Something was causing my phone to hang and drain the battery overnight if I didn't leave it on charge. Not happening with CM10.1
Gingerbread on this phone has a lot more bugs than I normally like. I don't know how Samsung didn't catch these or found it ok to market the phone despite knowing these bugs exist. For example, stock music app periodically slows down and force closes for no reason.

My girlfriends phone is having this same issue after I re flashed the stock rom, rooted it, and installed twrp. Does anyone have any insight to this issue before she throws the phone against a wall?
Sent from my Galaxy Nexus using xda app-developers app

doode2011 said:
Check the battery. Take it out and put it on a flat surface like wood or metal. Spin it like you would as a bottle, if it does that, then your battery is swollen and will cause problems like what you're experiencing. If that does happen, you need to replace the battery, as that is your only option. Sorry . It happened to me, but i was covered under warranty.
Sent from my SGH-I927 using xda premium
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Click to collapse
Thank you! I was having this issue, and this helped me figure it out. My battery was definitely swollen, and after seeing this, I now notice it actually doesn't even sit flat in the battery compartment anymore. Luckily when I called AT+T they said it was still under warranty and sent me out a new battery with little hassle.

Extremely high phone temp!

Does anyone have issues with your SGSII T989 phones having extremely high temps?
I get it when using the GPS, charging the phone while i'm talking on the phone, and doing a few other activities. It did not do this on my first purchase of the phone and i'm a bit weary of the temps as sometiems it gets quite warm!
Currently I'm on O.E. SGS II Rom w/ root, that's about it! No OC no mods or anything of that sort. (Just CWM and Root).
Any tips would be greatly appreciated, as this heat as caused me from using my phone each day more and more.
P.S. I WAS on Juggernaut Rom and then flashed back to Stock, and it was having this heating issue then, should i try to do a complete 100% wipe like on one of the development threads and start from scratch like I just got the phone from the factory again? I wiped my system using Odin and it seems to of kept my old programs, no information like games and etc. was kept however, does anyone think that might be the problem? Once again thanks!

XxGoKoUxX said:
Does anyone have issues with your SGSII T989 phones having extremely high temps?
I get it when using the GPS, charging the phone while i'm talking on the phone, and doing a few other activities. It did not do this on my first purchase of the phone and i'm a bit weary of the temps as sometiems it gets quite warm!
Currently I'm on O.E. SGS II Rom w/ root, that's about it! No OC no mods or anything of that sort. (Just CWM and Root).
Any tips would be greatly appreciated, as this heat as caused me from using my phone each day more and more.
P.S. I WAS on Juggernaut Rom and then flashed back to Stock, and it was having this heating issue then, should i try to do a complete 100% wipe like on one of the development threads and start from scratch like I just got the phone from the factory again? I wiped my system using Odin and it seems to of kept my old programs, no information like games and etc. was kept however, does anyone think that might be the problem? Once again thanks!
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If you are rooted you might want to try a different kernel and maybe SetCPU. I had some overheating/temp issues a while back and after I lowered my CPU a bit and set it to an Ondemand state with a profile for screen off running CPU very low when not actively in use it seemed to fix the problem.. Btw SetCPU is free for XDA users, there is a thread somewhere in the Android Hacking Apps forum..
GL
Edit: I thought it was free to xda users, I checked and cant find the thread, maybe I was wrong or they changed it..

ty VoiD
I'm on the stock kernal, I was on the modified 1.7ghz kernal before i believe, as I could overclock over that, but i just recently stopped that and went back to stock. I was and still am expecting the phone to malfunction on me sometime soon lol. It's been a really reliable phone so far! My G1 and Mytouch 3G slide (gf's phone) took soo many dumps on me while I used it. Each of those phones were probably sent back 5-8 times and they were kept completely stock for a while!
Back on subject though. Any kernals that go well with the factory rom? I don't favor any aftermarket roms right now as they're not stable enough for my usage IMO.

I have heat problems but I've always had the stock kernel...
Sent from my SGH-T989 using XDA

Undervolt at the stock clock if you want to lower temps. However, charging will always increase heat especially if you are using the phone at the same time, and depending on ambient temps.

Dude my moms sgsII literally got fried because it heated up once. She was using her phone normally and all of a sudden it started heating up. She kept using it and the next day the phone won't turn on, charge or get into download mode. It looked like what a hard brick would look like. So I just returned it for a HTC one S.
Btw she was on full stock.
My phone heats up a lot because I'm down south with 90-95 degree temps and I keep phone in the car dock by the windshield but it never failed on me.
Sent from my SGH-T989 using XDA

I thought it was a well fixable issue. Guess not? lol... Either way, everytime my batt temps rise, i notice i get 40-45C and i start to get worried. So if i'm in a car, i'd just put it next to the AC vent while the car's running and temps get down to about 25C and i'm good again. I just don't feel comfortable with the phone anymore like I use to. It never did this before, why now??

I have an app that warns when it goes over 40 and it happens daily. I was downloading torrents one time and it keeps the screen active while downloading and the thing got like 62 celsius before I realized what happened. It almost burnt my hand lol. if your ever in sunlight or palming the phone while using gps on 4g.
overheating is very common with this phone I wouldn't worrie about it to much it is uncomfortable though if in your pocket
Sent from my SGH-T989D using XDA

Also remember, any app that uses hardware acceleration for graphics or video (games, browser, etc.) or gps will cause the phone to heat up if used for a prolonged period of time.
Playing Osmos was like setting my phone on fire.

curry67 said:
I have an app that warns when it goes over 40 and it happens daily. I was downloading torrents one time and it keeps the screen active while downloading and the thing got like 62 celsius before I realized what happened. It almost burnt my hand lol. if your ever in sunlight or palming the phone while using gps on 4g.
overheating is very common with this phone I wouldn't worrie about it to much it is uncomfortable though if in your pocket
Sent from my SGH-T989D using XDA
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Are you sure I shouldn't worry? I mean, I don't want solder points falling off due to too high of a temp. Then again these temps don't even reach 100C yet. I've got the same app too probably, it's a battery monitor that tells u when the phone gets too hot. mine's goes off everytime i'm around 40+
AaronPauley said:
Also remember, any app that uses hardware acceleration for graphics or video (games, browser, etc.) or gps will cause the phone to heat up if used for a prolonged period of time.
Playing Osmos was like setting my phone on fire.
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Yep, I use GPS and often. It's just so much easier than guessing your way off a piece of paper. But yeah, like you the phone gets soo hottttttt. I have to always put the phone to my AC vent.

It's normal to a point.
These are serious computers we have.
Think of the old P486's back in the day, those things needed huge heat sinks and some even had fans
our phones which is what, 4x the cpu power and not only no heat sink but everything is squished together inbetween a hot screen and a hot battery
That being said, I use a program called A-see, which is to watch my security cameras while out.
And if I forget to close it out (Actually exit the program) It will keep running and running and eventually probably fry my phone
lets put it this way, I will actually start to feel it in my jeans pocket, it gets that hot.
Also I have a program which will alert me if my phone gets to 130 degrees F
And will automatically shut the phone down if it gets to 140
overheat protection or something

I had this issue where whenever I try to charge my phone it would overheat to the point unbearable to touch I went back to stock flash different roms in the end i exchanged it it was still under warranty

Serious over heating issue

So ive had my Tmobile G4 for about 3 weeks now. Ive been using the G series since it started. I love the G4 but wow ive never had a phone with this type of heating issue.
There is not a time when the phone js not at least warm to touch. Few times a day it gets to the point where its too hot to touch at all. Forget about making a phone call way to hot to lut against face.
Im not doing muxh of anything either. Web browse etc... But its hot at idle screen off just sitting there.
Anyone have issues with heating? Multiple times its given me the over heating message and shuts off phone.
Last night for example it got to 80c.... Thats fricken hot!
Could factory reset help it? I dont know what to do at this point? Am i just having to get a replacement? As i type this from my g4 sensors showing high 60 to low 70C.
The heat is generating from the top half of the phone btw. Like at the camera it feels like.
Any suggestions or help? Thanks

Syntax323 said:
So ive had my Tmobile G4 for about 3 weeks now. Ive been using the G series since it started. I love the G4 but wow ive never had a phone with this type of heating issue.
There is not a time when the phone js not at least warm to touch. Few times a day it gets to the point where its too hot to touch at all. Forget about making a phone call way to hot to lut against face.
Im not doing muxh of anything either. Web browse etc... But its hot at idle screen off just sitting there.
Anyone have issues with heating? Multiple times its given me the over heating message and shuts off phone.
Last night for example it got to 80c.... Thats fricken hot!
Could factory reset help it? I dont know what to do at this point? Am i just having to get a replacement? As i type this from my g4 sensors showing high 60 to low 70C.
The heat is generating from the top half of the phone btw. Like at the camera it feels like.
Any suggestions or help? Thanks
Click to expand...
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Is the battery draining abnormally fast? Check the usage for play service, could need that fix

If you live in a hot area like me, such as LA, then you probably experienced phone shutting down while using phone as a GPS due to the overheat.
I've never Had that problems with all of my previous phones but I'd give few software updates for optimization.
Sent from my LG-H811 using XDA Free mobile app

Yeah battery is draibing very fasy. I use a battery monitor and nothing is sucking it up.
Also, i live in Arizona where it has been 110 degrees daily. Though it hasnt shut down from heat outside or when using gps yet.
It shut down with over heat warning last night in my apartment where its 67 degrees in here while i was on google.com just browsing. So im clueless right now.
I just cleared cache partition and booted to safe mode to see if it runs any better.
I can leave my phone on my table for an hour and pick it up and itll still be scorching hot doing nothing. Its literally never not hot to touch.

Yeah. That's the mytmobile app... Unchecked all the boxes in the settings. Helped me
Sent from my LG-H811 using Tapatalk

My 1st Tmobile G4 Online Preorder had some problems mostly screen. I sent it back. I went to the store and bought one. That one was always hot as well. It was always throwing warnings at me. I had Gmaps on in my car with the AC on and only 70F out the time and it shut down on me. I called Tmobile and did some master reset etc and still was the same. I finally just went back to the store and told them to exchange it after they seen how hot it got in store. Tired to tell me I was at 15days when I went back in but I called in a few days before and asked what day was the 14th Monday or Tuesday I guess they count Purchase day as day 1 and that's what I thought but the person I talked to said no but they called Manager and they honored it. This phone finally seems to be good a few little issue's but they should get worked out soon with software we all hope. The 1st 2 phone's I had the Update Pushed to my phone the 3rd one was already on the phone so might be newer batch ? I was not happy spending over $600 on the phone with the issue's I had on those til this 3rd one which is good so far.

Syntax323 said:
I can leave my phone on my table for an hour and pick it up and itll still be scorching hot doing nothing. Its literally never not hot to touch.
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Then I'd say that even when it's doing nothing, it's still actually doing something, maybe just something it shouldn't be doing.
My Verizon G4 ran warm, and I was disappointed with the battery life. Different monitoring tools were unable to point me to what app (?) was causing the problem. Sometimes it would stay cooler after a reboot. Mine was never just constantly hot, however. Mine would be cool sometimes when sitting around, and then sometimes warm. Like taking it off the charger in the mornings, some days it would be cool, others it would be warm (~95F or so), when it had been just sitting there with the screen off.

Just now for example. After i replied here i out my phone on my table. I just now picked it up and it was 74 C. Scorching. Like its just gonna melt ibro a pile of G4 goo lol.
I guess ill call my store on Monday. Safe mode and clearing cache partition didnt help at all.

Syntax323 said:
Just now for example. After i replied here i out my phone on my table. I just now picked it up and it was 74 C. Scorching. Like its just gonna melt ibro a pile of G4 goo lol.
I guess ill call my store on Monday. Safe mode and clearing cache partition didnt help at all.
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Click to collapse
Are you using a case with it? I recently had overheating issues and figured out that the leather wallet case I was using was causing my G4 leather to overheat. It went as high as 112°5F But as soon as removed it it went back to normal.
Sent from my LG-H811 using XDA Free mobile app

jjdevega said:
Are you using a case with it? I recently had overheating issues and figured out that the leather wallet case I was using was causing my G4 leather to overheat. It went as high as 112°5F But as soon as removed it it went back to normal.
Sent from my LG-H811 using XDA Free mobile app
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Nah I have the black version normal backing not the leather version. I have the thin Tech21 case but i took it off a week ago to see if this helps.
As im typing this my phone is at 75C which is 167 degrees F! So hot!
Possible a Facorty reset could help? I really dont have many apps installed right now either. Since its relatively new ive been slowly installing apps. I started blank, didnt install anything from backups etc. The apps i do have installed are pretty basic. Nothing syncing or running. Ive been clear the recents aswell just to try. Frustrating

Have you tried turning off WiFi? I've noticed occasionally that my phone will constantly drop WiFi on my home router and reconnect a few seconds later, repeating this until I restart the router. All of that constant disconnecting and reconnecting makes it pretty hot...
Sent from my LG-H811 using Tapatalk

All latest smartphones heat up
Sent from my SM-G920T

Supersanborn said:
Have you tried turning off WiFi? I've noticed occasionally that my phone will constantly drop WiFi on my home router and reconnect a few seconds later, repeating this until I restart the router. All of that constant disconnecting and reconnecting makes it pretty hot...
Sent from my LG-H811 using Tapatalk
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Yeah its happening regardless. I turn data off when im on wifi and my wifi never loses connection, it stays constant. Though i did try a few days ago using no data or wifi and same dral, just hot.

Have you tried a factory reset? I leave my wifi on and stream music and everything. The only time it gets warm is when I Fast Charge. But I mostly wirelessly charge so its still cool.
Maybe you should exchange it.

I'm second on that doing factory reset. Seems like you have a corrupted profile or rogue app, or both.
Sent from my LG-H811 using XDA Free mobile app

What sensors are you referring to? With wich app? That's fundamental

I were having over heating problems on my G4. It were so hot at one point that my 6 year old daughter picked it up to play a game on it. The phone was that hot my daughter actually started crying cause the phone burnt her hand. This is not good. I have an awful lot of applications on my handset, over 300 so before I contacted LG I did a LG backup and reset. I restored probably half the apps what I had and a week after I haven't had a problem and the phone seems to be running as it should. The phone isn't even warm.
My theory is the G4 has 64bit processors. The snapdragon 810 processors were known for over heating and the G4 uses the snapdragon 808 processors for this reason. The 64bit processors deal with twice the data at the same time to the old 32bit processors and this contributes to them getting too hot. I feel that a few tweaks by developers and updates from LG is what's needed to combat the over heating. Time is our friend here and a bit of common sense. When you install a new app and overheating occurs then just remove the problem app. I always see how the app affects the handset now for over heating problems.
The 64bit processors in the G4 are new and need to have some updates to combat the overheating I feel. I recommend a system restore, debloating and only using the apps what you need.
I remember when pc's went from 32bit to 64bit processors. There were processors burning out, melting, water cooling became popular and bigger fans to combat the over heating. In time it sorted itself out so I feel this is the case for the G4 and other new handsets running 64bit processors.
Hope this helps.

Did anyone try unchecking the boxes in the my T-Mobile app? My phone went from 50% to %5 in less than 30 mins running crazy hot. You could also try uninstalling the app updates, or using the debloater tool on xda to disable it.
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Same here, although not so hot that it "burns". iPhone 6 got warm but never so hot - software improvements should help combat this over time. +1 on the debloat tool.
One may argue the dead air via removable back cover can act as an insulator vs a compact design. Maybe just get an Otterbox/Thick case so you can't notice the heat as much? Could possibly lower battery lifespan though.

I've had my AT&T G4 for a little over a week. The first couple days the battery life was horrendous so I did a factory reset. The battery life improved greatly however that's when I noticed the top half of my screen getting unbearably hot. Another factory reset didn't solve the issue. So I talked with an AT&T Rep and am taking mine in for a replacement now. Hopefully will resolve this issue. Will update.