Database Users

Device lower back getting warm?

Does the lower part of your device back get warm after using it for 5-10 minutes web browsing or navigation or just fiddling? When holding in the hand you can clearly feel this warmth, but there is no overheating or burning (at least not now during the winter

its warm most of the time , but i am using this device so i guess it would generate some heat .
and i notice it even more when i have the device set to ROUTER sharing internet , then its even wamrer , depending on how far away the laptop is from the HD2 .
but it hasnt burned up , "YET " ............
/T

Mine gets really warm, no 3g here and a fairly stable gprs, so the phone isn't constantly signal hunting.
But it gets even worse if you charge it at the same time, and in fact when in the van and running a 1 amp ciggy lighter supply, the phone sometimes even says that there is not enough current to keep the phone running the current applications, and to shut some down, not good when bluetooth is needed, and running satnav, auto data updates then seem to be too much.
I dont know what current rating the htc car adaptor is, but if you buy a cheap crappy one from the carphone warehouse, i believe they are only rated at 500ma, the same as thier mains mini usb chargers
Big screen to keep powered up..........but gorgeous to boot!!!

The antenna is located in the lower back. On extended use it'll get warmer. You can also note this when making a long phonecall with phone in hand or using the internet for long time. If you charge it at the same time also the battery gets warm.

Cant say ive noticed it much with my hd2 but my diamond used to get really hot where the antenna was.

In the first days after I bought the phone, I've kept the screen on by mistake... It was in the leather case that comes along and I didn't realize it.
After about 3 or 4 hours, I've realized that the phone was rather hot. Removing it from the case revieled that keeping the screen on for a longer time will not only waste your battery, but even turn the phone in a frying pan.
You could test this if you browse some lame HTML web page, that doesn't have any scripts running in the background...

I'm not gonna answer the poll, purely because it doesn't have an appropriate answer for me.
The back of my HD2 gets warm when I use it intensively, like browsing the internet for 1/2 an hour via wifi, but doesn't get even slightly warm when I'm using it as a phone.
Anyway, it tells you in the manual that the phone will get warm when in use, so it's not as if no-one didn't know about it. We've all read the manual right?

Have you guys never used a smartphone before? It's perfectly normal that they get warm when you use them, especially with WiFi.

freyberry said:
Have you guys never used a smartphone before? It's perfectly normal that they get warm when you use them, especially with WiFi.
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My point exactly.
However, it's more like a HD2 property to get very warm, almost hot when the huge screen is on for a longer period: this doesn't happen on other smartphone.
Then again, this could be taken as normal, given the screen size...
In conclusion, there's no need to warry!
P.S.: in case the phone is charging and the battery is way too hot, there is a feature that will automatically stop the charging process in order to prevent the battery from damaging (according to the manual johncmolyneux mentioned): good thing!

amang2205 said:
it's more like a HD2 property to get very warm, almost hot when the huge screen is on for a longer period: this doesn't happen on other smartphone.
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My Touch HD used to get a LOT hotter than the HD2. This is warm at best.

The Touch HD gets a lot hotter. The iPhone as well. Again, smartphones do get warm, that's perfectly normal.

haha.. it's an extra accessory for cooking.... There's even a secret setting to setup the temperature... To get serious, i think this is perfectly normal. I don't think it gets more than 35 degrees Celcius. I noticed it after hard use. Don't forget 10 years ago, 1Ghz processors with 10 times less power needed passive heatsinks 10 times the size of HD2..

For the iPhone, there's even an app to make it a hand warmer!
But I guess it drains the battery quite fast... and surfing or playing games certainly gives the same effect.

Problem is that it gets warm when charging too... there doesn't seem to be any thermal cutoff or battery full cutoff. I believe the excess heat when leaving the HD2 plugged in over one night is what killed my HD2.

The heat in mine stopped the touchscreen working until the phone cooled down so I've sent it back for replacement. A bit annoying as I was using the phone all the time so it got warm often. In some cases, I'd say it got hot, especially as it's summer here in Australia.

Excessive heat near bottom buttons

Has anyone else noticed a lot of heat near the bottom buttons front and back?

Lieutenant_Dan said:
Has anyone else noticed a lot of heat near the bottom buttons front and back?
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Yep. I can feel it

Not any more so than on my Captivate.

Can you check and post your battery's temperature? (you can have it using System Panel or many other system apps). Had a Galaxy S (Canadian version - i9000M) before and the battery was sometimes as high as 50-55 Celsius, which may or may not have had something to do with the internal SD card dying on many models. Hopefully the big Atrix battery doesn't have this problem.

yea this thing is kinda hot

I agree. It is noticeably warm.

I think we'll generally see some extra warmth because of the h/w, but we also got to remember, we're playing none stop with these suckers since they're new! Most of my phones got warm often the first few days...
Between h/w breaking in , battery breaking in, and users breaking in... i'm thinking its a non-issue (hoping its a non-issue!!)

kenyu73 said:
I think we'll generally see some extra warmth because of the h/w, but we also got to remember, we're playing none stop with these suckers since they're new! Most of my phones got warm often the first few days...
Between h/w breaking in , battery breaking in, and users breaking in... i'm thinking its a non-issue (hoping its a non-issue!!)
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Yeah im thinking the same

I'd still like something a *little* more scientific, like battery temp...

I've noticed the same thing, it's noticeably warm on the bottom. If it was the battery temp itself, you'd expect that to make the upper center warm, where the battery sits.
My battery is running at 32 deg C...I'll have to crank up some apps and see if that changes drastically in proportion to the bottom of the phone heat. Right now it's sitting mostly idle and doesn't feel as warm as I have noticed when playing around with it for a while.

It's most likely where the heatsink is dispersing most of the heat from the processors and other components. Keep in mind this thing has a dual core processor. This isn't your TI-83 graphing calculator from high school.

novaIS350 said:
It's most likely where the heatsink is dispersing most of the heat from the processors and other components. Keep in mind this thing has a dual core processor. This isn't your TI-83 graphing calculator from high school.
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I don't think there is a "heat sink" http://tegradeveloper.nvidia.com/tegra/forum/heatsink-needed

ARM processors don't heat much, it has to be the battery that's causing this. Didn't know where the battery was, but it is kind of weird if the battery is near the top and the heat is near the bottom. Still sounds like a possible issue to me (I'm a heavy user - I *WILL* use it a lot every day, so it has to be able to "stand the heat"...)

I ran speedtest about 15 times in a row to get the phone to warm up. The battery is up to 37 deg c, the bottom of the phone is noticeably warmer than any spot on the battery.
the bottom edge of the battery is a good 1.5 inches away from the center of the "hot spot"on the bottom. I haven't seen a hardware tear down, but I'd guess there's nothing to worry about -It's not "hot", it's just warmer than the rest of the phone.

35c
my battery is running at 35c right now but is not where the heat i am feeling is located. This head is at the base of the phone near the bottom speaker.

Ok, well 30-something C seems fine to me. Could it be the LEDs used to light the buttons?

My nexus one got just about as warm if I played with it as much. So I don't find any issue with it.

http://www.ifixit.com/Teardown/Motorola-Atrix-4G-Teardown/4964/1
Damn near everything in the phone that can generate heat is located in the bottom third of the form factor. This should explain why we can feel it.

The battery is in upper back of the phone.
I think it should be the baseband chip or the Tegra2 that making heat.

When I use the phone its warm just like my Captivate although everyday on my 30 minutes drive to work the phone gets really hot. I have tried it with and without the charger in it and its just hot regardless. Anyone else have the same experience while using the GPS for extended periods of time.

The screen is flaming hot?

Just curius. I tend to use my phone ALOT, just can't put it down, i love it.
But i started to notice my thumbs are feeling like i got burnd on somthing hot. The screen feels very warm and my fingers hurts.
Am i just imaging? Have i just used the phone so much i weard my fingers down, or is im actully getting small burns?
Not the most regular question here. Darn i love this phone to much. With HD2 i had O.R.D . Now i have E.U.D. Extended Using Dissorder) =/

Never happened to me. I doubt it would be getting that hot or the screen would melt. Or the battery would explode.

Im not saying the phone will melt, just that screen feels hot. But guess it's only me then

No it's not only you, i have the same issue. When i use the phone for quite some time the screen gets really hot. Like you said...sometimes it's like your fingertips are on fire! . When this happens i usually stop using it for some time. It cools down pretty quick (half an hour i guess). Other than that...my phone still works perfectly (i've had it since december 2010).

Half hour!!!! Your strong minded =P
Nice to hear im not crazy thou. I guess its a small prize to pay for having the best screen :-D

Hehe...i do have to sit on my hands for that half hour ...
But you're right...it's a small price to pay. Just the other day i saw a HD7 (with LCD)...and i was baffled with the terrible display quality :S.
I'm looking forward to the new Samsung WP7 phone. Rumour: A 4.3inch Super Amoled screen!!

He he, yeah. But i must also wait for what Nokiia have up there sleaves. It´s gona be a intresting christmas =)
Im a bit scared to buy a new Samsung since i been having the call issue and slow internet etc. I just sent it in to Samsung today to get a new radio firmware they havent gone public with yet =D. So there is hope.
In the end, i wonder if its not gone be better to wait untill we find out what the real plans for Xbox on WP7 is heading. Might be that there will be some awsome power phones coming with some hard core graphic cards. Nvidia and MS have been up to somthing i belive, I strongly belive that gaming will get totaly´ly amazing in the future for WP, since there focusing hard to turn the consol to be a entertainment center, leving somme room for a full gaming experience. But i guess, only time will tell.

Have been having the same issue to but it has only been lately on really hot days and out in the sun, but that is the only times I have had the issue

Yup, I've noticed it too.
I don't know whether it's the screen itself or whether it's heat from the internals conducting through the screen.

casey_boy said:
yup, i've noticed it too.
I don't know whether it's the screen itself or whether it's heat from the internals conducting through the screen.
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dude i also feel warm not in screen but back of phone,. When i play 3d games or use 3g apps, it gets warms... When im charging, omg that time it seems like it is cooking... Is it bad samsung build fault or bcoz of flashing omnia 7 with different firmware ???
Phone : Samsung omnia 7 i8700 (t-mobile)

i have this problem when i using a lot my phone but charged too.. (combo)
about the back of the battery cover i think is normal to be hot because battery goes hot and the metal cover leave more feel to user than a plastic cover..

That's okay, friends. It's just the CPU/GPU getting hot when you do things that need power (games e.g.).
You should feel how hot the Samsung Galaxy SII gets at the back when you are playing games (or the EMail client is crashing again and both CPU cores stick at 100% ).
It might get hot while charging too but that's the battery then. Nothing to worry about, just enjoy your phone

So, is throttling and overheating kind of the norm with this thing?

I just bought this phone yesterday (Best Buy, no contract or anything, just 400$ straight up) for AT&T. Already out of the box one thing I notice is that the screen has a grid pattern to it from the digitizer... okay well that's not a big deal I guess in normal operation. On the other hand, I tried doing some filming while driving the car to work. I set the brightness at 100% initially. When I got done driving, the brightness was at 85%. It lowered 15% in my short commute (it took me 10-15 mins to get to work...). Plus the top of the phone near the on/off switch was fairly hot. Is this the norm with this model, or is this just a lemon?
Best Buy has a good return policy so I'm not particularly worried. I am a bit annoyed because I bought an Otterbox Defender from Amazon that I chose expedited shipping on (I wanted it on before I even used the phone to prevent any incidents). If this thing already throttles just doing some filming, I can't quite imagine it doing well inside of a case, with the GPS on while playing music in GA weather. I guess I'll return both today...

xshadowinxbc said:
I just bought this phone yesterday (Best Buy, no contract or anything, just 400$ straight up) for AT&T. Already out of the box one thing I notice is that the screen has a grid pattern to it from the digitizer... okay well that's not a big deal I guess in normal operation. On the other hand, I tried doing some filming while driving the car to work. I set the brightness at 100% initially. When I got done driving, the brightness was at 85%. It lowered 15% in my short commute (it took me 10-15 mins to get to work...). Plus the top of the phone near the on/off switch was fairly hot. Is this the norm with this model, or is this just a lemon?
Best Buy has a good return policy so I'm not particularly worried. I am a bit annoyed because I bought an Otterbox Defender from Amazon that I chose expedited shipping on (I wanted it on before I even used the phone to prevent any incidents). If this thing already throttles just doing some filming, I can't quite imagine it doing well inside of a case, with the GPS on while playing music in GA weather. I guess I'll return both today...
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I would say it is the norm. i do the same thing where i record my commute home which is also about 15 to 20 minutes.
i can also say that it happened with my HTC Evo, Galaxy s2, S3, G2 and now G3. they all got HOT while recording video for 20 minutes straight.
I also never usually run my screen at 100% brightness, most of the time its on auto or around 85%
Edit:
I addition, my wife's iPhone gets hot as well while recording video, especially HD. Its pretty common since vid recording is a pretty intensive activity internally

Hmm... does this hinder you during normal operation, such as driving with the GPS on while playing music?

just disable the throttling and do a hardware mod with a copper shim . you can find those on this forum . i now have NO issues with heat or throttling

I'm also a bit disappointed with the overheating, specially when gaming.
On the other hand the phone is quite good, gorgeous screen, fast, and probably the best price vs spec ratio.
Sent from my phone

yes, me device is very too. especially the power button.
LG should add a high temp warning just in case someone would get burns and scalds

stone0504 said:
yes, me device is very too. especially the power button.
LG should add a high temp warning just in case someone would get burns and scalds
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They have added it and screen brightness is dimming and cpu power is reduced. When thiss happens You are warned in notification in upper screen part.

This is the norm of LG phones in general.
You need to live in ALASKA to get the best performance of this phone.
It is a good phone though,

Beware!!! Daydream vr

Hey everyone so I decided to try the daydream VR since my friend has It. I spend about 45 minutes immerse in the experience and all of my sudden my phone shut off. I took it it out and the phone was extremely hot!! I thought maybe it was dead. So I plugged it in. And it dint do anything at all.. at this point I thought of the worse and thought my phone might have overheated and fried the internal. My friend suggested putting the phone next to the AC to cool down. And about 10 minutes of cooling the phone actually turned on..
All I can say is beware of long periods of time in the VR. I for sure will not be using this..

I posted on this as well the Daydream vr Pixel combo, is dangerous to say the least.
Mine heated up so bad in 5 minutes. i could feel the heat radiate to my face through the unit.
I had to pay for my Daydream a few days ago returning it may be my best option.

egren58 said:
Hey everyone so I decided to try the daydream VR since my friend has It. I spend about 45 minutes immerse in the experience and all of my sudden my phone shut off. I took it it out and the phone was extremely hot!! I thought maybe it was dead. So I plugged it in. And it dint do anything at all.. at this point I thought of the worse and thought my phone might have overheated and fried the internal. My friend suggested putting the phone next to the AC to cool down. And about 10 minutes of cooling the phone actually turned on..
All I can say is beware of long periods of time in the VR. I for sure will not be using this..
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Were you using a case with your phone at the time, also out of interest as you mentioned AC, what is the climate like where you live?

Mdizzle1 said:
Were you using a case with your phone at the time, also out of interest as you mentioned AC, what is the climate like where you live?
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I live In NY temp today was high 40s. And yea I did have a case. But I still don't think this is safe for your phone.

humdrum2009 said:
I posted on this as well the Daydream vr Pixel combo, is dangerous to say the least.
Mine heated up so bad in 5 minutes. i could feel the heat radiate to my face through the unit.
I had to pay for my Daydream a few days ago returning it may be my best option.
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Yeah I'm definitely not ordering one for myseld

egren58 said:
I live In NY temp today was high 40s. And yea I did have a case. But I still don't think this is safe for your phone.
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I agree it doesn't sound great, i doubt it will blow up on your face as the phone will self-power down long before then.
What case are you using out of interest? A thick silicon/rubber case will have a massive impact on the thermal performance on the phone. It will have the same effect as placing something over your computer fan outlet, eventually the system will shut down as the temp builds up.
On the bright side, I haven't seen any mention of any extreme thermal issues (phones will get warm when pushing VR content) so hopefully it is an isolated issue or is a software issue that can be patched.
Other than melting your face, how is the daydream experience?

Lol it is pretty nice,i found an app on the play store.
That had me in some girls bedroom while she was getting dressed.lol I was looking all around the bedroom.
Skydiving,bowling,etc.
Warning you will get dizzy.

That's a shame that it heats up that bad considering the phone has good thermals on its own. But it makes sense with the fabric insulating the phone keeping the heat from leaving efficiently.

tiny4579 said:
That's a shame that it heats up that bad considering the phone has good thermals on its own. But it makes sense with the fabric insulating the phone keeping the heat from leaving efficiently.
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There is no fabric that insulates the phone. The phone sits in plastic with rubber stand offs that space out the phone so it has a gap all around the phone.
I take my OtterBox commuter car off my phone when I use daydream and while the phone does get very hot I have not had a overheat message yet out has the phone shut down.
Sent from my Pixel XL using Tapatalk

Ugh. Was hoping their would not be heat issues in the case...was so annoying taking my note 7 out of the case every time i wanted to VR...
Someone needs to come up with a case with a passive heatsink pf some sort on it.
Sent from my Pixel XL using Tapatalk

Remember guys, any and all devices you leave the "light" on will get hot. Feel your TVs, even the LED get warm - hot.
While you're using the VR you've got the screen on and are taxing the Pixel in an enclosed visor. Plus your head is probably hot, esp if you're watching the prawn stars

clockcycle said:
Remember guys, any and all devices you leave the "light" on will get hot. Feel your TVs, even the LED get warm - hot.
While you're using the VR you've got the screen on and are taxing the Pixel in an enclosed visor. Plus your head is probably hot, esp if you're watching the prawn stars
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Lol

yeah I tried my Note in the Gear VR (came free with it) was an ok experience but my god did the phone get hot, they are pushing the performance of these devices to the limits so it should be expected they get warm, but then there is a point where you should be asking if it was actually thought through, if the phone is overheating then that is a problem and something that should have been seen before now, but if the phone is just generally running hot I would see it as something normal when you are taxing the CPU and GPU to the limits. but if it is running hot to the point of shutting down something is wrong there.

Since this is the phone they used to build Daydream VR (only certified phone) I am sure they tested extensively. This maybe the reason for the low power version of the 821 instead of the higher performance version. The phone actually shutting off I beleive means a defective phone. Unless you just missed all the heat warning I would call Google and get a RMA before your battery goes bad permanently.

Even gear VR overheats it's just the compromise of the mobile versions for now.
Sent from my Pixel XL using Tapatalk

What if you didn't use a case, and maybe put a spacer behind the phone so when you close it there is a space behind the phone for it to breathe....and stay cooler? Can't wait to try the headset out when it comes.
Sent from my Pixel XL using XDA-Developers mobile app

I had read that Daydream on the Pixels has an exception to the thermal throttle normally enforced in order to achieve the required 60FPS for the scene, therefore enabling it to push a little harder than most other 3D applications and inevitably getting hotter. As mentioned earlier it was probably all subject to extensive testing by Google and aids in the explanation to the lower clock speeds they have chosen.
I'm fairly confident that Google was confident the heat is acceptable and considering it's the latest and greatest from Qualcomm the only alternative would be some heat pipes and heatsinks sticking out of the phone.

Same deal with the Samsung vr

Got mine, got through the tutorial and it was already very warm.
It is nothing I can picture me using it too much anyway.
I have the Pixel XL with me almost always but I am not bringing the viewer with me all that often.

I've tried just holding the Pixel XL against the VR Headset and leaving the flap down. Seems to keep temperature down a bit.
I was testing it out that way but ended up on a phone call after about 30 minutes of use. (watched about 5 or 6 movie trailers in 4k and 360).
Phone was only warm to the touch. Temperature in house usually kept around 75 degrees.
Anyone else tried this.?