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does anybody else notice too much heat at the bottom of its g1
all of them are, ive had 2 with the sam prob, only when charging and constant non stop use (wen i first got them!) now, its only when its charging, once i plug it out, it cools down.
magicman1987's analysis is incomplete and inaccurate.
Heat is caused by three things; the friction between electrons and conductors, and infrared heat from light sources, the latter of which would be negligible and due to the screen and other LEDs. Electron friction is the primary culprit and occurs due to the following;
1) battery charging *AND* discharging -- lots of electrons are moving fast. Electron friction. MAJOR source of heat.
2) device usage - CPU, wireless radios, etc. Electron friction. Note that the CPU and cell network radios are located in the area you are complaining about getting hot. MAJOR source of heat.
This is all normal and is nothing to worry about.
thanks for the quick reply. another problem that concerns me. is that my speaker some times stops working and i was wondering if the heat have something to do with..
lbcoder said:
magicman1987's analysis is incomplete and inaccurate.
Heat is caused by three things; the friction between electrons and conductors, and infrared heat from light sources, the latter of which would be negligible and due to the screen and other LEDs. Electron friction is the primary culprit and occurs due to the following;
1) battery charging *AND* discharging -- lots of electrons are moving fast. Electron friction. MAJOR source of heat.
2) device usage - CPU, wireless radios, etc. Electron friction. Note that the CPU and cell network radios are located in the area you are complaining about getting hot. MAJOR source of heat.
This is all normal and is nothing to worry about.
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Geez, I think I earned enough credits reading that to obtain a MS EE.
jashsu said:
Geez, I think I earned enough credits reading that to obtain a MS EE.
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lmao!!! ...i have also wondered why the g1 at times got so dam hot!! thanks for the info lbcoder!!
nearxos said:
does anybody else notice too much heat at the bottom of its g1
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Probably yours dream has a hard on. It happens...
The way to fix it is to put it over an Nokia N95 or HTC Magic, Connect them both with a USB and then rub them together for about 2 minutes. Increase the speed of the motion and dont' worry if they start vibrating.
After that, let them rest for a while and you're good to go.
This thread is becoming stupid and juvenile....and closed
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.
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.
sadly i don't have one of these elite-atrix which can stand massive overclocking without at some point reboot because of too much heat.
so i decided to do something against overheating.
what i did was tearing apart the atrix and removing the aluminium part covering the tegra II chip (and no this piece doesnt have any contact to the chip so it doesnt serve as heatspreader).
now i took some spare aftermarket ram cooler and grinded it down to the exact size of the chip.
next step was quite easy: just cut out some part of the inner plastic frame to have some space for the new built "cooler".
last but not least i just put a small drop of thermal paste onto that chip and pressed the new cooler on top. (sidenote: you shouldnt have to glue it. it will keep sticking there because of adhesion)
no i'm going to try wheather this has any effect at all gonna flash some 1.5/1.6 kernel and see if my atrix can handle the speed now
pictures and results follow soon (partly done)
btw any good app to log temps?
Here you go with some pictures (more to come):
Really cool. You are a brave one....
I might have to try it.
Thanks for the info.
Even running at stock speeds the heat management on this phone is horrendous. I actually think the overheating caused my digitizer problems.
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app
Interesting, I hope you took some pictures. (and are willing to share!)
Hahaha, that's epic. Finally a real hardware mod for the atrix, please upload a picture!
Sent from my Atrix
I cant wait to see the pictures! XD
sorry mates, had no pc around and posting the first 10 times via tablet/smartphone is a pain in the ***
So the results are not that overwhelming but i'll surely try to figure out how to optimize all of this.
Results so far at stresstest
Clockspeed ..................................... Before ....................................... After
1000mhz max....................................working........................................ working
1300mhz max .........................reboot after some minutes..................... working
1450mhz max..........................reboot & bootloop soon.....................reboot after some minutes ... sometimes bootloop
as you can see there already is some slight increase of stability with overclocking, but i think that there can be done even more. just got to find a way how to squeeze even more heatsink into that little case without having to cut out any more will try with aluminium tape and also with some leftover copper heatsink soon
Copper should be better and maybe some holes in battery cover.
I hope that you're not going to try water cooling
no but got some copper heatpipes lying around XD
yes some holes in the cover would be better, but i really want to keep the outside stock.
well i also could also varnish some copper-plate into the backcover having contact to the heatsink on the cpu. so there would be a much bigger surface and of course allover masses. but i suppose if you hold this ting in your hand it would be too freaking hot. holding my finger down on that little heatsink while stresstesting can already be painfull. here i'm glad i got that plastic cover in between.
my plans are now to extend the heatsink over msdcard and simcard, since there is some good space left. maybe next days when i'll get home again
Actually copper plate into the backcover is great idea! Don't worry about heat because bigger surface and you still have plastic between heatsink and fingers
I did similar thing long time ago with zx spectrum
well then i need a really thin copper plate wich will not have that good effect on cooling, or i replace some area of the backcover with copper. then there would be heat issue (and aesthetic, too)
Try to find copper foil or easier aluminum foil. Just be careful to avoid electrical short circuit
Are you testing with or without the cover on?
What are you using to conduct the stress test?
I know you want to keep it stock, but an extended battery cover would give you lots of extra room and many have vents. Might even be able to squeeze a fan in there for active cooling!
atm i'm testing with back cover on. having stable oc only with back cover taken off doesnt make any sense since its unusable as daily driver.
i got some aluminium foil at home and some some fine copper plates.i'm sure i'll be able to work something out.
atm I'm using cm 7.2/miui hybrid with faux's 1450ghz 027b5 kernel. slightly undervolted.
mainly stresstesting with "StabilityTest". after about 10 mins of stresstesting i wouldn't get temps over 65°C still tweaking a bit, then i'll give some benchmarks a go and will see if i can get 1.6 ghz kernel running
still looking for some good tool for logging cpu temps or at least showing on screen/status baar. atm got to switch to setcpu and open cpu info tab to get some readouts.
I'm curious to see how 1.45Ghz kernel and tweaked stock rom will do in webtop-mode. hopefully this will be also run stable since webtop-charging also produces some extra heat. we'll see when i get my lapdock back from motorola ^^
extended back cover would be an option for space as long as i dont want to dock it to lapdock oder cardock, which i do multiple times a day. so no option for me.
i have also thought about adding a fan, but when i think about it, it's way to big, makes noise and drains even more juice. so this is a no-go.
if you would want to do extreme overclocking just for benchmarking this would be an option again. but then we would need a kernel with even higher clocks to get something groundbreaking...
so who starts with a LN2-cooled smartphone ?
Lol, fan is going to drain battery really fast. Only for extreme overclocking. Bigger heatsink, some holes or extended battery cover should be enough.
At the end he's going to overclock with liquid azote
Edit: system tuner pro could log data. Try it.
stresstesting @1450 faux kernel 027b5
while connected to a 1.6A charger and static 100% cpu-load i get temps of 86°C with the phone freezing.
got to play with some profiles here and maybe even more uv.
thanks for the tip with system tuner pro, looks promising. now i can get more accurate values and also log and see when the device crashes/reboots/freezes, etc
86°C is too much! Be careful, don't burn your phone
Zeljko1234 said:
86°C is too much! Be careful, don't burn your phone
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lol Could fry some egg and bacon on it!
be sure that i know its way too hot. i set up some profiles in setcpu and undervoltet a bit more.
i'm trying to peek at even while powercharging 65° but for that i will have to improve the heatsink. atm i still get about 72 with limit of 1200 when over 65
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.?