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.

How to Avoid Injury When Cell Phone Battery Explodes?

Have you heard some news reporting explosions caused by cell phone battery? Are you worried about your safety? Though the qualified batteries can hardly explode, but the risk still exist if the battery is improperly used. If the cell phone battery really explodes one day, how can we avoid being hurt?
View attachment 2287836
If you have seen the pictures of exploded cell phone batteries, you can find that most of the cell phone screens are undamaged while all the backs of the cell phones are badly damaged especially the parts near the batteries. Since the thinnest part of the cell phone body is the part near the battery, it will be the breakthrough point when the battery explodes. At that time, many pieces of the phone body will be ejected and hurt people.
View attachment 2287837
To avoid injury, when you put the cell phone on your desk, let the screen up. The circuit board of the cell phone is solid enough so that the board and the screen can be hardly scrapped when the battery explodes. At that time, they can reduce the impact force. If the explosion happens, the pieces of the components can hardly fly to you. In addition, You can put it in your bag when you go out. It is very dangerous to put your cell phone in your pocket or hang it with a rope around your neck. You will be badly injured when the battery explodes if you do that. If you are afraid of the accidents caused by your cell phone battery, keep a distance with it when you do not need it.

There are millions of cell phones in use throughout the world and only a handful of these stories about batteries exploding. Basically its a very rare occurrence thats not supposed to happen.
Avoid using generic or low quality chargers and replacement batteries. Make sure your phone can dissipate heat when charging, meaning don't place it under a pillow, etc. Do these two things and you'll never have to worry. Theres always the rare chance of a manufacturing defect, but for 99.9% of users they'll be fine.
Sent from my DROID BIONIC using Tapatalk 4

spunker88 said:
There are millions of cell phones in use throughout the world and only a handful of these stories about batteries exploding. Basically its a very rare occurrence thats not supposed to happen.
Avoid using generic or low quality chargers and replacement batteries. Make sure your phone can dissipate heat when charging, meaning don't place it under a pillow, etc. Do these two things and you'll never have to worry. Theres always the rare chance of a manufacturing defect, but for 99.9% of users they'll be fine.
Sent from my DROID BIONIC using Tapatalk 4
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Stay out of this thread with your logic and reasoned thought, or else =p

The solution for lack of Micro SD, removable battery, small batter, water proof!

I am very very happy with Samsung Improvements.
Let me settle your problem above with my humble opinion.
1. No SD Card Support.
Answer :- Dual USB OTG Drive is being produce in this world to solve this issue. I my self is bringing a Strontium Dual USB OTG Drive every where hanging with my keys and it is much more convenient then Micro SD card is because data can be view, used and moved in out easily anywhere and anytime.
Size of a Dual USB OTG Drive is only a 50 Cents.
Weak or Slow Micro SD make the phone juggling in the process of output data and this will affect the phone performance. Thus the more data you had in a phone will decrease your phone battery easily.
2. No Removable Battery / 3. Smaller Battery.
Answer :- Fast Charge is being researched and implemented into Samsung phones where you can charge up the phone easy and fast.
Power Bank is being created in this world to ease battery issue. Slim type of power bank like Xiao Mi 5000 Mah would help user alot. Size wise Xiao Mi 5000 Mah is Same like S6 so you can bring anywhere you can easily and the weight is so so so so light.
Hardware like the Processor and RAM in the phone is being improved so that the hardware would not consume alot of battery life.
Exynos Processor is being refined with smaller die cut size so that the processor wont consume lots of battery while RAM by using LPDDR RAM the voltage is being reduce so that the bettery life would be preserved during usage and sleep mode.
It does not means that higher spec phone need superior big size battery.
4. No dust and water proof.
Answer :- Our eyes would not able to see micro dust and particle where each and every second everything in our world is being infected with dust. It is impossible that our phone would be dust proof unless we lives in quarantine zone that is being clean every 30 minutes.
Water proof is useless feature if you never use that feature at all. How many percentage in this world is utilizing the water proof feature of a smartphone.
Do you know that phone with water proof feature would decrease the phone performance limit in terms of speakers and heat control.
The water proof layer block the speaker and make the speaker sound weak and not load this happen to lots of water proof phone outside in the whole world. With the water proof layer heat in the phone is hard to escape and it makes the phone hardware inside suffer, Therefore the phone hardware will be easily spoil and need to enter SC to repair.
Thus after the phone send to SC repair do you guarantee that the phone is still water proof ?
I can say NO I CANNOT GUARANTEE because once the seal is being tempered there are chance water will leak into the phone.
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Actually this is a reminder for you. You need to do research before you compare a product with another product. Don`t always see the negative side of a product. Be mature by widening the view of a product. There are no perfect things in this world where it can satisfy the unlimited human desire.

I agree! my batchmates (at work) all uses Xperia waterproof phones from Z to Z3 but they wouldn't even let me pour water into their phone they are all afraid it may get damaged ???
Sent from Samsung Galaxy S6 via Tapatalk

On battery life...samsung simply could've just included a larger battery instead of chasing after Iphone to beat their slimness and of course fixed software bugs which contribute to poor battery life.

I think samsung can achieve much better battery life with software fixes, it isn't that bad, also you can always use fast charging or a powerbank
Sent from my SM-G920F

King p1n said:
On battery life...samsung simply could've just included a larger battery instead of chasing after Iphone to beat their slimness and of course fixed software bugs which contribute to poor battery life.
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But the slimness of the Samsung S6 is what attracted me to the phone (Was a diehard HTC fan before and was going to go LG). I also don't have a problem with battery life, I always get more than a full day of use (charge in the evening between 8-10pm, turn-off charger and use until following day).
Regarding the SD card, I also prefer the high speed of UFS over larger size. Even when I use phones with removable SD cards, I have always carried either OTG SD card reader or OTG doube head USB drive (so I can connect to computers). I wouldn't want to take out my SD card that has all my files on it and connect it to someone elses computer to transfer files or make print outs (90% of the time when I want to transfer files off of my phone).

you can always use fast charging or a powerbank

While I agree with everything here except the SD opinion about slowing the phone down and affecting battery which is nonsense, and the waterproofing which is easy to do and a very useful feature especially on holiday, do we really need a thread telling us what we already know? Of course we have fast charging, but how does that help anyone who's battery is running out when they are out and about? Bigger battery would of been better. Although battery life is comparable with every phone i've had barring Xperia Z3. Powerbanks are a great idea but look stupid hanging out of the bottom of your phone when you're making a call.

I totally agree with you. When I was purchasing I was in doubt about needing the good old fashioned samsung features but.. I just dont need it anymore! I feel perfect with my s6 the way it is. Battery is optimised for a day of full usage and if you need more juice you can charge it up really quickly (clap to samsung, it really takes just a few minutes of fast charging to get a lot of juice) or just have a battery bank with you: these "little" guys are the future, there is a big variety, from smaller and lighter ones to bigger and heavier. I have 2 of them, 1 small 2300mah 1,5 A of output and 1 big guy with 20000mah and 2 usb outs, 1 of 2,1 A and the other 2,4 A and thats amazing!
Water resistant? Come on, the best you can do with a "water resistant" phone is keeping it half a hour at half a meter of water....wooow really useful.
Come on.

I heard good things from Aukey Portable Battery 10000mAh (http://www.amazon.com/Aukey-10000mA...?ie=UTF8&qid=1435617316&sr=8-2&keywords=aukey)
It's cheap, supports QUICK CHARGE (the only one in the industry currently for a portable charger), and it can charge S6 up to 2 and a half times

Regarding the waterproof thing, I'm guessing no one uses their phones outside? Where it rains? I've lost the use of a phone by getting caught out in the rain before. I'm not saying all phones have to be waterproof, but as the technologies are improving, it wouldn't hurt to see it become more common. Oh, and how many of us have had the heart pounding moment when someone spills a drink?

solitarymonkey said:
Regarding the waterproof thing, I'm guessing no one uses their phones outside? Where it rains? I've lost the use of a phone by getting caught out in the rain before. I'm not saying all phones have to be waterproof, but as the technologies are improving, it wouldn't hurt to see it become more common. Oh, and how many of us have had the heart pounding moment when someone spills a drink?
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you know getting caught in a rain storm scenario probably isn't the best example with waterproof argument with this phone, besides the fact who stands outside when it rains and talks on their phone unless they are no where around buildnings, their car or trees. Besides that the ports that are affected by water the most is on the bottom of your phone, which means it would have to rain from the ground up to affect it. Also they make little rubber stoppers that you can plug your headphone jack and charging ports with that would help this even more. I personally think unless your planning on taking a swim with your phone the water proof for most people is over rated. I know other scenarios could happen as accidents always do when you least expect them but that's what insurance/ protection plans is for.

bkeaver said:
you know getting caught in a rain storm scenario probably isn't the best example with waterproof argument with this phone, besides the fact who stands outside when it rains and talks on their phone unless they are no where around buildnings, their car or trees. Besides that the ports that are affected by water the most is on the bottom of your phone, which means it would have to rain from the ground up to affect it. Also they make little rubber stoppers that you can plug your headphone jack and charging ports with that would help this even more. I personally think unless your planning on taking a swim with your phone the water proof for most people is over rated. I know other scenarios could happen as accidents always do when you least expect them but that's what insurance/ protection plans is for.
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You don't actually have to be using you phone for rain to be a problem some of us don't drive and have to walk a lot. If an unexpected storm appears, you can get incredibly wet!! The phone that got damaged that I mentioned, was in my pocket. Walking home from work. It is only about 10-15 to walk, too. But the rain was so heavy, when I got home, it looked like I'd been swimming fully dressed.
Let's not forget the buttons, sim slot, microphone and earpiece that are in the upper part of the phone too
I'm not saying that it's common, but from experience, it can happen

LG G6 LS 993 gets hot!

I know these phones are supposed to be waterproof so I would assume airtight also. So why does my G6 get extremely hot just by putting it between armrest and car seat? Not charging, screen turned off and out of direct sunlight.
Sent from my LG-LS993 using Tapatalk

Putting my phone as described, it would disappear below the seat.
Probably you have butt-heaters in your seats.
Or your phone just heats up to body/rump temp, which is higher than that of your hands and can feel near hot when touched.

Waterproof does NOT mean airtight by any means, also doesn't mean there's a vacuum inside.
That aside, the heat still has to radiate away from the phone. You stick it between stuff, you take away its ability to radiate the heat and it ends up warming up more and more.

-Phone coulf crash and reboot without notice. Under such conditions sometimes part or all of the Dalvik/Art binaries get re-compiled on boot. This will generate heat for a short period.
-Huge amount of junk like cache files will cause almost permanent higher load, more heat and less battery time.
-On another phone i once had a bug on a custom rom causing that the cpu governor was reluctant to downclock or switch off cpu cores. It did happen, but much less frequent, most time all cores were running at highest clock, but with near zero cpu load. I noticed the excessive heat in my pocket outside in winter, before within about 4hrs the battery was drained in standby. Never saw such thing again anytime/anywhere after flashing a different version of the rom.