Tablet charging and running hot - Galaxy Tab 7.7 General

I started having this weird problem the past few days. My tablet seems to become very hot while charging. It also runs quite hot when on wifi. As a result the battery performance seems to be degrading. Any light on this...our has anyone faced similar problem. A possible solution to this would be highly appreciated.
Sent from my GT-P6800 using xda premium

if you read the user manual which comes with the tablet ( pdf is also available on official website) they have mentioned it in manual that tablet can get hot while charging and using processor intensive tasks like wifi and games. They have also said that it will not affect the longevity of tablet or battery in any way . My tablet does get a little warm while charging and after heavy usage. i guess its universal

om0 said:
if you read the user manual which comes with the tablet ( pdf is also available on official website) they have mentioned it in manual that tablet can get hot while charging and using processor intensive tasks like wifi and games. They have also said that it will not affect the longevity of tablet or battery in any way . My tablet does get a little warm while charging and after heavy usage. i guess its universal
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Click to collapse
I wouldn't worry if the tablet was getting a little warm. But the moment i turn on the screen, the left side of the tablet. both back and front become exceedingly warm even without running any intensive programs. The issue started about 2-3 days back only. i never had this problem before.
While charging the tablet is literally quite hot, and like I said more on the left side.
I think I need to go to a service center to get it checked.

Manipur said:
I wouldn't worry if the tablet was getting a little warm. But the moment i turn on the screen, the left side of the tablet. both back and front become exceedingly warm even without running any intensive programs. The issue started about 2-3 days back only. i never had this problem before.
While charging the tablet is literally quite hot, and like I said more on the left side.
I think I need to go to a service center to get it checked.
Click to expand...
Click to collapse
If the battery gets hot, the effects are similar to those of overcharging. You know how bad overcharging would be. So I recommend you to take a deeper look into the issue.
Taking it to service center is a good idea; but since the service center would wipe your tablet clean anyway, so why don't you check if there are any background processes that have been causing this acting up lately? Messengers like whatsapp/line, screen lock apps, weather and news widgets, adware/free games with ad are examples of the apps that would be taking background resources, you would like to check whether you have installed new apps like that.
Most background processes usually won't cause your battery to act up, except when they got stuck on something. You probably couldn't fix it by yourself so you would better track them down and remove them.
TasKiller is one of the app that could show you background processes. There are countless others good app for the same purpose.

My tablet has been on charge (while off) for almost 24hrs and still hasn't fully charged yet.
What gives?

uncle_buckman said:
My tablet has been on charge (while off) for almost 24hrs and still hasn't fully charged yet.
What gives?
Click to expand...
Click to collapse
Do you use the stock wall charger to charge it?

Related

Overheating

This thing gets hot! Just been configuring launcher pro which took around 5 minutes and wasn't data intensive and the back of the phone is really hot. So much that I can smell the plastic heating up! The battery drained real fast during the process too.
Anyone else experiencing this ?
Well that doesn't sound good! I haven't had anything like that. Have you checked the power intake?
Sent from my GT-I9100 using Tapatalk
steve228uk said:
Well that doesn't sound good! I haven't had anything like that. Have you checked the power intake?
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Good point, where can I check the power intake?
Thanks
mwatson said:
This thing gets hot! Just been configuring launcher pro which took around 5 minutes and wasn't data intensive and the back of the phone is really hot. So much that I can smell the plastic heating up! The battery drained real fast during the process too.
Anyone else experiencing this ?
Click to expand...
Click to collapse
Mine got really hot the first day I used it (27/4)...I was just checking out features and installing a few apps. I rebooted it after the battery was fully charged and it's been fine ever since.
Sent from my Galaxy S II using XDA Premium
I have the exact same problem, it happens especially when I play any games or intensive appliaction. The battery drains and it gets hot next to the camera, I suspect this is where the cpu lives. Do you think its because its rooted? because I rooted it as soon as I got it so I dont know what it was like before.
And as I am away from the uk for the next six weeks I cant even send it back to O2
No nothing to do with root, mine was same before and after, pretty normal to get hot on some demanding apps.
shohid1234 said:
I have the exact same problem, it happens especially when I play any games or intensive appliaction. The battery drains and it gets hot next to the camera, I suspect this is where the cpu lives. Do you think its because its rooted? because I rooted it as soon as I got it so I dont know what it was like before.
And as I am away from the uk for the next six weeks I cant even send it back to O2
Click to expand...
Click to collapse
vimto25 said:
No nothing to do with root, mine was same before and after, pretty normal to get hot on some demanding apps.
Click to expand...
Click to collapse
And i thought i was alone...
It gets really hot sometimes though, not to the extent of burnt plastic smell but it gets pretty uncomfortable touching around lens at the back.
I've been going through this this morning. It seems that the CPU loves to go up to 1.2GHz even if it doesn't need to be that high (and it stays there). Also there I've also been noticing through ADB shell that their are a few niggles. For example the wi-fi sharing process can start without even being activated.
For example this was a ADB shell top taken while running Cordy downclocked to 800MHz in setcpu. The phone was a tiny bit warm but only by the camera (where the CPU is). Basically, this just shows that if you are playing a game, nothing else is going on so the CPU shouldn't be going up to 1200MHz. And it plays the same as when it isn't underclocked.
I'm currently assisting Pulser with investigating this until he gets his SGS2.
Fysi said:
I've been going through this this morning. It seems that the CPU loves to go up to 1.2GHz even if it doesn't need to be that high (and it stays there). Also there I've also been noticing through ADB shell that their are a few niggles. For example the wi-fi sharing process can start without even being activated.
I'm currently assisting Pulser with investigating this until he gets his SGS2.
Click to expand...
Click to collapse
My phone gets very hot at time too...
I also noticed wifi sharing starting up by itself. Yesterday it started by itself and used 10% battery usage even though I had wifi switched off the entire time..
BoogWeed said:
My phone gets very hot at time too...
I also noticed wifi sharing starting up by itself. Yesterday it started by itself and used 10% battery usage even though I had wifi switched off the entire time..
Click to expand...
Click to collapse
Do you have root and Titanium/MyBackup Pro?
If you do, freeze anything that mentions wifi sharing, unless you are going to use wifi hotspot and kies air a lot.
mwatson said:
This thing gets hot! Just been configuring launcher pro which took around 5 minutes and wasn't data intensive and the back of the phone is really hot. So much that I can smell the plastic heating up! The battery drained real fast during the process too.
Anyone else experiencing this ?
Click to expand...
Click to collapse
I posted on this a few days ago..
My phone got so hot that it shut itself down!
since that i have done a complete reset of the phone and started from scratch again....100% better.
The problem as i see it is with all the 'tinkering' that we users do. All the additional launchers etc and widgets that you add really seem to mess the phone up!
My advice is keep the phone as samsung intended it...or at least change very little. You will see far improved battery life and none of the over heating problems.
Just my opinion but its worked for me.
hpsauce37 said:
I posted on this a few days ago..
My phone got so hot that it shut itself down!
since that i have done a complete reset of the phone and started from scratch again....100% better.
The problem as i see it is with all the 'tinkering' that we users do. All the additional launchers etc and widgets that you add really seem to mess the phone up!
My advice is keep the phone as samsung intended it...or at least change very little. You will see far improved battery life and none of the over heating problems.
Just my opinion but its worked for me.
Click to expand...
Click to collapse
Find the nearest Apple store near you.
The only time i had this was when it waa both charging, in a case and playing a big game...
Im currently chatting, listening to a live stream, charging and posting this, no problem with heat at all..
Perhaps its a problem with some specific phones
Sent from my GT-I9100 using XDA Premium App
SgtDutchyNL said:
The only time i had this was when it waa both charging, in a case and playing a big game...
Im currently chatting, listening to a live stream, charging and posting this, no problem with heat at all..
Perhaps its a problem with some specific phones
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
Or with some specific games.
cmd512 said:
Find the nearest Apple store near you.
Click to expand...
Click to collapse
LMAO
Sent from my GT-I9100 using XDA Premium App
hpsauce37 said:
I posted on this a few days ago..
My phone got so hot that it shut itself down!
since that i have done a complete reset of the phone and started from scratch again....100% better.
The problem as i see it is with all the 'tinkering' that we users do. All the additional launchers etc and widgets that you add really seem to mess the phone up!
My advice is keep the phone as samsung intended it...or at least change very little. You will see far improved battery life and none of the over heating problems.
Just my opinion but its worked for me.
Click to expand...
Click to collapse
that's just not true.
Mine gets hot aswell .. it's random sometimes but usualy with playing games etc. I suspect it has something to do with the samsung drivers/software and not our tinkering.
Bugs bugs bugs...
Mine also gets fairly hot, which might be a little uncomfortable - but that's the sacrifice you make when you get such a high powered device in such a small space.
Well,amount of apps/tinkering/etc has nothing to do with the phone getting got UNLESS an installed app in messing something up.I have heard many such cases when a rogue app made the CPU run at 100% in different phones.If that's the case you have to find and remove the app.I'd suggest OS monitor for finding it.Never happened to me though!
What's more,it's normal for it to get more hot than your average phone,as it carries more power under the hood and has nothing to help it dissipate the generated heat,as it's plastic.The Desire HD does a very good job with managing heat and I have never exceeded 40 C,even when gaming with an overclock at 1.8GHz and performance governor.Not saying the DHD is better,but Samsung wouldn't have left something like this if it would damage the phone.So I tend to believe that it's designed to get hot.
Mine has overheated twice.
Both times, when trying to pair itself automatically to my car kit. The phone got really really hot (i noticed it warming my leg in my jeans pocket) and needed the battery pulling out to reset it. When it started back up, the running temp was nearly 50 degrees (in standby, it runs at about 27)
Hasn't done it since though, just keeping my eye on it!

Critical battery temperature

Hey. Does someone you know, what is the highest (read: critical) battery and HW temperature in this phone? I am a little bit scared when I'm getting even 55*C on battery when I am using it as a navigation connected to charger in a car. I know it's too high because when it's heating over 49*C it stops charging. My question is how dangerous is such high temperature for HW and Battery? Is it normal behavior?
I never had such high temperatures, and I live on a hot country (Brazil). Try to check apps running in background, or, if you are using 3G and charger, it can get really hot. But I think it's normal, since my phone reaches 45ºC while charging, and I don't use 3G.
with 3g my phone gets crazy hot. i once left it on overnight (it didnt go to sleep) and when i woke up it felt dangerously hot, musta been 50deg or something
otherwise, with wifi it just gets warm... still worrying though, considering none of my other portable devices have ever gotten this hot before... just shows where all of the battery life goes to! :S
i dont think its the battery getting hot though, it must be the cell chip. my batt temps are usually pretty low, and the batt itself doesnt seem to get hot. its just the panel above the battery that warms up
My phone got so high temperature (55*C) when I was using navigation. Moreover it was pluged to the car charger (but wasn't charging because of high temperature) and mounted to the window in hot sunny day. And I'd like to know how dangerous is such high temp. for the device.
I wonder if we have dud phones? my battery life sucks ass... bare able on wifi, but **** with 3g
Agree with scott. With prolonged use my battery doesnt heat up, just the panel above the battery (where the camera is)
And my battery life sucks too. Gotta keep it charged in the car for even short (30 min) trips with navigation
Sent from my MotoA953 using XDA App
Try checking the manual (if there is) for operating temperatures etc.
I'm not exactly sure of how it'll affect the phone but it poses health problems due to higher radiations.
Try preventing this by ensuring all other (running) apps that you don't need are closed by using a task killer and all connectivity stuffs (eg. bluetooth, data sync) ESPECIALLY THE BACKGROUND DATA if you don't need it. Also, if possible try to refrain from covering the back panel (mainly the area near the camera) and allow ventilation to let it cool so it won't overheat.
What else I do is leaving the keyboard opened so there's even more surface area for it to cool.
The problem isn't just about damage, but that you don't want to be holding hot metal.
Yes it sucks but its a price to pay for such high specs packed in such a tiny casing.
My friend who owns Samsung Galaxy II has his phone heating up even more frequently and quickly, so we're not the only ones
Its annoying because we know its avoidable and shouldnt have been allowed in the final design by motorola
I've never seen such high temperatures with my M 2.
Highest was 47ºC while charging and playing a game. It usually sits around 35-36ºC idle, and 40-42º during games.
scottyn said:
I wonder if we have dud phones? my battery life sucks ass... bare able on wifi, but **** with 3g
Click to expand...
Click to collapse
newbietown said:
And my battery life sucks too. Gotta keep it charged in the car for even short (30 min) trips with navigation
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Click to collapse
That's normal guys... Every device dying in a "few minutes" with 3G. And U know what? From my last 3 devices which I have been using to surf in the Internet with 3G (Moto RIZR Z8, Nokia N86, Moto Milestone 2), MM2 lasts the longest.
newbietown said:
Agree with scott. With prolonged use my battery doesnt heat up, just the panel above the battery (where the camera is)
Click to expand...
Click to collapse
That's right, but every app just showing the battery temperature
Damn..
Yesterday my milestone 2 became hotter as ever, just above the battery (where the camera is, like newbietown). First I turned it off, but it stayed hot even then. After I removed the battery it became cool again.
But! Now my MS2 is completely dead...
It's really not turning on again, and charging is really weird (irregular flashin led). And my warranty is void because of me installing argen2stone I guess ..
Well, just flash a stock rom and they'll never know...
My phone is not recognized on my computer using USB . Can I still use rsd lite?
First get to bootloader mode: Power + Volume Up (or down) + Camera
If battery is too low you'll need to buy a relacement or a external charger.
Sent from my Milestone 2 XDA App
Try taking it to warranty. Argen2Stone is so lightly modded, maybe they won't mind it. Anyway, you have nothing to lose now. And this really looks like a HW problem, not SW
Sent from my A953
Beginning of next week I will hand it in for warranty. I think it has something to do with the power circuit in the phone. Sometime i've used HTC chargers (1A) instead of the motorola charger (0,85A).. That could be the cause Hopefully they cannot see that.
I don't think that's a problem. I always use a Nokia charger, I find the original charger too short, the Nokia has a good lenght. And I never had problems with overheating. Also, 1A is the maximum current that the charger can provide, not the nominal [email protected] anytime
Rocking with my M2 and XDA app

Weird Issue!

My tab was sitting on my desk in sleep mode. I picked it up and tried to unlock it and it seemed frozen for a moment, then let me swipe. It seemed fine after that. A few hours later I picked it up again and it was very sluggish and the back was warm and my battery at 15%. (it was at about 50% a few hours earlier) I rebooted it and it's fine, but I am wondering what caused it to get so warm. I know that happens when it's being used a lot but it was just sitting on my desk. There were no apps running in the background. Any ideas what could have happened? I haven't installed anything new in the last few days.
Are you running stock?
djmatt604 said:
Are you running stock?
Click to expand...
Click to collapse
And we assume ICS (apart from stock)? But there are quite a few threads on the increased power-consumption on ICS (Stock and other). So might be some run-away process or service. What is the highest battery-user according to the device info? And how much? Has ICS gotten rid of the dialer goof-up for non-3G tablets?
P.S. Like the off limits (slap on the wrist) of the better half's tablet, same here :laugh:
Yes assuming ICS...my bad lol. It was more of a "tell me everything you've done lately" type of question. I have noticed increased battery consumption myself but that's why I switched ROMs today. If I lose a couple extra ticks on the battery in exchange for the performance I've gotten I can live with that
And yes I will lose whatever part of my body touches the wife's tablet. She's heard enough profanity in the last month as I got my feet wet hahaha!
Yes, stock ICS. Sorry for omitting that!
The highest battery user is the screen. I'm thinking maybe the tablet froze and I didn't notice it. Having the screen on constantly for several hours is probably not battery friendly. I'm concerned because it's still warm between the Samsung logo and the camera on the back. It's not hot or anything, just noticeably warm, and it's just sitting there charging. I'm not using it.
I have (or you can do it yourself) to delve in other threads, where they dismantle the tablet. Is it a P7500, or just a plain P7510? I thought that the 3G radio-part was about there where it still is hot (residual heat probably by now), but I can be mistaken. If this is a P7510, then I do not know what would be there at that location. It certainly is not the battery, that is much lower...
I will try and find what is about there, but other solder-happy soldiers must be able to tell you exactly what is located there.
Anybody?
BretonGirl said:
Yes, stock ICS. Sorry for omitting that!
The highest battery user is the screen. I'm thinking maybe the tablet froze and I didn't notice it. Having the screen on constantly for several hours is probably not battery friendly. I'm concerned because it's still warm between the Samsung logo and the camera on the back. It's not hot or anything, just noticeably warm, and it's just sitting there charging. I'm not using it.
Click to expand...
Click to collapse
A friend of mine had a similar problem with his galaxy s2 locking up and needing a long-press power reboot to get it working again on stock ICS 4.0.3. The culprit ended up being android os in battery stats, but the problem has not happened again yet. As for the warmth on the back of your tab, this is caused by the processor running at full speed for extended periods of time. If your screen is on, and you are interacting with it a lot, then you should expect the upper left back side of the tab to heat up and not cool down until you stop using it. This is normal... if it continues to stay hot for long periods of time after the screen is off, then you are probably not going into deep sleep mode because of a rogue app. If you are rooted, install better battery stats and CPU spy to do a little more digging. Good luck, I hope you figure it out and get your tab running the way you would like it to.
I figured out what it was. I'd seen the Ebook icon in my app tray and tapped it. It took me to the Samsung App store. I left immediately but that visit apparently installed "Samsung Push Service" which was taking 62% of my battery and causing 100% wake lock. What a POS! I uninstalled it and everything is normal again. Won't ever visit the Samsung App store again.
I froze that app. Ugly. Glad you worked it out!

Hot priv (not warm)

I know I'm not alone on this one, I have to constantly cool down, it's totally intermittent and it's scalding....I hope it will be fixed soon and not just a myth. the folks at ATT said it had something to do with being more green. I think if an app is spinning in the background, it should be told to stop....
Mine gets very warm very quickly, but hasn't (yet) gotten hot. Certainly not "uncomfortable to hold" hot, anyway.
yeahh, i just received the phone and there are a lot of downloads an updates, but the phone is really hot. with a normal charger i hane no charging at all. the drain is bigger than than the energy from the charger.
usernoob said:
I know I'm not alone on this one, I have to constantly cool down, it's totally intermittent and it's scalding....I hope it will be fixed soon and not just a myth. the folks at ATT said it had something to do with being more green. I think if an app is spinning in the background, it should be told to stop....
Click to expand...
Click to collapse
I have been told by BlackBerry tech support the heat temperature flare ups could be caused by the encryption that is being done in the background.
Mine doesn't get to hot but it does get as warm as my note 5. I purchased egrip stickers from amazon to improve the grip and it has also helped with the comfort of the amount of heat you feel while holding the device in your hand and my pocket
I found a great app called "ShutApp" It let's you shut everything down that's running in the background. I have 117, It's running so much cooler now and the battery is lasting longer.
It's still not fixed got very hot in airplane mode plugged in at 100%, it dropped to 97 still plugged in So it must be something to do with charging.. It also just comes and goes as I'm working or watching a video...but sometimes under the same load it stays cool....
12/7 3rd party Camara apps are really cooking, and with short use maybe there should be a handwarmer app (lol)
12/11 I'm sad that this is electing my future non removable battery's life! ..at 100% I reboot in airplane with no apps running in background and plugged in it returned to 99% and started baking.. this is a power problem......
Yes my BlackBerry does get hot for no reason. All my apps are shut, last night i had it in my pocket and i felt it on my leg very warm. As I'm typing this right now i also feel it in the middle back of the phone. I really hope they fix this. As for battery life i am very disappointed, I thought it was supposed to be 22 hours and my lasts like 8 to 10 hours. I even got myself a Aukey portable battery charger and Aukey quick charger, it does charge fast like 1 hour and 30 minutes but it also drains quick. Apparently what drains it the most if being connected to WiFi. Really hoping they find a root for this or fix all these problems or I'm going back to Samsung.
the last update is solved this problem?
Serious hot spots have occurred in Airplane with minimal background while just working on a pic or document.. This is a serious problem and is leaning towards being a hardware issue.. Even though it helps to run an efficient system .. IT should be able to tell whatever when it is getting that hot to cool off....
I will hope to exchange it a third time But not until I know the replacement they give me isn't nt just another of the same....
Re: Priv Hot Battery
usernoob said:
I know I'm not alone on this one, I have to constantly cool down, it's totally intermittent and it's scalding....I hope it will be fixed soon and not just a myth. the folks at ATT said it had something to do with being more green. I think if an app is spinning in the background, it should be told to stop....
Click to expand...
Click to collapse
The priv is the very first of its kind but here are some things you can do to cool it down
1: Turn The Brightness Down- most phones tend to heat up because the battry is pushing alot of power to the screen to make it brighter
2:Android: The Priv is the first blackberry not running the original OS; It's now running on Android Marshmallow which has a lot of animations and alot mor functionality so this could also cause it.
3: Replace The Battery: Yes I know it's the battery that came with the phone. I have 3 friends with the priv and when 2 of them went from stock battery to generic there phone did not turn into a brick out of the oven!
I hope this helped!
~ Jake The Steak
i had this issue for the first 2-3 days of getting the phone. disabled a few of the 'neat' settings ( wake on pick up, bb keyboard predictions, using swiftkey instead of bb keyboard, maybe a few others ) and since then it doesnt even get warm, like at all.. had it on for 20 minutes playing a youtube video and the phone was still cool...
Bought mine 2 weeks ago, it does get pretty hot (to the point of not touching it sometimes).
Only when I play games or snapchat, browsing internet doesn't heat it too much.
Especially when charging, so I try not to use it as much.
But the battery drops the same so it doesn't matter much, I just let it cool down and continue
Are you on any marshmallow rom ?
I haven't had any problems while using marshmallow.

Overheating

So following on from the issues with the Note this may seem like I am trolling but I am not.
I and my son have new S7 (not the Edge) on Vodafone. It is the best phone I have ever had both in terms of software and size. Fits my hand perfectly.
My son thinks the same however he is reporting that when the battery gets to about 30% the consumption/drain seems to get faster and the handset heats up. Typically around 1600 each day.
I don't get that as an issue. Occassionally the handset has heated up a bit but typically after heavy web use.
I have suggested he makes sure it is backing up and do a factory reset.
Any thoughts as to what may be causing the problem?
Navrig said:
So following on from the issues with the Note this may seem like I am trolling but I am not.
I and my son have new S7 (not the Edge) on Vodafone. It is the best phone I have ever had both in terms of software and size. Fits my hand perfectly.
My son thinks the same however he is reporting that when the battery gets to about 30% the consumption/drain seems to get faster and the handset heats up. Typically around 1600 each day.
I don't get that as an issue. Occassionally the handset has heated up a bit but typically after heavy web use.
I have suggested he makes sure it is backing up and do a factory reset.
Any thoughts as to what may be causing the problem?
Click to expand...
Click to collapse
Without knowing what apps he's got running it's not possible to know what's causing the issue. On a side note, you should top off your battery whenever you can. Letting the battery drain very low and then charging back to 100% will decrease the performance of the battery. Is he playing Pokemon perhaps? Cheers!
dynospectrum said:
Without knowing what apps he's got running it's not possible to know what's causing the issue. On a side note, you should top off your battery whenever you can. Letting the battery drain very low and then charging back to 100% will decrease the performance of the battery. Is he playing Pokemon perhaps? Cheers!
Click to expand...
Click to collapse
Thanks Dyno.
AS far as I know he is either in class at university or in the library. He will be using wi-fi to look up technical references as well as social media. I don't think it is heavy use as he should be studying!! He wont be playing Pokemon.
I'll pass on your comments/advice on the battery.
Try downloading malwarebytes from playstore! I just installed a rogue apk file called UPSM manager v.3.5 from apkfiles.com. Phone started to heat up without any usage . Checked GSam and my temps were at 36-37 c! And also warm to touch so i scanned my device with malwarebytes. Removed the malware and now my phone is back to 31-34c .Cool to touch ! Another advice is to disable fast charging and charge it whenever you can just like navrig said. Don't let it drain to below 40%. Once or twice won't hurt in a week but every day is going to wear and tear the battery life cycle. Hope this helps!
Navrig said:
So following on from the issues with the Note this may seem like I am trolling but I am not.
Any thoughts as to what may be causing the problem?
Click to expand...
Click to collapse
I'm having this problem also.

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