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FIX for S6 getting stupid hot (85 degrees celsius)?

So, i very well may have a defective unit, my galaxy s6 gets very hot very fast. A few times a day i reach 85 degrees celsius and the phone shuts down and restarts. I think that therm throttling isn't working anymore on my S6. The bad part is that my warranty is void (flashed custom rom from day one). I tried every fix possible (clear cache, safe mode, factory reset, different roms, etc) but no luck. So, to protect my phone i decided i do the unthinkable: undervolt and underclock my cpu. Or enable some sort of throttling for my CPU. I am using the latest version of XtreStoLite ROM, with unified kernel. I need help! HOW TO underclok and undervolt my cpu? Do i need another kernel? Do i need another rom? Is there any secret menu to enable thermal throttling like in LG phones? Please someone give me some info on the matter...

cornel.atomei said:
So, i very well may have a defective unit, my galaxy s6 gets very hot very fast. A few times a day i reach 85 degrees celsius and the phone shuts down and restarts. I think that therm throttling isn't working anymore on my S6. The bad part is that my warranty is void (flashed custom rom from day one). I tried every fix possible (clear cache, safe mode, factory reset, different roms, etc) but no luck. So, to protect my phone i decided i do the unthinkable: undervolt and underclock my cpu. Or enable some sort of throttling for my CPU. I am using the latest version of XtreStoLite ROM, with unified kernel. I need help! HOW TO underclok and undervolt my cpu? Do i need another kernel? Do i need another rom? Is there any secret menu to enable thermal throttling like in LG phones? Please someone give me some info on the matter...
Click to expand...
Click to collapse
Undervolt and underclock are coming from the kernel, so you need a different one, if now it is not avaialble.
On the other hand 85C is too much. Is your battery drain high as well? Maybe some app is using the CPU to its maximum thus causing this issue.

My battery is just fine. Not draining at all. My cpu stays at 40 degrees when light use, like menu scrolling, browsing web, etc. It goes to 55 when in youtube, light games, camera... And for example it goes way up to 85 and reset when installing 2-3 apps at once from market or just resetting the phone, right after boot, my cpu goes to 75 degrees. Can you please point me to a kernel that DOES support underclock and undervoltage?

cornel.atomei said:
My battery is just fine. Not draining at all. My cpu stays at 40 degrees when light use, like menu scrolling, browsing web, etc. It goes to 55 when in youtube, light games, camera... And for example it goes way up to 85 and reset when installing 2-3 apps at once from market or just resetting the phone, right after boot, my cpu goes to 75 degrees. Can you please point me to a kernel that DOES support underclock and undervoltage?
Click to expand...
Click to collapse
Vindicator
or
Arter97's kernel
It's hard to decide which is "better" - both working great. However arter is replacing your GPU drivers for the ones from the Note5.
I am currently using it and no issues.
For tweaking use synapse or kernel auditor

do the 2 kernels work with XtreStoLite rom? (5.1.1)

cornel.atomei said:
do the 2 kernels work with XtreStoLite rom? (5.1.1)
Click to expand...
Click to collapse
Yes.

Overheating

Hi, 3 day ago I recieved my Mi4c (3gb) and just after couple of minutes surfing on the net I realized, that the top of the phone is really hot (the bottom was normal). The next day I tried it with game - after just one or two rounds (about 2 minutes) phone got hot again - again at the same area. I downloaded some app and I looked at the temperature after running the game - it showed even 55 degrees Celsia. Is it faulty piece or is it just software issue, which can be fixed by different ROM ?

Under load, the SD808 can get pretty warm.
Add to that the fact that MIUI (in all of its various forms) is a steaming, overheated pile of rhinoceros feces and you have a terrible combination just asking for heating problems.
TS CM13 does a pretty good job of mitigating the software issues that lead to heating.
The phone will always get warm when playing moderately intensive games or when used in direct sunlight on warm (30c+) days.

I found that the miui versions some vendros provide are manipulated or corrupted by vendors,
I suggest you check if your bootloader is unlocked, install a recovery, do a total format (not a factory reset, a full system format from recovery) and install the latest miui,
I had overheating issues and the phone would eat the battery away in less then 12 hours, i did this and im currently going on 39h standby and around 1 - 1.5 hours screen time and i still have 34% of the battery life.
Clean house, start from zero and you might be surprised.

Just installed MIUI 7.1.6.0 Global stable from xiaomi.eu and I like it more tham MIUI 8 already. Plus, phone seems to be a little cooler. Snapdragon 808 is still a hot chip though, so don't expect miracles.
Switched from MIUI 8 because of heat and battery life issues.

I tested different rooms and every room has overheating. The only difference is the time the systems downclock the CPU.
In cm13 I changed the values so it doesn't close the big cores so fast.
But the big cores are still the most time off.
Normally my Temps are between 40 and 60 °C
And that's bad.
Miui doesn't change anything.. Only the time of throttling.
I don't need a phone that throttles itself when turned on.
When I'm home I'll try to open the back cover and take a look.
Maybe I can hard mod it in some way.

I'm facing the same problems here.
I use dual Sim, so I thought this could be the signal usage. But my battery is draining faster and faster. Some times even dropping from 14% to 10% in 1 sec!
When using wifi, the cpu reaches over 50ºC (currently 57-59ºC). MIUI 8 didn't help much.
I'm using my phone a lot, 3G and screen on for long time, but it's dropping from 100 to 15% in less than 7 hours...
Is there anything that I could do?

Install MIUI 7.1.6.0, temps and battery are better, or go Apollo the way and flash CM13 or Slim

I have over-heating problem too. Specially by keeping screen on for several minutes. I'm on miui 8 by xiaomi.edu

The overheating is caused by a ****ty rom some vendors use,
Install the latest recovery, and do a full advance wipe (everything except OTG USB), then do the format,
DO NOT REBOOT the phone, connect it to the PC and copy over the latest miui weekly (i used 6.9.1) and flash it, then see if it keeps overheating.
Apparently some of the malware some vendors install are hard to get rid of, i had weekly, monthly, slim6, Teamsuperluminal and Omni rom installed, and they all showed the same issue. it wasnt until i did this "sanitation" process i managed to get rid of the heat issue.

kar5ten said:
When I'm home I'll try to open the back cover and take a look.
Maybe I can hard mod it in some way.
Click to expand...
Click to collapse
You found some way to hard mod it ? =) The snapdragon 808 would be very powerful if there aren´t that overheats.
Making some holes in the back cover (get out hot air) or give more space (case is extremly tightly built) ? A heat pipe (passive cooling)?

Things are a lot better using an undervolted kernel. Built one from kuma sources (not for MIUI), I could share if you want.

Danny94 said:
You found some way to hard mod it ? =) The snapdragon 808 would be very powerful if there aren´t that overheats.
Making some holes in the back cover (get out hot air) or give more space (case is extremly tightly built) ? A heat pipe (passive cooling)?
Click to expand...
Click to collapse
nice idea with passive cooling
i glued my nhd 14 to the back that helped
no serious i dont have any clue to make the phone cooler with hardware modifications.
without the backcover it isnt cooler. the difference isnt noticable.
i would say how the cpu is build into the phone is wrong.
for me the phone isnt worth it anymore. im moving to a BQ or the HTC10.
why should i use a phone that i have to downclock to a fraction of its performance ?
or i use normally and get throttled after 20 minutes?
and it doesnt matter which os i use any miui or cm version suffers from overheating.
so i think ether xiaomi make mistakes while building the phone or it is just the bad 800 series.
but looking at the lg g4 the picture is the same. so qualcomm is to blame for it.
sorry for this but the only solution is to use a fan on the back OR the better solution buy a better phone ;(
edit:still finding grammar fails

For anyone willing to try this is an undervolted kernel based on kuma's sources and a modified msm8992-regulator.dtsi with lower ceil voltages.
Tested only on CM13 but should work for other ROMs based on CM13. It can make your phone unstable (freezes, crashes), so before you try either keep a backup of your current kernel or simply boot (don't flash!) the kernel to ensure that everything works normally:
Code:
fastboot boot undervoltedk.img

@Ydraulikos
im already using a kernel from kuma (Resurrection Rom) and yeah its very great, less overheating. The Rom itself is slim for less heating too.
But its overheating though while playing 3d games for a longer time.
@kar5ten
..nhd 14.. that would look funny xD.
Yeah the problem is the cpu. Snapdragon 808 and 810 suffering from overheating, 810 more.
But xiaomi could handle this too. Not use this cpu or built better cooling system, instead make it as thin. The most temperatures i have is on the top right. If they used passive cooling like pipe heats for distribute the heat, we don´t have this problem or rather less overheating.

@Ydraulikos thanks i will try this.
@Danny94
i made another test.
i use resurrection rom 5.7.1 with oc kernel 1.12 (intelliactive gov.) custom temp. throttle at 75 C
i opened the back and added aluminium foil .
10 layers on the upper side where the cpu sits and 6 layers above the battery and the cpu. they both are connected.
now i run antutu 3-4 times and i got these results
75899-74012-70371-68155
with max temp of 53 C after those 4 runs.
the idle temps are now at 30 -35 C most time
but i only tested it for 2 hours

@kar5ten
oh nice that sounds like a good idee! And withouth foil wich results you get, antutu - temps ?
The Alumiunium foil could take the heat from the cpu and distribute it over the device, for better result thermal paste as connection between cpu and foil could help.
Maybe with another material (foil) you could improve it as well. The best result you would get maybe if the backcover consists of metal, this way you could get the heat out of the phone, air cools metal. (problems.: back cover can get hot, you can heat back cover with hands[maybe a case])
Care about that foil doesn´t heat up the battery and the metal can disturb radio signals (gps wifi mobile data).
Could you share a picture as well of your modified version here in the forum, maybe one too please how it looks inside. At the moment i don´t have a plan how to open the back cover. =)

I will post some pictures but next weekend. Before I open it again I want to test it.
I don't know the exact results from antutu before I modded it.
First 75k
2nd 60k
3rd 55 k
At the moment I didn't noticed any signal drop or something.

kar5ten said:
I will post some pictures but next weekend. Before I open it again I want to test it.
I don't know the exact results from antutu before I modded it.
First 75k
2nd 60k
3rd 55 k
At the moment I didn't noticed any signal drop or something.
Click to expand...
Click to collapse
Hi,
Did you have the opportunity to take some pictures of your mi4c modding?
would be also great to have a slight bigger case it probably help with the overheating.
best regards,
John

@patadas I get a new case this weekend. Then I will take some photos.
But the problem is to open the phone

kar5ten said:
@patadas I get a new case this weekend. Then I will take some photos.
But the problem is to open the phone
Click to expand...
Click to collapse
To open the case i have found a video, see the video and tell me if the video does help in anything?
by the way : Xiaomi Mi4c Teardown
http://www.myfixguide.com/manual/xiaomi-mi4c-teardown/

Phone heating on all ROMs

OK, I ran into this issue about 5 days ago. No matter what ROM I install, my phone constantly heats up within 15-20 mins of casual usage. I don't even play games on my phone. I tried N ROMs and MM ROMs too, no matter what ROM I install, phone just heats up. I'm attaching a screenshot from CPU-Z app (which I used to monitor the temperature). Are those readings OK, or is there something wrong with my phone?

My phone's temperatures are usually similar to yours and I thought this was normal. In case it's not I'd like to see a solution to this as well.
Btw, do you have any custom kernels? Agni made my phone way too hot..

mike.... said:
My phone's temperatures are usually similar to yours and I thought this was normal. In case it's not I'd like to see a solution to this as well.
Btw, do you have any custom kernels? Agni made my phone way too hot..
Click to expand...
Click to collapse
I don't really go for custom kernels unless I'm testing one. I stick to the kernel that comes with the ROM.

Check kernel adiutor if your frequenties are peaking constantly

HelpMeruth said:
Check kernel adiutor if your frequenties are peaking constantly
Click to expand...
Click to collapse
I have checked. They are mostly around 800 MHz mark. And 45% of the time in deep sleep or 400 MHz.

Also I want to whether surrounding temperature can affect the values? Right now the temperature at my home city is averaging around 34-35°C. Would that be the cause?

HelpMeruth said:
Check kernel adiutor if your frequenties are peaking constantly
Click to expand...
Click to collapse
Not to hijack the thread but I have experienced all the cores being on max. frequency. I noticed this when my phone started warming up even being idle.
I saw this behavior for a few times in RR with both Optimus and Firekernel (Optimus had optimus set as its governor and Firekernel had darkness), however never encountered it in Ultradevs (with both chill and darkness).
This was a couple of months ago, and it hasn't happened again yet. However I am not sure if this was related to kernel because sometimes force stopping random applications such as greenify or nova launcher made the frequency scale down back to 400 (efficiency profile). Unfortunately I didn't get a hold on what was causing this, but I suspect some background user application was the culprit.
Broadcasted from Zeta Reticuli

Gravemind2015 said:
Not to hijack the thread but I have experienced all the cores being on max. frequency. I noticed this when my phone started warming up even being idle.
I saw this behavior for a few times in RR with both Optimus and Firekernel (Optimus had optimus set as its governor and Firekernel had darkness), however never encountered it in Ultradevs (with both chill and darkness).
This was a couple of months ago, and it hasn't happened again yet. However I am not sure if this was related to kernel because sometimes force stopping random applications such as greenify or nova launcher made the frequency scale down back to 400 (efficiency profile). Unfortunately I didn't get a hold on what was causing this, but I suspect some background user application was the culprit.
Broadcasted from Zeta Reticuli
Click to expand...
Click to collapse
I also faced this issue first time when I flashed RR 5.8.2, no custom kernel used. And now its following on every ROM I install. I even tried custom kernels, different gapps packages but none seem to work. The phone heats up while charging and while doing simple things like using WhatsApp, sending emails, browsing through XDA. Also kernel adiutor is showing that GPU temperature is always above 43°C.

adityak1303 said:
I also faced this issue first time when I flashed RR 5.8.2, no custom kernel used. And now its following on every ROM I install. I even tried custom kernels, different gapps packages but none seem to work. The phone heats up while charging and while doing simple things like using WhatsApp, sending emails, browsing through XDA. Also kernel adiutor is showing that GPU temperature is always above 43°C.
Click to expand...
Click to collapse
Did you restore apps through some backup program such as Titanium backup? In my case, I used to use it and it might be the reason the problem was popping up everywhere.
If not, and if the phone still heats up even in clean state (after a fresh custom/stock rom install), then maybe some hardware issue could be the reason.
My Cpu-z reports battery being at 37° discharging and the sensor0 to sensor5 show 45-51°c although the phone feels way cooler than that.
Broadcasted from Zeta Reticuli

Gravemind2015 said:
Did you restore apps through some backup program such as Titanium backup? In my case, I used to use it and it might be the reason the problem was popping up everywhere.
If not, and if the phone still heats up even in clean state (after a fresh custom/stock rom install), then maybe some hardware issue could be the reason.
My Cpu-z reports battery being at 37° discharging and the sensor0 to sensor5 show 45-51°c although the phone feels way cooler than that.
Broadcasted from Zeta Reticuli
Click to expand...
Click to collapse
I clean installed all the ROMs. Still the issue persists. I haven't tried stock ROM yet. I'll try that and report back.

adityak1303 said:
I clean installed all the ROMs. Still the issue persists. I haven't tried stock ROM yet. I'll try that and report back.
Click to expand...
Click to collapse
yeah, thinking you may have to flash stock, not restore it via twrp. I know it's a pain but it would give you a good reference point.

Well I can't flash stock ROM for the next 2 days. So let me ask this : Is a temperature of 37-42°C for battery and CPU harmful for the phone? Or I shouldn't worry about it?

107F? I shouldn't think so...
"Right now the temperature at my home city is averaging around 34-35°C. Would that be the cause? " It wouldn't help...
I am 26 ambient and my phone temps run 36-36 or so.

Ambient temp does play a factor. If the phone is Almost as hot as the ambient it's hard to transfer the phone heat to the ambient surrounding.
My freqs and temps in attachment. I use aosp-caf with prepackaged kernel(ud i think) with some custom settings.
Ambient temp is around 20 C inside and 10 C outside

HelpMeruth said:
Ambient temp does play a factor. If the phone is Almost as hot as the ambient it's hard to transfer the phone heat to the ambient surrounding.
My freqs and temps in attachment. I use aosp-caf with prepackaged kernel(ud i think) with some custom settings.
Ambient temp is around 20 C inside and 10 C outside
Click to expand...
Click to collapse
Thanks a lot. Even when my phone was not heating up, the CPU and battery never got cooler 31°C. And GPU was around 38°C. And even after intensive use, CPU never got hotter than 37°C.
Now my phone's CPU and battery are around 35°C mark and GPU around 43°C. And during use CPU reaches 43°C mark and GPU about 52°C. Can these temperatures cause any harm to the device?

adityak1303 said:
Thanks a lot. Even when my phone was not heating up, the CPU and battery never got cooler 31°C. And GPU was around 38°C. And even after intensive use, CPU never got hotter than 37°C.
Now my phone's CPU and battery are around 35°C mark and GPU around 43°C. And during use CPU reaches 43°C mark and GPU about 52°C. Can these temperatures cause any harm to the device?
Click to expand...
Click to collapse
Don't quote me but I think it's okay. Motorola should have tested it on much higher temps. So just go with it if it dies you maybe have warranty.

adityak1303 said:
I clean installed all the ROMs. Still the issue persists. I haven't tried stock ROM yet. I'll try that and report back.
Click to expand...
Click to collapse
I had the same issue . with few ROMS . My device temperature went around 70C on oen ROM. I am usimng Osprey 1GB RAM
I have not faced any issues since I am using Nano Gapps. Previousely I used Mini gapps and that was causing the issue . Depend whar Mobile you use 1GB RAM or 2GB RAM. Also it is better to clear cache after every install
Also I use following settings to make suer it doe snot get hot.
-Ambient Display Off
-Adaptive Display Off
-Try not to block any apps from sending notoification as I had issues where battery draining and mobiel heating up by doing so
-Keep brightness to minimum
and since I am using this I had not any issues with heating

chungomungo1 said:
I had the same issue . with few ROMS . My device temperature went around 70C on oen ROM. I am usimng Osprey 1GB RAM
I have not faced any issues since I am using Nano Gapps. Previousely I used Mini gapps and that was causing the issue . Depend whar Mobile you use 1GB RAM or 2GB RAM. Also it is better to clear cache after every install
Also I use following settings to make suer it doe snot get hot.
-Ambient Display Off
-Adaptive Display Off
-Try not to block any apps from sending notoification as I had issues where battery draining and mobiel heating up by doing so
-Keep brightness to minimum
and since I am using this I had not any issues with heating
Click to expand...
Click to collapse
Thanks for replying but its not the issue of any ROM. I flashed stock and the issue still persisted. So I literally contacted everyone I know of who owns an unrooted osprey in my city and asked them about this.
Turns out everyone's phone is getting hotter a lot faster than before. Even went into a Moto Service Centre, they said its fine for the phone to heat up in such temperatures.
The issue is ambient heat. As you might have seen in my previous post, I mentioned that the temperature in my city is averaging around 35-36°C (Today it reached 40°C), the phone just doesn't cool down enough after using it. So when I started to use it again, it heated up.
Thanks everyone for replying.

adityak1303 said:
Thanks for replying but its not the issue of any ROM. I flashed stock and the issue still persisted. So I literally contacted everyone I know of who owns an unrooted osprey in my city and asked them about this.
Turns out everyone's phone is getting hotter a lot faster than before. Even went into a Moto Service Centre, they said its fine for the phone to heat up in such temperatures.
The issue is ambient heat. As you might have seen in my previous post, I mentioned that the temperature in my city is averaging around 35-36°C (Today it reached 40°C), the phone just doesn't cool down enough after using it. So when I started to use it again, it heated up.
Thanks everyone for replying.
Click to expand...
Click to collapse
It might be issue with India summers :laugh: mine is also getting hot from past few days.

libert19 said:
It might be issue with India summers :laugh: mine is also getting hot from past few days.
Click to expand...
Click to collapse
That's what I figured. Thanks.

CPU overheating?

About 2 weeks ago, my D2303 starts feeling warm (~40-45℃) after a short period of light usage (e.g. watch YouTube videos using official app, browse web), even in air conditioned indoors (so that excludes the possibility of heat from surroundings)
I tried rebooting the phone into safe mode and it does not overheating that much (still feels a little bit warm, but I think that may be normal) when using it for light work mentioned above.
Phone is running stock Android 5.1.1 with no root and kernel tweaks,CPU usage seems fluctuating a lot but none apps seems to have using that much CPU (all cores @ 100%)
What are the possible reasons behind this? Should I just buy a newer phone?

sosad9556 said:
About 2 weeks ago, my D2303 starts feeling warm (~40-45℃) after a short period of light usage (e.g. watch YouTube videos using official app, browse web), even in air conditioned indoors (so that excludes the possibility of heat from surroundings)
I tried rebooting the phone into safe mode and it does not overheating that much (still feels a little bit warm, but I think that may be normal) when using it for light work mentioned above.
Phone is running stock Android 5.1.1 with no root and kernel tweaks,CPU usage seems fluctuating a lot but none apps seems to have using that much CPU (all cores @ 100%)
What are the possible reasons behind this? Should I just buy a newer phone?
Click to expand...
Click to collapse
all the sony m2 have the same over heating problem.but you can have another ROM that have no over heating problem. and with a good performance better than the stock 5.1
you can get the RR v6.1 its a oreo android system from here https://forum.xda-developers.com/xperia-m2/orig-development/rom-resurrection-remix-v6-1-0-t3810937
read the instruction how to flash this ROM.you must unlock your phone bootloader.
after you flash this ROM you must replace these files from this post https://forum.xda-developers.com/showpost.php?p=77844093&postcount=120
if you replace these files you will have a good performance and ( no over heating ) no laging too

hooooossamq said:
all the sony m2 have the same over heating problem.but you can have another ROM that have no over heating problem. and with a good performance better than the stock 5.1
you can get the RR v6.1 its a oreo android system from here https://forum.xda-developers.com/xperia-m2/orig-development/rom-resurrection-remix-v6-1-0-t3810937
read the instruction how to flash this ROM.you must unlock your phone bootloader.
after you flash this ROM you must replace these files from this post https://forum.xda-developers.com/showpost.php?p=77844093&postcount=120
if you replace these files you will have a good performance and ( no over heating ) no laging too
Click to expand...
Click to collapse
all the sony m2 does NOT have the same over heating problem. i used this phone for full 4 years and only time i experienced overheating was in summer days. i suggest OP to format the phone and if it doesn't help, you can try one of the 7.x roms

OnePlus 8t - Temperatures

Recently purchased my op8t. First one had to be returned as ran between 35C-42C . My " new " idles at 29C. Underload goes to 35C, warp charging with case on hits 40C. At 41C I've received warning messages ( running OOS stock ) .
The question is , What temps is your Oneplus8t running at?
If it's warp charging, underload or even has a phone case this may impact .

I have the same problem of temperature. The max is 62°C but the boutik said that it's not normal but One Plus don't change for this problem. I think it's dangerous but I don't have warning messages

Forgive my terrible English first (Translate.Google.es)
I am going to tell you about my experience and illustrate with images and screenshots with different applications.
In my personal case ... I have been with this problem for a long time and from what I have been able to read through the different forums and analyze devices, of the people who publish this bug and I think it generally lies in the 8T model (12Gb Ram - 256GB Storage).
I have tried eliminating applications in the background, Lowering the screen frequency, controlling DEP Sleep, not using the RAM Boost option etc. etc.
I don't have games on my phone, (I don't like it) but it's abysmal when I'm using various applications, reading online and talking on WhatsApp, in a space of just 6 minutes, I have to leave the phone many times because it gives me rage that this so hot and force it.
By the way .. I use the factory Rom without root or anything weird.
Phone Heating (Tº)​

zZarZiLLoSs said:
i think it generally lies in the 8T model (12Gb Ram - 256GB Storage).
Click to expand...
Click to collapse
I believe so as well.
Lately I have been running custom ROMs with kernel , temp is much lower ( 29c-33c ) . Although battery only last a day.
While running stock OOS. When my device would surpass 41c , a warning was given ( I'll post ) .
This is my second 8t and it works much better than the first . if you guys have that option, definitely go with it .
Also try resetting battery stats