[Q] I want to fix the cooling issues with my Galaxy Nexus - Samsung Galaxy Nexus

Basically I've had a Sprint Galaxy Nexus since it launched and I've been plagued with heat issues under even light load, but under heavy load its so bad that it is thermal throttling about 90% of the time after only 2 minutes of use.
And by that I mean it is running at 65c after less than 2 minutes of any 3D game, where it begins thermal throttling to control the temperature, and every game becomes unplayable. The device can easily heat to 60c by simply scrolling a webpage but 65c is the threshold where the device is simply unusable. I know we should expect some heat due to passive cooling rather than active cooling, but in this state, my phone is only good for email and music.
So I'm ready to take it into my own hands and modify my phone. I have no idea what type of heatsink is in this thing as I have not taken it apart yet. I am hoping the issue is simply that the heatsink didn't have proper thermal compound on it and I can just treat it like a PC, but if thats not the problem, I'm wondering if this is going to be beyond my ability.
Are there improved heatsinks for phones on the market? I don't even know where to start

ExEvolution said:
Basically I've had a Sprint Galaxy Nexus since it launched and I've been plagued with heat issues under even light load, but under heavy load its so bad that it is thermal throttling about 90% of the time after only 2 minutes of use.
And by that I mean it is running at 65c after less than 2 minutes of any 3D game, where it begins thermal throttling to control the temperature, and every game becomes unplayable. The device can easily heat to 60c by simply scrolling a webpage but 65c is the threshold where the device is simply unusable. I know we should expect some heat due to passive cooling rather than active cooling, but in this state, my phone is only good for email and music.
So I'm ready to take it into my own hands and modify my phone. I have no idea what type of heatsink is in this thing as I have not taken it apart yet. I am hoping the issue is simply that the heatsink didn't have proper thermal compound on it and I can just treat it like a PC, but if thats not the problem, I'm wondering if this is going to be beyond my ability.
Are there improved heatsinks for phones on the market? I don't even know where to start
Click to expand...
Click to collapse
I'm pretty sure smartphones especially this phone don't have heatsinks lol
If you're going to modify, just try out some kernels. Most, if not all custom kernels have Smartreflex control to calculate how much voltage the CPU needs in order to run a certain frequency at the lowest possible stable voltage. Undervolting will help some heating issues.
Remember, this phone can take heat up to 100+ Celsius before needing to reboot automatically to cool down. And the TI-OMAP is not the most heat efficient processor to begin with. It is from 2011.

Really disappointed with under volting after spending 4 hours rooting my device and putting paranoid android my temps have only gotten worse. 75c after 3 minutes of a game

ExEvolution said:
Really disappointed with under volting after spending 4 hours rooting my device and putting paranoid android my temps have only gotten worse. 75c after 3 minutes of a game
Click to expand...
Click to collapse
what are your values? here are mine:
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Feimitsu said:
what are your values? here are mine:
Click to expand...
Click to collapse
I think his problem is the hardware itself. He said this was a problem see he got the phone from launch. I'm scratching my head as to why he still kept the phone and didn't have it replaced. My phone runs around 55 Celsius on higher load so I think the phone's cooling isn't working right and he should have gotten a replacement.

DroidOnRoids said:
I think his problem is the hardware itself. He said this was a problem see he got the phone from launch. I'm scratching my head as to why he still kept the phone and didn't have it replaced. My phone runs around 55 Celsius on higher load so I think the phone's cooling isn't working right and he should have gotten a replacement.
Click to expand...
Click to collapse
Actually it depends mine, with a TPU cover and 35 degrees outside, heats up pretty quickly. Right now i'm indoor with air conditioned, Gnex undervolted and fixed at 350MHz, only playing some music + usb charging, and CPU temp hovers around 41C. I'll try to play with it once at home and see if the undervolt actually helped.
Also noticed that some well programmed games (such as Mini Motor Racing), despite the great smooth graphic, they heat up the phone very little. On the other hand, simple card games made my Gnex almost untouchable, go figure.

Here. Also attached is the temperature reading from TempMonitor right after closing the game in the top left

Ok so after being completely unimpressed with paranoid android, I'm torn on which rom I should try next. I had no data on PA but got that fixed thanks to a topic on here
Feimitsu, which kernel are you running? I'm using what I guess is franco kernel that came with PA

ExEvolution said:
Ok so after being completely unimpressed with paranoid android, I'm torn on which rom I should try next. I had no data on PA but got that fixed thanks to a topic on here
Feimitsu, which kernel are you running? I'm using what I guess is franco kernel that came with PA
Click to expand...
Click to collapse
I'm on A.S.K.P. and my gnex is much cooler...
Sent from my Nexus 10 using XDA Premium HD app

ExEvolution said:
Basically I've had a Sprint Galaxy Nexus since it launched and I've been plagued with heat issues under even light load, but under heavy load its so bad that it is thermal throttling about 90% of the time after only 2 minutes of use.
And by that I mean it is running at 65c after less than 2 minutes of any 3D game, where it begins thermal throttling to control the temperature, and every game becomes unplayable. The device can easily heat to 60c by simply scrolling a webpage but 65c is the threshold where the device is simply unusable. I know we should expect some heat due to passive cooling rather than active cooling, but in this state, my phone is only good for email and music.
So I'm ready to take it into my own hands and modify my phone. I have no idea what type of heatsink is in this thing as I have not taken it apart yet. I am hoping the issue is simply that the heatsink didn't have proper thermal compound on it and I can just treat it like a PC, but if thats not the problem, I'm wondering if this is going to be beyond my ability.
Are there improved heatsinks for phones on the market? I don't even know where to start
Click to expand...
Click to collapse
What is the average temperature in your country ? Because 60 degrees while scrolling a webpage is impossible for me to recreate. These temperatures you are having is not strange when the average ambient temperature is around 30 degrees. If that's not the case then try Slimbean alpha 3.1 which comes with LeanKernel 8.0. Make a full wipe if possible !

DroidOnRoids said:
I think his problem is the hardware itself. He said this was a problem see he got the phone from launch. I'm scratching my head as to why he still kept the phone and didn't have it replaced. My phone runs around 55 Celsius on higher load so I think the phone's cooling isn't working right and he should have gotten a replacement.
Click to expand...
Click to collapse
Zanera said:
What is the average temperature in your country ? Because 60 degrees while scrolling a webpage is impossible for me to recreate. These temperatures you are having is not strange when the average ambient temperature is around 30 degrees. If that's not the case then try Slimbean alpha 3.1 which comes with LeanKernel 8.0. Make a full wipe if possible !
Click to expand...
Click to collapse
I'd say the average outdoor temperatures are around 75f or 24c in the summer,

Related

Overheating problem

Hello,
I recently noticed that the phone is overheating after a prolonged use, especially during a HD game like dungeons defenders). So, the phone is quickly burning and unusable.
Maybe someone else has this problem ?
Thanks
Sent from my HTC One X using XDA
Tolcantor said:
Hello,
I recently noticed that the phone is overheating after a prolonged use, especially during a HD game like dungeons defenders). So, the phone is quickly burning and unusable.
Maybe someone else has this problem ?
Thanks
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
Is the game performance being interfered by it?
Tolcantor said:
Thanks
Click to expand...
Click to collapse
Why the winking smiley? Is this a joke..?
wilkomints said:
Why the winking smiley? Is this a joke..?
Click to expand...
Click to collapse
Paranoid much?
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Zinu said:
Paranoid much?
Click to expand...
Click to collapse
Paranoid? Not really, no. Just found it odd that someone would ask a fairly normal question and then wink at the end. It's like asking someone if they'll fix your car and then winking at them - they'd be wondering whether you meant it as some sort of weird euphemism!
wilkomints said:
hey'd be wondering whether you meant it as some sort of weird euphemism!
Click to expand...
Click to collapse
Is your phone overheating?
All phones heat up a bit when gaming, especially these newer 3D games. Does it overheat? No. If it did, trust me you'd know lol.
djolebih said:
All phones heat up a bit when gaming, especially these newer 3D games. Does it overheat? No. If it did, trust me you'd know lol.
Click to expand...
Click to collapse
If the heating interferes with the performance i'd call it overheating.. lets let him answer that.
eeeeeee said:
Is the game performance being interfered by it?
Click to expand...
Click to collapse
No, the game runs fast in high quality, even if the phone is overheating.
But, the battery's temperature increases to 55°C.
My fingers burn when I'm playing a game :'(
PS : Idle temperature is 30-35°C.
Tolcantor said:
No, the game runs fast in high quality, even if the phone is overheating.
But, the battery's temperature increases to 55°C.
My fingers burn when I'm playing a game :'(
PS : Idle temperature is 30-35°C.
Click to expand...
Click to collapse
55?
I would go ask for a replacement
eeeeeee said:
55?
I would go ask for a replacement
Click to expand...
Click to collapse
You're probably right, but the phone is normally not released yet
But, I will ask for a replacement next week.
Apparently, it's not an isolate case : i saw on french forums that other people have the same problem.
We'll see next week if it's a problem appeared just on a few series, or not, when the phone will be sold in other countries...
funny thing, i heard One S is overheating as well
This doesn't sound like a reasonable complaint!! Its a full kitchen; a monster phone with a monster SoC; 4 full-speed cores + 12 GPU cores. Of course it'll heat up if you light it all up! LOL!
My advice is just don't push the performance envelope while you're charging the phone. The combined heat from the battery + the SoC can create some unpredictable results. I killed an HTC Diamond, a Sensation, and my HD2 screen TWICE doing just that (gaming hard while charging and once running IGo GPS for 4 hours while charging).... the end result is invariably unhappy
shirreer said:
This doesn't sound like a reasonable complaint!! Its a full kitchen; a monster phone with a monster SoC; 4 full-speed cores + 12 GPU cores. Of course it'll heat up if you light it all up! LOL!
My advice is just don't push the performance envelope while you're charging the phone. The combined heat from the battery + the SoC can create some unpredictable results. I killed an HTC Diamond, a Sensation, and my HD2 screen TWICE doing just that (gaming hard while charging and once running IGo GPS for 4 hours while charging).... the end result is invariably unhappy
Click to expand...
Click to collapse
Weired.. I have the HD2 oced to 1.5Ghz, I almost always play heavy games while I charge it.. yet it has survived for more than 2 years..
Is this April fools or a serious issue? Can u share a screenshot of 55
dexteral said:
Is this April fools or a serious issue? Can u share a screenshot of 55
Click to expand...
Click to collapse
If he wanted to fool us he would edit it anyway..
I really don't think it's even good as an april fools..
I'm quite sure 55 would leave permanent trace on the phone, both physically and performance wise.
Playing heavy games while charging will result in additional overheat. I have most of today's phones since I own a retail dealership and I know what I'm talking about.
I'm quite dubious about believing that the phone could ever possibly reach this kind of temperature.
I'm only running on the nexus one for now until i get my ONE X through, but still smashing games whilst charging the phone quickly gets up to 40 degrees C however at that temperature throttling kicks in.
The highest iv ever seen my N1 go is 42 degrees, now if they have shoved all the power under the hood in the new ONE X i find it hard to believe that they would not have any kind of throttling to prevent overheating
shirreer said:
This doesn't sound like a reasonable complaint!! Its a full kitchen; a monster phone with a monster SoC; 4 full-speed cores + 12 GPU cores. Of course it'll heat up if you light it all up! LOL!
My advice is just don't push the performance envelope while you're charging the phone. The combined heat from the battery + the SoC can create some unpredictable results. I killed an HTC Diamond, a Sensation, and my HD2 screen TWICE doing just that (gaming hard while charging and once running IGo GPS for 4 hours while charging).... the end result is invariably unhappy
Click to expand...
Click to collapse
but 55 is too hot to handle.. well, not really, but still pretty uncomfortable..
i cant imagine alighting from the bus or train, locking my phone and slotting it into the pocket of my jeans, all while it is at 55.. that might not fry my legs, but still, not very cool..
fi3ry_icy said:
but 55 is too hot to handle.. well, not really, but still pretty uncomfortable..
i cant imagine alighting from the bus or train, locking my phone and slotting it into the pocket of my jeans, all while it is at 55.. that might not fry my legs, but still, not very cool..
Click to expand...
Click to collapse
I can't imagine you alighting from a bus or train having been simultaneously gaming and charging. And frankly, in the absence of any evidence, I don't believe anybody's phone hit 55 or anywhere near, unless we're talking fahrenheit. ;-)

Slowness in opening the app , software or hardware problem ?

Sorry for my bad english.
I have noticed in some videos that opening heavy applications , the HTC 10 is very very slow .
link:
https://youtu.be/FB5W2DYrl5o?t=5m54s
https://www.youtube.com/watch?v=x-voDhSxF4U
More than 40 seconds to open Real Racing 3 , it is not normal for me.
Ok , Htc 10 does not use UFS memory , but even P9 (20 seconds ) or a medium- range as Meizu M3 Note ( less than 30 seconds ) . You think it is just a issues of memory , or is a software problem that over time will improve?
Another review confirms how slow it is compared to the S7 Edge. It is worrying because the difference in loading seems huge. I'm wondering as well if its down to slow storage performance.
incredible, I have no words. the gap is too large to just be a memory problem.
https://www.youtube.com/watch?v=l97ZCFAqqjM
It seems to suffer from throttling
Unless the phone has an SD set to adoptable storage set.....
Sent from my SM-T810 using Tapatalk
DjBorna92 said:
incredible, I have no words. the gap is too large to just be a memory problem.
https://www.youtube.com/watch?v=l97ZCFAqqjM
It seems to suffer from throttling
Click to expand...
Click to collapse
Looking at the video...no it doesn't. Quite consistent actually.
Also could people for the love of god stop throwing the throttle word around without actually understading what is happening here..
Of course the first Antutu benchmark number was really high because the phones started off cool as a cucumber.
You know, that unibody is a huge freaking heatsink. It's able to absorb a lot of heat and gives the 10 the competetive edge in this kind of a test.
S7 has over 5% less mass vs 10 and a glass back as well. Inside you'll find a teeny tiny heatpipe which is supposed to spread the heat more evenly but there's no visible thermal interface material to actually help that process of pulling the heat away from the SoC to the heat pipe and then spread that heat to the mid frame.
Read: the S7 "throttles" right out of the gate.
Thermal interface material is used to have a better contact between two surfaces, otherwise there will be air trapped between those surfaces and air is not good at transferring heat.​Same goes with the G5, at least it has almost the same mass as the 10 but it's got that silly primer paint and whatnot covering it. LG, you're a genius, of course that's gonna help the heat get away :silly:
And no TIM goop here either, just some sort of thin heatspreader on top of the SoC/UFS NAND and some thermal tape which would then, hopefully, make contact with the metal frame. Problem here is that there's not a lot metal for the heat to transfer to. Also thermal tape < proper paste/goop or thermal pads.
Unfortunately we don't have teardown of the HTC 10 yet, I'm interested in seeing what kind of thermal solution they've got there.
If you take a look at the standard or average deviation of those results, not including test #1 which is the warm up lap, the deviation of HTC 10 scores is just as good or just as bad as the Galaxy S7. G5 being the worst of the bunch and P9 being slooow and consistent at that, doesn't surprise me when looking at the teardown of it..
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Or the geekbench numbers, this time we don't need to exclude the #1 test because the warm up was already done with Antutu.
No problem with single core, almost as good as the S7. This comes down to kernel and governor differences.
I'm not sure what happened here with the multi core numbers with the 10, if I'd got that kind of results, I would've restarted the whole test all over again. I wouldn't accept that kind of a variation, #1-2 being close to each other and then dropping by over 6% with #3-4 being close to each other again.
Just by having some random background process do "stuff" could have an effect like that, single core didn't have that where as with multicore test all of the cores are used which of course means that even if one of those is doing something else...
The P9 for example does show some signs of performance degradation here, first one being high and the following three drop off and are close to each other.
The G5 then shows a random drop as well at #3, just 2% but still a little odd.
But nevertheless. These kinds of tests are ridiculously stupid.
How about you take a look at proper testing over here.
http://anandtech.com/show/10252/htc-10-battery-storage-results
If you don't know what to look at, I'll help you.
This, is throttling. You just simply cannot have a device as small as a phone keep the GPU performance up for very long.
The Adreno 530 is ridiculously powerful and with 256 ALUS's and 600+ Mhz clockspeed, it's going to guzzle a lot of power and in the process create a lot of heat.
Apple on the other hand is obsessed with the consistency and it shows. PowerVR's architecture is just so much more efficient along with Apple's own optimizations.
But anyway, S7 and 10 show the same amount of performance degradation.
And here's FPS/vs time.
The 10 of course drops off faster as HTC doesn't want to burn your fingers. They have a completely different body on the device which means different skin temp restrictions.
But in the long run, S7 is all over the place while the 10 gives you a more consistent performance.
I have no clue why on earth Samsung would prefer that kind of oscillating performance. What you wanna have is strict temp limits with high enough temperature hysteresis so it doesn't start jumping up and down like that.
As an example would you rather have a GPU in your PC which fan would sound like WEE-UUU-WEE-UUU jumping all over the place like a kid on a trampoline or a gradual and consistent hum? Not the same thing of course, closest analogy I could think off, but that kind of fan behaviour of course affects modern GPU's with their automatic "overclocking" or rather their clockspeed through the TDP and temperature limits.
It's not good for the longevity of CPU/GPU dies and other semiconductors either if there's sudden temperature jumps all the time, it's known as thermal stress.
Also, what a lovely dip on the S7 to the high 20's fps as it ran into the temperature limit road block.
What happened was that it tried to overachieve by keeping the clocks high longer > oops I reached the thermal limit, now I have to throttle waay down to save myself. Then after that it jumps up and down...
Would've been nice to see the battery+CPU/GPU temps in those graphs!
And I would love to get those T-Rex numbers in a spreadsheet and have a closer look at them.
Most of these youtubers are zombie buyers with 0% knowing about software etc.. When htc starts shipping 10's, go in local stores and try device for yourself, i may sound like a htcwhore, but i'm right on this.
Just don't trust too much this stupid reviews(even before official shipping...).
@lagittaja Geekbench is constant, but steadily low. G5 with the same cpu has the highest scores (500 in single core and 1800 in multi). I want to wait for the commercialization of the device before drawing conclusions. I think maybe it was castrated to save battery and not giving a bad impression as G5.

Question Screen on Time

Hi Everyone,
The F62/M62 is a battery champ for sure, but a lot of reviews indicate that the efficiency is not as great as the M51 with the 730G. Please post your screen on time so that everyone could benefit from it.
PS: I saw in the M51 thread that people were getting 15+ hours of screen on time by disabling a lot of useless apps using Samsung Package disabler pro. Has anyone tried something similar on F62?
Cheers!
Following. I get 17hrs+ on my M51 with Greenify and certain apps disabled. Interested to see how F62 performs in comparison.
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I am getting 10hr of screen on time on average on Samsung f62.
Cons :
Other then that I face random heating near camera
GPU is not that powerfull, Jitters while playing in full graphics : cod, pubg, asphalt 9.
It took 2 hrs to charge the phone.
No system app lock.
Pros :
Display is awesome.
Camera is superb in daylight images.
Full Knox support
Waiting for custom ROMs.
Hi everyone,
Just got a new F62 but I don't find this to be a battery champ. I hardly get any screen on time and the usual brightness is just good enough to see the screen in the dark. Attached is my battery usage. (working from home don't need high brightness). Not entirely sure if this is an issue with my device or if I'm missing something that I should be doing (removing useless apps and installing greenify)
Seems like a lot of people don't know how to measure SOT.
Limeybastard said:
Seems like a lot of people don't know how to measure SOT.
Click to expand...
Click to collapse
What would be a better way to measure it in that case? I'm sort of a noob in this
abishek1789 said:
What would be a better way to measure it in that case? I'm sort of a noob in this
Click to expand...
Click to collapse
Download and setup GSAM , then measure option since last unplugged.
Here’s an example.
Limeybastard said:
Here’s an example.
Click to expand...
Click to collapse
Got you here's my screenshot
abishek1789 said:
Got you here's my screenshot View attachment 5305501View attachment 5305505
Click to expand...
Click to collapse
You know although it may seem alot by the total time it was unplugged, I didn't use it much in the last 2 days as you see, just 5.5 hrs in 48 isn't much
abishek1789 said:
You know although it may seem alot by the total time it was unplugged, I didn't use it much in the last 2 days as you see, just 5.5 hrs in 48 isn't much
Click to expand...
Click to collapse
Do a test from "since last unplugged" then report back.
kartikey.chaudhary said:
I am getting 10hr of screen on time on average on Samsung f62.
Cons :
Other then that I face random heating near camera
GPU is not that powerfull, Jitters while playing in full graphics : cod, pubg, asphalt 9.
It took 2 hrs to charge the phone.
No system app lock.
Pros :
Display is awesome.
Camera is superb in daylight images.
Full Knox support
Waiting for custom ROMs.
Click to expand...
Click to collapse
Exactly.... i have samsung f62 device. The battery backup is just fab. When it comes to gpu at starting while playing a high end game like asphalt or cod the performance was about 60 fps. Gradually devices gets to heat up and the cpu tends to be slower like it literally drops to 30 in order to reduce heat and yhats a bad thing in this software as of mi and oppo phones the software won't reduce cpu speed even when device gets hot but thats not safe anyway as it may explode. So what's the thing? Nothing just wait for the update of play those high end games in a cool place where cpu gets cooler even when gpu is hot
Limeybastard said:
Here’s an example.
Click to expand...
Click to collapse
Hey is this F62? How are you doing this? I just got my phone, the latest software. My delta on GSAM is 8.4%/h please help.
Limeybastard said:
Do a test from "since last unplugged" then report back.
Click to expand...
Click to collapse
Hey Chief, apologies was caught up with some work stuff! I'm good with the battery now thanks for helping
abishek1789 said:
Hey Chief, apologies was caught up with some work stuff! I'm good with the battery now thanks for helping
Click to expand...
Click to collapse
Lol. I don’t even own this phone anymore. Gone back to using the weak note 20 ultra battery.
So far I've managed 10hr 14min with 26% battery still remaining.
That was 2:30hr using Google nav on max brightness. The rest was mostly watching YouTube with mid brightness. I use digital wellbeing to measure my screen time.
Note: My phone is running the latest F62 firmware and I have partially debloaded my phone with ADB
I am getting 10 Hr average SOT with a full charge, almost 10% drop overnight. Software is poorly optimized. Samsung is doing nothing about it. My phone is under the Flipkart Smart Upgrade Plan so I can't even do anything. This is not the performance of a 7000mah battery, I thought the heavyweight was a tradeoff but it's not. Feel cheated.
I can do between 13 and 16 hours of screen time, if I turn on power saving, limit CPU by 70%, reduce brightness by 10%, I get more than 15 hours easy! I also disabled some apps, which maybe helped the autonomy!

Question BATTERY HEALTH

I just got my 9pro for 3 days and as an curiosity I have diagnosed my device with oneplus care app and it shows that the battery is faulty should I ask for a replacement based on this results?
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That's disconcerting message.
What's the ambient temperature and how hard is it running? If it's not running a heavy cpu load and the ambient temperature is below 85°F, it shouldn't be as hot as 104°F
While Li's can tolerate up to 150°F operating temperatures in general, in phones a 104° battery temp reading is hot.
It's at the point where I would power off the phone.
Does it still have a good run time?
Once an Li gets below 80% of its original capacity it's not a bad idea to replace it.
Li's can form Li dendrites over time that can short out a cell, which be a very bad event. This is rare though. Any signs of or physical damage are grounds for immediate replacement as they can fail violently.
Replacements are generally cheap. Even my difficult to repair Note 10+ battery replacement cost is only $30.
blackhawk said:
That's disconcerting message.
What's the ambient temperature and how hard is it running? If it's not running a heavy cpu load and the ambient temperature is below 85°F, it shouldn't be as hot as 104°F
While Li's can tolerate up to 150°F operating temperatures in general, in phones a 104° battery temp reading is hot.
It's at the point where I would power off the phone.
Does it still have a good run time?
Once an Li gets below 80% of its original capacity it's not a bad idea to replace it.
Li's can form Li dendrites over time that can short out a cell, which be a very bad event. This is rare though. Any signs of or physical damage are grounds for immediate replacement as they can fail violently.
Replacements are generally cheap. Even my difficult to repair Note 10+ battery replacement cost is only $30.
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The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
Salilsarkar said:
The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
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I think they all show overheat in that app. Mine shows overheat in the ACCA app as well. Probably doesn't mean anything. I wouldn't worry about it.
Salilsarkar said:
The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
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Replace it. It may only be a temperature sensor failure, hopefully in the battery.
Li's aren't worth taking a chance on as a runaway at the very least it will destroy the phone.
If it's discharging more than 2%@day with the phone power off completely replace it asap and do not attempt to charge it.
Never charge an Li that is near freezing... as it can trigger a firery runaway event.
Charging below 80F can cause Li plating which will permanently degrade the cell.
Never use water on a lithium fire as it reacts to water like burning magnesium, violently. Another reason they can be nasty if they explode near your skin. Not WP bad, but bad enough.
Agree, that app might be giving false alarm overheating scenario's...
blackhawk said:
Replace it. It may only be a temperature sensor failure, hopefully in the battery.
Li's aren't worth taking a chance on as a runaway at the very least it will destroy the phone.
If it's discharging more than 2%@day with the phone power off completely replace it asap and do not attempt to charge it.
Never charge an Li that is near freezing... as it can trigger a firery runaway event.
Charging below 80F can cause Li plating which will permanently degrade the cell.
Never use water on a lithium fire as it reacts to water like burning magnesium, violently. Another reason they can be nasty if they explode near your skin. Not WP bad, but bad enough.
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Click to collapse
I believe "overheat" is a simple bug. Mine shows the same at all times and battery temp is just fine.
Salilsarkar said:
The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
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WTF? All of this model is like this?
Note, if it is running at 104F you can certainly feel that. No sensor needed.
Below is a nominal reading for my Note 10+ in 72°F or so ambient temperature.
Same thing here with CPU-Z and I didn't have a single overheating problem, I think it's a bug.
Hypnoz69 said:
Same thing here with CPU-Z and I didn't have a single overheating problem, I think it's a bug.
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CPU-Z is known for doing stuff like that.
If it's the phone's app it's a different story.
I'm sorry the app is not available on the Play Store so I can't test with it.
Mine also shows the same with one plus care app. I think its a bug. Nothing to worry about.
DevChek gives a comprehensive temperature sensor readout of all sensors.
galaxys said:
Agree, that app might be giving false alarm overheating scenario's...
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Not just OnePlus care app ,devcheck ,cpu-z every app is showing the same overheating notification ,but in actuality the device isn't even slightly warm on touch .
nickporwal said:
Mine also shows the same with one plus care app. I think its a bug. Nothing to worry about.
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Mine shows this too ,is it happening with all the 9pro device?
Salilsarkar said:
Not just OnePlus care app ,devcheck ,cpu-z every app is showing the same overheating notification ,but in actuality the device isn't even slightly warm on touch .
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That's not good. If it's across the board for this model it's a bad product flaw.
If those readings are used during the charge cycle it could really screw things up.
Hypnoz69 said:
I'm sorry the app is not available on the Play Store so I can't test with it.
Click to expand...
Click to collapse
Here you go:
blackhawk said:
That's not good. If it's across the board for this model it's a bad product flaw.
If those readings are used during the charge cycle it could really screw things up.
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Click to collapse
Maybe continuously declaring the battery as an overheat condition allows OnePlus more control over its charging in the Android OS? Have no idea. Just a random guess. It's likely a bug, but the "overheat condition" that is set could possibly be on purpose. Regardless, it shouldn't be showing the word overheat obviously.
blackhawk said:
That's not good. If it's across the board for this model it's a bad product flaw.
If those readings are used during the charge cycle it could really screw things up.
Click to expand...
Click to collapse
I have contacted some people who own this device and it seems all the 9 pro devicies are behaving the same ,most of them are giving the overheating battery status across various apps like cpu-z, devcheck, OnePlus care etc.
bulletbling said:
Maybe continuously declaring the battery as an overheat condition allows OnePlus more control over its charging in the Android OS? Have no idea. Just a random guess. It's likely a bug, but the "overheat condition" that is set could possibly be on purpose. Regardless, it shouldn't be showing the word overheat obviously.
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Click to collapse
It could cause charging to disengage or not engage at all. If it has fast charging it could completely skew the charging profile if that temperature input is used and could damage the battery. At lower temperatures (>50-72°F*) fast charging must not engage.
It could also trigger thermal throttling prematurely.
I would keep a close eye on it...
*not sure of the exact temperature that is the normal preset. Minimum of 82°F start charge temperature is best practice even when slow charging. It's an electrochemical reaction that needs heat to properly work.

Question What is the "normal" temperature ?

I had a lot of mobiles phones, and this one for me is the hottest... is normal ?
what is the temperature that is normal in this phone ?
and what is considered hot in this phone ?
STOP USING IT RIGHT NOW.
THE BATTERY MIGHT BE OVERHEATING
Ayaanbaig12 said:
STOP USING IT RIGHT NOW.
THE BATTERY MIGHT BE OVERHEATING
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Click to collapse
its 30º ... for me is hot, and never had a mobile so hot
use old or wives phone
REPLACE THE BATTERY
GabrielSousa said:
I had a lot of mobiles phones, and this one for me is the hottest... is norml ?
what is the temperature that is normal in this phone ?
and what is considered hot in this phone ?
Click to expand...
Click to collapse
It's "normal. It goes even higher under heavier usage. Snapdragon 888 is to blame here. Don't look for "solutions" on how to "cool my phone down". lol SOC is trash and it's consuming way to much power thanks to Samsung and their manufacturing **** process.
GabrielSousa said:
its 30º ... for me is hot, and never had a mobile so hot
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Click to collapse
Around that it's normal.
Ayaanbaig12 said:
STOP USING IT RIGHT NOW.
THE BATTERY MIGHT BE OVERHEATING
Click to expand...
Click to collapse
Ayaanbaig12 said:
use old or wives phone
Click to expand...
Click to collapse
Ayaanbaig12 said:
REPLACE THE BATTERY
Click to expand...
Click to collapse
Stop this kind of statements.
alright superman
i changed the custom rom, thinking was the ROM ...
is strange because sometimes is cold, then for no reason, and sleeping(not charging) goes to 30º ....
could be the 5G ?
TOP 10 SNAPDRAGON 888 FLAGSHIPS THAT TEND TO OVERHEAT​7. ONEPLUS 9 PRO – AVERAGE TEMPERATURE IS 33.71°C​
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Top 10 Snapdragon 888 flagships that tend to overheat
Top 10 Snapdragon 888 flagships that tend to overheat. There are a couple of flagship smartphones on this list that has heating issues
www.gizchina.com
People worry way too much. These SoCs are meant to run hot and throttle themselves long before they do damage. Put a case on it to mitigate the physical sensations somewhat and just go about your life. It's because of complaints like this that companies like OnePlus and Samsung have been selling us devices with forced throttles, impacting battery life by shifting processes to less powerful cores.
EtherealRemnant said:
People worry way too much. These SoCs are meant to run hot and throttle themselves long before they do damage. Put a case on it to mitigate the physical sensations somewhat and just go about your life. It's because of complaints like this that companies like OnePlus and Samsung have been selling us devices with forced throttles, impacting battery life by shifting processes to less powerful cores.
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i hate covers, never in my life used covers, i like to feel the real phone...
GabrielSousa said:
i hate covers, never in my life used covers, i like to feel the real phone...
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Click to collapse
Well then you just gotta get used to it running warm or turn off 5G and use power saving modes, use a kernel that allows you to undervolt/underclock.
5G produces a ridiculous amount of heat when it's actively being used. My iPhone 12 Pro Max would get so hot I couldn't hold it when I used the 5G modem for more than a minute of downloading. My OnePlus 9 is thankfully better but still not great and it wastes a ton of power in standby anyway, almost three times what it uses with 5G disabled.
The 888 does run warm when it's firing on all cylinders but I hardly ever notice my OnePlus 9 getting warm unless I'm using it heavily so check and make sure you don't have background processes going rogue.
OP 9pro is Vegas hot in July while surfing and gaming during winter.
benhidalgo said:
OP 9pro is Vegas hot in July while surfing and gaming during winter.
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It's only in the 70's today in Sunny Las Vegas
galaxys said:
It's only in the 70's today in Sunny Las Vegas
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83° here today in Ohio.
TheKnux said:
83° here today in Ohio.
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Ive had zero issues with device heating. 888 is silica lottery
the max temp i had was 32º celsius ... but like i said, never had a mobile so hot like this
As others have said, it’s mostly the 888’s fault. I sold my 9 Pro as it got way too warm to use comfortably for my use case.
Using GPS outdoors would prompt an overheating message in ~10-15 minutes.
Gaming is also not fun. After ~5 minutes of Genshin you can feel the heat, and after ~10-15 minutes into Genshin it’s uncomfortably warm to hold and makes my hands perspire.

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