CPU overheating while running camera - Samsung Galaxy Note 9 Questions & Answers

Hello, I got my new phone just two weeks and I noticed huge issue, or is it just faulty piece for repair? :/
Yesterday I was using phone around 30 mins, always on sun 30 ' C, phone was really hot in my hands, I was running camera all time to make videos 1920x1080 and as well slowmotion and I got this notification: Warning! Temperature too high to use Camera. Wait for phone to cool down before using Camera.
See screenshots from CPU monitor app, when 47'C I got this warning, however i am not sure if its correct temperature.
This is actually ridiculous, how about users in the world? In Asia if there is 40 ' C on sun? Is that EU CPU Exynos 9810 not able cooling on the sun? How about your experience with worldwide model with CPU Snapdragon 845???
Samsung Galaxy Note9 N960F - EU version, CPU Exynos 9810
Score in Antutu Benchmark 249267, device verification passed.
See attached screenshots, thanks for any advice

using camera as in making video?

raul6 said:
using camera as in making video?
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yes using camera to make video 1920x1080

Idk, here in EU, in Croatia is around 30°C - 33°C everyday and my Note gets hot too, so I'm trying to not exposure it to sunlight that much (all of my devices got hot in that temperatures)
You should try working outside on this temps and you will probably understand why your phone gets hot!

nevenx said:
Idk, here in EU, in Croatia is around 30°C - 33°C everyday and my Note gets hot too, so I'm trying to not exposure it to sunlight that much (all of my devices got hot in that temperatures)
You should try working outside on this temps and you will probably understand why your phone gets hot!
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We need phone for traveling vlog, of course we want use it outside to make videos .... But Just 30 mins and died???
So this Samsung "flagship" is useless on the sun Lol... Definitely We can last on sun much more longer than the ''flagship'' phone :laugh:
Even I fly with my drone, same problem occurs, getting really hot after 20 mins of flight

So I solved the problem myself
But first I went in the Samsung authorised service and told them this problem. They checked in the computer this phone serial number and they found out that this phone is only for Hungarian market and they cannot repair for free in warranty. I live in Czech Republic and only that they can repair. That's a little bit cheating from the seller where I bought this phone, so I go back to reseller (Mobinet.cz), give phone for repair. After two weeks they give back and said they do something with software. OK, so I am testing repaired phone, But even after that I see the same problem, overheating while running camera video. And warning message pop up again.
So I changed the second party app for making video, Filmic Pro, testing even 4k video and don't have a problem at all. Phone is even physically cold, not burning, like in Samsung camera! (Even hard to hold in hands).
Anyway you should always buy phone in authorised reseller in your country or in official store, don't go for cheaper price like me.

Related

P10 gets quite hot

Hello,
since 4 days I am a proud owner of a Huawei P10. Berfore that I had a HTC One M9, which did good work for me, except two repairs, but due to a new mobile contract I got the P10 now.
Yesterday I was on my way with my bike, using the App Komoot with my phone inside THIS (not sure if available in other languages than german) waterproof bike case. I had my M9 with a cover case around it, in there often and everything was fine too.
But as I came back from my bike ride yesterday I wanted to take the P10 out of the bike case and as I touched it I almost let it fall down because it was so damn hot.
I managed to start CPU-Z on it and it showed a value of 65-70°C (at soc_thermal) A few minutes later it was on a normal temperature again.
Today it tested it again using the Multiview-App-Thing with Komoot and CPU-Z simultaneously and it reached a maximum of 61,9°C (Screenshots attached)
I'm not really sure what causes it to get so hot. It could be the phone itself or the app or the direct sunlight hitting the phone in the closed case.
Is it normal that it gets so hot? Or better, does it damage the phone in any way?
When the camera or navigation are turned on, P10 will be hot, and if it is turned off, it will return to normal .
But is it normal that it gets so hot I can't touch it anymore for some minutes? I mean My HTC One M9 only got that hot when doing a NAndroid Backup
P10 gets very hot, my old Mate 8 never heats up like P10 even when using GPS and camera...
Sent from my VTR-L29 using Tapatalk
Hi guys, I got one step further from what you all mentioned. I took it the day before yesterday to a official service and reported that issue. When I'm taking a photo, and I as many bought this phone especially because of camera, the phone gets so hot it's like 40 degrees Celsius. They tasted the phone and told me nothing is wrong, it works in a proper way and no, you can't use a premium guarantee. So, I think I'll sell it in a near future.
Same here - when taking photos or videos for a bit longer time, it gets noticeably hot. Summer is on the doorstep, so I will try to test if the phone shuts down at all or keeps functioning normal. If it shuts down - will bug the seller with warranty.

N7P heat

Hi guys,
For a couple of weeks now my girlfriend and I both are the happy owners of the N7P.
Beautiful device and does everything perfect.
Both are of course the same identical N7P's (packaging numbers and all device ID's on the phone are identical) , on contract from the same store (Vodafone) and bought at the same time.
One thing we noticed a couple of days after usage is that my screen is a lot brighter and less yellowish (without auto brightness and blue light filter off).
could this be a refurbished model or could this happen from the factory?
The second thing we noticed is that my girlfriend's 7P is running HOT, not only during charging but also during normal use and standby.
Really noticeable while holding both devices and it really disturbed us.
I first thought it was an specific app but couldn't find anything.
After some testing we decided to factory reset both our devices and set them up exactly the same and installed a temperature monitoring app.
After some hours of testing again with some basic features and standby time on both phones, the result was that my girlfriend's 7P turned out to have an avarage of 7 degrees celcius higher overal temperature and 5 degrees celcius higher cpu temperature.
The store found my personal tests and results not convincing enough and said that if I were to return the phone they would do testing of their own and if they would find the results disturbing enough send it back to Nokia... At a lot of extra costs.
I hope that anyone could give some advice and/or explanation for this before I go back to the store.
Thank you for reading.
Regards Tim.
If screens isn't the same, imo that would be the argument to return one of phones to be fixed.
I would try switch phones and you will be using your girlfriend's phone and she will be using your's. That would enough to find out if the problem is with some app or is with one of 7+ itself.

Question S21 Ultra Snapdragon Always Running Warm

Simple use of the phone - browsing, instagram, google news, whatsapp, etc., the phone gets warm. Playing PUBG for 30 minutes, the phone gets a lot warmer, but never hot to the touch. The only way it stays cool is if I'm not using it at all. In comparison, my OnePlus 7 Pro stays cool all the time, except when playing graphic-heavy games.
Any setting I'm missing?
Welcome to the hot club!
That's odd my s21 ultra stays cool barely warm when gaming
If you have the Exynos version of the phone, then that could explain the heat. But if you have a SD888 variant, then your phone will still get a little warm, but not quite as hot as the Exynos.
Using GSAT to check temperature levels, any light activity gets the phone to about 36C to 37C. I tried restarting the phone about 5 times in a row and it went to about 44C.
Sharpshooterrr said:
Using GSAT to check temperature levels, any light activity gets the phone to about 36C to 37C. I tried restarting the phone about 5 times in a row and it went to about 44C.
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Click to collapse
Thanks for updating your post title =). That's the clarity we need for this phone on XDA.
Anyway, I'm unsure of this, but I'm pretty sure that when a phone is booting up it generally creates a tiny bit of heat because it's just getting everything initially setup for that boot.
But yeah, just be glad that you have the SD version. If you didn't, it might be even hotter! And I agree that this phone still gets pretty warm - I just haven't done any temperature tests on mine. Either way, do you happen to be using a case on this phone? I'm a caseless phone user and my phone still gets warm when used for an extended period of time... So I have a feeling that some thicker, heat sealing cases might be turning these phones into toasters...
*Edit* - maybe they'd be more like hand warmers? Lol
NippleSauce said:
If you have the Exynos version of the phone, then that could explain the heat. But if you have a SD888 variant, then your phone will still get a little warm, but not quite as hot as the Exynos.
Click to expand...
Click to collapse
My exynos is cool.... And no im not a fanboy, had the note20 ultra exynos heater and sold it because of this **** chipset...
NippleSauce said:
Thanks for updating your post title =). That's the clarity we need for this phone on XDA.
Anyway, I'm unsure of this, but I'm pretty sure that when a phone is booting up it generally creates a tiny bit of heat because it's just getting everything initially setup for that boot.
But yeah, just be glad that you have the SD version. If you didn't, it might be even hotter! And I agree that this phone still gets pretty warm - I just haven't done any temperature tests on mine. Either way, do you happen to be using a case on this phone? I'm a caseless phone user and my phone still gets warm when used for an extended period of time... So I have a feeling that some thicker, heat sealing cases might be turning these phones into toasters...
*Edit* - maybe they'd be more like hand warmers? Lol
Click to expand...
Click to collapse
Coming from a OnePlus 7 Pro, the heat generated during light use is so noticeable that I had to install a temp monitor (gsat). No problems with previous phone.
I have the official leather cover on, it may contribute to the heat but it shouldn't be that much, I reckon.
I don't need hand warmers haha.
What's GSAT? Can't find it in the play store
salemsayed said:
What's GSAT? Can't find it in the play store
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Click to collapse
Sorry, I meant GSam.
Snapdragon here as well. Mines never warm . Only when I set it up.
pafc66 said:
Snapdragon here as well. Mines never warm . Only when I set it up.
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Click to collapse
Please take a 10 minute 4K30 Video and say how much % battery it drained and if the phone got hot.
I also have the Snapdragon version and I'm not sure if what I'm experiencing is normal or not, but my phone gets warm often especially the aluminum on the top left opposite of the camera. I've been keeping track of the temperature and it seems like my phone is always operating around 33C - 35C on normal everyday use like browsing, instagram and youtube. When I use the camera it goes to almost 40C. These numbers are around 91F-95F and 104F respectively. I recorded a 3 minute video on 4k60 and that's when it hit around 40C. Really trying to figure out if I should do an exchange.
iamnotkurtcobain said:
Please take a 10 minute 4K30 Video and say how much % battery it drained and if the phone got hot.
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Click to collapse
Exynos: Lost the same 5% as you reported, and phone got hot around the camera module. Temperature of surrounding environment was around 20-25 degrees celcius. The phone didn't feel especially hot in general otherwise (using a relatively slim case).
Losing 5% in 10 minutes means about 30% per hour. So one could record in 4K for about 3-4 hours straight? Is that really that bad?
ssj100 said:
Exynos: Lost the same 5% as you reported, and phone got hot around the camera module. Temperature of surrounding environment was around 20-25 degrees celcius. The phone didn't feel especially hot in general otherwise (using a relatively slim case).
Losing 5% in 10 minutes means about 30% per hour. So one could record in 4K for about 3-4 hours straight? Is that really that bad?
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Click to collapse
Yes it's bad in my opinion. My S20+ (with the infamous/bad Exynos 990) lost 5% in 15 minutes 4K30 video recording and got barely warm.
iamnotkurtcobain said:
Yes it's bad in my opinion. My S20+ (with the infamous/bad Exynos 990) lost 5% in 15 minutes 4K30 video recording and got barely warm.
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Click to collapse
After how many updates though?
ssj100 said:
After how many updates though?
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Many, many, many, many, many, many, many Updates. I hope they can improve it on the S21 too.
iamnotkurtcobain said:
Many, many, many, many, many, many, many Updates. I hope they can improve it on the S21 too.
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Click to collapse
Yes, that's what I thought. I'm coming from the S9+, and there were several issues with that too when it first came out, which were all fixed with subsequent updates.
Just curious, how do you find the recording in FHD60? That's been my default recording as I don't actually have any 4K monitors.
iamnotkurtcobain said:
Yes it's bad in my opinion. My S20+ (with the infamous/bad Exynos 990) lost 5% in 15 minutes 4K30 video recording and got barely warm.
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Click to collapse
Just thought I'd update here - re-tested with the April update. Lost 4% in 10 minutes on 4K30 video recording this time. Heating not as bad, although that's simply guessing/subjective (I don't have a heatgun).
ssj100 said:
Just thought I'd update here - re-tested with the April update. Lost 4% in 10 minutes on 4K30 video recording this time. Heating not as bad, although that's simply guessing/subjective (I don't have a heatgun).
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Click to collapse
It's just natural to lose 4% in 10 mins of 4k30fps recording. You are basically using all the system resources when operating the camera - i.e. the CPU, RAM and storage all run at the highest. It's not just this device you test this on any device iOS included and the results will be almost the same.

General Snapdragon 888 vs Exynos 2100 after latest updates

I know there are already a few threads for the same discussion ,
But I am making this thread for a healthy discussion on what's better between Snapdragon 888 and Exynos 2100 after the latest software updates for both models .
There are youtube reviews that are contradictory to each other
1) Mrwhosetheboss says Snapdragon is way better and Exynos is heating like crazy.
Also in camera sd>exynos
2) The tech chap on the other hand says Exynos to be faster and cooler .
Let's discuss
I am planning to buy the s21 ultra over the OnePlus 9 pro just because I am getting it at the same price as OnePlus 9 pro ,
Also the software on OnePlus is always going to be buggy and an update to fix one issue will create more bugs .
aj7400 said:
I know there are already a few threads for the same discussion ,
But I am making this thread for a healthy discussion on what's better between Snapdragon 888 and Exynos 2100 after the latest software updates for both models .
There are youtube reviews that are contradictory to each other
1) Mrwhosetheboss says Snapdragon is way better and Exynos is heating like crazy.
Also in camera sd>exynos
2) The tech chap on the other hand says Exynos to be faster and cooler .
Let's discuss
Click to expand...
Click to collapse
After my experience with the Exynos, I'm far more inclined to believe the Tech Chap. I've had no issues with thermal throttling, and my phone sits most of the time at between 28 and 32 degrees when being used under normal circumstances (browsing, light camera use etc). I've also run the benchmarks he ran and got pretty much the same results. I'm very happy with it.
I strongly suspect that boss geezer just had bad luck and picked up an Exynos model with a bad SOC. The difference between the two is he didn't buy another to rule that out.
Beefheart said:
After my experience with the Exynos, I'm far more inclined to believe the Tech Chap. I've had no issues with thermal throttling, and my phone sits most of the time at between 28 and 32 degrees when being used under normal circumstances (browsing, light camera use etc). I've also run the benchmarks he ran and got pretty much the same results. I'm very happy with it.
I strongly suspect that boss geezer just had bad luck and picked up an Exynos model with a bad SOC. The difference between the two is he didn't buy another to rule that out.
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What's the ambient temperature in your area?
aj7400 said:
What's the ambient temperature in your area?
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Like both Youtubers in this thread, I'm in England so it's not hot at the moment.
Ambient temp makes a difference, but my experience of mobile phones in the UK over the last 25+ years, not massively so.
Beefheart said:
Like both Youtubers in this thread, I'm in England so it's not hot at the moment.
Ambient temp makes a difference, but my experience of mobile phones in the UK over the last 25+ years, not massively so.
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I live in a area where the temperatures are like 40°C for like 8 months and 10°C for 4 months ..
At 40°C ambient temps even apple iphones break their sweat and throttle.
aj7400 said:
I live in a area where the temperatures are like 40°C for like 8 months and 10°C for 4 months ..
At 40°C ambient temps even apple iphones break their sweat and throttle.
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You say even Apple iPhones but they're dogs**t when it comes to thermal dissipation, in particular the more recent ones.
All I can say is that this phone is no worse than any others I've had when it comes to thermals, and seems to be better than most of them.
After I contemplated a lot, I went for it and purchased the EXYNOS version as I live in Europe and the Snapdragon seems to be Single SIM, so no point ordering it from Amazon.
Mrwhostheboss either had a faulty unit or at the time of his video, the update he put wasn't enough to fix the software issues.
Mine works fine, no overheating (gets a bit warm when doing heavier tasks, ~22c ambient room temps), no camera problems or glitches, all seems good. The camera quality is pretty fine too, although it did definitely improve further after I installed the last update. When I tested the camera out of the box, it was all weird.
Battery life for me is quite fine as well. At the time of writing this message I got SOT 1h45m and battery is at 78%. Plenty of apps installed, Dual SIMs active. AOD active.
I also have the Dr. Ketan ROM with root, AFWall and etc. So I slightly debloated the useless stuff.
I am satisfied with the EXYNOS, and although I have no way to test them next to each other, I'm sure that If the SNAP is better in some ways, it is NOT in others, like NO DUAL SIM.... And for sure if there is anything left to fix on the EXYNOS, they will fix it with the upcoming updates.
But again, if you buy an EXYNOS, make sure you do it right. Start it, install all your apps, make sure you update it to the latest firmware version and then start testing it. If it has problems, factory reset it and return it for a new one.
Good luck!!!
babyboy3265 said:
After I contemplated a lot, I went for it and purchased the EXYNOS version as I live in Europe and the Snapdragon seems to be Single SIM, so no point ordering it from Amazon.
Mrwhostheboss either had a faulty unit or at the time of his video, the update he put wasn't enough to fix the software issues.
Mine works fine, no overheating (gets a bit warm when doing heavier tasks, ~22c ambient room temps), no camera problems or glitches, all seems good. The camera quality is pretty fine too, although it did definitely improve further after I installed the last update. When I tested the camera out of the box, it was all weird.
Battery life for me is quite fine as well. At the time of writing this message I got SOT 1h45m and battery is at 78%. Plenty of apps installed, Dual SIMs active. AOD active.
I also have the Dr. Ketan ROM with root, AFWall and etc. So I slightly debloated the useless stuff.
I am satisfied with the EXYNOS, and although I have no way to test them next to each other, I'm sure that If the SNAP is better in some ways, it is NOT in others, like NO DUAL SIM.... And for sure if there is anything left to fix on the EXYNOS, they will fix it with the upcoming updates.
But again, if you buy an EXYNOS, make sure you do it right. Start it, install all your apps, make sure you update it to the latest firmware version and then start testing it. If it has problems, factory reset it and return it for a new one.
Good luck!!!
Click to expand...
Click to collapse
In india there is nothing as return ..
Once paid the device is yours till it has some major issues and they are just repaired ,
Unfortunately We cannot return it for a refund here in india .
That is why thinking twice before buying .
I have no overheating problems with my Exynos unit. Phone idles at around 25-30degC.
Yo bro,
Listen, avoid YouTube reviews. Bro these ppl are just benefiting from these kindda arguments and stuff.
I had the s21 ultra 512 and i sold it coz i have literally watched every single review out there and was too worried i might have been scammed or made the wrong choice.
After talking to some ppl here i bought it again and this time i made sure i cleared my search history lol and never ever to watch a thing.
It is not SD888 but it is close, it has good battery, cameras are barely any difference between them. If you game a lot you should really just buy a different phone just for gaming.
The screen is phenomenal.
Bro i live in Kuwait, temps here reach 55°....until now i have not experienced any extreme heating issues.
My advice to you, don't listen to anything, the device is amazing...yes it lacks behind the SD888 but for me it's the better pick.. i get warranty for a year and a trade on later or i can even sell it and not lose while the imported is basically non sellable here.
So weigh things out and decide, once you decide do not regret. Do not hesitate it's just a phone, if you have a slight doubt avoid it and wait for a different phone.
Goodluck.
aj7400 said:
I know there are already a few threads for the same discussion ,
But I am making this thread for a healthy discussion on what's better between Snapdragon 888 and Exynos 2100 after the latest software updates for both models .
There are youtube reviews that are contradictory to each other
1) Mrwhosetheboss says Snapdragon is way better and Exynos is heating like crazy.
Also in camera sd>exynos
2) The tech chap on the other hand says Exynos to be faster and cooler .
Let's discuss
Click to expand...
Click to collapse
Camera has improved on the exynos with updates, personally I still feel low light video and photos are just ok, but anything in decent light is great, and I don't have anything other than a pixel 3 to compare to, so not a fair fight as the camera tech on that is old.
In regards to the video, mr whos the boss was using antutu for temperatures and it's well known that at that time it couldn't read exynos temps properly. When I had antutu, it showed around 40 degrees, but CPU monitor was around 25 degrees
I've got the exynos and had no real issues to date, battery life is sometimes great, sometime ok, but more than enough to do me from morning to night with my usage. Other than that can't complain at all
Should wait for the xiaomi's launch today?
mtm1401 said:
Camera has improved on the exynos with updates, personally I still feel low light video and photos are just ok, but anything in decent light is great, and I don't have anything other than a pixel 3 to compare to, so not a fair fight as the camera tech on that is old.
In regards to the video, mr whos the boss was using antutu for temperatures and it's well known that at that time it couldn't read exynos temps properly. When I had antutu, it showed around 40 degrees, but CPU monitor was around 25 degrees
I've got the exynos and had no real issues to date, battery life is sometimes great, sometime ok, but more than enough to do me from morning to night with my usage. Other than that can't complain at all
Click to expand...
Click to collapse
Berserker900 said:
Yo bro,
Listen, avoid YouTube reviews. Bro these ppl are just benefiting from these kindda arguments and stuff.
I had the s21 ultra 512 and i sold it coz i have literally watched every single review out there and was too worried i might have been scammed or made the wrong choice.
After talking to some ppl here i bought it again and this time i made sure i cleared my search history lol and never ever to watch a thing.
It is not SD888 but it is close, it has good battery, cameras are barely any difference between them. If you game a lot you should really just buy a different phone just for gaming.
The screen is phenomenal.
Bro i live in Kuwait, temps here reach 55°....until now i have not experienced any extreme heating issues.
My advice to you, don't listen to anything, the device is amazing...yes it lacks behind the SD888 but for me it's the better pick.. i get warranty for a year and a trade on later or i can even sell it and not lose while the imported is basically non sellable here.
So weigh things out and decide, once you decide do not regret. Do not hesitate it's just a phone, if you have a slight doubt avoid it and wait for a different phone.
Goodluck.
Click to expand...
Click to collapse
mtm1401 said:
Camera has improved on the exynos with updates, personally I still feel low light video and photos are just ok, but anything in decent light is great, and I don't have anything other than a pixel 3 to compare to, so not a fair fight as the camera tech on that is old.
In regards to the video, mr whos the boss was using antutu for temperatures and it's well known that at that time it couldn't read exynos temps properly. When I had antutu, it showed around 40 degrees, but CPU monitor was around 25 degrees
I've got the exynos and had no real issues to date, battery life is sometimes great, sometime ok, but more than enough to do me from morning to night with my usage. Other than that can't complain at all
Click to expand...
Click to collapse
That temp thing with Antutu makes sense, I was worried when I first got my phone as it was listing my CPU temperature in the low 50s but then I installed CPU Monitor and it showed it was around 30 degrees. Maybe MrWhosTheBoss should have done a bit more research.
It's funny reading the comments on that video. Thousands of people talking about the S21 Ultra being rubbish on Exynos without having the first clue what they're talking about. It goes to show how a badly made video can really effect how a phone is perceived.
Beefheart said:
That temp thing with Antutu makes sense, I was worried when I first got my phone as it was listing my CPU temperature in the low 50s but then I installed CPU Monitor and it showed it was around 30 degrees. Maybe MrWhosTheBoss should have done a bit more research.
It's funny reading the comments on that video. Thousands of people talking about the S21 Ultra being rubbish on Exynos without having the first clue what they're talking about. It goes to show how a badly made video can really effect how a phone is perceived.
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Click to collapse
Exactly and there is me researching this from a week before buying it .
Also tried to stress the camera on the demo unit at a samsung store , but it was warm to touch but not at all hot ..
By the way , as OnePlus markets their 9 pro with 5 layer cooling system , how's the cooling on s21 ultra?
JerryRigEverything did a teardown, but it's the SD varient. I'm not sure if the cooling solution on Exynos differs.
aj7400 said:
Exactly and there is me researching this from a week before buying it .
Also tried to stress the camera on the demo unit at a samsung store , but it was warm to touch but not at all hot ..
By the way , as OnePlus markets their 9 pro with 5 layer cooling system , how's the cooling on s21 ultra?
Click to expand...
Click to collapse
The Samsung is much more aggressive with its thermal throttling than the mi 11 (A good thing or a bad thing depending on what you want in a phone), don't know about the oneplus or how effective it's cooling system actually is (could just be a gimmick/branding, but I don't know).
I would say from what I've seen, s21u has better battery, genuine adaptive refresh, marginally photos cameras but much more versatile camera array, better software.
Mi11 better charging and sustained gaming
Early oneplus reviews have middling battery life, but an educated guess that they haven't enabled the variable refresh yet on the pro, as it seems to last the same amount of time as the base model.
In all honesty, if you aren't sure, wait a month or so for the 'long term' reviews, then you will get a better idea of the final product
mtm1401 said:
The Samsung is much more aggressive with its thermal throttling than the mi 11 (A good thing or a bad thing depending on what you want in a phone), don't know about the oneplus or how effective it's cooling system actually is (could just be a gimmick/branding, but I don't know).
I would say from what I've seen, s21u has better battery, genuine adaptive refresh, marginally photos cameras but much more versatile camera array, better software.
Mi11 better charging and sustained gaming
Early oneplus reviews have middling battery life, but an educated guess that they haven't enabled the variable refresh yet on the pro, as it seems to last the same amount of time as the base model.
In all honesty, if you aren't sure, wait a month or so for the 'long term' reviews, then you will get a better idea of the final product
Click to expand...
Click to collapse
I am getting the s21 u e2100 today .. let's hope I get a good silicon compared to what some people have got
I seriously have a feeling that both versions of the phone are nearly identical in performance and camera quality. The primary reason why we see so many threads regarding heat issues, app crash issues or battery issues are not necessarily due to the versions of the phone that are being used (Exynos or Snapdragon)... But instead, I think that this is mainly due to the fact that a lot of Samsung's phone sales are to people who aren't very tech friendly....at all...
I mean, think of Apple's iPhone market. What percentage of their customers are tech geniuses who know everything about complete device care and optimization? I'd say, near me in the US, maybe about 3-5% of their customers... And with that said, you have to keep in mind that Samsung is the most Apple equivalent company in sales numbers for Android devices in the US. So probably only about 1-2% of their phone customers actually know what the heck they're doing.
So (internally thought lol) truth be told, I don't think one variant is better than the other. I just think that we need to keep in mind the fact that the Samsung phone market is packed to the gills with customers who don't know much at all regarding the technology that's used or how it works/can be optimized or made better. Luckily for us on this particular thread, we probably don't run into the aforementioned issues as we're likely all people who actually know how to use, care for and optimize a damn smart phone lol.
Side note: this was a long comment, so my apologies.
*Edit* - To respond to @aj7400 without wasting more post space :
The US isn't really a particularly cold area. It's just a much bigger area. So there are certainly some states where the temperature stays cold for a while... But there are tons of other places where it stays over 23°C all year round (and a few states where it stays above 33°C all year). So overall, I still believe that these issues are just coming up due to a severe lack of knowledge =(. But the good thing for you is that you actually appear to know what the deal is, hence why you're here on XDA. Thanks for being here =). But ya see what I mean? You were aware of the slightly warmer temperature of the S21U and you were aware of the fact that you live in a hot area. Therefore, you're not constantly complaining about the phone being borked out of the box, but instead, you're looking for potential solutions. Kudos!
NippleSauce said:
I seriously have a feeling that both versions of the phone are nearly identical in performance and camera quality. The primary reason why we see so many threads regarding heat issues, app crash issues or battery issues are not necessarily due to the versions of the phone that are being used (Exynos or Snapdragon)... But instead, I think that this is mainly due to the fact that a lot of Samsung's phone sales are to people who aren't very tech friendly....at all...
I mean, think of Apple's iPhone market. What percentage of their customers are tech geniuses who know everything about complete device care and optimization? I'd say, near me in the US, maybe about 3-5% of their customers... And with that said, you have to keep in mind that Samsung is the most Apple equivalent company in sales numbers for Android devices in the US. So probably only about 1-2% of their phone customers actually know what the heck they're doing.
So (internally thought lol) truth be told, I don't think one variant is better than the other. I just think that we need to keep in mind the fact that the Samsung phone market is packed to the gills with customers who don't know much at all regarding the technology that's used or how it works/can be optimized or made better.
Side note: this was a long comment, so my apologies.
Click to expand...
Click to collapse
That's allright ,
But imo apple is from day 1 producing good chips and their optimization is top notch ,
And samsung in US is just offering Snapdragon .
That's the main reason people are not complaining about both , and they don't care what are the specs in their phone .
Also US is a relatively cold area so not much is going around throttling issues .
I live in india where highest temps reach 45°C , where the real problem of thermal throttling arise .
So I care much about these things .

Question Has heating issue of this phone been fixed?

I'm considering whether to buy this phone because how compact and elegant it is.
Thing is the heating issue I've heard of is holding me back. I've heard that the heating issue of Zenfone 8 has been fixed over the last 2 updates but I'm not quite sure about it. Can anyone confirm this? Does intense use (such as 4k video shooting or gaming) make it very hot?
And I wonder, in case it has been fixed, is the Snapdragon 888 CPU performance still the same? I'm worrying that Asus might have lower the CPU frequency or such so that the CPU generates less heat...
Hey,
Intense gaming and 4k video recording will still make the phone hot. After several minutes of 4k recording camera app will close because of overheating.
assasss said:
Hey,
Intense gaming and 4k video recording will still make the phone hot. After several minutes of 4k recording camera app will close because of overheating.
Click to expand...
Click to collapse
What? Maybe in Marrakesch that's true. I just did 5min 8k recording to check that nonsense statement. The phone got warm under the camera. Did not close nor did it give any warning.
Are there any phones that do not get hot during intense gaming??
I am using the provided case and the warmth is there but nothing untouchable nor risky.
I assume it depends where you live. In very hot countries you may get the warning that's it's getting hot.
@Kemez
In Munich, Germany which is not a "hot" country.
Nonsense? Not sure why you have that attitude but there are multiple threads on Zentalk forums about this issue.
Example 1: https://zentalk.asus.com/en/discussion/51884/shut-down-camera-overheating#latest
Example 2: https://zentalk.asus.com/en/discussion/49295/heating-issues-asus-zenfone-8#latest
Which says: "I am barely able to record 6 minutes of 4k 60 fps before the camera app shuts down. And mind you, this happens at an ambient temperature of about 29 °C, not 35. "
There is probably more but I didn't want to waste more time into it
I own and like the phone but the thermals are not the best and I just have said objectively what is the situation right now. Many other phones with the SD888 chipset are suffering from the same issues
assasss said:
@Kemez
In Munich, Germany which is not a "hot" country.
Nonsense? Not sure why you have that attitude but there are multiple threads on Zentalk forums about this issue.
Example 1: https://zentalk.asus.com/en/discussion/51884/shut-down-camera-overheating#latest
Example 2: https://zentalk.asus.com/en/discussion/49295/heating-issues-asus-zenfone-8#latest
Which says: "I am barely able to record 6 minutes of 4k 60 fps before the camera app shuts down. And mind you, this happens at an ambient temperature of about 29 °C, not 35. "
There is probably more but I didn't want to waste more time into it
I own and like the phone but the thermals are not the best and I just have said objectively what is the situation right now. Many other phones with the SD888 chipset are suffering from the same issues
Click to expand...
Click to collapse
So you live in the same climate as I do. My phone gave me a warning on recording once, when in direct sunlight at around 34C. It has been after around 15min of recording and cooling it in shade or water instantly allowed me to record more.
You say that the camera closes after few minutes of recording. So this happens to you often? Not in a forum - how many times did you have it?
I own flagship phones (LG, Huawei, Asus) since many years and they all get warm under some conditions. Never had any issues because of that.
Kemez said:
So you live in the same climate as I do. My phone gave me a warning on recording once, when in direct sunlight at around 34C. It has been after around 15min of recording and cooling it in shade or water instantly allowed me to record more.
You say that the camera closes after few minutes of recording. So this happens to you often? Not in a forum - how many times did you have it?
I own flagship phones (LG, Huawei, Asus) since many years and they all get warm under some conditions. Never had any issues because of that.
Click to expand...
Click to collapse
So it happened to me 3 times and I switched the video recording to FHD 60fps after that.
As I said, I really like the phone, for my usage it is really good and I am sacrificing the thermals for the small form factor and performance. I anyway rarely record videos in general, so I am not at a loss.
For comparison on my previous pixel 3 during summer when the phone is in the car under direct sunlight and android auto is connected I would get the "phone is getting hot" once or twice a year. With the Zenfone 8 it never happened and it even almost doesn't get hot at all under the same circumstances, probably due to a more powerful SoC. But it does get pretty warm during gaming, I think without a case it would be impossible to hold the phone
Hello,
any news on this topic?
I found out that Asus released several firmwares since August:
Zenfone 8|Smartphone|ASUS Italia
A new compact powerful choice: Flagship 5G processor · 120Hz AMOLED display · 4000mAh battery · Pro-grade dual rear and front camera · IP68 water resistant
www.asus.com
Thanks!
beta_serpico said:
Hello,
any news on this topic?
I found out that Asus released several firmwares since August:
Zenfone 8|Smartphone|ASUS Italia
A new compact powerful choice: Flagship 5G processor · 120Hz AMOLED display · 4000mAh battery · Pro-grade dual rear and front camera · IP68 water resistant
www.asus.com
Thanks!
Click to expand...
Click to collapse
I have the phone since August 28. Had heating issues until the update on September 3rd. Never since then.
Blumi511 said:
I have the phone since August 28. Had heating issues until the update on September 3rd. Never since then.
Click to expand...
Click to collapse
Thanks @Blumi511!!!
Think carefully about buying this phone. I had a problem with a dying phone and it just came back om repair yesterday. It works, but the ASUS support leaves a lot to be desired. It heats up similarly like before, but what is disturbing only in one place - next to the camera. Previously, heat was distributed over the entire surface of device. Next thing, on sides of the back, you can see that the phone was opened. Previously the color at the edges was uniformly black, now the edges are kind of transparent and there are dust spots underneath them. Premium phone ... please ... my phone is not looking good anymore just because the manufacturer made a mistake at the production stage and it had to be repaired .... and something that annoyed me, when I was looking at the phone, I noticed that a few small particles of dust had fallen under the glass with the cameras. They are not too big to create problems with the pictures, but they are there and you can see them. I am slightly disappointed that the phone returned from an authorized service with something like that.
I have the phone about two months now, normal heat during random bit heavy tasks.
It heats a bit while playing PUBG in highest graphic setting but nothing crazy, you can play full hour with slight heat, I point fan to my phone and hands all ok.
After installing LinageOS I keep battery saver on all the time and phone doesn't heat and battery last all day long, got about 8 hours of display time (but didn't play any game all casual apps/shopping reading and music, some YouTube).
Seems like the 888 chip got more power than needed, I wish Asus make same compact phone with Dimensity or 7xx chips, that would more suits the type of people uses this phone, I think.

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