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My gt-i9192 can get a bit hot. Reaching even 45 Celsius when I am outside using for example the maps app (needs gps, data and wifi (it claims it makes GPS more accurate and it seems to do)). or a game or browsing the web. Specially if the environment temperature is high (I consider 25º or so "high" for environment temperature). I am not sure if 45 is too much or if it is just okay fine. It does get uncomfortable and the temperature guard app defaults at 40º for the "too hot" warning.
How hot is too hot?
vexorian said:
My gt-i9192 can get a bit hot. Reaching even 45 Celsius when I am outside using for example the maps app (needs gps, data and wifi (it claims it makes GPS more accurate and it seems to do)). or a game or browsing the web. Specially if the environment temperature is high (I consider 25º or so "high" for environment temperature). I am not sure if 45 is too much or if it is just okay fine. It does get uncomfortable and the temperature guard app defaults at 40º for the "too hot" warning.
How hot is too hot?
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Click to collapse
Keeping GPS on does get hot, particularly if you are using a navigation app. Depending on the games, some times it can be also demanding. But if you also get 45 degrees on browsing, than something is wrong.
You sure if the app is reporting the correct temperature? 45º should be warm to hold in hand (a feel-able temperature).
TNCS said:
Keeping GPS on does get hot, particularly if you are using a navigation app. Depending on the games, some times it can be also demanding. But if you also get 45 degrees on browsing, than something is wrong.
You sure if the app is reporting the correct temperature? 45º should be warm to hold in hand (a feel-able temperature).
Click to expand...
Click to collapse
Sure, I feel the hotness.
I used to get 45 degrees while browsing if the environment temperature is hot. It hasn't happened in a while, recently I moved to a custom kernel, so maybe that fixed it.
My i9190 has been getting really hot lately, and whenever it does the battery drains crazy fast (about 35%/hr). Strange thing is, the task manager shows no apps consuming CPU nor RAM.
I had a similar problem with my old S2 that started after I had had it for about 9 months. At the start of a day battery consumption wasn't bad, but if I used it for an extended period of time it would heat up, and battery consumption seemed to rise linearly with the amount of heat the phone was emitting. There were incidents where it drained to half from full in a matter of less than an hour.
I welcome. I have i9192 and at me temperature at the game on facebook also achieved 45 "C and I returned it to the shop. At other users of this phone what temperature is while looking the Internet through??Can the shop he will accept the warranty??
Ah, I did forget one thing, since I didn't stay on original ROM for long. For those that are on original Samsung ROM, I guess it normal, since the default CPU governor is set on 'performance' mode. Your CPU is running on the highest speed all the time, and most original ROM does not enter deep sleep.
JoeCastellon: If you are on the original ROM, it would be your problem of battery drain. Using a custom Kernel or ROM like vexorian would solve your problem.
groda: Same, if you are on original ROM, running any app even if it not games, it would raise the temperature at a very rapid rate.
I thank for the reply. When install root and to lower the clocking of the processor? by the way, the new ROM will lower the temperature?
My latest "[doh this got too hot]" experience was on Sunday, I was using c0bain's kernel which AFAIK has the "on demand" governor.
I am now trying SilviuMik's ROM, will test during a week and see if the hotness happens again.
groda said:
I thank for the reply. When install root and to lower the clocking of the processor? by the way, the new ROM will lower the temperature?
Click to expand...
Click to collapse
Custom/modified ROM or kernel will lower the temperature. Original Samsung ROM - no.
Which ROM you recommend?
groda said:
Which ROM you recommend?
Click to expand...
Click to collapse
Subjective... I use Slimrom myself. Note that flashing custom ROM/kernel will trip Knox if your phone has it.
heavy gamer
Just strap an aluminum heatsink to it and you're all set
Sent from my SGH-M919 using xda app-developers app
For me a battery is overheating. I want install root and new kernel. I have a question. Which kernel will lower the temperature for me? As install new kernel could update whether I will be through wi fi??
The kernel itself will not magically lower the temperature. You will need to manually undervolt the cores to achieve that, which requires a custom kernel which supports undervolting.
Changing your kernel will prevent OTA updates, if that's what you're referring to with the update through WiFi
My cores are working now on the maximum. install the root can I lower the clocking of the processor this way?
It which kernel will be good for my i9192? What thread is it possible to find him in?
Yes with kernel and appropriate app you can adjust clock settings.
Not sure if 9192 has a custom kernel that supports this. Check the development subforums
Okay found one.
http://forum.xda-developers.com/showthread.php?t=2431953
Is there a way to reduce it? My phone slows to the pace of a sloth far too frequently and it seems correlated with temp.
I'm assuming that's the cause because when I look at the CPUs in CPUz the last two go down to 633MHz when things are getting slow. Also seems worse with a case but could be my confirmation bias. This is particularly apparent with the camera, Maps, and when coming out of doze.
Is there a more conclusive way to figure out what is causing my Nexus 5X's occasionally brutal performance?
Sent from my Nexus 5X using Tapatalk
Well, what exactly are you doing with your phone that's causing it to throttle itself? I think with a stock kernel the phone begins to throttle and eventually shut off the Big cluster at 36 or 37 degrees Celsius (someone correct me if I'm wrong). If you flashed a custom kernel, most here have had that limit raised to 46C.
Last weekend I used my phone quite a bit for strenuous tasks including Navigation, Google Maps, lots and lots of pictures and 1080P video. The phone got noticeably warmer, but when I checked my kernel management app, the CPU temperature wasn't even close to the throttle temperature. Unless you're gaming or constantly benchmarking your phone this really shouldn't be a problem. Especially when coming out of Doze. The phone doesn't immediately enter Doze, it waits a while and there are factors that play into its decision to even enter doze in the first place (like laying on a flat surface for X amount of time). So when a phone is exiting Doze because of your input (turning the screen on) the CPU should be quite cool (maybe 22+ degrees). There's no thermal throttling there. The Big cluster shuts off when the screen is off for the sake of battery life, so maybe the lag that you're experiencing stems from the lack of the Big cluster being on for the first second or so when waking the phone back up.
I'll agree that the SD808 isn't a stellar chip; maybe even embarrassing. It's not blisteringly fast, but it certainly isn't slow. There are ways to speed up performance and improve battery life at the same time, which I'm sure you'd appreciate. Unfortunately you have not specified if you're running a custom ROM or kernel, so that's pretty much all the advice and information I can give you right now. But, if you're currently running stock, I'd highly recommend you unlock your bootloader and try out some of the custom (and more lightweight) ROMs that this community has to offer as well as some great kernels. That should make a noticeable difference right off the bat. Then you can dive into the nitty gritty details of tweaking and whatnot if you desire. Check out the links in my signature as a starting point. If you're looking for optimization and speed (like I do) then you'll be impressed.
Thanks for your reply.
I switched to ElementalX about a week ago and it may be a bit better now but it's hard to tell. I've also been using a spigen slim case, maybe that is causing heat to accumulate too.
I don't game. My usage is Maps, Facebook, Snapchat, camera, chrome, hangouts, Spotify, and textra.
I use greenify and amplify as well on xposed. Disabling xposed doesn't seem to make a difference.
Can you confirm that ElementalX throttles at 46C and stock at 36C?
I'm interested in your recommendations. When running geekbench it takes about 9 minutes for things to really slow down.
Sent from my Nexus 5X using Tapatalk
If you search the ElementalX thread you can see that the developer, Flar2, was getting very frustrated with the thermal throttling on this device (others were too, as well). You can read through the progression and, eventually, the decision to apply a "thermal fix" or raise the thermal throttling limit. The threshold is 46C now. Confirmed. The stock thermal throttle threshold is 10 degrees less than that from what I've read. I also remember reading that Franco did a fair amount of research into the throttling issue and found that the CPU was capable of going over 50C with no issues (but aren't recommended), so the limit in place now by the ElementalX kernel is a safe one that shouldn't be exceeded. He probably didn't make it any higher so he wouldn't be found liable by any users if they overheat or damage their phones.
I have no experience with xposed and everytime there's a compatibility issue, hard reboots, etc. it's always because of Xposed. So.. Yeah.
I also do not use any tweaking apps that supposedly save battery or whatever. I let the operating system take care of that. I do use the L-Speed app (again, in my signature) to disable certain things like debug logs and what not to speed things up slightly. Again, I highly recommend trying Ubermallow and Phasma Kernel as those have been my choice, after trying many others, for some time now. Also, I'd look into the interactive governor tweaks after you've settled on a ROM and kernel combination that you like. That's where you can fine tune the way the CPU governor on the phone behaves and can really make a difference in battery life and fluidity of the device.
Lastly, a case can make a difference with cooling but I've never really found it to be an issue. Maybe I'm just not hard on my phone enough.
ryanwalexander said:
Is there a way to reduce it? My phone slows to the pace of a sloth far too frequently and it seems correlated with temp.
I'm assuming that's the cause because when I look at the CPUs in CPUz the last two go down to 633MHz when things are getting slow. Also seems worse with a case but could be my confirmation bias. This is particularly apparent with the camera, Maps, and when coming out of doze.
Is there a more conclusive way to figure out what is causing my Nexus 5X's occasionally brutal performance?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
A member on the 6p forum came up with a hard mod that does this with a special thermal paste better then stock . Requires tearing apart the device though ...so its risky but his results looked promising
Sent from my Nexus 6P using XDA Free mobile app
Google just agreed to take back my device so I only have a few days to try things and make my decision on whether to keep the phone or not.
Thank you for your thoughtful responses and suggestions.
Since I started using the phone outside of the case it actually seems much better.
Regarding the extreme slowness coming out of doze, it only occurs when in doze for a long time. Presumably because the phone tries to catch up on all the sync activity that's been paused for the last 12h or so.
Sent from my Nexus 5X using Tapatalk
I think I'll try your suggestions and remove greenify, amplify, and xposed to see if things improve. I do agree that the system should be managing those things.
Sent from my Nexus 5X using Tapatalk
Yeah, give it a few days. There are many ways to combat the throttling. Got my phone to 41C today while using it out in the sun. The Big cluster is limited to 633MHz at 36C and shut off at 41CC. The 46C built into the kernel is most likely for the LITTLE cluster to start getting throttled. Check the attached pics below.
Thanks. Btw what ROM and app is that?
Sent from my Nexus 5X using Tapatalk
ryanwalexander said:
Thanks. Btw what ROM and app is that?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
ROM and Kernel are in my signature. The app for managing the kernel is Elementalx Kernel Manager and the app to add CPU usage overlays and stuff is called Trepn Profiler.
Sounds like the opposite to me, the phone might be slow because of software on the device not playing nice which causes the SoC to work over time (normal computing + rogue app computing) and can cause the device to over heat and throttle.
There's no reason the device should be slow after a period of doze. That tells me the device is having software caused slowdowns that are not related to thermal throttling.
It takes roughly 12 minutes of 100% sustained load (only synthetic benchmarks) to throttle the 2x A57 cluster, and I've never seen the 4x A53 cluster throttle under any conditions including hours of heavy gaming they stay at 1.4Ghz at all times.
bblzd said:
Sounds like the opposite to me, the phone might be slow because of software on the device not playing nice which causes the SoC to work over time (normal computing + rogue app computing) and can cause the device to over heat and throttle.
There's no reason the device should be slow after a period of doze. That tells me the device is having software caused slowdowns that are not related to thermal throttling.
It takes roughly 12 minutes of 100% sustained load (only synthetic benchmarks) to throttle the 2x A57 cluster, and I've never seen the 4x A53 cluster throttle under any conditions including hours of heavy gaming they stay at 1.4Ghz at all times.
Click to expand...
Click to collapse
Yesterday I was using GPS to drive and Spotify was streaming. The phone got really hot and unresponsive and Spotify began to stutter. Was unable to even launch textra to text someone.
This of course only started maybe 10m into the drive. The phone is fine while cold.
Maybe I have a defective device but my benchmark stress tests give similar results to other people.
Sent from my Nexus 5X using Tapatalk
ryanwalexander said:
Yesterday I was using GPS to drive and Spotify was streaming. The phone got really hot and unresponsive and Spotify began to stutter. Was unable to even launch textra to text someone.
This of course only started maybe 10m into the drive. The phone is fine while cold.
Maybe I have a defective device but my benchmark stress tests give similar results to other people.
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
this is consistent with my experience. GPS and spotify (actually almost any app used concurrently with spotify) will cause the phone to have horrible lag.
also, don't text and drive
Interestingly, today when the phone was on battery saver it seemed much faster. Maybe more throttling could help things more than less?
Of course not exactly faster, but more consistent and no unbearable lagging.
Yesterday I flashed the stock firmware files other than user data. Unfortunately I lost root and it seems like I now need to reformat data to get TWRP going again but until then I'm fully stock. Does anyone know a way around that?
I haven't done enough testing to be sure but things seem to be running more smoothly for now than they did with root and ElementalX 1.06. However just writing this i can feel the phone heating up and becoming less responsive. The bottom 2 cores are offline with SoC at 36C and CPU at 56C when I switch to devcheck to check. Other 4 cores at 1440MHz.
ideaman924 said:
I've been having issues with thermal as well. Installed ElementalX along with the governer tweaks GhostPepper profile. When charging (this makes the device really hot) music begins to stutter, coming out of Viper4Android.
When not charging, slow accumulation of heat makes music stutter, same software used. Go figure. Maybe V4A is too demanding on the 808 chip, but I fear if this doesn't cut it, then I'll have to switch phones the next chance I get.
Oddly, this happens when screen is off - the music stutterings. I've thought about Doze and battery saving apps, and have disabled Doze for V4A through the battery optimize pane.
The phone constantly loses battery, around 2~5% an hour, I know thats not too much but my previous phone lost about 1% every three hours. This was a Note 3 Neo by the way. Installing Xposed and Amplify, Greenify and PowerNap should help, but I've had stability issues when using xposed. Maybe later.
Oh, and one last thing. My phone's thermal limit is set to 55 degrees Celsius, but it still feels like it throttles at around 39 or so. Maybe EX Kernel Manager isn't saving the changes, but either way... It throttles too much!
Click to expand...
Click to collapse
That could be because of the custom software and CPU tweaks or your V4A installation. Using those settings always has the potential to cause issues and I would troubleshoot there first.
Minimum CPU performance with stock settings is 4x A53 cores at 1.44Ghz which is still fast. If you've ever use one of the more recent Moto G devices you'd know it doesn't stutter playing music when it's cold and neither does this device when it's hot.
Sent from my Nexus 5X using XDA-Developers mobile app
Setting the throttling temp limit to high will decrease performance, see here for details:
http://forum.xda-developers.com/nexus-5x/general/thermal-throttling-temp-performance-test-t3388559
Alcolawl said:
Yeah, give it a few days. There are many ways to combat the throttling. Got my phone to 41C today while using it out in the sun. The Big cluster is limited to 633MHz at 36C and shut off at 41CC. The 46C built into the kernel is most likely for the LITTLE cluster to start getting throttled. Check the attached pics below.
Click to expand...
Click to collapse
Is this based on battery temperature or cpu temperature?
leo.best1398 said:
Is this based on battery temperature or cpu temperature?
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Click to collapse
CPU temperature but I beleive the phone also has ways of combating high battery temps as well.
Alcolawl said:
CPU temperature but I beleive the phone also has ways of combating high battery temps as well.
Click to expand...
Click to collapse
If its cpu temp then no wonder it's always throttling the cpu is nearly always above 40°c.
What do you mean ''combating''?
Sent from my Nexus 5X using Tapatalk
I started another thread that has yielded zero useful information so I thought I would be very explicit this time about what I am looking for. I'm trying to figure out if I should RMA my device or not. My device is currently 98F in a 70F room and I'm doing nothing but typing this message. This seems like a high temperature to me but for all I know it's normal for this device. If other people who use battery monitor apps that include device temperature readings could let me know what temp their Pixel XL is operating at I would appreciate it and it will help me decide whether I should RMA this device or not. Thanks in advance if anyone actually responds with useful information.
31C at 26C
fatapia said:
31C at 26C
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Click to collapse
That's the same temp as mine after conversion. Maybe that's a normal temp for this phone. Thanks for the response!
The Pixel is designed really differently than my previous phones so I'm having trouble figuring out what is normal on a Pixel. The CPU frequencies that this phone operates at would result in a significant performance lag on my previous phone, for example, but with the Pixel they result in the phone running very smooth and fast.
I have not messed with my frequencies, I'm running OctOS with the Elemental kernel at whatever it ships at.
so I went ahead and let my phone sit in my center console on my way home. for some reason the sun cooks this area of my truck and it's hot to touch even with the AC. After my trip home in 103F weather it was at 42C and did not shut down (I was streaming music over bluetooth from amazon music)
Idle : 30 - 35 C (phone goes below 30 C only when not used for more than 15-20 mins in a very cool room).
Medium Load: 35-40 C
Charging in the car, Charging while using Chrome etc: 40-44 C
Heavy Load: 42-48 C
I have owned Nexus 5, Nexus 6 and Nexus 6p previously. This phone definitely runs hotter than all of them.
I got a replacement from Google, but it is the same problem.
fatapia said:
I have not messed with my frequencies, I'm running OctOS with the Elemental kernel at whatever it ships at.
so I went ahead and let my phone sit in my center console on my way home. for some reason the sun cooks this area of my truck and it's hot to touch even with the AC. After my trip home in 103F weather it was at 42C and did not shut down (I was streaming music over bluetooth from amazon music)
Click to expand...
Click to collapse
I don't have air conditioning in my car, it was very hot outside, the phone was sitting in a cradle in direct sunlight and I was using the car charger, GPS and Spotify all at the same time--so it's possible my phone got much hotter than 42C when it did shut down. But I used my Nexus 6P and Samsung Galaxy S3 and S6 under identical circumstances and none of them ever overheated and shut down. They also didn't run anywhere near as hot as the Pixel XL when idle. My phone is generally 90-100F in an air conditioned apartment when I'm doing absolutely nothing with it--and multiple people have responded with similar temps for their own phones. If the idle temp for the phone is that high it's going to get super hot when using it under more demanding circumstances.
iamjimmy said:
Idle : 30 - 35 C (phone goes below 30 C only when not used for more than 15-20 mins in a very cool room).
Medium Load: 35-40 C
Charging in the car, Charging while using Chrome etc: 40-44 C
Heavy Load: 42-48 C
I have owned Nexus 5, Nexus 6 and Nexus 6p previously. This phone definitely runs hotter than all of them.
I got a replacement from Google, but it is the same problem.
Click to expand...
Click to collapse
That really seems to be normal for this phone based on what others have been saying. Thanks for the detailed information.
jhs39 said:
That really seems to be normal for this phone based on what others have been saying. Thanks for the detailed information.
Click to expand...
Click to collapse
No problem. Have you observed higher battery drain when the CPU heats up? I'm not sure phones are meant to be that hot. I haven't seen any other flagship heating up so much.
iamjimmy said:
No problem. Have you observed higher battery drain when the CPU heats up? I'm not sure phones are meant to be that hot. I haven't seen any other flagship heating up so much.
Click to expand...
Click to collapse
I've never heard of another flagship phone that operates so hot. Battery does definitely drain faster the hotter the phone gets. But mine gets to 100F doing almost nothing.
jhs39 said:
I've never heard of another flagship phone that operates so hot. Battery does definitely drain faster the hotter the phone gets. But mine gets to 100F doing almost nothing.
Click to expand...
Click to collapse
Yes, mine get to 100-105 F range quickly on battery temperature.
Yesterday I had the following youtube, whatsapp, Browser and Gmail - I was switching back and forth and the phone was on 43 C (110 F), (granted I had 1080p video on and was chatting to a friend as well and responding to emails).. I had to then clear all apps and stop using the phone to allow it to cool down. The CPU temperature was over 58 C (measured using elemental X kernal with root access).
Something is wrong with either the 2 NEW Pixel XL phones that Google has provided me OR with the Pixel XL phone in general. There has to be a hardware problem. Maybe some phones are worse than others? Maybe it is a quality control issue?
iamjimmy said:
Yes, mine get to 100-105 F range quickly on battery temperature.
Yesterday I had the following youtube, whatsapp, Browser and Gmail - I was switching back and forth and the phone was on 43 C (110 F), (granted I had 1080p video on and was chatting to a friend as well and responding to emails).. I had to then clear all apps and stop using the phone to allow it to cool down. The CPU temperature was over 58 C (measured using elemental X kernal with root access).
Something is wrong with either the 2 NEW Pixel XL phones that Google has provided me OR with the Pixel XL phone in general. There has to be a hardware problem. Maybe some phones are worse than others? Maybe it is a quality control issue?
Click to expand...
Click to collapse
jesus 58?! mine only got to 45C and that's letting it sit in my center console while streaming youtube with the screen on
fatapia said:
jesus 58?! mine only got to 45C and that's letting it sit in my center console while streaming youtube with the screen on
Click to expand...
Click to collapse
Well, that was CPU temperature. The battery temperature was 43-44 C. I had to use a custom Kernel with Root to measure CPU temp, as most apps only give battery temp.
iamjimmy said:
Well, that was CPU temperature. The battery temperature was 43-44 C. I had to use a custom Kernel with Root to measure CPU temp, as most apps only give battery temp.
Click to expand...
Click to collapse
haha oops, I had no idea EXKM did that, just enabled it to see how my cpu fares
fatapia said:
haha oops, I had no idea EXKM did that, just enabled it to see how my cpu fares
Click to expand...
Click to collapse
Thank you. EXKM will put a persistent notification.
I would be very interested to know what your temperatures are under mid-heavy load : both the battery temp and CPU temp.
It's basic knowledge that heat destroys processors and other circuits. I have to use coolers and thermal paste etc in my home computer when it gets too hot. I can't see why it would be different for a phone.
iamjimmy said:
Thank you. EXKM will put a persistent notification.
I would be very interested to know what your temperatures are under mid-heavy load : both the battery temp and CPU temp.
It's basic knowledge that heat destroys processors and other circuits. I have to use coolers and thermal paste etc in my home computer when it gets too hot. I can't see why it would be different for a phone.
Click to expand...
Click to collapse
yeah that's why I was so shocked at the temp, get the inside hot enough and any soldered components will begin to loosen. well lets see how it does
Google tells me it's 34° and the battery is at 42.2°
I'd love to check with Daydream!
ASimpleSock said:
Google tells me it's 34° and the battery is at 42.2°
I'd love to check with Daydream!
Click to expand...
Click to collapse
The phone is known to get very hot with Daydream. I'm more concerned with how hot the phone gets under normal operating conditions. My battery goes from 80F to 100F in seconds if I do anything as light as surfing the Internet, reading my email, browsing the XDA app or using the EBay app. 100F seems to be the base temperature of my battery if I am using the phone for anything. I suspect that Google knows these phones won't last more than a couple years. I'm not sure if I should wait to find out or just get rid of this thing while it still works. At least in the Nexus phones you had the option of flashing a custom kernel and changing the governor so the phone would run cooler. You can't do that with the Pixel--the phone runs at the same temps or even worse on a custom kernel. I already tried. I've never owned one but I'm curious if the Pixel XL runs significantly warmer than an iPhone. Or for that matter a flagship Samsung phone--other than the one that blew up, obviously.
https://www.xda-developers.com/goog...s-analysis-a-remarkable-consistent-performer/
So XDA went ahead and showed what the surface temp of their pixel is under their tests
http://www.buildcomputers.net/cpu-temperature.html
I thought the temp of the cpu temp was high, but compared to other processors this is pretty average/on the low side
http://batteryuniversity.com/learn/archive/lithium_ion_safety_concerns
Turns out that's no where near as hot as it would need to be to be a safety issue for any of us.
http://bgr.com/2017/01/23/galaxy-note-7-battery-investigation/
if you're concerned why samsung exploded while ours hasn't, they have a good explanation about the construction of those batteries being flawed.
fatapia said:
https://www.xda-developers.com/goog...s-analysis-a-remarkable-consistent-performer/
So XDA went ahead and showed what the surface temp of their pixel is under their tests
http://www.buildcomputers.net/cpu-temperature.html
I thought the temp of the cpu temp was high, but compared to other processors this is pretty average/on the low side
http://batteryuniversity.com/learn/archive/lithium_ion_safety_concerns
Turns out that's no where near as hot as it would need to be to be a safety issue for any of us.
http://bgr.com/2017/01/23/galaxy-note-7-battery-investigation/
if you're concerned why samsung exploded while ours hasn't, they have a good explanation about the construction of those batteries being flawed.
Click to expand...
Click to collapse
I'm not concerned with safety. I'm sure the Pixel is perfectly safe. I'm concerned this phone is going to eventually bootloop like the Nexus 6P, the Nexus 5X and multiple LG phones. I'm not one of those people who wants to have the latest of everything and if I spend a small fortune on something I actually want it to last for a long time. I do appreciate the links you provided and will look at the info later. Thanks.
I have the exynos 990 version of the S20 FE and as we all know, the 990 is a little bit of a hot mess. However it has quite a lot to give if limited correctly.I'm running One UI 3.1 on android 11. I rooted my FE with magisk and installed Franco kernel manager. The steps below will give you good battery life and performance.
Step 1: Straight up disable the M5 mongoose cores. They are Samsung's biggest undoing.
Step2 : Limit all clock speed to 2Ghz. Trust me, the IPC on the 990 is really damn good and you don't need to worry about performance loss. Forget the benchmarks, everything just works. Getting the last 2.7ghz or 2.5ghz usually requires a significant voltage bump and you mostly wont need the speed.
Step3 : The GPU is actually just fine as is. Try to set the max clock to 370mhz, which sounds ridiculously low, but the 990's GPU was made for 1440p screens, so the UI still remains smooth even at 120Hz. I played Riptide Renegade with this setting and it was very smooth as well. You can play with this number according to how much you game, I, for the most part, don't.
My hypothesis, based on my usage of about 2 months (yeah, i rooted this bad boi about a week from purchase, screw warranty, i'm gonna be alone for life :-( ) is given below >>>>>>
Thermal throttling seems to be due to the M5 cores clocking up like crazy while doing basically nothing. This is probably mostly because Samsung uses their own "energy_step" CPU governor which still needs some work. You can try changing this to schedutil ( which is basically EAS ) and see how it fares. The GPU also ends up underclocking because the GPU has a " joint " governor ( basically ramps up and down with CPU speed to some extent, not entirely sure about this, i may be completely wrong).
I have also have put a battery charge limiter in place at 90% but that doesn't really make a difference. I use my phone quite heavily and at 120Hz but still get about 18 - 20 hours of usage (not 20h screen on time!)if on FULL CHARGE
In fact if you even disable the "BIG" i.g A77 cores, and use only the four A55 "little" ones, it's still good for daily usage. Processing time on the camera takes a bit of a hit, but you can always create a custom profile for that to enable all cores for the camera app. I have my phone skinned with the AOSP-R day/night hex installer theme.
Also huge reasons for rooting :
Tasker > for some insane automation profiles i made
Naptime, Servicely > Free extra battery life
The battery charge limiter to preserve my long term battery life.
Also a GCAM update, the scan3d APKs of BSG are getting rather good. We need to get together an tune the hell out of this sensor to get it to par with the stock camera tho, especially during night. Also no telephoto support, AFAIK. One S20FE confing shall be in the works.
Unrelated shameless self plug : https://www.youtube.com/c/siddharthlh please visit my youtube channel. It does contain some interesting tutorials for tech heads
I'm going to share this thread over on reddit with the army of disgruntled Exytoast users. if this works they will love you as a living god
3mel said:
I'm going to share this thread over on reddit with the army of disgruntled Exytoast users. if this works they will love you as a living god
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Maybe tag me in the post or something I'm siddharth_lh on reddit. I can help out there itself
done...
https://www.reddit.com/r/GalaxyS20FE/comments/ndnp0s
By "M5 mongoose cores" you mean the ones labeled as "Prime cores"? Just rooted and tried this. Will report back with results.
hectorviov said:
By "M5 mongoose cores" you mean the ones labeled as "Prime cores"? Just rooted and tried this. Will report back with results.
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Yep
bipolar unbound said:
Yep
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Did you apply these settings?
How's performance and results been?
bipolar unbound said:
Step 1: Straight up disable the M5 mongoose cores. They are Samsung's biggest undoing.
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What does this do?
Also I dont wanna set the clock speed any lower is that fine?
Cheetah1020 said:
What does this do?
Also I dont wanna set the clock speed any lower is that fine?
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if you're changing the max frequency via a kernel tweaking app you can simply change it back if you don't like it.
hectorviov said:
By "M5 mongoose cores" you mean the ones labeled as "Prime cores"? Just rooted and tried this. Will report back with results.
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How did it go?
Cheetah1020 said:
How did it go?
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It's been about a week and just 2 days ago I started seeing better battery life. The first 4-5 days were the same as before. I straight up disabled the 2 "prime" cores and the performance is basically the same. Never noticed a hiccup or a slow down. Before I rooted and tried this I was getting about 2.5 hrs SOT before I had to charge and now I'm getting about 3-3.5 hours, just a little more. Seems like less overheating (haven't check temps, just the feeling of it). What I haven't figured out is how to make the change on the GPU frequencies stay, if I set a max, it doesn't cares about it and it still goes above the limit. I'm always using 120 hz on this changes, so I'd say it's worth it.
hectorviov said:
It's been about a week and just 2 days ago I started seeing better battery life. The first 4-5 days were the same as before. I straight up disabled the 2 "prime" cores and the performance is basically the same. Never noticed a hiccup or a slow down. Before I rooted and tried this I was getting about 2.5 hrs SOT before I had to charge and now I'm getting about 3-3.5 hours, just a little more. Seems like less overheating (haven't check temps, just the feeling of it). What I haven't figured out is how to make the change on the GPU frequencies stay, if I set a max, it doesn't cares about it and it still goes above the limit. I'm always using 120 hz on this changes, so I'd say it's worth it.
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I think should wait for Android 12 to see if it gets better if not then I will do this process
Me too. Great tips!
Go to settings and search for "Limit CPU speed to 70%" and turn it on. Normally gives better battery life. Haven't seen any major bottleneck in performance.
adhikraman said:
Go to settings and search for "Limit CPU speed to 70%" and turn it on. Normally gives better battery life. Haven't seen any major bottleneck in performance.
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Doesnt it affect performance in games and stuff?
Cheetah1020 said:
Doesnt it affect performance in games and stuff?
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Haven't experienced any major performance hit in regular usage. Not a heavy gamer so your mileage might vary.
Guys...the last update for Exynos really worked? I've heard about changes in CPU governor that worked!
hectorviov said:
It's been about a week and just 2 days ago I started seeing better battery life. The first 4-5 days were the same as before. I straight up disabled the 2 "prime" cores and the performance is basically the same. Never noticed a hiccup or a slow down. Before I rooted and tried this I was getting about 2.5 hrs SOT before I had to charge and now I'm getting about 3-3.5 hours, just a little more. Seems like less overheating (haven't check temps, just the feeling of it). What I haven't figured out is how to make the change on the GPU frequencies stay, if I set a max, it doesn't cares about it and it still goes above the limit. I'm always using 120 hz on this changes, so I'd say it's worth it.
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Still that§s a really poor battery performance, and now without warranty... I will take my s20fe to samsung and if they wont repair or change it, I will be also forced to root my phone.
My experience rooting S20+ Exynos 990 following this thread:
TL;DR: Added 6-8 hours of standby battery life just from turning off prime and big cores, haven't checked on screen battery life since I don't use my phone much at work, but I wanted standby time improved.
Before turning off the prime and big cores, I got 11 hours tops on battery life. Seemingly out of nowhere the phone was always warm, despite just sitting at my desk with a very strong signal. I knew that at 12 pm, with 50% brightness, 120hz, and AOD I would expect at least 50% just gone even though I barely even used the damn thing. The straw that broke me, is that even though I was connected to wifi, I could only expect maybe at most, 3-4 hours of screen on time, which finally drove me insane. I checked out the thread sometime ago but was skeptical if it really was worth the trouble since it seemed a lengthy process. Take it from someone who hasn't rooted in a long time, just follow the guides and it all is pretty simple.
After turning off the prime and big cores, immediately thermals were so much better, after 3-5 minutes the phone was much cooler, about 5-8 degrees cooler on the chip area. Since the phone was reset, I couldn't really tell if battery was better. After the using my phone for a week rooted I can tell you, the battery difference is abysmal.
Before, I was struggling to end my day on 30-20%, now I can confidently end my day on 60-50%, depending on how much I used my phone. When idle the phone, barely sips battery, my estimate is that it went from 8-10% just idling, to 3-4% (need to check since I haven't turned on the prime cores ever since rooting). I wasn't willing to sacrifice 120hz so I always kept it on and battery life was good, however I will test with Max Hz on 96 hz, which should extend battery life.
Performance on the little cores is virtually the same, I haven't noticed any hiccups, lag or anything by that matter. I was concerned that on this thread it was mentioned that the camera took a hit, but on the S20+ nothing has changed, maybe the shutter is 0.3 seconds slower but I honestly don't notice or it doesn't bother me at all. Recording high resolution videos is no problem, and nothing really changed for me. Thermals are massively improved, if you're doing a heavy task, like recording, downloading or uploading, or something that you know requires heavy lifting, of course the phone will get warm, but not even close to how hot it would get just idling or doing the same tasks with the big or prime cores.
Since I don't play games I can't really say whether gaming has taking a hit or not, I would say that it depends on the game you're playing. You can always create a profile that enables the prime and big cores on FKM.
Overall I can say this, if you have an exynos 990 phone and getting real sucky battery life, rooting is the way to go. This phone just feels so much better with this extended battery life, and now rooting allows me to mod it as I want it or turn off things that weren't useful. Just be warned you will lose Google Pay and some apps from Samsung that use Knox, but for me what you get in return is so much valuable.
Please let me know if you have other questions from rooting the chip.
I've been using this phone for quite a while now and have been loving it on OneUI 5.1. But the one issue I have and can't seem to chase away is the awful heating issues. My phone heats up to 40C for CPU and 35C for battery even while using the least intensive applications such as reddit, Whatsapp, Youtube and even Telegram or during light multitasking and up to 45C for CPU and 39C for battery while gaming. The heat gets so bad that it's very noticeable on the surface of the phone and is a massive inconvenience most of the time. Does anyone know if this is normal? Do I need to take it to a service center?
Note: (These temps were measured using CPU monitor and AIDA64).
Laezimir said:
I've been using this phone for quite a while now and have been loving it on OneUI 5.1. But the one issue I have and can't seem to chase away is the awful heating issues. My phone heats up to 40C for CPU and 35C for battery even while using the least intensive applications such as reddit, Whatsapp, Youtube and even Telegram or during light multitasking and up to 45C for CPU and 39C for battery while gaming. The heat gets so bad that it's very noticeable on the surface of the phone and is a massive inconvenience most of the time. Does anyone know if this is normal? Do I need to take it to a service center?
Note: (These temps were measured using CPU monitor and AIDA64).
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I don't think that's normal, but when I updated to OneUI 5.1 my temps did go up. I didn't measure them, but I sure did feel them.
What you could do is download Good Guardians and install Thermal Guardian, then slide the temp -2°C (left). Also, don't keep GPS enabled or nearby scan if you aren't using them, and try selecting the Standard option in Game Optimization from Game Booster app.
Debloating also helps, especially uninstalling Facebook (and its apps) and Bixby (if you don't use it).
Clearing the system cache and repairing apps may help too. I hope these tips will be helpful for you.
~<53 its normal while gaming