Heat problems with custom roms on Oreo - Samsung Galaxy Note 8 Questions and Answers

hi there.
I almost try every oreo rom on xda.
in summer (35 degrees)
30 min idle battery temprature is like 33 degrees on oreo . On nougat I almost see 28-29 degrees. On heavy usage I saw 40.5 degrees (nougat max reached 36.5)
in winter ( lets say with room temprature 25 degrees)
I saw only 23-24 battery temp. degrees on nougat. Oreo gives me 30.5 degrees idle.
I am confused with that.
Does the issue about with rom?
or kernel.
or oreo?
What are your experiences about that issue?
I have measured temps via ampere.
Especially I need information that people use stock oreo rom and stock kernel.
Any help will be appreciated.

Related

[Q] Battery Temperature Always 30C???

Hey everyone,
I seem to be having an issue with the battery temperature sensor. It will always say 30 Celsius even if I can feel the heat of the battery through the case. Is this a known issue with the tabs? Using sensor test, I can see that a temperature sensor works and is constantly updating, showing temps from 30C to 40C. I'm running stock rooted EC02 with KhasMek Voodoo Plus OC 1.4Ghz.
Thanks for your help.
xz124 said:
Hey everyone,
I seem to be having an issue with the battery temperature sensor. It will always say 30 Celsius even if I can feel the heat of the battery through the case. Is this a known issue with the tabs? Using sensor test, I can see that a temperature sensor works and is constantly updating, showing temps from 30C to 40C. I'm running stock rooted EC02 with KhasMek Voodoo Plus OC 1.4Ghz.
Thanks for your help.
Click to expand...
Click to collapse
There are 2 main reasons for a constant temperature:
1- A third-party battery is used which have its temperature sensor removed, you will usually see 0.1 variations, like 30.0 and 30.1 at all times. or more often 25.0 and 25.1 (not sure why though).
2- the ROM or kernel is broken with regards to providing temperature to battery apps. Battery apps get temperature from Android OS using well documented API, which have not changed since the very beginning of Android. See here for more information about the API: http://developer.android.com/reference/android/os/BatteryManager.html
Unfortunately it seems to affect a few ROMs now-a-days.
EDIT: Are you using a S3 with CM-based or OMNI (AOSP-based) ROMs?

Battery usage has never lasted a full day

So as the title says, my note has never lasted a full day on a full charge. Even with moderate use, it lasts maybe 15-16 hours. With heavy use, playing a game or 2 or using the browser, it lasts maybe 9 hours. From the first day I got it I've rooted it and have used only the romow rom.
Currently on the version 7.5 HD.
BB: LA4
Kernal: AbyssNote 3.3
Each time I flash a new rom I always do a battery calibration test and even wipe the battery stats on recovery.
I notice people get a full day's use from the battery and maybe even more. Is there something I am missing? My wi-fi is always off unless I am at home or when needed. I turn the data connection off too most of the times. When I look at the battery usage in settings (I do this often), the display shows the most usage, always more than 65%, and nothing else. The android system, android OS, cell standby and whatever else are always less than 10%. Is there something I can do to increase the time the battery lasts? I'd like to get a full day's worth, and even more
Use black backgrounds and dark apps? Amoleds don't use power to display black. Whites will suck your battery dry.
Sent from my GT-I9000 using xda premium
Recently i visited a samsung service centre. I asked the engineer as what kind of problems people have reported in the note other than screen issues and he said battery issues and people ve got their batteries replaced. Maybe u want to get urs checked.
Sent from my GT-I5801 using XDA App
I would also suggest get your battery checked. But more than likely, Samsung will say 15-16 hours of moderate use is normal.
I am currently using Rocket ROM v20 with Abyss 3.5b. I have had it without charge for 12 hours now and from 100% it is at 82% right now. So far today I have watch an ep of anime (22mins long), gaming for 1.5 hours, had 4 phone calls (total of 42 mins). I think only draining 18% after all of that is impressive.
Z-Blade said:
I would also suggest get your battery checked. But more than likely, Samsung will say 15-16 hours of moderate use is normal.
I am currently using Rocket ROM v20 with Abyss 3.5b. I have had it without charge for 12 hours now and from 100% it is at 82% right now. So far today I have watch an ep of anime (22mins long), gaming for 1.5 hours, had 4 phone calls (total of 42 mins). I think only draining 18% after all of that is impressive.
Click to expand...
Click to collapse
That is impressive. If I watch a 40 min show only, my battery would go down from 100% to 65. And if I play a game for an hour (depends on the cpu/ram usage the game takes up to), then my battery is at 20%. And this has been since the beginning. The moderate use I am talking about is calls here and there, texting, playing a game for maybe 20 min. Like today I played Shadowgun for a total of an hour, where's my water for 20 min, and texted a bit, made 2 calls, and used dolphin browser for 10 min. It hasnt even been 12 hours and my battery is at 20%. Ahhh I think I just need to get a new battery.
I know roms/kernals/basebands all factor into battery usage as well, so are there any suggestions as to which one might be good with this? Aesthetically I love romow's rom. I love every layout of it. Rocket rom is a little too "in your face" kind of, atleast for me.
Im always set my brightness to 0% and im not using auto brightness. What if you change the kernel to FM 2.0 Kernel. i find it saves more batt than abyss kernel.
dr. xp55 said:
So as the title says, my note has never lasted a full day on a full charge. Even with moderate use, it lasts maybe 15-16 hours. With heavy use, playing a game or 2 or using the browser, it lasts maybe 9 hours. From the first day I got it I've rooted it and have used only the romow rom.
Currently on the version 7.5 HD.
BB: LA4
Kernal: AbyssNote 3.3
Each time I flash a new rom I always do a battery calibration test and even wipe the battery stats on recovery.
I notice people get a full day's use from the battery and maybe even more. Is there something I am missing? My wi-fi is always off unless I am at home or when needed. I turn the data connection off too most of the times. When I look at the battery usage in settings (I do this often), the display shows the most usage, always more than 65%, and nothing else. The android system, android OS, cell standby and whatever else are always less than 10%. Is there something I can do to increase the time the battery lasts? I'd like to get a full day's worth, and even more
Click to expand...
Click to collapse
Time to get one of these: 4500mAh battery for Galaxy Note
Also try to use Go Launcher's task killer and low usage of 3G.
dr. xp55 said:
That is impressive. If I watch a 40 min show only, my battery would go down from 100% to 65. And if I play a game for an hour (depends on the cpu/ram usage the game takes up to), then my battery is at 20%. And this has been since the beginning. The moderate use I am talking about is calls here and there, texting, playing a game for maybe 20 min. Like today I played Shadowgun for a total of an hour, where's my water for 20 min, and texted a bit, made 2 calls, and used dolphin browser for 10 min. It hasnt even been 12 hours and my battery is at 20%. Ahhh I think I just need to get a new battery.
I know roms/kernals/basebands all factor into battery usage as well, so are there any suggestions as to which one might be good with this? Aesthetically I love romow's rom. I love every layout of it. Rocket rom is a little too "in your face" kind of, atleast for me.
Click to expand...
Click to collapse
I actually like the "in your face" look, of course that is my preference. I heard that checkrom is good for battery but in all honesty, I have tried a couple of roms and there isn't a huge difference between them. The biggest difference with battery usage I have notice is when you start using a OCing app with profiles like SetCPU. Tweak the power usage with each speed step and create profiles for when the screen is off, on call and etc.
dr. xp55 said:
So as the title says, my note has never lasted a full day on a full charge. Even with moderate use, it lasts maybe 15-16 hours. With heavy use, playing a game or 2 or using the browser, it lasts maybe 9 hours. From the first day I got it I've rooted it and have used only the romow rom.
Click to expand...
Click to collapse
How hot does it get compared to room temp? 15C warmer? 20C warmer?
I'd really love to work with some people to come up with a step by step guide on how to track down and fix battery drain / over heat problems.
The best way to waste power is to make heat with radio chip and GPU. Second best is to make light with torch or screen.
I know with the change in battery technology, some old practice no longer applies but I still follow the old rule of thumb when I get a new equipment.
When I got my Note, the very first thing I did was charge the phone for 12 hours before actually using it. You might want to give that a shot, the reading on the battery may not always be correct.
dr. xp55 said:
So as the title says, my note has never lasted a full day on a full charge. Even with moderate use, it lasts maybe 15-16 hours. With heavy use, playing a game or 2 or using the browser, it lasts maybe 9 hours. From the first day I got it I've rooted it and have used only the romow rom.
Currently on the version 7.5 HD.
BB: LA4
Kernal: AbyssNote 3.3
Each time I flash a new rom I always do a battery calibration test and even wipe the battery stats on recovery.
I notice people get a full day's use from the battery and maybe even more. Is there something I am missing? My wi-fi is always off unless I am at home or when needed. I turn the data connection off too most of the times. When I look at the battery usage in settings (I do this often), the display shows the most usage, always more than 65%, and nothing else. The android system, android OS, cell standby and whatever else are always less than 10%. Is there something I can do to increase the time the battery lasts? I'd like to get a full day's worth, and even more
Click to expand...
Click to collapse
may i know which governor are you using? try to update the AbyssNote kernel to latest v3.5c and try either the AbyssPlug, lulzactive or SmartassV2 governor then see if there's any difference
Running stock LA4 ROM here. Brightness usually on lowest. If you don't touch the phone, it can last on standby a week. See below how it only lost 3% after 17 hours. Of course as the screen was off all the time, the internal processes take most of the power consumed.
After more than 1 day I still have 50% battery. See how it drops fast when I'm using the phone to read and download web pages.
I have the self same issue - battery hardly lasts a day - I just about manage to get home 8 hours later on critical - to hook it up to mains to charge.
All I use it during the course of the day - is browsing forums via tapatalk, viewing the occasional email. No hectic media consumption and music playing.
I am trying a different route now - it was running on stock firmware - over the weekend I've taken the following steps.
Rooted my device , installed CheckRom Revo v5 , running speedmod kernel with modem LA4
Hoping to see how that improves things.
dr. xp55 said:
That is impressive. If I watch a 40 min show only, my battery would go down from 100% to 65. And if I play a game for an hour (depends on the cpu/ram usage the game takes up to), then my battery is at 20%. And this has been since the beginning. The moderate use I am talking about is calls here and there, texting, playing a game for maybe 20 min. Like today I played Shadowgun for a total of an hour, where's my water for 20 min, and texted a bit, made 2 calls, and used dolphin browser for 10 min. It hasnt even been 12 hours and my battery is at 20%. Ahhh I think I just need to get a new battery.
Click to expand...
Click to collapse
First of all, you should post a screen shot of your battery graph.
How bright is your screen? If it's at 100%, then you're going to chew through battery very fast.
Games that require very high cpu usage will kill the battery.
Some games I can play forever on - some games, like Plants vs zombies, or puzzle quest 2, kill the battery. I can probably get 3-4 hours worth on a battery, and that's with a very low screen brightness. That's the price to pay with a fast cpu.
Dolphin is quite the battery hog too. I try to avoid it - I browse for hours with opera mobile, especially with the green on black mod.
- Frank
play_dead said:
may i know which governor are you using? try to update the AbyssNote kernel to latest v3.5c and try either the AbyssPlug, lulzactive or SmartassV2 governor then see if there's any difference
Click to expand...
Click to collapse
I use the ondemand governor usually with overclocked to 1600. The only profile I have set is the temperature over-heat (temperature above 104 F, 40.3 C) and i've set it to conservative with max cpu to 1200. What should I set the screen off and in call frequency to be? I have just updated to AbyssNote 3.5 and changed the governor to AbyssPlug. Lets see how it pans out tm
My voltage settings are:
1704 MHz - 1375
1664 MHz - 1350
1600 MHz - 1325
1400 MHz - 1300
1200 MHz - 1250
1000 - 1125
800 - 1000
500 - 900
200 - 850
100 - 850
ChodTheWacko said:
First of all, you should post a screen shot of your battery graph.
How bright is your screen? If it's at 100%, then you're going to chew through battery very fast.
Games that require very high cpu usage will kill the battery.
Some games I can play forever on - some games, like Plants vs zombies, or puzzle quest 2, kill the battery. I can probably get 3-4 hours worth on a battery, and that's with a very low screen brightness. That's the price to pay with a fast cpu.
Dolphin is quite the battery hog too. I try to avoid it - I browse for hours with opera mobile, especially with the green on black mod.
- Frank
Click to expand...
Click to collapse
Whats the best app for battery statistics? I will get the graph and post a screenshot tm. My brightness is usually 50 % set in the middle always. Today I put my brightness all the way down to 0, I literally did not use my phone, maybe turned it on couple times during the day for 2 min, sent 1 text, played a game for 5 min, and used a medical application for 10 min, just to check the battery. With that much minimal amount of phone usage, after about 9 hours my battery was at 79%. Is that normal?
Just wanted to say thanks for the help also
it should make a difference. for battery monitoring, I'm using Battery Monitor widget. you may give it a try.
Sent from my GT-N7000 using XDA App
dr. xp55 said:
I use the ondemand governor usually with overclocked to 1600. The only profile I have set is the temperature over-heat (temperature above 104 F, 40.3 C) and i've set it to conservative with max cpu to 1200. What should I set the screen off and in call frequency to be? I have just updated to AbyssNote 3.5 and changed the governor to AbyssPlug. Lets see how it pans out tm
My voltage settings are:
1704 MHz - 1375
1664 MHz - 1350
1600 MHz - 1325
1400 MHz - 1300
1200 MHz - 1250
1000 - 1125
800 - 1000
500 - 900
200 - 850
100 - 850
Whats the best app for battery statistics? I will get the graph and post a screenshot tm. My brightness is usually 50 % set in the middle always. Today I put my brightness all the way down to 0, I literally did not use my phone, maybe turned it on couple times during the day for 2 min, sent 1 text, played a game for 5 min, and used a medical application for 10 min, just to check the battery. With that much minimal amount of phone usage, after about 9 hours my battery was at 79%. Is that normal?
Just wanted to say thanks for the help also
Click to expand...
Click to collapse
Install better battery stats and check for kernel wakelocks. If there exists some that last longer than 10 mins then some app is involved in the battery leak

twrp backup cpu 71 degrees celcius Is this normal ?

Just want to buy the phone from a friend but noticed twrp reads 71 degrees when doing backup , no compression or anything
Also battery drains 8%/h no wakelocks, all managed
is this the normal , what can i do to reduce the temp in twrp...
and also battery drain ...no wakelocks

heating problem in every oreo rom

In nougat roms temp stays at 33 to 35 at normal usage but in oreo roms temp always reaches to 3 9 to 41 in normal usage why so much deference
sorry, can't verify that:
which kernel? and which governor?
you've spent 61% of time at 1400MHz, so the temperature is not a surprise.
Use NOS or use init fix processes of Gabriel kernel. There's something is non fixed in Oreo is ramping up the CPU which causes the heat and battery drain.
(some rom has internet and charging heat too)

100 percent cpu usage in moto g5s plus after installing android 11 pixel experience.

After installing pixel experience , although it is great and smooth too but my cpu remains at 100 percent it lowers for 0.1 second then goes back to 100 , battery and charging time are also becoming worst , I have used avast to full scan my phone and have even installed the rom 3-4 times still it's the same problem cpu at 100 percent usage can anyone help me ?

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