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[Q] Phone does not wake up after a deep sleep

Sometimes my phone stops responding keystrokes, incoming calls and notifications. To return the phone to life I need to remove the battery, reinsert it and turn the phone on as usual. How do I solve the problem with my phone?
Firmware Version: v20d

kraleksandr said:
Sometimes my phone stops responding keystrokes, incoming calls and notifications. To return the phone to life I need to remove the battery, reinsert it and turn the phone on as usual. How do I solve the problem with my phone?
Firmware Version: v20d
Click to expand...
Click to collapse
If your phone is rooted, install another, better kernel. I think the kernel is the cause
Gesendet von meinem LG-P500 mit Tapatalk 2

What kernel should I try?

kraleksandr said:
What kernel should I try?
Click to expand...
Click to collapse
increase min cpu frequency

This problem occurs with some kernels when the min. CPU frequency is set low. Increase it to 480 MHz or something like that. It won't affect the battery much.

Thanks to all, I'll try it later. And of course I will write about the results.

[Q] Serious Nexus 5 overheating problem

Hello. I'm new with the account here, but been reading this forum for years.
I'm creating this thread because my new Nexus 5 (which I have for 20 days now) is overheating more than a normal mobile device should.
When i bought it, it had 4.4.4 Kit kat android, and I had that one for about 5 days, and in that time, I didn't notice any overheating, or maybe didn't pay attention, can't remember really.
But after installing official Lollipop 5.0.1, the device is heating pretty good even when browsing internet for 5 minutes, at about 30-40% brightness.
**** Please tell me if some of your devices are acting the same, and is it worth a try to install back an older android to try if it will stop overheating, or my device may be faulty and should I take it back for another one (or maybe switch to LG G2) ?
Because I'm still unable to post image links, i will write it down:
- Ambient temperature: 23 degrees Celsius
- The temperature sensor is taped on the back side, at the side of camera, this is where it overheats most. (even if not using camera)
- Phone temp after staying on standby with screen off: 28 C (it's not warm but it is warmer than desk which it is sitting on)
- After staying idle on home screen with screen on for 10 minutes (50% brightness): 30.5 C
- After chatting on Messenger for 10 minutes: 34.3 C (feels warm)
- After recording video for 4 minutes: 41 Celsius!!! (almost uncomfortably hot in the whole upper half of the phone, both the back side and the screen)
- After 15 minutes letting it cool down, with screen off of course, it is 38 C (still hot to touch), and it stays like that untill I reboot the phone, then it cools down.
The test took about 50 minutes, and after that, battery was drained for about 25%.
-While charging, the phone does not overheat, just gets a little warm which is OK. (haven't tried wireless charging)
P.S. I don't play games on the phone...
Please act quick in case I should return the phone...

the only time my phone gets hot is when im intensively doing a lot of things..
for example.. im playing ingress, have tether ON, and my two sons are using their tablets connected to my phone playing ingress too..
but if i turn off the game and turn off tether, it cools down..
to me it sounds u have something intesively using your CPU and perhaps GPS and other radios.
hold power button.. when PWR OFF shows, long press it and reboot into SAFE MODE...
use the phone for a bit and see if it gets warm... this should tell you if its apps installed.

I only used wifi, no tethering, no GPS, 3G, NFC or any other radios, cell signal is good so phone is not searching for it.
- In safe mode, it still gets warm when using camera. When browsing internet and watching images in google search, also but just mild warm..
- But after sitting and thinking, I've found a problem! After recording with camera and leaving it to cool down, it didn't cool down because it had to make an effort to upload that 5 min video on Google drive via Auto backup!
After turning the Auto-backup off, it is now much cooler!
I will post tomorrow with the results, if something changes...
Anyway, thank you!

First of all, "warm" doesn't mean anything.
Battery temperature does not mean much either, as the CPU is what generates the most heat.
There is a battery temperature throttle that reduces the CPU frequency, but it is almost entirely pointless as the CPU will always reach it's own throttle temperatures MUCH, MUCH earlier than the battery will. The CPU starts throttling at 65C CPU temp (NOT battery temp), and shuts itself down at about 105C CPU temp. Unless your battery somehow reaches a batterytemp of 70C+ (nearly impossible because the CPU will always hit it's throttle first), then I would never even take it into any sort of consideration unless you have a physical battery defect.
Using the camera generates heat since it's CPU and power intensive.
Using the phone in general will generate heat.
Keep in mind that mobile devices are passively cooled, not actively cooled with a fan/liquid.
Not sure what you're so worried about.

Lower your brightness

Lethargy, thank you for a short physics lesson. I'm already into physics and cooling systems so all is clear. I was just worried a bit because all of my previous phones weren't getting this warm (hot), but also never had a multi-core processor in phone eather, maybe that's the reason why I never experienced this before.
Battery temp (measured with app) gets up to 40-42 degrees Celsius, while the phone case gets up to 41 when recording video. Of course that temp won't damage the device, I'm not worried about the processor, but that temp is degrading battery life, in long term.
And about the brightness, phone is not meant to be used at lowest brightness all the time, so that shouldn't be an excuse for high temps. Just sayin'...
Sent from my Nexus 5 using XDA Free mobile app

AlexSRB said:
Lethargy, thank you for a short physics lesson. I'm already into physics and cooling systems so all is clear. I was just worried a bit because all of my previous phones weren't getting this warm (hot), but also never had a multi-core processor in phone eather, maybe that's the reason why I never experienced this before.
Battery temp (measured with app) gets up to 40-42 degrees Celsius, while the phone case gets up to 41 when recording video. Of course that temp won't damage the device, I'm not worried about the processor, but that temp is degrading battery life, in long term.
And about the brightness, phone is not meant to be used at lowest brightness all the time, so that shouldn't be an excuse for high temps. Just sayin'...
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
The only thing that sounded odd was how it wasn't cooling down until you rebooted, but it sounds like you figured that out with the automatic upload setting.
41-42c battery temp can be normal after prolonged usage, though personally I usually see that after a short gaming session. My brightness is around 40% and high brightness will cause extra heat.
Otherwise the phone is very thin so you can feel the stacked SoC and RAM heat up through the skin fairly easily, right around the camera area as you mentioned.
I think each device and CPU is slightly different and can vary by a few degrees under load as well.

AlexSRB said:
Lethargy, thank you for a short physics lesson. I'm already into physics and cooling systems so all is clear. I was just worried a bit because all of my previous phones weren't getting this warm (hot), but also never had a multi-core processor in phone eather, maybe that's the reason why I never experienced this before.
Battery temp (measured with app) gets up to 40-42 degrees Celsius, while the phone case gets up to 41 when recording video. Of course that temp won't damage the device, I'm not worried about the processor, but that temp is degrading battery life, in long term.
And about the brightness, phone is not meant to be used at lowest brightness all the time, so that shouldn't be an excuse for high temps. Just sayin'...
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Your temperatures are fine and you shouldn't worry about it. It's average for a Nexus 5, and there are throttles/shutdown temps anyways, for both the battery and CPU. I've had mine for a year and there hasn't been any sort of issue, normal usage should be negligible to the condition of the battery.

Ok, everything seems to be ok then. Now I can go to sleep without worrying Thanks guys!
Sent from my Nexus 5 using XDA Free mobile app

CPU Temperature

I’m looking for the CPU temp in Galaxy S7.
Anybody know what are the values in green and red box in the pic attached signify?
This pic is from AIDA64/CPUZ

The red must be CPU cores, or at least related to that. Have no idea about the green one.
Sent from my SM-G930F using Tapatalk

KoRoZIV said:
The red must be CPU cores, or at least related to that. Have no idea about the green one.
Sent from my SM-G930F using Tapatalk
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Click to collapse
Wherever I see in the forums people only talk about the value in green box and they think that device is relatively cooler even under heavy load. But gotta say man the device heats up worse than my G4 even in minor load when referring to the values in the red box as you said. I wanna know is there something up with my device alone. What does you CPU Temp. reading after about 15 mins of heavy game session like with 'NFS No Limits' in your device in AIDA64? PLease post a screenshot

I don't play games on the phone. I tried a few just to make sure the phone is OK when gaming but in 5 minutes I got bored.
My phone gets hot, 75 Celsius when updating several apps, or right after an OTA.
I think this is normal, as I changed the first phone ( display issue ) and both reached the same temperatures in similar situations.
Edit
Also have a g4, that one gets hot more often than the s7.
Sent from my SM-G930F using Tapatalk

KoRoZIV said:
I don't play games on the phone. I tried a few just to make sure the phone is OK when gaming but in 5 minutes I got bored.
My phone gets hot, 75 Celsius when updating several apps, or right after an OTA.
I think this is normal, as I changed the first phone ( display issue ) and both reached the same temperatures in similar situations.
Edit
Also have a g4, that one gets hot more often than the s7.
Sent from my SM-G930F using Tapatalk
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Click to collapse
Oh! Thanks for the reply. This is the first time using glass/metal phone, maybe that's why I'm very sensitive to this problem. Is that a S7(flat)? Never had seen anything above 60C.

Yes, simple s7, not edge.
One time got very hot in my pocket, for no apparent reason.
But in battery stats I noticed that Google services percentages increased from 6 to 16, in about 20 minutes. This happens also on g4, about once or twice a week. It lasts from 10 minutes to a half hour, or I restart the phone and no more issues for a while.
It's hard to catch the s7 above 70 Celsius, I guess the cooling system does it's job really fast. We need an app to monitor and record temperature changes in the background. The only one I know about is CPU temp, but is not showing real CPU temperatures, it's fake.
Sent from my SM-G930F using Tapatalk

Got the same situation (temp around 65-70 degrees) especially when updating apps by play store. Its getting hot on the back near the camera. But when updating is done temperatures are very fast dropping to 30-40 degrees. I think it's normal for this kind of device, made from glass and metal. Would be greatful for more observations from you guys. Cheers.

KoRoZIV said:
Yes, simple s7, not edge.
One time got very hot in my pocket, for no apparent reason.
But in battery stats I noticed that Google services percentages increased from 6 to 16, in about 20 minutes. This happens also on g4, about once or twice a week. It lasts from 10 minutes to a half hour, or I restart the phone and no more issues for a while.
It's hard to catch the s7 above 70 Celsius, I guess the cooling system does it's job really fast. We need an app to monitor and record temperature changes in the background. The only one I know about is CPU temp, but is not showing real CPU temperatures, it's fake.
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
Yeah, Most app in the place store aren't able to read the actual temperature from the S7. Maximum I've seen with those are 38C in ~20 min session of gaming. As I said haven't seen S7 anywhere near 70C but near 61C in AIDA64 but after ~20 min session of gaming. It does take about 5 mins to completely cool down. Don't know it's normal. Is it!?

koliberek1 said:
Got the same situation (temp around 65-70 degrees) especially when updating apps by play store. Its getting hot on the back near the camera. But when updating is done temperatures are very fast dropping to 30-40 degrees. I think it's normal for this kind of device, made from glass and metal. Would be greatful for more observations from you guys. Cheers.
Click to expand...
Click to collapse
Thanks for the info. Sure will keep you posted. Are you also using AIDA64/CPUZ?

KoRoZIV said:
I don't play games on the phone. I tried a few just to make sure the phone is OK when gaming but in 5 minutes I got bored.
My phone gets hot, 75 Celsius when updating several apps, or right after an OTA.
I think this is normal, as I changed the first phone ( display issue ) and both reached the same temperatures in similar situations.
Edit
Also have a g4, that one gets hot more often than the s7.
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
ooh! what game was that?

Sheryl John said:
Thanks for the info. Sure will keep you posted. Are you also using AIDA64/CPUZ?
Click to expand...
Click to collapse
Yes, I'm using cpuz.

KoRoZIV said:
I don't play games on the phone. I tried a few just to make sure the phone is OK when gaming but in 5 minutes I got bored.
My phone gets hot, 75 Celsius when updating several apps, or right after an OTA.
I think this is normal, as I changed the first phone ( display issue ) and both reached the same temperatures in similar situations.
Edit
Also have a g4, that one gets hot more often than the s7.
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
koliberek1 said:
Got the same situation (temp around 65-70 degrees) especially when updating apps by play store. Its getting hot on the back near the camera. But when updating is done temperatures are very fast dropping to 30-40 degrees. I think it's normal for this kind of device, made from glass and metal. Would be greatful for more observations from you guys. Cheers.
Click to expand...
Click to collapse
As you can see from all the below linked videos, the temperature never crosses 40C in any testing under heavy load. But how can we get 60C, 70C and all. They are even saying device isn't much hot. How is that even posssible?
https://www.youtube.com/watch?v=3VYrhJAlxQg
https://www.youtube.com/watch?v=sXztRcfmZSU
https://www.youtube.com/watch?v=2rTk0WuWpUY
https://www.youtube.com/watch?v=QKn0rvUkhPE
https://www.youtube.com/watch?v=TIt9-EuYKcQ
https://www.youtube.com/watch?v=fB4ZFREcdCw
https://www.youtube.com/watch?v=mE-L4kcohgM

I have no idea what and how they tested, the fact is that mine got very hot a few times. I only check temps when I feel the phone hot, and that was only when updating some apps, right after the OTA restart.
The temps from a gun are going to be lower than the core sensor reading. Always.
Is this gun any good for external testing ? I almost bought it
Sent from my SM-G930F using Tapatalk

KoRoZIV said:
I have no idea what and how they tested, the fact is that mine got very hot a few times. I only check temps when I feel the phone hot, and that was only when updating some apps, right after the OTA restart.
The temps from a gun are going to be lower than the core sensor reading. Always.
Is this gun any good for external testing ? I almost bought it
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
Bought it online? Check the reviews.

Didn't bought it, I've seen it in some store and took a photo
It's about 20 euro's.
Sent from my SM-G930F using Tapatalk

KoRoZIV said:
Didn't bought it, I've seen it in some store and took a photo
It's about 20 euro's.
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
Seems like a local item. May not give you accurate readings but it's up to you. If you want a good one try Amazon.

koliberek1 said:
Got the same situation (temp around 65-70 degrees) especially when updating apps by play store. Its getting hot on the back near the camera. But when updating is done temperatures are very fast dropping to 30-40 degrees. I think it's normal for this kind of device, made from glass and metal. Would be greatful for more observations from you guys. Cheers.
Click to expand...
Click to collapse
KoRoZIV said:
Yes, simple s7, not edge.
One time got very hot in my pocket, for no apparent reason.
But in battery stats I noticed that Google services percentages increased from 6 to 16, in about 20 minutes. This happens also on g4, about once or twice a week. It lasts from 10 minutes to a half hour, or I restart the phone and no more issues for a while.
It's hard to catch the s7 above 70 Celsius, I guess the cooling system does it's job really fast. We need an app to monitor and record temperature changes in the background. The only one I know about is CPU temp, but is not showing real CPU temperatures, it's fake.
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse
Here are something based on my recent tests and findings,
The problem is when the device is under heavy load(NFS No Limits game). therm_zoneX values goes upto 61C, which I don't care if the device is still not much hot to hold in hand but it isn't. Compared to my LG G4 it gets hot soon for the same amount of load based on my tests. And makes me unpleasant of the fact that the I can't enjoy the amazing performance of gaming in this phone not even longer when compared to the HTC & LG phones I had. Even simple tasks like switching between Whatsapp and Tapatalk in the background for almost 5 min made the device unusually warm while there isn't anything else heavy running in the background. All these is considering the fact that my room temperature isn't very hot. What is your opinion?
I think the below attached images(4) will help you understand it better on the temp. variations on various tasks and where do I feel it warm/hot. I strongly believe it's unusual based on my experience in previous 5 years with various devices. Do you observe something similar. Please have a look.
PS: The NFS No Limits temp. readings were similar to someone who posted in the different thread.

Is 34°C on average/light use good?
36-37°C when updating apps and using the phone at the same time

Overheating

My opo overheats without any heavy usage, I don't play any games.
I was on CM13, Darkobas rom and now Candysix rom but it still overheats what can I do?

Hi,
Have you tried a clean fastboot flash ?
Or can you upload some screenshots from an app like "CPU temperature" to see how is your overheating ?

Ronii10 said:
My opo overheats without any heavy usage, I don't play any games.
I was on CM13, Darkobas rom and now Candysix rom but it still overheats what can I do?
Click to expand...
Click to collapse
Why you say that is over heating? Post some as about CPU and battery temp

This after ~15 mins of easy usage (battery temp. on status bar)

i don't this that these tempreture (48) is high...

So does anything happen when it starts to over heat?
Over heating to me would be 60s+ that's normally when the back of the phone is feeling very warm.
After I install a new rom, start up is rebuilding the cache and I've got it charging that's the only time I notice a hot back. Or if the GPS and 3g might be doing something strange.
If your phone is slowing down then look into it. If it seems fine but you just think the numbers are high then I wouldn't worry to much.
Where do you live? Is there a lot of direct hot sunlight?
Do you have loads of apps installed that might be misbehaving?
Or pick a rom that is slightly underclocked. Running it at max speed does make it warmer. Sultans kernel normally runs nice and cool. Think darkobas also uses it.
Sent from my OnePlus One

conalt said:
So does anything happen when it starts to over heat?
Over heating to me would be 60s+ that's normally when the back of the phone is feeling very warm.
After I install a new rom, start up is rebuilding the cache and I've got it charging that's the only time I notice a hot back. Or if the GPS and 3g might be doing something strange.
If your phone is slowing down then look into it. If it seems fine but you just think the numbers are high then I wouldn't worry to much.
Where do you live? Is there a lot of direct hot sunlight?
Do you have loads of apps installed that might be misbehaving?
Or pick a rom that is slightly underclocked. Running it at max speed does make it warmer. Sultans kernel normally runs nice and cool. Think darkobas also uses it.
Sent from my OnePlus One
Click to expand...
Click to collapse
I used my opo for ~10 min I was on facebook and listening to music and my opo was around 38C that is not normal
I flashed CM12.1 with Sultans kennel but it don't seem to help, I live in Sweden it's around 25C but it overheats even when I'm home
Skickat från min A0001 via Tapatalk

Ronii10 said:
I used my opo for ~10 min I was on facebook and listening to music and my opo was around 38C that is not normal
I flashed CM12.1 with Sultans kennel but it don't seem to help, I live in Sweden it's around 25C but it overheats even when I'm home
Skickat från min A0001 via Tapatalk
Click to expand...
Click to collapse
That temperature is completely normal during use. If it was 80c then you can claim overheating, which it clearly isn't.

Renosh said:
That temperature is completely normal during use. If it was 80c then you can claim overheating, which it clearly isn't.
Click to expand...
Click to collapse
How is this normal? My opo is pretty hot after around 10 min of usage the cpu may be cool but the battery temp. isn't normal

Ronii10 said:
How is this normal? My opo is pretty hot after around 10 min of usage the cpu may be cool but the battery temp. isn't normal
Click to expand...
Click to collapse
Post a photo of the battery temp. Why did you post CPU temp screenshot when it's your battery temp that's bothering you?

Renosh said:
Post a photo of the battery temp. Why did you post CPU temp screenshot when it's your battery temp that's bothering you?
Click to expand...
Click to collapse
The user FSadino asked me to do it, check post #4

Your temps are good. You don't have bother

LG Nexus 5 - Overheating, Battery drain.

Starting a month and half ago my LG Nexus 5 would get hot near the camera (Where the CPU is) and drain the battery unusually fast, even without an active app opened, now I can not keep it on outside because of the drain and even if it stays connected to a charger, it slowly builds a charge because of the drain.
I recently changed the battery and the problem continues to persist.
This started happening around when I went over all the settings in the phone and apps, I fear I might of turned on something that is causing it in the background but I can not figure out the exact problem.
Please help.

minun said:
Starting a month and half ago my LG Nexus 5 would get hot near the camera (Where the CPU is) and drain the battery unusually fast, even without an active app opened, now I can not keep it on outside because of the drain and even if it stays connected to a charger, it slowly builds a charge because of the drain.
I recently changed the battery and the problem continues to persist.
This started happening around when I went over all the settings in the phone and apps, I fear I might of turned on something that is causing it in the background but I can not figure out the exact problem.
Please help.
Click to expand...
Click to collapse
Check the frequencies of the cpu, sometimes the minimum value gets stuck to a higher than needed frequency.
You can do so by using Kernel Auditor (root) or CPU-Z. Obviously if they're higher you'll need to set them lower, 300 MHz is the normal minimum freq. If that is not the case then install Gsam Battery Monitor and enable extra stats, you should be able to figure something out with that one app.

CriGiu said:
Check the frequencies of the cpu, sometimes the minimum value gets stuck to a higher than needed frequency.
You can do so by using Kernel Auditor (root) or CPU-Z. Obviously if they're higher you'll need to set them lower, 300 MHz is the normal minimum freq. If that is not the case then install Gsam Battery Monitor and enable extra stats, you should be able to figure something out with that one app.
Click to expand...
Click to collapse
thank you, it was the outlook app going rouge