Database Develop

How much heat can the N1 take?

So the other day, I forgot to close an app down--the Schwartz Unsheathed, if you are curious--and when I fished my phone out again, it was hot. Very, very hot. Battery information indicated 41C which, in the grand scheme of things, isn't that high (wouldn't worry me with a PC's graphic card, for example, or CPU) but it felt incredibly warm to the touch. Fine, I shut the app down, removed the battery cover and let the phone cool down. No problem.
It might be the apps I've been trying since then, but I have been experiencing performance and stability issues. Things slow down sometimes. On the Desire ROM, Rosie kept force-closing every now and again. On Enomther's which as we all know is just about the stablest thing that ever stabled, Launcher2 does ditto (the Launcher Dock may be the culprit, though, as it seems to do some weird **** and I've removed it since. Fiddling around with BetterCut also seems to cause force-closes). So could that be it? Did the phone overheat (but if so, shouldn't it have shut itself down) and now something's broken? Getting antsy. :/

41°C should not be a problem, but consider that this was a measurement from the battery pack and that a sensor like that can easily go +/- 5 to 10 degrees.
so well, some chip on the nexus could have gotten way hotter than 41°C. maybe something fried, some defect that was already there and now its really broken.
still, this can be a bit subjective, the phone will seem broken if you think it's broken you can always do a factory reset, reflash the current rom and try from there.

Yeah, could just be my own jitters--I'd experienced issues before, usually caused by a ROM or whatever--and lately my PC's been having problems, so it might well be some kind of placebo effect. Unless it and my N1 magically entered a symbiosis or something.
Thanks for the quick reply.

once my phone accidently fell onto my bed and under my pillow while i was charging it over night and i woke up at 4 am and found a burning out nexus under my pillow. i unplugged it and nothing seemed damaged but it still worried me.

I think if you are worried about it and you are rooted you should install SetCPU. It has a profile designed so that is you his a preset temp it will down clock your CPU.
I use setCPU to save my batterylife ie.
100% - 50% run full cpu on demand.
Idle/Standby downclock to 400Mhz
50% or less down clock to 600Mhz on demand
20% or less down clock to min.
I also complement this with locale for low bat. dimness, wifi off, bluetooth off. etc.. etc.. ( a little off topic I know)

Well, looks like updating More Icons Widget was what did it; things seem to work okay now.

Was wondering what the maximum advisable temperature is?
Maybe the phone has protection for the CPU? but Li-ion batteries dont like heat, it shortens their effective life.
my battery reached 44.3C yesterday on a 4 hour journey in the car using co-pilot and the phone actually net discharged despite the fact it was on a 1A USB charger for the entire journey - about 80% at start of journey and 20% at end.
I've installed setcpu now and set the temperature profile to drop the max speed to 768 if temp is >44C and another one to drop the speed if power is less than 30%, may need further tweaking though. This was not in my car and the back of the phone was effectively unventilated, in my car I have an open backed holder near an air vent.

[Q] Galaxy Note Battery Issues

Anyone experiencing battery heating issues?
The battery temp stays from 25C to 36C when not in use/constant usage.
however, after prolonged period in lockscreen mode, & i unlocking to use it, it heats up pretty fast, playing games worse; ends up with 42C to 48C, highest being 51C.
is this a common issue? (as some of my friends have this prob too), and it's only the dark blue Note.
any ideas for fix?

Mine gets pretty toasty as well. If I use it while charging it, I've seen it get to 48 degrees.

My Battery died tonight. I woke up after i burned nearly my arm becaus of the hot device. it boots shortly because of demaged battery but i dont know if the Note is ok. display issues. It was on CM 04, on 03 i dont have recogniced any heating problems. If my new battery arrives i must test if it has no damage.

@gilrad: i never use my phone when charging so that i can get a more accurate charge.(just my own thinking) still it can get abit hot(but this is the normal heating)
just referring to light/normal/heavy usage.
@wtwo2: how did your note get hot in the first place ?

wtwo2 said:
My Battery died tonight. I woke up after i burned nearly my arm becaus of the hot device. it boots shortly because of demaged battery but i dont know if the Note is ok. display issues. It was on CM 04, on 03 i dont have recogniced any heating problems. If my new battery arrives i must test if it has no damage.
Click to expand...
Click to collapse
This worries me a alot.. Running cm9 v04...
Sent from my GT-N7000 using Tapatalk 2

miniharo said:
@wtwo2: how did your note get hot in the first place ?
Click to expand...
Click to collapse
it was on charging. it boots shortly with battery and charger in but then goes off(usb port). battery doesn't load any more
edit:with charger in wall it boots normally and i can use it but i testet it only shortly, better wait for new battery.
Until now 'no' issues with device.

Yep, same here on my Note, International version from Latin America, GB, rooted.
It gets hot when I do intensive activities such as:
- Watching full featured movie (1+ hour)
- Playing games with tons of action (not simple one like Draw Something)
- Browsing website with heavy content (Flash, ads)
So far, has NOT resulted in too high of temperature such that it burn my hand.

Mine is heating like toster
My note is heating up very fast. I found when it is heating so badly
1.When you search for 3g networks or wifi signals or when downloading at high speeds.
2.When you start ur flashlight for 5 or more minutes
3.When you use your GPU at most for example watching HD video and playing high quality games
I saw my battery upto 58 degrees
I saw my battery draining like seconds when i started watching a hd video it goes on decreasing from 78,77,76...............27 in just 20 mins time with 3g activated.
Deadhanuman

Its odd that people report that the Note gets hot while watching videos. Are these online flash videos or something? I use my Note to watch a lot of HD videos, and it always runs cool. It may be to do with the encoding on the video or the player... I tend to encode to High profile H264 and use mVideoplayer. AFAIK, this allows GPU decoding which runs cooler and draws less power.
Some players use the CPU (the early versions of Mobi player did this I think), which gets hotter faster and drains the battery quicker.

Mine often gets hot only after i've left in lockscreen mode for quite a while -> wake-up -> use apps before it cools down after quite some time, with the app still running
Sent from my GT-N7000 using Tapatalk 2

and now it's getting a bigger drain even when i leave it locked while i sleep. dropping from 100% to 60% in one night and from battery graph, it shows that my phone's getting wokeup periodically - any ideas..?

and now i have to reboot often once i realise the battery cant enter deep sleep mode -> battery drain. it's monitored by betterbatterystats where my deep sleep time is 0s, anyone got any ideas what's causing the wakes?

[Q] Nexus 6 Overheating issue

My new Nexus 6, is now too hot to start, when booting up it turns off before it can ask for the pattern to decrypt the phone. It loads up fine in Fastboot and Recovery, but the CPU temperature in recovery is displayed ranging between 67-70 degrees Celsius. The phone is a month and a half old.
It was performing well without a glitch (apart from the random reboots and 'not charging' at times when plugged in).
Over the last week it started charging really slowly, showing 9 hours to a full charge when the battery was 15%., and after being on charge for that amount of time, the battery topped charging at 65% each time. I suspected that the Turbo Charger/Cable were faulty but other chargers (turbo/normal) and cables showed the same results. The displayed battery health was shown as good. I figured out that the phone could charge up from )% to full in 1.5 - 2 hrs approximately on any of those chargers and cables including the original ones when in Fastboot or Recovery mode. I started charging my phone in recovery mode. The CPU temperature used to be around 65 C. I had done a complete factory reset/data wipe/cache wipe to try and fix the problem.
The phone is rooted, running stock 5.1 rom, latest official TWRP recovery although no apps that use root.
Since day before yesterday the phone started randomly shutting down every 15 - 60 min, overheating I suspect. The battery health was displayed as 'overheat' and he phone completely refused to charge when powered on, and now shuts down when powering on before it can ask for the decryption pattern, though it runs fine in Fastboot/TWRP Recovery. CPU Temp shows as 70C in Recovery.
Please help.

Ahmer Jamil Khan said:
My new Nexus 6, is now too hot to start, when booting up it turns off before it can ask for the pattern to decrypt the phone. It loads up fine in Fastboot and Recovery, but the CPU temperature in recovery is displayed ranging between 67-70 degrees Celsius. The phone is a month and a half old.
It was performing well without a glitch (apart from the random reboots and 'not charging' at times when plugged in).
Over the last week it started charging really slowly, showing 9 hours to a full charge when the battery was 15%., and after being on charge for that amount of time, the battery topped charging at 65% each time. I suspected that the Turbo Charger/Cable were faulty but other chargers (turbo/normal) and cables showed the same results. The displayed battery health was shown as good. I figured out that the phone could charge up from )% to full in 1.5 - 2 hrs approximately on any of those chargers and cables including the original ones when in Fastboot or Recovery mode. I started charging my phone in recovery mode. The CPU temperature used to be around 65 C. I had done a complete factory reset/data wipe/cache wipe to try and fix the problem.
The phone is rooted, running stock 5.1 rom, latest official TWRP recovery although no apps that use root.
Since day before yesterday the phone started randomly shutting down every 15 - 60 min, overheating I suspect. The battery health was displayed as 'overheat' and he phone completely refused to charge when powered on, and now shuts down when powering on before it can ask for the decryption pattern, though it runs fine in Fastboot/TWRP Recovery. CPU Temp shows as 70C in Recovery.
Please help.
Click to expand...
Click to collapse
Flash factory image, lock bootloader, and RMA.

Evolution_Tech said:
Flash factory image, lock bootloader, and RMA.
Click to expand...
Click to collapse
What is RMA?

Ahmer Jamil Khan said:
What is RMA?
Click to expand...
Click to collapse
Returning the phone to the seller to be exchanged for a new device. RMA https://www.google.nl/search?q=rma&ie=utf-8&oe=utf-8&gws_rd=cr,ssl&ei=sihYVcWrCcyBU-vVgIgM.

gee2012 said:
Returning the phone to the seller to be exchanged for a new device.
Click to expand...
Click to collapse
Thanks a lot. Flashed a stock ROM/Recovery and locked the bootloader again. Will be shipping it off.
Just wondering, what caused this kind of an issue?

Ahmer Jamil Khan said:
Thanks a lot. Flashed a stock ROM/Recovery and locked the bootloader again. Will be shipping it off.
Just wondering, what caused this kind of an issue?
Click to expand...
Click to collapse
Probably a hardware issue, it can happen

Probably not a good idea to charge in recovery as all cores are always maxed out, causing it to be hot anyway.

Reflash the stock kernel using the flashify app from app store. This will rule out software issues
https://play.google.com/store/apps/details?id=com.cgollner.flashify

After looking at thread like these , i am reluctant to use the Quick Charger that came with the phone. I normally charge the phone with USB (PS4) or a normal Samsung Charger

Where people go wrong is using the phone while fast charging. Playing a graphics intensive game or streaming video while fast charging isn't typically good for battery temps

No amount of re-flashing will fix the problem. The Nexus 6 has a known overheating problem. I am using a workaround and so far have not had a single incident. I was getting two or three reboots a day before this. Set the screen resolution to 1080p. Instructions here:
http://nexus5.wonderhowto.com/how-t...xus-6-by-lowering-display-resolution-0159881/
This also works with rooted Marshmallow with Elemental kernel. You will not notice a difference - other than the reboots stopping and your battery lasting longer.

madmartian said:
No amount of re-flashing will fix the problem. The Nexus 6 has a known overheating problem. I am using a workaround and so far have not had a single incident. I was getting two or three reboots a day before this. Set the screen resolution to 1080p. Instructions here:
http://nexus5.wonderhowto.com/how-t...xus-6-by-lowering-display-resolution-0159881/
This also works with rooted Marshmallow with Elemental kernel. You will not notice a difference - other than the reboots stopping and your battery lasting longer.
Click to expand...
Click to collapse
not true. first off, describe "overheating".
i run my cpu set to 3033mhz high and low. no matter what i do, i can not get it to "overheat". when the n6 overheats, it reaches 100C, at which it will either power off or reboot at that point. thus happens to let the cpu cool off.
remember, you are running a quad core cpu, at 2649mhz by default. now i ask again, describe "overheating".
oh, and one more. it has been proven already that lowering your resolution does not save battery. you arent disabling pixels, that where the same amount of the power is lost, no matter what you change your resolution.
anything else? :silly:

simms22 said:
not true. first off, describe "overheating".
i run my cpu set to 3033mhz high and low. no matter what i do, i can not get it to "overheat". when the n6 overheats, it reaches 100C, at which it will either power off or reboot at that point. thus happens to let the cpu cool off.
remember, you are running a quad core cpu, at 2649mhz by default. now i ask again, describe "overheating".
oh, and one more. it has been proven already that lowering your resolution does not save battery. you arent disabling pixels, that where the same amount of the power is lost, no matter what you change your resolution.
anything else? :silly:
Click to expand...
Click to collapse
It solved the problem for me. That is a fact. Others have also posted that it has solved the problem for them. When playing certain graphic-intensive games, the battery would drain quickly and the phone would overheat and reboot. It is of course true that the screen pixels are still lit, however, the system doesn't have to keep track of all that extra data and the app has less work to do, thus it really does save battery and prevent overheating. It's the same as speeding up your fps in a PC game by lowering your game resolution, even though you're still using the same monitor.

madmartian said:
It solved the problem for me. That is a fact. Others have also posted that it has solved the problem for them. When playing certain graphic-intensive games, the battery would drain quickly and the phone would overheat and reboot. It is of course true that the screen pixels are still lit, however, the system doesn't have to keep track of all that extra data and the app has less work to do, thus it really does save battery and prevent overheating. It's the same as speeding up your fps in a PC game by lowering your game resolution, even though you're still using the same monitor.
Click to expand...
Click to collapse
i give you a few points with the gpu, but the amount saved would be extremely minimal. unless thats all you do, play games all day. then you might see an extra 5%, maybe.

I have huge heating issues when bulk-gaming. I even tried capping the GPU at 300 MHz. It's fine just gaming but gaming and charging is a no no for me. It *used* to work fine, but now it just throttles, even though it is only running at maybe 60 Degrees C. (I set my thermal throttle at 75). It's not really so much of an overheating issue as it is a throttling issue. Throttling on this device is poor and hard to work around.

danarama said:
I have huge heating issues when bulk-gaming. I even tried capping the GPU at 300 MHz. It's fine just gaming but gaming and charging is a no no for me. It *used* to work fine, but now it just throttles, even though it is only running at maybe 60 Degrees C. (I set my thermal throttle at 75). It's not really so much of an overheating issue as it is a throttling issue. Throttling on this device is poor and hard to work around.
Click to expand...
Click to collapse
su(press enter)
echo N > /sys/module/msm_thermal/parameters/enabled(press enter)
this always works for me, no throttling issues

simms22 said:
i give you a few points with the gpu, but the amount saved would be extremely minimal. unless thats all you do, play games all day. then you might see an extra 5%, maybe.
Click to expand...
Click to collapse
My results are specific to certain high-battery-drain games. I am seeing my battery usage HALVED while playing certain games after making this change. These games tend to have a lot of animation. General use or "normal" (not unusually high) battery drain games are likely closer to your 5%.
Likewise, I noticed these games use a lot less battery on my older phones (with lower resolution screens).
If a phone is overheating during "normal" (not high drain) situations, then lowering the resolution may not be effective.

my phone only heats up when it is charging goes up to 45c

simms22 said:
su(press enter)
echo N > /sys/module/msm_thermal/parameters/enabled(press enter)
this always works for me, no throttling issues
Click to expand...
Click to collapse
Sorry, missed this post.
Will it survive reboot?
Sent from my Nexus 6 using Tapatalk

danarama said:
Sorry, missed this post.
Will it survive reboot?
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
no. it has to be run every time you boot up.

Note 4 running hot, and high battery drain

Hey everyone,
My note 4 on 5.0.1 running any rom (stock, poprocks, TekHD) runs super hot. The area on the screen that is right below the camera is unpleasant to touch. When running a cpu temperature monitor I seem to identify around 60c and when Web browsing and scrolling though pages it'll go up to 70c. This also seems to be killing my battery life. Over 10 hours I'll be lucky to get 2 hours sot.
I've gotten wld and bbs and don't see any crazy wake locks that aren't supposed to be there. Largest one is my Google play music which I do use. 2nd up is Bluetooth, I'm guessing because of my android wear device. I've also done clean installs where I do a correct wipe then don't install any apps. Still horrible battery life, still lots of heat.
From reading about it sounds like the heat issue could be a bad device and I should get it replaced? Should I try picking up a new battery?
Over the course of writing this post, about 4 minutes I've gone from 17% to 10%.

Reinstall rom with factory kernel and install kernel adiutor apk for cpu control from google play. Im using rapture 3.0 without issues and battery pretty good and temp is normal.
Sent from my SM-N910T

Same problem here SM-N910G on 5.1.1 stock ROM. Installed a new genuine Samsung battery, NC. I hit about 60°C when at idle, 65°C when browsing. I wiped davlik cache and cache on teamwin, which seems to have helped a little. Battery is lucky to last 4-5 hours tops.
Did you find a solution? I thought it might have been from using Blitzwolf and Xaomi chargers, but it's the CPU getting hot, battery stays at 40°C

Are you using a custom kernel? I had an issue with a bad kernel setup and it restored my settings automatically which was the cause of my battery drain.

Z1 - no offline cores

Is it normal that on Android 5.1.1 .236 with stock kernel are always available online all 4 cores? For earlier versions of Android cores they were excluded or included depending on demand. After replacing the battery, the phone works normally, up to 4 working days and ~ 4h enabled screen. The problem, however, is notorious heat up the phone. Temperatures of 60-70 ° C when creating a backup in recovery rather should not occur. Maybe a custom kernel?https://forum-lw-1.xda-cdn.com/images/smilies/rolleyes.gif

Hi,
If the cores are always working at a reasonable speed something is not right with your mobile. A custom kernel would be of good use though, I've been using one to disable two cores always -- since my Z1 became a backup device -- and that made it heat up a bit less and the battery last a little longer.
Another possibility of the heat is that when you replaced the battery you didn't seal it off well, or somehow caused some damage to the heat dissipation, if that also happened before I mean. So if you could try remembering how it was before the battery replacement, it'd be of good help.
All the best,
~Lord