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] Xperia T battery just not there, advice?

I love the phone but battery performance is poor. I installed BBS. Enclosed a screenshot. I'm not rooted so can't look into alarm details. Makes me sad. LTE speed amazing but how can you enjoy phone if recharging once during day? Any advice greatly appreciated. I have disabled anything extraneous that I could

I'm using 2x.battery pro right now. Tried all the others too.
The same app set on my Xperia U has none of these battery issues.

Just charge in overnight, I don't see the problem in that. Then you won't have any problems.
Sent from my phone using XDA Premium

I do
I do charge every night. But most of time charging in evening as well

junkaholic said:
I do charge every night. But most of time charging in evening as well
Click to expand...
Click to collapse
charging continuously over extended periods can cause battery failure also heavy use of the phone whilst charging can damage the battery and as the T is a solid phone (cannot change battery) id recommend having it turned off whilst charging that way it will fully charge and you wont damage the battery more .... also try turning data connection 3g wifi etc etc off when your not using it as they can drain the battery a lot checking for facebook ,gmail and almost all your other apps , also listening to music and using bluetooth use more battery too

AW: [Q] Xperia T battery just not there, advice?
1. is that avast installed? Remove it. Useless anyway if you'd ever need it and only uses resources if yu dont need it.
2. battery surveillance crap? Remove it. Known to be very prone to cause wakeup.
3. Update your system, .3.195 is not the latest available.
4. About 5000 wakeups by what looks to me a failing google backup. A wakeup multiplied by 3-6 seconds on-time equals 15000-30000 seconds. Thats 5-8 hours. Thats like what the battery can give. Something is ****ed up, I suggest a fullwipe and start over from scratch.
Oh, and never mind that crap about turning all services off and totally rendering your device useless. Correctly setup the T (TL...?) lasts for a whole day with quite some abuse. And I simply dont trust the minimally booted kernel not enough to correctly regulate charging current and keep the voltages and temperatures in check. I trust the fully booted and full fledged kernel more in that regard. And turning off your device to make it use MORE battery after turning it on in the morning because it needs to go and sync all services again, check all data and find out if anything in the cloud got updated in the meantime and most importantly, needs to run the media scanner again, a very battery hungry process...? No thanks. I'll leave it on. And if that would make me feel bad, I'd use the flightmode as a maximum measure. Still better than killing the device alltogether.

Seems like to me that you might be using loads of craps that you don't need mate.
Sent from my LT30p using xda premium

Is battery drain possible due to hardware damage?

So over the course of time I have used many different ROMs and also have had 5 batteries for my Note so far.
All ROMs gave me terrible battery life, except the stock android for around the first year, eventually it started giving me terrible battery life too.
So that got me wondering, is it possible that some kind of faulty hardware on my Note's motherboard is causing those battery drains?

[email protected] said:
So over the course of time I have used many different ROMs and also have had 5 batteries for my Note so far.
All ROMs gave me terrible battery life, except the stock android for around the first year, eventually it started giving me terrible battery life too.
So that got me wondering, is it possible that some kind of faulty hardware on my Note's motherboard is causing those battery drains?
Click to expand...
Click to collapse
I'm pretty sure that would be possible, but I'd make sure to rule out any other cause you can rule out first.
First thing to do is check on who or what is consuming the battery, so installing something like CPU Spy will let you know if the phone just keeps running at top speeds.
Because there simply isn't enough juice in these batteries to allow all parts of the phone to run full throttle for hours.
Smart phones are really at their best, when their just sitting idle and then they really shouldn't consume any power. That's what you need to check: Does it really slow down and sleep, when you're not actively using it?
And CPU Spy (or similar tools) will give you that info by telling you how much time the CPU has spent at each speed setting. If it doesn't drop to deep sleep when the phone if off the charger, screen switched off at the home screen but stays running at 100-500MHz, then you have found the reason for the miserable battery life. Now you'd just have to find what's causing it.
And that could be a long story journey...
However you could start with an empty ROM fully wiped, nothing but the ROM and the minimum set of GAPPS installed (and CPU Spy or similar for checking) empty internal SDcard, expecially no media files. If you have an external SD card, best remove that initially so you don't have to delete any data you keep on there.
If then the Note isn't guzzling battery and sleeping deeply when not used, your hardware is fine.
Then it's just a matter of adding item after item, always checking of that is causing any change to CPU states and energy consumption.
You should also try to find out of any of your five batteries has issues and use a known good one for the testing.

abufrejoval said:
I'm pretty sure that would be possible, but I'd make sure to rule out any other cause you can rule out first.
First thing to do is check on who or what is consuming the battery, so installing something like CPU Spy will let you know if the phone just keeps running at top speeds.
Because there simply isn't enough juice in these batteries to allow all parts of the phone to run full throttle for hours.
Smart phones are really at their best, when their just sitting idle and then they really shouldn't consume any power. That's what you need to check: Does it really slow down and sleep, when you're not actively using it?
And CPU Spy (or similar tools) will give you that info by telling you how much time the CPU has spent at each speed setting. If it doesn't drop to deep sleep when the phone if off the charger, screen switched off at the home screen but stays running at 100-500MHz, then you have found the reason for the miserable battery life. Now you'd just have to find what's causing it.
And that could be a long story journey...
However you could start with an empty ROM fully wiped, nothing but the ROM and the minimum set of GAPPS installed (and CPU Spy or similar for checking) empty internal SDcard, expecially no media files. If you have an external SD card, best remove that initially so you don't have to delete any data you keep on there.
If then the Note isn't guzzling battery and sleeping deeply when not used, your hardware is fine.
Then it's just a matter of adding item after item, always checking of that is causing any change to CPU states and energy consumption.
You should also try to find out of any of your five batteries has issues and use a known good one for the testing.
Click to expand...
Click to collapse
Okay to begin, the phone never drains battery when idle, never. If I charge to 100% at night around 23:00 , in the morning it would be around 90%. So that seems fair enough. Because I keep my EDGE / 2G activated at all times.
The real problem is when the screen is turned on (doesn't matter what I do).
I tried to keep the screen on for one hour, idle, doing nothing. Battery drained by a whooping 25%. So basically it's my screen which is consuming my battery. I didn't try this when I made this thread, so there's no mention of this in the first post.
So I don't think any other apps are consuming anything. Besides I hardly have any apps installed.
I got the gapps from the following link and installed the 'mini' package.
http://forum.xda-developers.com/par...apps-official-to-date-pa-google-apps-t2943900
Apart from I only have WhatsApp, Notepad, Perfect AppLock, AdAway and Chrome installed. Only a few apps since I did a full wipe yesterday night. Even flashed a stock ROM first and began from scratch.
So I don't really think it's any apps consuming any CPU, only screen is eating a ****load. Could it be the damaged screen?
Holy ****! I just recalled while writing this post, I did get this screen of this phone replace once, like one and half year ago. Could that be it? I did get it replaced from a official Samsung store though.

[email protected] said:
Okay to begin, the phone never drains battery when idle, never. If I charge to 100% at night around 23:00 , in the morning it would be around 90%. So that seems fair enough. Because I keep my EDGE / 2G activated at all times.
The real problem is when the screen is turned on (doesn't matter what I do).
I tried to keep the screen on for one hour, idle, doing nothing. Battery drained by a whooping 25%. So basically it's my screen which is consuming my battery. I didn't try this when I made this thread, so there's no mention of this in the first post.
So I don't think any other apps are consuming anything. Besides I hardly have any apps installed.
I got the gapps from the following link and installed the 'mini' package.
http://forum.xda-developers.com/par...apps-official-to-date-pa-google-apps-t2943900
Apart from I only have WhatsApp, Notepad, Perfect AppLock, AdAway and Chrome installed. Only a few apps since I did a full wipe yesterday night. Even flashed a stock ROM first and began from scratch.
So I don't really think it's any apps consuming any CPU, only screen is eating a ****load. Could it be the damaged screen?
Holy ****! I just recalled while writing this post, I did get this screen of this phone replace once, like one and half year ago. Could that be it? I did get it replaced from a official Samsung store though.
Click to expand...
Click to collapse
I'd consider playing with the brightness, just to see of something a little lower is good enough for daily use but I'd say that isn't impossible...
While Samsung liked to hype the fact that OLED would only use power on illuminated pixels, mine are mostly white because reading is what I do most on my Notes.
And then this screen on the Note 1 didn't use particularly less energy than a good LCD backlight screen according to the reviews I remember.
I also remember an article which said that the energy consumption on OLED wasn't linear and that the last 20% of brightness might cost 50% more power (the numbers are most likely bogus but the main point was that brightness/energy consumption wasn't linear).
And yes, there is most likely variation between individual screens on OLED and moreover OLED displays decay with use and over time. I haven't noticed it that much with my Note 1 yet, but my older Samsung Galaxy S I-9000 that I passed on to one of my sons developed a brightness issue: Everything below the first 100 lines or so is significantly darker than the top. I don't know wether that's a consequence of his usage pattern (Whatsapp) or some other reason, but I do know that he typically kept the display at top brightness and also kept it lit far longer than I ever did.
I've always been somewhat disappointed by the endurance of the Note 1 but I haven't really noticed any significant change with the different ROM versions. And since I was also somewhat disappointed by the performance of the device I couldn't resist replacing it with the Note 3 when that came out.
That device was better in pretty much every regard, except screen ratio: I really, really liked the 16:10 of the Note 1 a lot better than the 16:9 of the Note 3.

abufrejoval said:
I'd consider playing with the brightness, just to see of something a little lower is good enough for daily use but I'd say that isn't impossible...
While Samsung liked to hype the fact that OLED would only use power on illuminated pixels, mine are mostly white because reading is what I do most on my Notes.
And then this screen on the Note 1 didn't use particularly less energy than a good LCD backlight screen according to the reviews I remember.
I also remember an article which said that the energy consumption on OLED wasn't linear and that the last 20% of brightness might cost 50% more power (the numbers are most likely bogus but the main point was that brightness/energy consumption wasn't linear).
And yes, there is most likely variation between individual screens on OLED and moreover OLED displays decay with use and over time. I haven't noticed it that much with my Note 1 yet, but my older Samsung Galaxy S I-9000 that I passed on to one of my sons developed a brightness issue: Everything below the first 100 lines or so is significantly darker than the top. I don't know wether that's a consequence of his usage pattern (Whatsapp) or some other reason, but I do know that he typically kept the display at top brightness and also kept it lit far longer than I ever did.
I've always been somewhat disappointed by the endurance of the Note 1 but I haven't really noticed any significant change with the different ROM versions. And since I was also somewhat disappointed by the performance of the device I couldn't resist replacing it with the Note 3 when that came out.
That device was better in pretty much every regard, except screen ratio: I really, really liked the 16:10 of the Note 1 a lot better than the 16:9 of the Note 3.
Click to expand...
Click to collapse
I see. Thank you for the time you took to write this reply.
I always have my brightness to the lowest possible and yet I am facing battery drains.
Anyways, it seems this problem is beyond repair. I have literally tried every solution possible and nothing seems to have worked. So I guess it's time to move on.
Thank you for your time and information.
It's probably my screen that's consuming the battery. It can easily last up to 20 hours with 2G turned on the entire day. But as soon as I turn the screen on and start doing something, battery drains at like 1% every 60 seconds.

How old is your battery?.. I´d say get a new one if it´s older than 1 year..

[Q] Battery Drain Rate - Is this normal?

Hello, I have just a got an XT1254 for around a week so I am still testing the device. Battery is always my biggest concern for every phone I had and therefore I like droid turbo's big battery.
After I have got the device, I tried to debloat most of the moto/verizon/amazon apps and managed to get only 1%-2% drain during sleep overnight. I haven't installed many apps at this moment, as I am testing how long I can get with minimal usage for one charge. It is now more than 2.5 days after charge and I have 62% left, and I disabled almost all censors. and only turn on data/wireless only when necessary.
My problem is, I still get a, I think, quite fast battery drain when screen on. I am not watching video or playing games, I just use whatsapp or test camera, not even facebook, and I get 1% drain in 2-3 minutes. What I want to ask is, is this normal? Or is there anything I can do to reduce further? I think the screen eats most of the battery, and I used auto brightness, or manually to 10% brightness indoor, with dark wallpaper in launcher already.
I have no plan to root at this moment, but I think the processor speed can be lowered. Is there anything I can tweak about the processor?
Thank you very much for answering!

zhaoyun said:
Hello, I have just a got an XT1254 for around a week so I am still testing the device. Battery is always my biggest concern for every phone I had and therefore I like droid turbo's big battery.
After I have got the device, I tried to debloat most of the moto/verizon/amazon apps and managed to get only 1%-2% drain during sleep overnight. I haven't installed many apps at this moment, as I am testing how long I can get with minimal usage for one charge. It is now more than 2.5 days after charge and I have 62% left, and I disabled almost all censors. and only turn on data/wireless only when necessary.
My problem is, I still get a, I think, quite fast battery drain when screen on. I am not watching video or playing games, I just use whatsapp or test camera, not even facebook, and I get 1% drain in 2-3 minutes. What I want to ask is, is this normal? Or is there anything I can do to reduce further? I think the screen eats most of the battery, and I used auto brightness, or manually to 10% brightness indoor, with dark wallpaper in launcher already.
I have no plan to root at this moment, but I think the processor speed can be lowered. Is there anything I can tweak about the processor?
Thank you very much for answering!
Click to expand...
Click to collapse
This:
http://forum.xda-developers.com/droid-turbo/general/google-play-services-battery-drain-t3083672
and this:
http://forum.xda-developers.com/droid-turbo/general/sorcery-t3109510/
Besides, you should know that KitKat stand by time is horrible. I passed from around 10% battery drain overnight to around 2% with Lollipop. You need root to tweak the processor.
:fingers-crossed:

Galaxo60 said:
This:
http://forum.xda-developers.com/droid-turbo/general/google-play-services-battery-drain-t3083672
and this:
http://forum.xda-developers.com/droid-turbo/general/sorcery-t3109510/
Besides, you should know that KitKat stand by time is horrible. I passed from around 10% battery drain overnight to around 2% with Lollipop. You need root to tweak the processor.
:fingers-crossed:
Click to expand...
Click to collapse
Thank you and I have tried to read the posts. The google play service doesn't seem to be the problem of my device. The drain during sleep is somewhat acceptable, and anyway I need to keep background data on for play service. My problem is, when screen on, it drains 1% in 2-3 minutes doing simple tasks like whatsapp and camera, and the brightness is already either auto or minimum. And my point is, given the huge battery and nothing serious being done, it still drains more than my previous phone (sony m2 also running kitkat 4.4.4)

zhaoyun said:
Thank you and I have tried to read the posts. The google play service doesn't seem to be the problem of my device. The drain during sleep is somewhat acceptable, and anyway I need to keep background data on for play service. My problem is, when screen on, it drains 1% in 2-3 minutes doing simple tasks like whatsapp and camera, and the brightness is already either auto or minimum. And my point is, given the huge battery and nothing serious being done, it still drains more than my previous phone (sony m2 also running kitkat 4.4.4)
Click to expand...
Click to collapse
You should take a look at the apps you have installed, besides this, I think the drain is pretty normal for a QHD screen. Remember there are great number of pixels to move in this screen, so the battery also suffers from this.

Galaxo60 said:
You should take a look at the apps you have installed, besides this, I think the drain is pretty normal for a QHD screen. Remember there are great number of pixels to move in this screen, so the battery also suffers from this.
Click to expand...
Click to collapse
I attach a screen capture of my battery screen.
My phone is new and I haven't installed many things. Just nova launcher plus some widgets. BTW, may I ask whether phone idle contribute 25% of power is normal. Yes I mostly leave the phone standby and actually do not have real use except phone, sms and whatsapp.

zhaoyun said:
I attach a screen capture of my battery screen.
My phone is new and I haven't installed many things. Just nova launcher plus some widgets. BTW, may I ask whether phone idle contribute 25% of power is normal. Yes I mostly leave the phone standby and actually do not have real use except phone, sms and whatsapp.
Click to expand...
Click to collapse
I don't see anything wrong with the drain, all is perfectly normal. Phone idle is on top when you don't use the phone, so I think you have no problems at all.

HTC One M7 Battery Drain and Overheating

I just replaced my aging iphone 4 with an HTC One M7.
So far, I'm loving having an Android phone, and I'm really glad I switched, but I seem to be having a problem with the phone.
It is getting pretty hot and the battery is draining alarmingly fast.
The phone was reset to factory settings when I received it yesterday, and it is the AT&T software version. It is on Android 4.4.2
Although this is my first Android phone, it is not my first Android device (Xperia Play used as a portable emulator, Nvidia Shield, Asus Memo Pad HD7) so I knew the obvious things to try.
The phone feels slightly warm at all times, even when just sitting in my pocket. When I have a CPU-intensive app (youtube for instance) running, the phone gets pretty hot.
I understand that the aluminum chassis transmits heat very efficiently, and that this phone should feel warmer than a plastic phone, so I installed a CPU temperature app.
I'm getting in the high 40's to low 50's (celsius) with no CPU-intensive apps running.
Looking in my running apps, I don't see anything that looks like it is making heavy demands on the CPU.
While at work today, I put it in airplane mode (but kept wifi on) because I don't get a very good signal at work anyway, and I thought this might be causing the battery to drain quickly.
I forgot about this, and so the phone has been in airplane mode since 1pm today (it is now 8:45).
While browsing the internet just now looking for a solution to the problem, I watched as the last 18% of the battery drained down to 1% in around 15 minutes.
This is in airplane mode, with battery saving mode activated, Blinkfeed deactivated, and the screen on minimum brightness.
Does this sound like abnormal behavior?
I need to know fast, because if there is something wrong with the phone, I need to return it without delay.

DoctorBeat said:
I just replaced my aging iphone 4 with an HTC One M7.
So far, I'm loving having an Android phone, and I'm really glad I switched, but I seem to be having a problem with the phone.
It is getting pretty hot and the battery is draining alarmingly fast.
The phone was reset to factory settings when I received it yesterday, and it is the AT&T software version. It is on Android 4.4.2
Although this is my first Android phone, it is not my first Android device (Xperia Play used as a portable emulator, Nvidia Shield, Asus Memo Pad HD7) so I knew the obvious things to try.
The phone feels slightly warm at all times, even when just sitting in my pocket. When I have a CPU-intensive app (youtube for instance) running, the phone gets pretty hot.
I understand that the aluminum chassis transmits heat very efficiently, and that this phone should feel warmer than a plastic phone, so I installed a CPU temperature app.
I'm getting in the high 40's to low 50's (celsius) with no CPU-intensive apps running.
Looking in my running apps, I don't see anything that looks like it is making heavy demands on the CPU.
While at work today, I put it in airplane mode (but kept wifi on) because I don't get a very good signal at work anyway, and I thought this might be causing the battery to drain quickly.
I forgot about this, and so the phone has been in airplane mode since 1pm today (it is now 8:45).
While browsing the internet just now looking for a solution to the problem, I watched as the last 18% of the battery drained down to 1% in around 15 minutes.
This is in airplane mode, with battery saving mode activated, Blinkfeed deactivated, and the screen on minimum brightness.
Does this sound like abnormal behavior?
I need to know fast, because if there is something wrong with the phone, I need to return it without delay.
Click to expand...
Click to collapse
Is the phone brand new? It runs more the first time you turn it on, I think due to some profiling. If it's still like that the day after turning it on for the first time I'd probably be concerned. It could be due to something you've installed--what have you installed (if you don't mind sharing)?
I've definitely experienced what you're talking about on CyanogenMod, but never that I can recall on the stock ROM. When it happened on CyanogenMod, rebooting generally seemed to fix it.