Database Users

[Q] Screen Turns On Randomly Without Touching Phone

When I leave the Nexus 4 on a flat surface with nothing around it, it will randomly turn the screen on, wait the 30 second timer, then turn back off.
I did just install 4.2.2, but I hadn't used it enough before to say if it only started since then.
I'm currently unrooted, though unlocked the bootloader when I first got it so I do plan to root soon, would flashing a custom kernel like franco kernel possibly fix this? Or would this be a problem in the rom or a third party app?
In BetterBatteryStats I saw 2 Kernel Wakelocks that seemed to have a high ammount of wakes.
(Screenshots Attached)
And here's the BetterBatteryStats Dump File: https://www.dropbox.com/s/dbc2vn3littc0fp/BetterBatteryStats-2013-02-21_054751350.txt
Any help would be highly appreciated, thanks.

Possibly a third party app.
Sent from my Nexus 7 using Tapatalk HD

Was gonna say that I'm having the same issue, but mine only lights up when I charge my phone..

Sfkn2 said:
Was gonna say that I'm having the same issue, but mine only lights up when I charge my phone..
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Click to collapse
That's normal bro. Mine does the same and so does every other phone I had.
Sent from my Nexus 7 using Tapatalk HD

scream4cheese said:
That's normal bro. Mine does the same and so does every other phone I had.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
Err I meant like, it keeps turning the screen on and off - like if the charger is disconnecting itself.

Sfkn2 said:
Err I meant like, it keeps turning the screen on and off - like if the charger is disconnecting itself.
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Click to collapse
Sounds almost like the charger has a short or something.

jsilvermist said:
Sounds almost like the charger has a short or something.
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Click to collapse
It does that with all sorts of different cables and chargers. Think I might have a loose USB port?

Maybe it's linked to the Daydream feature?

Sfkn2 said:
It does that with all sorts of different cables and chargers. Think I might have a loose USB port?
Click to expand...
Click to collapse
Not sure, guess it's possible, but even if it is lose I wouldn't expect it to effect it once it starts unless it gets bumped.
Also, what is the temp of the battery when charging? Not sure if it's true but I've heard that if the battery is over 40c it won't charge properly.
If you want, here's a really nice widget with temp on it: https://play.google.com/store/apps/details?id=ccc71.bmw
I would just be careful with anything to void your warranty until you figure out whats causing the problem, as I've heard a lot of stories about bad batteries, and shorts in usb causing the red light bug (For lack of a better name).

jsilvermist said:
Not sure, guess it's possible, but even if it is lose I wouldn't expect it to effect it once it starts unless it gets bumped.
Also, what is the temp of the battery when charging? Not sure if it's true but I've heard that if the battery is over 40c it won't charge properly.
If you want, here's a really nice widget with temp on it: https://play.google.com/store/apps/details?id=ccc71.bmw
I would just be careful with anything to void your warranty until you figure out whats causing the problem, as I've heard a lot of stories about bad batteries, and shorts in usb causing the red light bug (For lack of a better name).
Click to expand...
Click to collapse
Thanks for the link. I actually looked through the 'must have apps for the N4' thread under themes and apps, and Goku80 had posted a link to a battery meter that I just downloaded and installed moments ago. I have yet to see what the charge temp is, but I will report back tonight. Idle temp is around 25*c from what I've noticed just now.
The only thing I've noticed with temps so far is when I have my phone pulled in and I'm watching something on the phone. The phone gets really hot, and the system starts to lag badly. I would assume this is a fail-safe for the battery to not overheat by downclocking itself, but this is only a theory.
As for the red light bug, I saw my phone drop from 28% to 4% instantly out of nowhere yesterday, with no warnings. I immediately pulled the phone in, and watched the battery meter jump to 30%. According to the red light threads, I think it's a software issue with the phone shutting down completely when it thinks it's out of battery to prevent damage. Hopefully we'll never run into that issue ourselves.

Display problem when charging

Hi i have the latest cm-10.1-20130901-NIGHTLY-find5.zip and I have problems when charging while powered off: The display stays on while charging and the telephone overheats. Are there any fixes?
Best Regards ngt

negiot said:
Hi i have the latest cm-10.1-20130901-NIGHTLY-find5.zip and I have problems when charging while powered off: The display stays on while charging and the telephone overheats. Are there any fixes?
Best Regards ngt
Click to expand...
Click to collapse
Have you seen if this is a problem with other users? I'm using PAC ROM and have the same result with the screen being lit to a black screen when powered off and charging. I'm checking now to see if it overheats. It may be(and probably is) the screen on and charging at the same time that is causing it to heat up like that. My suggestion is to not charge while powered off if you can help it. A little warm is ok, but these quad-core phones can cook when that CPU is going.. I've felt mine to the point of needing to power it off with usage in the sun making it unbearably hot. And if it's getting HOT HOT.. than yeah.
3 things you can do.
1.Charge with phone powered on.
2.Go back to stock ROM where this was not an issue.
3.Work with the devs to try and figure out what is causing it. Be prepared to provide a logcat if the problem can't be reproduced on their end.
My phone has been charging off for about 10 minutes now and it still feels a little cool to the touch. Battery is 100% full. Not sure if that makes a difference. I'll keep in on charge for another 10. I'll update this post in a little bit.
**UPDATE** Its been on the charger for 30 minutes.. no heat increase. Note* I'm running PAC ROM AOSP ROM.

Batteries always get hot if you use them while they are charging. This is slightly harmful to the battery too, but if it only happens once or twice I wouldnt worry about it.
All AOSP roms on this device so far are afflicted by this problem. Just turn your phone on first and as soon as you see the boot logo you can plug it in. You'll get used to it.

shawnbon206 said:
Batteries always get hot if you use them while they are charging. This is slightly harmful to the battery too, but if it only happens once or twice I wouldnt worry about it.
All AOSP roms on this device so far are afflicted by this problem. Just turn your phone on first and as soon as you see the boot logo you can plug it in. You'll get used to it.
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Click to collapse
Yeah for sure. It wasn't me with the issue but the OP.

Coreym said:
Yeah for sure. It wasn't me with the issue but the OP.
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Click to collapse
Sorry I didn't mean to quote you

all good my man
Sent from my Find 5 using Tapatalk 4

cyano forever
Hi have problem with the microphone and display while charnging... but I don't want go back!!! Bye ngt

Use cm10.2
Sent from my Find 5 using xda app-developers app

maxwen said:
Use cm10.2
Sent from my Find 5 using xda app-developers app
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Click to collapse
maxwen, does cm10.2 for find5 have deadlocks like nexus 4 does?
I am waiting for the deadlocks to stop before I upgrade.

[Q] Miscalibrated battery, need help!

I need some suggestions on how to calibrate the battery on my n4. It got miscalibrated when I did the update 4.2 to 4.3 and I haven't been able to calibrate it since then, a week ago.
I tried using battery calibration from the store but it didn't work, I tried charging the phone from 0 to 100 and it didn't work.
I remember I had the same problem 2 years ago with my Atrix and I solved it by wiping the battery stats from recovery, but now twrp and Cwm removed this feature and I don't know how to solve my problem.
Maybe it would help flashing all back to stock with the toolkit?
If you have any suggestions I'd really appreciate it.

http://forum.xda-developers.com/showthread.php?t=1460553

qoolix said:
http://forum.xda-developers.com/showthread.php?t=1460553
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Click to collapse
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?

Elwood_It said:
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?
Click to expand...
Click to collapse
Either faulty battery or do the following:
1.Completley discharge N4
2.Charge fully(+2 hours after hitting 100&) WITHOUT disconnecting from the charger.
3.Repeat for better results.
Sent from my Nexus 4 using xda app-developers app

failly said:
Either faulty battery or do the following:
1.Completley discharge N4
2.Charge fully(+2 hours after hitting 100&) WITHOUT disconnecting from the charger.
3.Repeat for better results.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the answer. Should I carghe while it's off or on or it doesn't matter?

Elwood_It said:
Thanks for the answer. Should I carghe while it's off or on or it doesn't matter?
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Click to collapse
To be honest, I don't know.
But if I would be you I would just let it charge while it's off(So the big ass white battery icon).
Let me know if you got your battery sorted after the method I posted!

Elwood_It said:
Just the answer I didn't expected, and frankly a pretty useless answer, everybody knows that battery calibration doesn't improve battery life.
But I have other problems, like I turn off my device at 80% and when I turn it on it's at 77%. Do you think that's normal?
Click to expand...
Click to collapse
You mean off as in all the way off? If so, then that ~3% is being used when the phone boots.

korockinout13 said:
You mean off as in all the way off? If so, then that ~3% is being used when the phone boots.
Click to expand...
Click to collapse
I've had many phones, and none of them lost charge during the boot, at least not that many. I think that's the clear sign of battery miscalibration, I've had this problem before with another phone. Besides that, I've had a strange behaviour of the battery, for example I saw it lose 4% in 1 second, from 66 to 62 in a blink of an eye.

Elwood_It said:
I've had many phones, and none of them lost charge during the boot, at least not that many. I think that's the clear sign of battery miscalibration, I've had this problem before with another phone. Besides that, I've had a strange behaviour of the battery, for example I saw it lose 4% in 1 second, from 66 to 62 in a blink of an eye.
Click to expand...
Click to collapse
It's not that it's losing charge quickly, it's just the OS (or the hardware itself) doesn't always do the best job of reading it. There's not much you can do about that, and it's really not an issue unless you make it so by staring at your battery level all day.

korockinout13 said:
It's not that it's losing charge quickly, it's just the OS (or the hardware itself) doesn't always do the best job of reading it. There's not much you can do about that, and it's really not an issue unless you make it so by staring at your battery level all day.
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Click to collapse
Hi,
I'm having a similar issue. Phone rebooting to weird battery levels (not the %age it shutdown at).
Phone shutting down at 31% battery and rebooting to 0%.
I tried charging only to 100% yesterday with the phone ON.
Do I have to charge it even after it's charged to 100%?

failly said:
To be honest, I don't know.
But if I would be you I would just let it charge while it's off(So the big ass white battery icon).
Let me know if you got your battery sorted after the method I posted!
Click to expand...
Click to collapse
I tried charging through the night and then discharging it completely and charging it completely again. I also tried deleting the batterystats file (even though I know it doesn't do anything)
So what do you suggest I should do? Get the phone replaced or get the battery changed?
I live in India and the phone is from Canada, so replacing the phone will take some time but I can get the battery replaced for around $20
Also my nexus is also showing +ve mA values while it's not charging, and the values are absolutely crazy, +268, +168, +1171 (in batter monitor widget)
Please tell me what I should do.

japmeet said:
I tried charging through the night and then discharging it completely and charging it completely again. I also tried deleting the batterystats file (even though I know it doesn't do anything)
So what do you suggest I should do? Get the phone replaced or get the battery changed?
I live in India and the phone is from Canada, so replacing the phone will take some time but I can get the battery replaced for around $20
Also my nexus is also showing +ve mA values while it's not charging, and the values are absolutely crazy, +268, +168, +1171 (in batter monitor widget)
Please tell me what I should do.
Click to expand...
Click to collapse
Before you replace the battery try to disconnect the battery's flex cable and reconnect it [after you charge to device to 100% and turn it off of course] check if its 'reset' the battery.

[Q] Galaxy S4 Battery (I-9500) drains out quickly while playing Candy Crush

Hi,
I saw many folks are facing similar problems, but my problem is little different. Now a days whenever I play Candy Crush my S4's battery drains out very quickly i.e. 60-70% in the span of 5 - 10 minutes, also it gets charged up with equally fast (about 80 % in 10 min). My phone is just 3 months old...earlier there was no such problem. I haven't installed any new apps in between. Is it the problem with the battery or with the handset?
Any help will be greatly appreciated!!
Thanks

The battery drain in almost time cause of software problems
But charging too fast Im saying it could problem with the battery it self
Try to charge your phone with original charger

RubbaBand said:
The battery drain in almost time cause of software problems
But charging too fast Im saying it could problem with the battery it self
Try to charge your phone with original charger
Click to expand...
Click to collapse
Thanks for a quick reply.... but I'm using an original charger which came along with my S4.

umi511 said:
Thanks for a quick reply.... but I'm using an original charger which came along with my S4.
Click to expand...
Click to collapse
Now if you didnt root or flash any custom rom to your device
Im sure 100% that the problem with your battery

umi511 said:
Hi,
I saw many folks are facing similar problems, but my problem is little different. Now a days whenever I play Candy Crush my S4's battery drains out very quickly i.e. 60-70% in the span of 5 - 10 minutes, also it gets charged up with equally fast (about 80 % in 10 min). My phone is just 3 months old...earlier there was no such problem. I haven't installed any new apps in between. Is it the problem with the battery or with the handset?
Any help will be greatly appreciated!!
Thanks
Click to expand...
Click to collapse
switch off your phone. charge till 100% go into recovery and give a factory data reset! your problem solved.

Mandark52 said:
switch off your phone. charge till 100% go into recovery and give a factory data reset! your problem solved.
Click to expand...
Click to collapse
I don't think this will work.
My guess is you have a faulty battery. That happens. Get a new one.

Lennyz1988 said:
I don't think this will work.
My guess is you have a faulty battery. That happens. Get a new one.
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Click to collapse
lennyz1988 I respect you but here i think there is a fault in battery caliberation. Your advice is also true but why not try a factory reset before purchasing a new one?

have you tried looking at your battery on settings ? see if what apps consumes most of your battery

Mandark52 said:
lennyz1988 I respect you but here i think there is a fault in battery caliberation. Your advice is also true but why not try a factory reset before purchasing a new one?
Click to expand...
Click to collapse
It's because from what I remember, battery callibration is not regulated at rom level. It's a chip inside the battery.
For example:
With the old HTC Desire you could wipe battery stats in the recovery.
For the Samsung Galaxy S2 this didn't have any effect because the chip inside the battery regulated the calibration.
From what I remember it's the same for the S4. If the calibration does not work (eg charging to 100%, taking the battery out, putting it back in, recharge again till 100%) then his battery is faulty. So unless he messed his rom up seriously, no wipe or other rom will help. His OS just reads the data from the chip.

Lennyz1988 said:
It's because from what I remember, battery callibration is not regulated at rom level. It's a chip inside the battery.
For example:
With the old HTC Desire you could wipe battery stats in the recovery.
For the Samsung Galaxy S2 this didn't have any effect because the chip inside the battery regulated the calibration.
From what I remember it's the same for the S4. If the calibration does not work (eg charging to 100%, taking the battery out, putting it back in, recharge again till 100%) then his battery is faulty. So unless he messed his rom up seriously, no wipe or other rom will help. His OS just reads the data from the chip.
Click to expand...
Click to collapse
learned something new today
Sent from my GT-I9500 using XDA Premium 4 mobile app

Mandark52 said:
learned something new today
Sent from my GT-I9500 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks Guys... most of you were absolutely right... I took my S4 to the service center and it was found that it was the problem with the battery... it got deformed as well... I got it replaced now... You guys are great ... Thanks once again.

Shuts down as if low-battery, but with 50% - 95% left!

This has been driving me nuts for ages, and now I just use the battery to transfer my phone from one charger to another! But to be honest I haven't tried anything to fix it as yet.
It started with my phone shutting down when I took a few photos - now, if my phone gets down to 80% I expect it to shutdown. It won't fire back up until I put it on charge.
Occasionally when I try to turn it back on, it wont fire up, and the blue LED comes on and stays on until I charge it or take the battery out.
Occasionally it will reach 50%, but that would be a rare occasion! I do still have the original battery, which is now over two years old.
It's a great phone - if only the battery would last longer than 10 minutes under use! It hasn't been rooted or anything - it is as I got it from new.
Any help would be greatly appreciated.
TIA

magicdrshoon said:
I do still have the original battery, which is now over two years old.
Click to expand...
Click to collapse
A new battery is really cheap ( 15-25 usds) and probably would solve your problem.
There is no reason for this topic unless you have the original battery.

magicdrshoon said:
This has been driving me nuts for ages, and now I just use the battery to transfer my phone from one charger to another! But to be honest I haven't tried anything to fix it as yet.
It started with my phone shutting down when I took a few photos - now, if my phone gets down to 80% I expect it to shutdown. It won't fire back up until I put it on charge.
Occasionally when I try to turn it back on, it wont fire up, and the blue LED comes on and stays on until I charge it or take the battery out.
Occasionally it will reach 50%, but that would be a rare occasion! I do still have the original battery, which is now over two years old.
It's a great phone - if only the battery would last longer than 10 minutes under use! It hasn't been rooted or anything - it is as I got it from new.
Any help would be greatly appreciated.
TIA
Click to expand...
Click to collapse
Your battery needs to be replaced..
Dial *#0228# this will reset the battery calibration. Charge it to 100%..
see if the problem still remains that means your battery is almost dead and expect a random shutdowns at anytime
Sent from my SM-N910G using Tapatalk

heisenberg7 said:
A new battery is really cheap ( 15-25 usds) and probably would solve your problem.
There is no reason for this topic unless you have the original battery.
Click to expand...
Click to collapse
I understand that the battery is probably past it's best, but it was the fact that it states that it has lots of life left, and then acts as if it doesn't that throws me. That's the reason why I have posted this topic.
Amar.B said:
Your battery needs to be replaced..
Dial *#0228# this will reset the battery calibration. Charge it to 100%..
see if the problem still remains that means your battery is almost dead and expect a random shutdowns at anytime
Sent from my SM-N910G using Tapatalk
Click to expand...
Click to collapse
I've done this now. Thanks for the tip. It doesn't seem to have made any difference though so it's probably just the battery.
I just expected it to indicate the correct battery level in the battery level indicator.
You live and learn! Thanks for the replies.

magicdrshoon said:
I understand that the battery is probably past it's best, but it was the fact that it states that it has lots of life left, and then acts as if it doesn't that throws me. That's the reason why I have posted this topic.
I've done this now. Thanks for the tip. It doesn't seem to have made any difference though so it's probably just the battery.
I just expected it to indicate the correct battery level in the battery level indicator.
You live and learn! Thanks for the replies.
Click to expand...
Click to collapse
Anytime mate.. cheers
Sent from my SM-N910G using Tapatalk