Develop Bugs

My G2 will shut itself off - any suggestions?

I'm looking for any ideas for the problem I'm having on my G2. I'm afraid it's a hardware problem and not much I can do about it.
I started having problems after upgrading from CM 7.1 to 7.2, but I don't think it was related to the upgrade. I started having battery draining problems, the phone took forever to get fully charged, and car mode would automatically start sometimes when plugging up or unplugging the charger. I cleaned the usb port with alcohol (with battery removed), let dry, and restarted. Now I don't have the car mode problem and the battery problem is somewhat better.
My problem now is that the phone will just die when I'm using it. Usually when I'm using the browser. I'll be scrolling on a page and the phone will just turn itself off. Like the battery died. I can turn the phone back on and it will start up, get all the way started back up, but while it is still loading the home screen widgets, it will go off again. I can repeat this several times. The only way to recover is to plug in the charger. I don't have to hit the power button again, just plugging in the charger will start up recovery mode automatically, I'll choose reboot and the phone will start normally then and stay on.
The phone never dies when I'm not using it. I'll carry it all day, making phone calls on and off, and it'll stay on with no problem. Mostly, I only have the problem when using the browser. Also had the problem while using my newsreader. Once during playing a game. But if I start up browsing the internet, it doesn't take long before it will turn itself off. A matter of a couple of minutes. I don't have the problem with reading emails with K9. Don't have a problem in downloading from the internet such as podcasts. Don't have a problem in sending text messages. Don't recall it shutting down while using the Facebook app. After putting up with this for a week, some troubleshooting and observations.
I never have this problem if the charger is plugged in. Only when it is running fully from the battery.
I've tried swapping to a different battery.
Turned down the overclocking with no difference.
I've changed to other recoveries, CM 7.2, CM 7.1, a CM 7.1 that I was running in May. No difference.
I've swapped memory cards.
I've reset battery stats.
No difference if running on wifi or just data.
Clearing caches made no difference.
So, I start thinking it must be a hardware problem, but then why does it only crop up when internet browsing. Must be power related since plugging in the charger makes it go away, but why does it not have a problem with using the phone in other ways?
Any suggestions on what I could try?

You could try to see if there is too much voltage drop when you start something power-hungry. Use a battery voltage logger and post the results. Start logging, let the phoneidle for a minute and then start browsing. Even if the phone shut off, the log should still be there after rebooting.

Thanks for the idea. I can't locate a logger that looks like it would work. It would have to capture a quick drop in voltage that is momentary. This problem happens even on a full battery and when the phone come back on (either momentarily or after a recovery reboot) the battery level is unchanged.

You might try as well an other way: first idle, then gradually step up to a more power hungry app to see when the problem actually happens. I have no other ideas...

Make sure that you dont have any contact with the battery and the door.
Normally batteries are covered with an aluminum wrap, and can cause short-cuts with the phone itself.
I searched it for a while with the galilio batteries.
You can try to put some saranhwrap around the battery.

I have the same problem with two different batteries. But I'm ready to try that too.

Battery graph
So here's a graph of my battery status. Long time to charge to 100%. Discharges pretty rapidly. Each downturn ends in the phone turning itself off. Notice that at 7:30 today, it turned itself off, I did a recovery reboot, then noticed it wasn't charging very well (green line turns to blue but doesn't increase), then I did a manual reboot and when the phone restarted, it showed the battery was at 100% charge (from about 60% before the reboot).
What do you think - hardware or software?

oVeRdOsE. said:
Make sure that you dont have any contact with the battery and the door.
Normally batteries are covered with an aluminum wrap, and can cause short-cuts with the phone itself.
I searched it for a while with the galilio batteries.
You can try to put some saranhwrap around the battery.
Click to expand...
Click to collapse
Well, I just took the cover off for awhile and tried it. Played crosswords (Shortz) for awhile with no problems. Started my newsreader (Newsrob) and it shut itself off in about 15 seconds. So, no short to the battery cover.

Same thing is happening to me. I use poweramp or the browser and the G2 just shuts off. Then I restart it and it tells me that the battery is low. Once I shut it down and reboot in recovery and wipe the battery cache it's back to it's normal battery level. I disabled data and set my phone for 2G networks only and it didn't shut off after. I'm assuming this is a wireless issue? I'm running mimicry 1.3.0 on my G2.

Had the same problem. Swapped out batteries and problem gone.
Sent from my HTC Vision using xda app-developers app

Did you swap the battery and immediately have no further problems? I tried swapping my battery already and still have the same problem.

[Q] HELP! Battery Low Notfication CRAZY!

Hello all,
I recently updated my Galaxy Nexus to Bixie's stock 4.2.2 and my phone is going nuts. First of all it's draining battery really quickly, even though I'd wiped caches and essentially done a factory reset. When I plug it in to charge it takes a minute or so before the "charge" notification kicks in. The opposite occurs when I unplug it.
But, by far the CRAZIEST thing it does is once the battery hits 15% I start getting a battery low notification/popup like mad. It essentially spams the hell out of me to the point that the phone is utterly and completely unusable. I dismiss, 2 seconds later it pops up, rinse and repeat.
Oh also, the battery usage meter where it tells you how long it's been on battery and breaks down the apps that are using how much battery. That value never changes at all.
Please help!
Of course, thanks to all those that even attempt to give an appropriate solution.

ellimistx99 said:
Hello all,
I recently updated my Galaxy Nexus to Bixie's stock 4.2.2 and my phone is going nuts. First of all it's draining battery really quickly, even though I'd wiped caches and essentially done a factory reset. When I plug it in to charge it takes a minute or so before the "charge" notification kicks in. The opposite occurs when I unplug it.
But, by far the CRAZIEST thing it does is once the battery hits 15% I start getting a battery low notification/popup like mad. It essentially spams the hell out of me to the point that the phone is utterly and completely unusable. I dismiss, 2 seconds later it pops up, rinse and repeat.
Oh also, the battery usage meter where it tells you how long it's been on battery and breaks down the apps that are using how much battery. That value never changes at all.
Please help!
Of course, thanks to all those that even attempt to give an appropriate solution.
Click to expand...
Click to collapse
Okay so I reset back to factory. Unrooted, Locked, and installed a factory image from Google. Then it forced me to updated to 4.2.2. Now the notification issue is gone, BUT the phone NEVER SLEEPS. I press the power to turn off the screen and immediately it turns back on... anyone have any ideas?

[Q] Galaxy Nexus shutdowns to zero battery

Hi all, for some time i have very odd problem and i dont know how to solve it.
When i use 3G, or browser on wifi for some time ,scroll app drawer very fast,take picture with flash and similar ,phones shutdowns and cant turnoff because its says it have 0% battery, but i just plug it for minut as he is turing on and he can work again, but battery drop goes from 90% to 30%, then i restart phone and its 70% or some other value.
First heappend after i soft bricked my phone.
Dont know is it software,hardware or battery.I have JB 4.2.2, stock (i had root before softbrick)
I instaled antutu battery tester and when when cpu goes 100%, volt just go droping down from 3.9~3.7 to about 2.7V ,screen goes mad, all bright and pink, start flickering,like electromagnetic interference. some time vibration goes to maximum it feals like its going to explode and it just shoutdown.Some time i cant even even get to boot screen witouth waiting 5min. And when its turn of its shows 0% battery and turns off,untill i plug it to charger.
very annoying because I can not use my phone normaly
Have any ides? Sorry for bad english.

If a factory reset doesn't fix it then its hardware.

You record a battery voltage of 2.7V???? Something looks wrong. In normal conditions the 0% state of charge correspond to 3.3V to 3.2V as noticed on my GNex
You have a hardware problem. Only way : back to repair center

i bot new battery and everything is ok now

[Q] Unexpected shutdown when battery is low

Recently my N7(2013) will shut itself down when the battery is low (about 10%) without any warnings, not even the "Shutting Down" dialog that it should show whenever it shuts downs (except for the usual low batt warning when it reaches 15%). After the shutdown, I cant even turn it back on not even the screen, nor the low batt (waiting for charger) screen is showing up until I plug it into a power source the it will show the charging screen and then I can turn it on again.
Its been a few times now, not sure its a hardware or software problem though. It shouldnt shut down when it still has 10% in it right?
Attached is the screenshot of the Battery Usage that shows the battery level shots down to 0% immediately from 10%.
Nexus 7 2013, Stock, Not Rooted

Are you using a battery monitoring program (battery doctor, better battery stats, etc)? If so, look in their settings, to see if they are set to shut down @ 10%...

BSnapp said:
Are you using a battery monitoring program (battery doctor, better battery stats, etc)? If so, look in their settings, to see if they are set to shut down @ 10%...
Click to expand...
Click to collapse
Nah I don't trust these apps so I don't use them. Moreover I'm did not root it so even if I use them they shouldnt have the permission to shut it down

Simple fix
It is an issue I have suffered with a couple of times and it appears we are not alone. It seems that the battery calibration is out of whack. When you charge your nexus up does it stay at 100% for quite a while? I
tried factory data resets amongst other things and nothing worked. I stumbled across a thread with a really simple fix. Turn your tablet off for 2 hours. Then turn it on again. Mine miraculously lost 26% of battery in that time (from 100% where it had been for 8 hours down to 74%). Then it started to use the battery at a normal rate. Working fine now.

Note 2 keeps shutting itself

Hello, so I have one a bit strange problem with my Galaxy Note II. The problem is that the phone shuts down by itself randomly. You can't do anything on it unless you restart it by long pressing power button or pull out the battery. The interesting part is that if I have notification I havn't checked my LED keeps blinking even in that "power off" state. So I don't think its actually shutting down. Can anyone relate and help me what is the reason my phone is doing this? I forget to mention I noticed some battery drops in the default battery monitor when this "shut downs" occur. Can it be battery related? Also I'm running stock Android 4.4.2 and no root or what so ever.

podmatrix said:
Hello, so I have one a bit strange problem with my Galaxy Note II. The problem is that the phone shuts down by itself randomly. You can't do anything on it unless you restart it by long pressing power button or pull out the battery. The interesting part is that if I have notification I havn't checked my LED keeps blinking even in that "power off" state. So I don't think its actually shutting down. Can anyone relate and help me what is the reason my phone is doing this? I forget to mention I noticed some battery drops in the default battery monitor when this "shut downs" occur. Can it be battery related? Also I'm running stock Android 4.4.2 and no root or what so ever.
Click to expand...
Click to collapse
try with other battery or go to a gsm store and say "i need to buy a battery ?" if doesn't work , try to flash the rom again. or try with a multimeter a small bulb and you gone see if drops down