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Guys,I own a T Mobile G1 Android 1.6 Phone and recently I’m facing some problems. The problem that appeared recently is with the battery drain. before some days ago the battery of my G1 lasted up to 4-5 days, without using Wireless, GPS, and Bluetooth. If I used the mentioned services normally the battery lasted up to two days. But recently the battery is draining too fast. Within 4 hours the battery goes down less then 15% even I do not use any mentioned services. I keep my phone on standby, without talking a single minute with the phone, not using any service etc, and again it goes down very quick. I took some measures according to HTC instructions how to save the battery but again it does not function. I uninstalled all applications and reset the phone to factory setting by again same thing. Then I searched on the Google some instructions, I tried also that one’s but again it does not function. I always used HTC charger that came with the phone but again same problem. What is the strangest thing that after some days the battery gets back and works perfectly for two weeks, which means I use the phone normally without charging 4-5 days. As I operate very well with the smartphones, Pocket PC’s etc I start analyzing G1 and monitoring very closely why the battery goes down, I monitored for a long time the query under the :About Phone-Battery use- and I see there that Andorid OS is using the battery from 76% up to 85%. Now it came to my mind that something is keeping engaged or it keeps running the Andorid OS always on. Then I suspected that thre my be any virus on my phone, but I installed form Market Flexilis/lookout antivirus application, but there was no virus and again the battery goes very quickly down. As I said after sometime the system returns to normal and the battery lasts for 4-5 days, and when I check the information under Phone,Battery use, I see that the Andorid OS is spending only 6% of the battery. Comparing with the previous description it is a huge difference. According to my opinion there is a small problem with any file which keeps always running to much the Andorid OS. Can you please give me any instruction why Andorid OS is spending that much the battery? Or give me any instruction how to prevent this operation that keeps Android OS to much engaged? or is there any programming mistake?, is there any need for update?, do I need to root my phone as it is not rooted? The reason why I’m thinking that there is a technical problem is because sometimes the system gets back to normal and sometimes it goes out of normal running. I appreciate a lot if you could help me to resolve the mentioned problem.
I've noticed the same thing on my G1 sometimes there is fast battery drain and it seems associated with Android OS. The percentage is over 70%. I also notice it be associated with the display as well. Could be that there is some process that won't stop running and is using Android OS or it could be that on other occasions the display is not going into sleep mode properly. I wish I knew how to fix these problems but I don't. I just observe them.
The battery issue, is an up and down problem for me. Sometime I can go through it in one day or less, other days it will last me for 2 plus days.
It also could be that the battery need replacing. Who's know.
I just bought a 2nd hand G1 - works just fine. I rooted and installed CM6.1.
My battery drains within 1-2 hours. I've tried various methods of resetting stats, with no luck. How frustrating! I wonder if it's a battery hardware problem or software?
battery
I also faced bad battery life on various roms. Since I'm using COS-DS (android 2.3.3) http://forum.xda-developers.com/showthread.php?t=950765 and the Biffmod kernel http://forum.xda-developers.com/showthread.php?t=950765 the phone runs more than 24h when texting and calling. Of course you should apply the 14MB RAM hack in comination with this kernel http://forum.xda-developers.com/showthread.php?t=831139. On standby (everything off, except data and 3g) my G1 runs >48h, before it needs to be plugged in.
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mqazimi said:
I monitored for a long time the query under the :About Phone-Battery use- and I see there that Andorid OS is using the battery from 76% up to 85%.
Click to expand...
Click to collapse
Sounds like the basic description of the USB Charging Bug.
The bug triggers if the G1 is using a kernel starting 2.6.35 and onward tree, and charged using the USB instead of AC wall charger.
A couple of option to avoid the super discharge after that (you can use either);
1. Reboot after you unplug the USB charger.
2. Change kernel to one from 2.6.34 tree
You can also visit the Dev sub-forum, there's a thread there discussing the debugging process.
It is so unpredictable for me...I have just got into the habit of a reboot after unplugging USB.
Battery drain on the G1
I have the same problem. Even on standby it drops to less than half of its battery life. Sometimes its worse. today i noticed that the battery percentage was at 84. Next thing I know the phone reboots itself and it displays that it has 1% battery, battery icon empty all in red and LED flashing in red. Then I turn it off connect it to the charger, after a couple of seconds I turn it back on and says its 90 something percent. Could be a virus or just a battery bug,that's my guess. I scanned the phone with Lookout Security and there was no Virus,malware or spyware found.
I want to try different kernels for this battery issue but want to make sure I am installing the right one.
I have CM6.1 with 2.22.23.02 radio and DangerSPL installed. Can I just load any of the kernels built for EBI0?
Specifically, can I flash the kernel in the 1st post here? http://forum.xda-developers.com/showthread.php?t=1010932
Thanks.
First things first, this is my first time posting on XDA Developers and yes I have searched the forums for a similar question/answer and only found one but my I had a small additional problem as well.
Problem 1) My battery indicator is always wrong, one time it says it's 50% and then I restart my phone and then it says 15%, then I play games until it's 12% and then restart again and then the phone now says 20%.
Problem 2) When my battery indicator is incorrect, when I turn off my phone, the xperia T will just restart and then I have to turn it off again.
What I've done;
- I used sony's repair software online (Sony PC Companion)
- Used ICS format option
- Exchanged Xperia T for another one at Carphone Warehouse 2-3 days ago (Original purchase was last week)
- Drained the battery from 100% to 0% and then charged it again.
NOTE: My Xperia T was bought from UK (Carphone Warehouse) and I haven't flashed it onto another ROM nor have I rooted the phone and the phone is unlocked too.
NOTE 2: I had exchange the phone once and still same problems occurred, dunno if I'm "Bad Luck Brian" this week or all certain xperia T's behave this way.
cmr333 said:
First things first, this is my first time posting on XDA Developers and yes I have searched the forums for a similar question/answer and only found one but my I had a small additional problem as well.
Problem 1) My battery indicator is always wrong, one time it says it's 50% and then I restart my phone and then it says 15%, then I play games until it's 12% and then restart again and then the phone now says 20%.
Problem 2) When my battery indicator is incorrect, when I turn off my phone, the xperia T will just restart and then I have to turn it off again.
What I've done;
- I used sony's repair software online (Sony PC Companion)
- Used ICS format option
- Exchanged Xperia T for another one at Carphone Warehouse 2-3 days ago (Original purchase was last week)
- Drained the battery from 100% to 0% and then charged it again.
NOTE: My Xperia T was bought from UK (Carphone Warehouse) and I haven't flashed it onto another ROM nor have I rooted the phone and the phone is unlocked too.
NOTE 2: I had exchange the phone once and still same problems occurred, dunno if I'm "Bad Luck Brian" this week or all certain xperia T's behave this way.
Click to expand...
Click to collapse
I have come across the issue of the phone restarting on power off. Quite strange but yet couldnt isolate as to why it does it.
Just gt my phone exchanged due to a suspected bad microphone, and the new one too restarted on a power off.
The previous one seemed quite good with battery life and the new one is yet on the 1st cycle of drain.
Yes, occasionaly my phone does a restart instead of a power off, but i find it quitw usefull because normally I am rebooting to get into recovery and I hate not having a reboot option...
Well done sony
EDIT
The other thing that bigs me is the random reboots...does anyone else get this on stock kernel. I am advanced v3 stock kernel.
gregbradley said:
Yes, occasionaly my phone does a restart instead of a power off, but i find it quitw usefull because normally I am rebooting to get into recovery and I hate not having a reboot option...
Well done sony
EDIT
The other thing that bigs me is the random reboots...does anyone else get this on stock kernel. I am advanced v3 stock kernel.
Click to expand...
Click to collapse
Good to hear the restart is a common thing
I've had a random reboot once, while running sat nav sw (sygic).
Today I exchanged my phone to Galaxy Note 2, couldn't be happier.
Also, I've contacted Sony before the exchange (and after this thread was posted) and they said that the issue is known by Sony and it's unknown if it's a software or hardware problem for now, wish you guys good luck and hopefully it's a software bug
gregbradley said:
Yes, occasionaly my phone does a restart instead of a power off, but i find it quitw usefull because normally I am rebooting to get into recovery and I hate not having a reboot option...
Well done sony
EDIT
The other thing that bigs me is the random reboots...does anyone else get this on stock kernel. I am advanced v3 stock kernel.
Click to expand...
Click to collapse
In the past month on which I own the device I maybe had one or two random reboots. All stock only rooted. So my guess is its in the advance kernel. Since most people who have it have a unlocked bootloader
Did I help? Then please don't forget to press the thanks button.
Is your question solved? Then mark your question solved in your title.
Sent from my Xperia T using XDA Premium.
I haven't experienced any restarts but my battery level indicator is a bit hit and miss.
I can run my batt down to, say, 5% then turn the screen off and leave it for a while and it'll report something like 15% when I turn the screen back on several minutes later. It will also stay working for AGES when at 1% - my best effort was just under an hour of video with 1% being reported!
I'm sure it'll all get fixed in an update. The T is much more stable than my G-Note was just after release, it took months for Samsung to sort things out on it!
Not random reboots nor battery level issues. Currently in fw 195.
The first 2 weeks of my tx, it could stay at 100% for several hours even over night.
After that, It could stay at 1% for up to 3 hours. Lol
The indicator is not Accurate, but hey, I got pretty good battery life out of TX, around 30hrs per charge.
As for the battery indicator: the percentage is calculated based on the current the battery puts out. The problem with current batteries is, if you pull a lot of energy in a short amount of time (boot/reboot, play game, other hard phone use) the current temporarily drops and thus a wrong percentage is calculated. After a while, the current recovers and the correct value will be shown. Comparable to the fuel gauge showing less/more fuel when parked at a steep hill.
This explains how the meter can fluctuate. What I cant answer is if your phone acts inside the "tolerance margin" or if its way off. My Galaxy Note recently went from 30% to 5% in a couple minutes (I used the hell out of it...) and after I stopped using it, it went back to 15% overthe following 30 mimutes.
As for the other issue, I obviously cant help as I dont possess a X T.
Gesendet von meinem ASUS Transformer Pad TF300TG mit Tapatalk 2
So far battery life seems insane with the extended standby mode... Haven't run a full day yet but it's barely dropping at all for the last couple hours.
Sony T restart problems
Hey guys,
Just looking at sony website, i searched xperia t and in the tutorial it said that holding the power off button turns the phone off while holding the power off button and volume up button at the same time makes it restart. All you guys saying you've got problems with the device re-booting. ITS NOT THE DEVICE ITS YOU PRESSING THE VOLUME UP BUTTON:silly: . A little research never hurts every once in a while!!!!!!!!!!
Noticed the battery percentage peculiarities too... Can't we hide the battery percentage altogether? It makes me anxious.
Had only 1 reboot on the other hand, while going into airplane mode. Phone is pretty stable (build 223).
I was having the same problem + some. Got a replacement TL and it behaves normally Read this post, http://forum.xda-developers.com/showthread.php?t=2355862 if it sounds familiar get a replacement ASAP
gpgon said:
I was having the same problem + some. Got a replacement TL and it behaves normally Read this post, http://forum.xda-developers.com/showthread.php?t=2355862 if it sounds familiar get a replacement ASAP
Click to expand...
Click to collapse
That's 3 VERY old threads you have dug up, can I ask the reason why you are doing so?
Hi all,
I have weird battery issue with my Razr i xt890 and I'd like some help. I have tried googling for information, but there's too much noise and I can't find anything suitable.
I'm asking on this site because I know the people on here are really knowledgeable.
My Razr i (with Jelly Bean) seems to have erratic battery readings. Sometimes it'll drop to 6%, and then go up to 90%, and jump around to points in between. I have even seen it drop to 1% and then go up to 6% (or something like that).
Needless to say, this makes the phone unusable because I don't know when it's on low battery so I can charge it. Furthermore, twice, it has reported low battery and then automatically shut itself down.
I hope someone can help with this, because I'm really stuck. I bought this phone overseas, and I don't really want to send it back overseas for warranty repairs.
So, some history.
Before the issue:
This is a stock Razr i, running Retail GB software. When I bought it, it was running 81.5.31002.Retail.en.GB 4.0.4. I upgraded to 81.5.39001.Retail.en.GB 4.0.4 and it's been running fine until this issue happened. I normally get about 4.5-5.5 days of battery before I recharge the phone.
This is stock software. No root. No bootloader unlock. No custom roms.
The issue:
I charged up my phone yesterday, and unplugged it from the charger at 100% battery. There was a notification that 91.2.29001.Retail.en.GB 4.1.2 was available. I selected 'Later' because I was busy at the time.
A bit later (maybe about an hour?), I went back to the phone and checked for updates, and selected to download the update. After it was downloaded, I noticed the battery was about 95%, and then I proceeded to install.
I figured 95% power should be sufficient to perform an upgrade.
The install took, maybe 10-15 minutes? At first glance, it seemed successful, but when the phone started up again, the battery reading was at 100%.
I distinctly remember thinking 'This is impossible. There's no way it could be 95% before the install, and 100% afterwards'.
I played around with the phone a bit (to try out Jelly Bean), and after a few minutes, the battery reading dropped to 60% or something.
That's when I knew something was wrong.
Since then, the phone battery reading has been erratic. If I plug it into a charger, it takes a few minutes and then shoots up to 100%. Unplug it, and it drops to a low level within minutes, and then goes up and down like a yo-yo. Twice, the phone went to a very low level, and then shut itself off.
I've tried various charging/unplugging cycles, and nothing has worked yet (Although I didn't have the patience to try an 8-hour charging cycle yet).
Please see the attached images to see what I mean.
The graphs are just bizarre.
I also did a factory reset (from the Privacy menu rather than 'recovery') but that didn't help.
At the moment, I haven't tried to root the phone or unlock the bootloader. I am still keeping the option of warranty open.
I can't think of a reason why this is happening. It doesn't seem to be a simple calibration or battery stats issue. I think the battery is working okay (because it was fine before the upgrade), just that the readings are wrong.
The phone is operating okay in all other respects. If I ignore the battery readings and the 'low battery' alerts, the phone continues to work ... except when it shuts itself down.
Another theory could be that ... because I upgraded without plugging the phone in, perhaps there was insufficient power during the upgrade and caused some corruption, and I have a faulty software/firmware? Not sure how I could test that though.
Any ideas, any one? Please?
Possibly related:
[Q] Randomly auto shutdown (battery problem)
http://forum.xda-developers.com/showthread.php?t=2195878
[Q] New phone battery jumping after JB
http://forum.xda-developers.com/showthread.php?t=2198772
MemendF Ranck
Looks like other people have a similar problem too.
Battery Fluctuation and Random Power off after JB
h t t p s:// forums.motorola.com / posts / cd3c7d3210
Jelly bean download issues
Hi, I have had exactly the same problem after downloading jelly bean. It even died when plugged in charging. As I had only had the phone for three weeks, I took it back to the shop, Phones 4 You, and they exchanged it for a new phone and told me not to download jelly bean until they let me know it's safe to do so. They said that it was a software problem. Prior to this the battery life was outstanding and I am very pleased with the phone. Phones 4 You gave me an excellent service.
Fixed!
For future readers ...
Someone on the motorola forums (see second reply on this thread) mentioned a possible solution which was to manually install the Jelly Bean version again. I decided to give this a try.
After some more research, I discovered that it should be possible to manually apply official Motorola (ie. OTA) updates using the stock bootloader (via the bootloader recovery feature). No unlocking, no root needed.
I gave this a try ... downloaded the software (keeping to the same version), placed it on an SD card, went to recovery and selected 'Updated from external card' (or something like that) and followed through ... and it has worked (Although this time I kept the phone connected to a usb cable throughout the upgrade). My battery readings are back to normal again. I didn't lose any data or apps as a result of this 'manual upgrade'.
And I am presumably still under warranty since I didn't root nor unlock the bootloader.
Other readers may consider trying this for themselves, however, I cannot guarantee that it will work for them. I can only say it worked for me.
Some references:
How to enter stock recovery in JB (razr i)
http://forum.xda-developers.com/showthread.php?p=38873652
(Apparently entering into stock recovery differs slightly between ICS and JB.)
The Unofficial Thread of Official OTA Updates
http://forum.xda-developers.com/showthread.php?t=2028814
I used the software package from the first post of this thread, labelled as 81.5.39001-91.2.29001.Retail.en.GB 4.0.4-4.1.2 (even though the filename is Blur_Version.81.5.39001.XT890.Retail.en.GB.zip).
I don't have the phone yet (supposed to get it tonight) but having read quite a bit it seems Moto suggests a factory reset after upgrading to JB in order to sort out battery drain etc. I think I saw it in the battery stats thread in RAZR i general.
I send my Razr I back to Germany (living in The Netherlands myself) yesterday! Had the same problem, only my battery get down to 0% all the time, so the phone shutsdown itself every 1 minute till 1 houre. (I'm from the topic: Auto shutdown (battery problem). I think i get my new one next week on wednesday. Dus the JB software manualy update works for more people?
mo976 said:
I don't have the phone yet (supposed to get it tonight) but having read quite a bit it seems Moto suggests a factory reset after upgrading to JB in order to sort out battery drain etc. I think I saw it in the battery stats thread in RAZR i general.
Click to expand...
Click to collapse
I think the problems described in this thread are relating to strange battery spikes in percentage and not a general drain of battery.
The problem is that everyone seems to be different. Some people report these spikes, some people are reporting high drains (which turning off google now or factory reset seem to fix) and some people (luckily me!) have had no issues at all - just an even faster phone
I did do a factory reset, though not immediately after the first JB upgrade. It didn't help.
I think describing this issue as battery drain or high battery usage is not quite correct. The battery is actually okay*, but the phone's indication of the battery capacity jumps all over the place (and sometimes causing automatic shutdown). I can see how it can be confused with battery drain though, especially if people only observe the reading going down (but didn't see the reading going up).
* At one point, I kept the phone screen on as an attempt to drain the battery. I got about 6 hours screen time (ignoring the intermittent battery low warnings) before I gave up.
Since I now have a phone with JB which is working, my guess is that this bug may not occur in all phones with JB. Instead, it seems to be triggered by something that happens during an upgrade.
OTA to JB on xt890 = battery problems
flashsam said:
I think the problems described in this thread are relating to strange battery spikes in percentage and not a general drain of battery.
The problem is that everyone seems to be different. Some people report these spikes, some people are reporting high drains (which turning off google now or factory reset seem to fix) and some people (luckily me!) have had no issues at all - just an even faster phone
Click to expand...
Click to collapse
i have the same problem. factory reset did not help me and i feel i made a mistake i have choosen this phone.i had motorola mobiles before even bought one to my wife.i know that motorola has a conservative atittude.i thought giving them a last chance now i know it was a mistake
Thanks bengtan.
I was having similar issues and a manual install of JB appears to have solved the issue.
Have you had any luck fixing your phone? I have the same problem since a few weeks ago. Bought a new battery and tried two calibration programs, but the issue persists.
Same here. I am on KK 4.4.2 and have the problem since yesterday. What to do?
Same here, my ROM is cm-11-20160524. After 3 years of usage I thought it's the battery and replaced it with a new one but the issue persists.
This is very odd, I'm here after my dad has the same issue and it looks like I'm the 4th poster to report the issue within 50 days after the thread hadn't any replies for over 3 years! Did any of you recent posters resolve the issue? I had a spare Razr-i and my dad took it to a phone repair shop where they swapped both batteries and the issue was still the same with the other battery, so it seems it's nothing to do with the battery itself for all the posters here so far.
Was there some recent update that spiralled all the phones into the erratic behaviour recently I wonder?
I'm trying to advise my dad what to do:
Try fix the issue on his current phone and keep using relatively old tech phone
Use my spare phone (same type) and keep using relatively old tech phone and try sell old XT890 for parts
Upgrade to brand new phone with latest tech and do him for a few years longer than the XT890 would.
Any feedback appreciated!
The issue flatened a bit now. After 2 weeks of brave usage the phone keeps the charge now normally with rare drops in between. So it's still not on an acceptable level but improved magically. I do not understand the physics of this behavior.
I'm having the same strange behaviour since yesterday!!
battery level drops when pluggin the charger,
after several minutes level is jumping to 100%.
whith unplugged charger, level in general inconsistent jumping up and down...!
could this be SW related? planned obsolescence?
edit: android 4.4.2. systemversion 990.43.74.XT890.Retail.en.EU
I have the same problem following an update to JB I don't even recall authorising
I'm now looking for a copy of the new firmware: 990.43.74.XT890.Retail.en.EU to try to resolve. If anyone knows where it can be found I'd be very grateful if you could point me in the right direction...
Same problem here.
I bought a new battery. No changes.
I than did a complete wipe, unlocked the bootloader and installed CyanogenMod 11 (this one http://forum.xda-developers.com/razr-i/development/rom-unofficial-cyanogenmod-11-t2966855). No changes.
I than completely drained the battery (made sure of it) and left it on the charger over night. Now I don't get those weird spikes, the battery just drains really fast (about an hour an the phone is powering off).
Maybe I try a different ROM, or go back to KitKat
I found this but I dunno how to use it ??
h t t p s : / / forum .xda-developers .com /showpost.php?p=69816145&postcount=39
android 4.4.2. systemversion 990.43.74.XT890.Retail.en.EU
Hi,
I'm experiencing this problem more than 1 month. I'm on CM10 with kowalski kernel. It seems my phone sometimes wrongly read battery status and drop battery level percentage from some value to 0 immidiatelly...and shut down occurs at the moment. I thought it could be caused by old battery, but it's not - I buy the new one and the problem still persist and it's VERY irritating...Any solution?
Thanks Jiri
Hello,
It happens also for me but only when I am around 15% and when somebody call me sometimes it fail down sometimes.
It seems that the deep sleep do not allow the system to read a correct battery value when screen came back and the system shutdown because of a too low voltage.
I did not found any solutions in several type of ROM.
Mike
This is a known problem..if i remember correctly tonyp and pengus will fix it in the neew 4.2.2
Sent from my LG-P990 using xda premium
But it's annoying as hell, for me, it starts when my batter is on 50% and low.... 5 - 10 times a day a have to turn on my phone...I cannot use alarm at all....
Andy HOT said:
This is a known problem..if i remember correctly tonyp and pengus will fix it in the neew 4.2.2
Sent from my LG-P990 using xda premium
Click to expand...
Click to collapse
Mmmhhhh I actually cant remembet them stating that it will be fixed. I remember tony mentioning that its a low priority rom bug. It might be fixed with 4.2.2 but i am not really sure. Regarding the issue I do experience it too but only once every few weeks.
Sent from my LG-P990 using xda app-developers app
I also have this shut down problem. A lot. Maybe 5 times a day and its also driving me nuts. Mine does not happen while phone is in charger - so its probably the "battery reporting wrong charge" problem. Im on new bootloader. I've seen it go from over 50% to 0% battery in an instant.
It might have happened before but much less frequently than now. I started noticing the problem a few weeks ago on Pengus CM10 rom with kowalski kernel (before reading about it). I reflashed the kernel a few times and upgraded the kernel once or twice during that period.
I switched to PA 2.6 - 10 without improvement (KK-116). No apps installed (except Antutu)
I even had the problem in TonyPs TWRP 2.4.3.0 when trying to backup my rom once. Phone shut down while running the backup. Plugged wall charger in while phone still being off and saw that i still had battery left - probably 30-50%. The LG charging graphics icon showed this (you know, the one that shows up if your phone is off and you plug in the charger).
I Tried the following using AIO v5 tool without luck:
1) Reintalled unlocked ICS bootloader
2) Reverting to Old bootloader / partition - then back to new bootloader. Then installed ROM.
I have also tried installing Django Manouche X 1.6.1 (KOB 0.7 kernel) and running Antutu a few times (right after first boot + reboot) with the same result: shutdown. No apps installed.
I can always reproduce the issue: run Antutu benchmark 1-5 times in a row manually on battery. Plugged in, this does not happen.
It happens with or without OC/UV.
I havent tested it extensively, so I cannot be sure, but it seems to me that the rom/kernel isnt the problem since it also happened (once) in TWRP. Could it be the bootloader? Granted this is only a guess, since i have NO knowledge of Android programming or inner workings. Or maybe this is what happens when the LG battery is dying? I got the phone just as it came out.
Edit: BB 30A
I guess i have the same problem but either worse or something totally different.
Regularly around 70%, my battery just drops to 0% and my phone shuts off. It can happen anytime for me and it usually happens just after about 10-15mn of using my phone.
This morning it shut off at more than 90% and then got stuck in a bootloop i presume because it says it doesn't have battery.
Update:
I tried reflashing 30A BB. Didnt help.
Tried Django Manouche X 1.6.1 with kernel without zRAM or ramhack mod. Didnt help.
I Also tried PA 2.6 - 11 on old bootloader, and the battery-jump shutdowns continued when running antutu.
Flashed (completely stock - no rooting etc) ICS 30A with 30A BB through AIO v5. Didnt help. No tweaks or apps (except Antutu) installed. On Antutu run number 5 the phone restarted (with bootloop). Had about 36% battery. Pulled battery, rebooted, phone shut down before booting ROM. Plugged in charger, booted into ROM, showed 100% battery for 10 seconds before showing 30% battery. Tried with quadrant and 30% battery: phone shut down on run 2. Pulled battery, rebooted. Messed around with camera and gallery for 5mins at 26%: phone shutdown.
Im totally lost ... if its not the battery (as indicated by the first post (OP)) i have no idea whats going on. Maybe some other piece of hardware inside the phone is to blame. A piece of hardware that is only called upon when on battery and not when on charger. Maybe a power regulator (or some such thing) is broken?
Next test: Stock GB with GB BB
Edit: Well, the GB ROM + GB BB didnt work either: Gueste2X GoodBye v2.0R + 20L BB rebooted at 75% battery running Antutu. It showed a pop up about low battery and shut down shortly after. For the first time the battery icon still showed 75% when it shut down though.. And this time it showed 21% (not the usual 0% battery) when rebooting to ROM.
I think Im throwing in the towel regarding the software.
My dad also has an o2x, so i will try and swap the batteries and test both phones. I will ofcourse run antutu several times on my dads phone before swapping the batteries..
Update 2:
So i tried my dads O2X battery in my O2X. I Ran Antutu quite a few times and my phone didnt shut down. So I'm pretty certain my battery is messed up which is the reason my phone shuts off "randomly" showing a sudden 0% battery.
Through a google search i found a guy stating that the battery often starts "bulging" when its messed up like mine. His test was to lay the battery flat on a hard even surface and spin the battery. If it keeps going for a couple of seconds it might be messed up. My battery is definitely "bulging" and spins for much longer than my dads. His spins for less than a second. Mine spins for maybe 2 seconds. Not very scientific, but i could definitely see a difference. And i can see the excessive bulging on my battery if i look at it from the side.
So Im ordering a new battery tonight - the originals dont cost much thankfully.
Hope my walls of text can help others in the same situation.
Last update (promise):
Got the new original battery today. Charged it to 100% and used my phone for various tasks until the battery hit 70%. (This was my old batterys absolutely certain "breaking point" when running Antutu benchmark. On my old battery Antutu would crash on first or second run every time when battery is at 70%.)
On the new battery i quit running Antutu after the 13th run in a row without a "battery low" shutdown. The battery was at 40% after the 13th run.
I lay the old and the new battery flat on my smooth metal mousepad and spun them around. The new battery spun for less than 1 second. The old battery spun for almost 4 seconds on one side - almost 3 seconds on the other side.
Two working batteries (my dads 2+ year old battery and my own brand new one) performing equally and at the same time differently to one defective battery. It lends some credence to "the guys" theory that battery defects might result in "bulging" of the battery.
Which means, your battery can be defective but not "bulge". If however, your battery is "bulging" something likely is or will be defective. Fantastic knowledge to posess, if true.
It might seem like a "well duh, thats obvious" revelation, but Ive held my old battery in my hands a lot the last 2 years (especially lately) and I did not notice the "bulging" at any time.
I have had my international unlocked M7 for almost 2½ years now. For the past 6 months or so I have had weird battery problems.
When on the lower half of the percentage, i.e. below 50%, sometimes it drops incredibly fast, and the phone just dies. At times it goes from 30% to nothing for instance. When I add the charger it lists the battery as 2-5% or something.
Nothing gets hot, and I have tried to use the saver functionality. I don't think there are any apps that cause this, I have tried to keep an eye on it.
I have also tried GSAM, but it didn't tell me anything new - I can install it again and post some logs, if that would be helpful.
What I have done:
* Recently I went to a shop and had the battery replaced, since I assumed this was the problem (battery getting old), but it didn't changed anything. There is, of course, a remote chance that the shop screwed up and didn't replace the battery and screwed me - I have no way of telling...
* I have also recently rooted/unlocked/wiped all caches and installed a ROM from here (Eragon), but that didn't change anything either...
My only conclusion is that this must be a hardware problem - am I correct in assuming that?
Any help/tips are welcome!
Thanks!