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hey everyone my sister has a milestone and she is having trouble with the phone battery. she says that she fully changes the phone and then at any point, the phone shows the sign that the battery is discharged and then reboots... then the battery shows the charge again, I tried moving from stock to cyanogen which took the problem away for some days but today it happened again. what can it be help!
hmm. i dunno. anyone?
the weird thing is that she just got it back from warranty... the screen was not working
Sounds like a battery problem. I once had my phone show 1% battery-level for like 7 hours (!) before it shut down. Some other time it would show 100% even though it just had been charged for minutes (starting at 5%). I fixed both issues by recalibrating the battery (search the forum, there's lots of info, most OR even have a script for that). I also leave the phone connected to the charger a couple of hours longer even after it says it's fully charged.
But if the phone actually reboots even though the battery has been fully charged, it really sounds like a hardware problem.
try a new battery
Before buying new batteries, just try calibration.
For me, the mentioned case of shutting down with a so-called empty battery was happening only with a stock 2.1.
Since then this issue never occurred again. So a faulty battery is not necessarily the first answer.
Hi,
My battery life/indicator has been behaving very strangely since yesterday, so I'm wondering if the battery is dying. I know about battery calibration, and attempting it hasn't solved anything. I haven't flashed any firmware recently.
When I plug in the charger while on, it almost immediately tells me it's 100% charged, but the number displayed will still be something low, like 50ish. When I unplug it, the number stays. It drops extremely quickly, to around 1-2%, then 0% and turns itself off. After turning it on again, it may rise to 10%, but drop again to 0% shortly thereafter. After a couple of times of turning it back on, it will refuse to turn on. Charging only seems to work when phone is off, but even then the charge won't last much more than a couple of hours of idling - no calls, no web, nothing.
I've tried charging to full while phone is off (drained), and removing battery stats via cwm before booting up. Doesn't help.
Is my battery faulty? It's a very sudden problem, and my battery has been lasting me for days before this happened
So, I got a new battery. The problem persists. I've tried a factory reset/wiping battery stats, but it's still that way. Could this be a hardware problem somehow?
Any advice is greatly appreciated!!
Which fimware are you on? In your case I'd go back to a stock firmware from samfirmware.com and test once again. If the problem persits, you likely have a hardware issue and I'd have it swapped for a new phone whilst within warranty.
BTW: http://forum.xda-developers.com/showthread.php?p=21612299
I'm using tweaky rom, JVS. I'm not too sure what the local firmware is (Singapore), the one I had before I switched to custom was 2.1, and I don't feel too safe flashing bootloaders when the phone is prone to turning off...
nwsk said:
[…] I don't feel too safe flashing bootloaders when the phone is prone to turning off...
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yeah, you are absolutely right. Have you tried betterbatterystats? ( http://forum.xda-developers.com/showthread.php?t=1179809 ) It will show you wakelocks when your phone should be idling.
Did it help ?
Mate, out of curiosity I was wondering if your issue got resolved.
Also, you should check what is draining off your battery.
I tried reading elsewhere and found "Battery Monitor Widget" could be useful for you to identify this.
Nope, still same problem. It's not a wakelock issue, because the battery dies /so/ fast. I can literally charge it to 100%, unplug the charger, and in 30 seconds it says 0% and turns itself off. The phone itself isn't running hot or anything, and seems to be just idling. [Edit: To clarify, it also charges to 100% in about 10 minutes or so. I'm guessing that for some reason the phone thinks the battery is 'full' and stops charging, leading to the quick drop. I've no idea what could cause this though]
I'm hoping that maybe it's a software issue now since the new battery isn't working either (the battery is probably a fake since i got it for cheap, but even then it should last at least a few hours before draining), and that the phone is confused with battery voltage levels or something when I put the new one in.
Anyway, I flashed JVU stock, didn't even root, and will be charging the new battery overnight while phone is off. It says 100%, but gonna leave it on charger anyway. Hopefully if I wake up tomorrow it'll be working :/
If that doesn't work, will be flashing DXJV9 (My original firmware was dxj4), and hope that it's the official one here. Then bring it to a service center and act dumb and hope they can fix it i guess...
Service center replaced motherboard. There goes a hundred bucks :/
Ok, so I have had no issues at all since buying this phone at launch, and this randomly happened yesterday.
I was on my phone and checked the battery info as I do a few times a day, just to see what's using my battery the most, SoT, etc. I was at 87%, which was about right as it has been off the charger a few hours with some light use. A few hours later I noticed my actual battery icon was exactly the same, no drainage at all. I viewed my battery info, and the line was flat for a few hours and still said 87%, which is very inaccurate as I've been using it during those few hours. If I had to guess, I was realistically around 60-70%. Then, while looking at my battery info, it said 'battery critically low' and shut off. I plugged in the charger and the animation when the phone is off said 0%. I left it plugged in for like an hour, and turned it on and it still said 0%. I unplugged the charger and it immediately died. I was on pop rocks ROM when this happened. I then plugged it back in, because the phone would function as normal as long as the charger was plugged in. I booted into recovery and restored an old stock backup, even after that I'm having the same issue. I downloaded a stock ROM from here, wiped everything like normal, same issue. Here's the frustrating part -- I chalked it up to this battery being bad. But I have two batteries, and the other one I hardly ever use, but I've used it before and it was fine and normal. I put that battery in, I'm having the same stupid issue! I don't understand, no matter what ROM or batter I use, this is happening. This is so frustrating, I don't know what to do or why this is happening. The phone will not charge at all. Please, anyone I would greatly appreciate help. I searched for issues like this on Google and here but it's usually chalked up to a bad battery, but I know that's not the case here. I couldn't find the option in TWRP, so I downloaded 'battery calibrator' app and wiped my battery stats, still didn't help. Below is a link to picture of what it looks like when I charge it, it just stays like this. I've done it with fast charging on, off, and with the phone completely off, same result.
http://imgur.com/6375t5i [1]
Edit- One thing that was weird that also happened, was after I restored stock and then rebooted, I unplugged the charger and during the whole 'android is upgrading' thing where it shows the number of apps and such, the charger was unplugged and the phone stayed on for that entire duration. Then once it finished the upgrading thing, it immediately died. That is incredibly strange. Also someone mentioned maybe it's the charger plug in area not working properly, but that doesn't explain a battery going from ~70% to 0 instantly, and the phone not recognizing a charged battery and showing 0% even unplugged.
Also, in addition to everything above, even though I'm certain it's not a battery issue, I bought another official Samsung battery just because I really don't want an 800 dollar paper weight, and I know the battery was somewhat charged when I got it, and I put it in and have the exact same issue. I also just flashed stock firmware via Odin, same issue. I was able to do all of that with my USB plugged in -- but as soon as I unplugged it the phone turned off. This is so frustrating, I can't explain how much I would appreciate help, and maybe even send some money via Paypal for an answer to a fix.
Does anyone have any idea? Please, any suggestions would be greatly appreciated. I have heard maybe it's the charging port on another site, but that would only explain it not charging, not the sudden and instant drainage of two batteries that were both over 60%. I would really appreciate any suggestions.
It could just be something wrong with the phone itself. Bring it to a tmobile store.
how to properly recalibrate OnePlus 3t battery to avoid phone switching off at 20-30℅?
sharath_babu said:
how to properly recalibrate OnePlus 3t battery to avoid phone switching off at 20-30℅?
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Your phone starts to shut off at 20-30%?
yep
sounds like a defective battery.
I've gone from 100-0 a few times and it's never shut down before 0.
Try this after wiping cache only in recovery mode:
After phone turns off, try to turn it on and see if red writing appears, telling you that your phone doesn't have enough battery. After that, charge your phone up to 100% and leave it at that level still connected to the charger, for 10 minutes. Then use up the battery normally. Repeat until phone shuts off at 0%.
This might be a little late for your question, but I just want to share my experience here.
Recently, my phone kept turning itself off at a little below 30%. If I tried to turn it on immediately, it showed the red low battery alert. If I charged it for a few minutes and turned it on, the battery would show 30%+. That proved it had not suddenly dropped to zero and turned itself off, as I understood a defective battery would.
I checked the Net, and it seemed that lots of people have the same problem as mine. On top of the recommendations were to replace the battery and a factory reset.
With the info I gathered, I decided to try battery calibration, and installed this app (https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=en).
I restarted the phone three times before running the app (idea from an OP discussion). As instructed by the developer, I let the phone continue charging even when capacity reached 100% (orange container on top). In my first try, I only waited for the orange container below to fill to the max, then started calibration (even when the pop-up message was telling me it's still early). That was a mistake. After that, the phone started dying at a little below 40%. In my next try, I let the charging continue even when the orange container at the bottom showed full, until the app notified me it was ready for calibration. I calibrated, and my phone's battery is fine again.
Hello, lately I've been having some battery drainage issues with my Huawei Ascend P7.
For some reason it drains really quickly (sometimes even when the screen is turned off). Sometimes my battery jumps from 40%+ to 15% and when I plug in the charger, it jumps back to 30%+ really fast.
My phone is rooted, I'm using Doze and Greenify to save some of the battery when the screen is turned off and I also have "Screen power saving" option turned on.
I have taken some screenshots of the battery usage and one of my phone's specifications.
Does someone know what might be wrong with my phone or could there be something wrong with the battery all of a sudden?
Did you try to reinstall Android new?
Or at first a factory reset?
RangerP7 said:
Did you try to reinstall Android new?
Or at first a factory reset?
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I flashed B852 package's recovery and boot. Then rebooted to recovery mode, wiped data and cache, then rebooted to install mode and installed B852 ROM (dload/UPDATE.APP).
The phone turns on fine, but the battery percentage just drops so quickly and once it even shut off when it was at 60%. When I tried to boot it back up it said it was outta battery.
And one time when my phone turned off and wouldn't turn back on, I plugged in the charger and it told me the phone still had 32% battery. I turned on the phone, unplugged the charger and it shut off in a minute or two. When I plugged the charger back in, it still told me I had 30%+ battery left.
I think the problems began when I flashed https://forum.xda-developers.com/as.../kernel-huawei-ascend-p6s-p7-k-tuned-t3355223 kernel. But I installed a clean B852 ROM and the problem still persists.
Thats really strange, but this kernel is not the problem.
I also have a P7-L10 B852 and using this kernel without any problem...
But right after installing this kernel I also had some strange problems...
Sometime my phone rebooted it self or if it was locked and I pressed the power button to wake it up, it just stayed black and it got really hot...
I don't know what py phone did at this moment because if you are looking at the battery info in settings, it says my phone just was turned off and even lost battery but it wasn't really off...
My solution was a clean install (erasing and flashing every single image and after that 3-button-method)
After that boot up your phone
Now shut it downs install the kernel again
Boot up
Shut downs
(Maybe flash original boot.img
Boot up
Shut down)
Install kernel again
Boot up
I'm using this kernel for more then a half year now and I don't face any problems anymore...
I think the battery itself was the problem. I removed the back cover, removed the battery and cleaned the connector pins with alcohol. When I turned the phone back on about 30 minutes later, under "Power saving" smart power plan option shows me the phone will last for 11 h 30 min at 83% (WiFi turned on), when it used to be like 2-4 hours at 90%. I'll keep monitoring for a while to see if the problem is truly gone.
Thanks for your help.
//edit1: Never mind, I tried playing with the CPU voltages and it froze, so I turned it off. Turned it back on and the problem was back. It jumped down from 80% to 14% and in a minute or two, the battery died. When I booted it into recovery, TWRP says I still have 34% left. So I rebooted into system, it showed me I did have 34% left, but it turned off. Going to try your advice now.
//edit2: Got it to work properly again. Hopefully I won't touch something that will mess it up again.
Maybe your battery itself is the problem but to proof that you will need a second P7 to change batteries of them...
But such extrem battery-problems I have never faced...
You could send it to Huawei support, maybe they will say you if your battery is damaged...
So you could buy a new one and change it
Have you tried calibrating your battery?
I don't think it's a calibration problem
But if you want you could try it...
Charge your phone to 100%
Now delete the batterystats.bin at /data/system
Reboot your phone
Use your phone normally and let it discharge right before it's shutting down it self (3% I think)
Now charge it again to 100%
While charging your phone you should not touch it or unplug the charger
Last night I went to sleep with the battery being at 90%+, woke up to my phone being dead (the alarm didn't go off).
Tried turning it on, it showed me I had 50%+ battery, but it turned off shortly after. I plugged the charger in, and it said I have 58%.
And yes, I have tried calibrating my battery. But I can try doing it again when I get back home from work tonight.
//edit: Battery calibration didn't help. I'll just have to wait until the new battery arrives. Or should I try locking the bootloader?
Why you want locking your bootloader?
Do you want to send it to the support
If you already bought a new battery, wait for it and put it in
Seems that the battery itself was the issue after all. After putting in the new battery, everything seems to be back to normal.