[Q] reboot many times after reaching 40% of battery life - Galaxy Tab Pro 12.2, 10.1, 8.4 Q&A, Help & Trouble

hi there, when my tablet batterycreaches 40% downwards, it will restart many times.. IDK why.. pls help me

haledue said:
hi there, when my tablet batterycreaches 40% downwards, it will restart many times.. IDK why.. pls help me
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I'd like to second this issue. I have had CM12 on it. Went back to CM11 due to the LP issues. My tablet ran fine forever. (I've owned it since December). I first had the problem when I had The Hobbit 2 Paused (screen off). I had over 40% when I last noticed it. I had it paused because I was at an Open Beta testing party for a friends game/app (puzzle game). He asked everyone for their android devices and he took my Tab and set it on the table and sideloaded the .apk to everyones device. He started passing peoples devices back to them and asked me why my tablet was in a bootloop. I hadn't had ANY problems like this AT ALL! I've even ran my battery down to 5% before. The tablet continued to not boot after I plugged the tablet in. It claimed I was at 5% after being plugged into a 1amp charger for 35mins (he sideloaded his APK to my HTC One M8) and I played his game for 35-45 mins. Checked the battery and it was still at 5%. I unplugged it when I left to go home and I had to plug it in for a while in a 2amp charger before it would stop bootlooping.
I have since flashed CM12, back to CM11, SlimKat roms. I have done a factory reset, cleared my internal memory, I haven't tried changing the microSDHC card. I will try that at some point. I may want to point out that I DID format my 64GB card as EXT4 (but android wouldn't recognize it) then I reflashed it with exFAT (then reformatted it using Android before replacing the files). This WAS within 24 hours of when I started having issues.
Did you do anything similar with your Memory Card?
Does anyone else have this problem, and/or solution?

reply
Well I own this tab since july. Last december, aftee christmas party I recieve a mini speaker with 3.5mm jack.. When I got home I excitedly use the speaker and put the 3.5mm jack into my tab. After using it (I think 15 mins) it started bootlooping until my battery percent reaches 10%. But before I used the speaker, my battery life is 50%. Then until this march its still bootlooping. It only stops when I charge it.

re
Well I own this tab since july. Last december, aftee christmas party I recieve a mini speaker with 3.5mm jack.. When I got home I excitedly use the speaker and put the 3.5mm jack into my tab. After using it (I think 15 mins) it started bootlooping until my battery percent reaches 10%. But before I used the speaker, my battery life is 50%. Then until this march its still bootlooping. It only stops when I charge it.

haledue said:
Well I own this tab since july. Last december, aftee christmas party I recieve a mini speaker with 3.5mm jack.. When I got home I excitedly use the speaker and put the 3.5mm jack into my tab. After using it (I think 15 mins) it started bootlooping until my battery percent reaches 10%. But before I used the speaker, my battery life is 50%. Then until this march its still bootlooping. It only stops when I charge it.
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No reply....usually there are plenty of people who want to help.
Reasonable Scenarios.
1. This issue has already been answered (and they don't want to link us, even though I scrolled through 5 pages of topics and only found this one)
2. No one knows
3. They feel sorry for us because we have defects.

Replace Battery !

dansafe said:
Replace Battery !
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Basically Warranty Replacement. I've thought of flashing a stock rom and see if it reboots with that

dansafe said:
Replace Battery !
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Just for the record, I did something that seems to have fixed my issue.
I discharged my battery "Completely" (till it shut down). Then I powered it back on it was at 40%. I discharged it to power off. Turned it back on and it was at 30%. Discharged, powered on 14%. Discharged powered on at 7%. then again and it was 4%. Turned it back on after discharge and it would power right back off without booting completely. I did this 3 times to be sure. Then I plugged it into a 2amp and left it plugged in for about 5-6 hours then turned it on (100%). I have since used it to 14% without it rebooting randomly. I will keep this updated if I have anymore random reboots.

Related

Galaxy Nexus sporadically not charging, fast battery drain

My wife and I each purchased a Galaxy Nexus from the Google Play store last July. Recently, my wife's phone started only charging sporadically when connected to a charger. The symptoms don't line up exactly with any other situation I've found described online, so please bear with me while I type out a full report.
I tried removing the battery and using a precision screwdriver to "nudge" the micro USB port "tongue" toward the screen. I thought it had fixed the problem as the phone started charging immediately after I plugged it back in, but when I checked it ~30 minutes later, it had stopped charging.
I tried taking the battery out of my GNex and putting it in my wife's phone; I put my wife's battery in my phone. That seemed to fix the problem, though, again, it was only temporary. I was able to get both batteries to charge to ~80%, then swapped them back. Again, my wife's phone charged the battery, but only for a short while. I swapped batteries twice more to rule out a bad battery; the same symptoms persisted, so I can confirm the battery is not the culprit.
I tried cleaning the micro USB port by removing the battery and using a needle and 91% isopropyl alcohol to clear any dirt or dust from the contacts. I waited for the alcohol to evaporate, reinstalled the battery, and plugged the phone back in to the charger. Same result as before: Phone charged for a little while, but stopped charging before reaching full charge.
We tried 4 different USB chargers: The charger that came with my wife's GNex, the charger that came with my GNex, the charger that came with the Droid RAZR MAXX that I use for work, and the charger that came with my wife's Verizon Jetpack. Same results on all chargers.
Now for some oddities:
The "charge for a while, but stops charging after a while" persists whether the phone is on or off. I turned off my wife's phone at bedtime one night, plugged it into the charger, confirmed that the charging icons appeared (a lightning bolt, then an animated charge meter). When I woke up, the phone was still turned off but only had 13% charge.
Whenever I plug the phone in to my Windows 7 laptop, I'm able to access the file system every time (100% of the 4-5 times I tried). The Battery settings page will say "Not Charging," but I can view and modify files using Windows Explorer without issue.
And now, for a note from my wife:
Unless my memory fails me, I think this was one morning when the charger felt warm on the adapter where it plugs in. Pretty sure this was the day I took the charger with me to work. I had the phone turned off and plugged it in and later turned it on to check the charge and it had been charging. I left it on and it continued to charge. I had to unplug it on three separate occasions and I plugged it back in and it did ultimately charge fully. But when unplugged, the battery did drain quickly, and I had not previously had a battery life issue.
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The phone will sometimes get warm--not hot, but warm--around the area under the camera when charging. (I'm guessing it's near where the battery makes contact with the phone.) The charger itself will also get warm sometimes.
Sometimes, even though the Battery section of Settings will say "Not charging," the battery would charge very, very slowly (as in, an increase of 1% charge over the course of 15-45 minutes). When plugged in, the battery would sometimes hold charge (e.g. stays level at ~45%) but not charge or discharge.
When I called Samsung support, I waited less than a minute to talk with a person, explained the situation and symptoms, and was told, yes, the phone is out of warranty (by two months, which I admit is aggravating), but I could send it in for repairs for a total charge of $70.63. That includes shipping both ways. Total repair time would be 5-7 business days. Add 2 days for shipping each way and my wife would be without a phone for 9-11 business days if we were to send it in. It's good to know that the repair are (in my opinion) reasonable because I was hoping to hold on to my phone for at least 2 years before upgrading (and I'd prefer to wait at least 3 years).
I've since got an old iPhone 3GS working on Straight Talk (which was its own ordeal) so my wife has something she can use if and when we send in the phone for repairs. (Side note: My wife really misses Swype.) She plans on backing up her data tonight so I can wipe and reload her GNex and attempt to rule out software and OS as the root cause.
In advance of wiping and reloading my wife's GNex, I had a few questions:
Do you agree with my hunch that the root cause of this issue is hardware, not software? I'd love to be wrong, but all evidence points to a hardware fault.
What ROM do you all recommend for thorough testing in this situation should I encounter the same problems with a clean Android 4.3 stock install?
Are there any other possible fixes you all could recommend before I drop 70 bucks on repairs and my phone has to tolerate the iOS on-screen keyboard for 2 more weeks?
I've had this problem once, I even changed ROMs and it never went away. I changed my charger and it still did the same thing. I don't know what fixed it, but it just started working normally again.
What caused was that I was using it and my device got really hot because I was downloading things, browsing on the internet and playing games on it all while I was charging it. My phone got really hot and a little "CLICK" sounded off and my phone just shut off. It wouldn't turn on until I removed the battery. Cooled it and charged the battery overnight. Although my phone was working now my charger was crazy.
Sent from my Galaxy Nexus using Tapatalk 4

[Q] Z1c issue

Hello everyone. newbie here.
My sony Z1c seems to have developed a bug/issue. 2 days ago my phone was on charge, green led at the top was on and my battery showed at 100%. I unplugged the device jumped into bed, set my alarms as usual. I then woke up 2 hours later then i should of to find my z1c was dead. Nothing was running in the background etc so instantly knew something was up. Tried charging my phone at work via usb>pc and it kept saying my phone is losing charge quicker then its charging (never seen this message before) . I could turn the phone on but the battery level stayed at 2%, as soon as it was unplugged from the pc it would instantly die.
When i got home i done a few "reset" searches and come across the hold volume up and power at the same time until phone vibrates method. This now seems to allow my phone to charge normally again and the battery goes past 2%. However again today my phone went dead overnight. So the issue is still there, im just able to charge the device again.
I dont appear to have anything running in the background
havent done any firmware,software,app updates in the last couple of days (again that im aware off, unless they forced any)
also noticed the phone gets extremely hot at periods for unknown reasons?
Anyone here able to help or advice? is this a faulty battery, software,firmware issue etc? any fixes
d5503
running 4.4.4
14.4.a.0.108
Thanks in advance
Have you tried a different charger? Charge it using wall charger with supplied cable. I don't think firmware is draining your battery. Possible that u r caught up with a faulty battery if u don't have any issues with charger.
My advice "Head to Sony Service Centre asap".
Have you 'ever' installed any custom ROM on this phone then reflashed/restored something later after accquired? It could be the underlying system's battery state is different than the current running OS' one. Try calibrating the battery a couple of times to see if that make any difference.
Hello. Thank you for the replies.
The phone charges correctly via mains and usb(laptop,ps4 etc) since i done that power+volume up reset. Pretty sure my leads and plug are fine. i could try different usb leads though. the charge level is certainly showing me 100% charge
I have never used any ROM's or Roots. i dont know fully what they are. I used to have a jailbroken iphone so it sounds similar. Id be prepared to do down any of them routes if it fixes my phone
Everything updated has been official releases. I dont appear to of updated anything recently though so i cant put it down to a system update or new app update. - something might have glitched somewhere i dunno
Charged the phone during my first post and again it says its gone to 100% after a couple of hours. unplugged the charger. restarted the phone and checked nothing that hasnt been on for the last 3 months hasnt turnt on and all seems fine there. So just left it in standby
checked it 10minutes later to see charge levels. am down to 87%
using gsm battery app it says 68.9% app usage, when i click that
android system 53%
kernel (andoid os) 19.5%
then i have a list of other stuff running all be 2%
them 2 shouldnt be that high should they?
then when i go default settings>power> batt usage
android system 37%
googleplay service 21% (doesnt appear to be updating/syncing anything. should all be off. never used syncing)
screen 14%
android OS 5%
cell standby 5%
the rest of the list are 2's and 1's
phone was cool when charging, since rebooting the device and unplugging it, its now getting hot??? would of expected it to be the other way around!!!
Might want to give it a go of this:
userguide.sonymobile.com/referrer.php?region=global-en&product=xperia-z1-compact#!Resetting-your-device dot html
Sorry, newbie can't post URL yet:crying:
Hi again, Jcw i done a full factory result and everything now appears to be fine now. Phone has been on for 3hours standby and on 98% battery, It would have been dead by now and extremely hot at the back. Now running alot cooler. Thanks for the advice.
Have no idea what happened. Something was seriously draining the battery though. Glad its fixed. Thanks again

New Moto 360 Only Charges When Powered Off

Weird defect. Anyone else have this problem?
Edit: as of now it won't charge at all
Edit 2: After a lot of fiddling around, it decided to charge. Working great except for a single dead pixel Got to exchange it on the 9th or whenever they get their shipment in.
Mine charges while powered on.
holabola said:
Weird defect. Anyone else have this problem?
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Mine charges while on and off. What I did notice, is when I was initially setting it up it went up to 32% and while on charger it started loosing charge. I have no idea why this happened but assumed a service was running in the background. Ever since the initial setup, on or not the watch gains charge. Seemed to take about 2 hrs from near empty to full while the display was on showing time.
As of now it wont charge at all. This is driving me insane. I got it to 9% somehow but I have no idea, and Best Buy won't have any to replace it with.
holabola said:
As of now it wont charge at all. This is driving me insane. I got it to 9% somehow but I have no idea, and Best Buy won't have any to replace it with.
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Do you have the cable that came with it plugged into the cradle? I started using my cell cable into the cradle and my battery percentage was going down instead of up.
My local Best Buy said of the two they had today the first sold wouldn't charge. I saw another post on reddit claiming theirs wouldn't turn on, could also be related to a charging issue.
pfroo40 said:
My local Best Buy said of the two they had today the first sold wouldn't charge. I saw another post on reddit claiming theirs wouldn't turn on, could also be related to a charging issue.
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This is a ****ing pathetic launch. There is literally no stock anywhere and of the few that are sold a handful have defects. This is simply disgraceful.
Here's what happend with mine.
First time I powered it on it said to download the wear app..so I did that. Then, it proceeded to connect and pair with my phone. It started to download something, (wear update?) and at about the half way point it said charge your device, shutting down. So it shut down. I put it in the cradle and it initially had 23% charge. 5 minutes later it had 18%. Not knowing what was going on, I turned it back on and was met by a spinner that said just a minute... for about 15 minutes. So I turned it back off.
After another reboot I went into the menu and selected reset device. After this it began to charge.. all the way to 100%. I turned it back on and it re-downloaded what it had to and applied the update successfully after about 3 or 4 restarts and 10 minutes. Now all seems well.
Edit.. By well I mean working. It's been merely 3 hours and with almost no use I'm down 40%. FML
yeah, i think people in their rush to use it haven't charged them fully. i plan to charge mine fully before using it.
gammite said:
yeah, i think people in their rush to use it haven't charged them fully. i plan to charge mine fully before using it.
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This was definitely my issue. The problem is the vagueness of the instructions. It basically says turn it on, download the app.. Show off (until it dies).
I had the same problem with it saying charge your battery. I put it on the charger and left. Came back, it installed an update, rebooted a couple times and then was good. I've been playing with it heavy for a few hours and it's at 69%.
Sent from my LG-D801 using Tapatalk
Phlip00ws6 said:
Here's what happend with mine.
First time I powered it on it said to download the wear app..so I did that. Then, it proceeded to connect and pair with my phone. It started to download something, (wear update?) and at about the half way point it said charge your device, shutting down. So it shut down. I put it in the cradle and it initially had 23% charge. 5 minutes later it had 18%. Not knowing what was going on, I turned it back on and was met by a spinner that said just a minute... for about 15 minutes. So I turned it back off.
After another reboot I went into the menu and selected reset device. After this it began to charge.. all the way to 100%. I turned it back on and it re-downloaded what it had to and applied the update successfully after about 3 or 4 restarts and 10 minutes. Now all seems well.
Edit.. By well I mean working. It's been merely 3 hours and with almost no use I'm down 40%. FML
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Click to collapse
So, I got mine to charge and everything. So far I LOVE IT. I made a post on working apps that I've tested over in the Themes and Apps subforum. Basically, I put it on the Qi Charger I have for my Nexus 5 DIRECTLY in the center and it ended up charging then stopping again. Then, this time, I put it on the charger provided, and it worked to 100%... Very strange but I plan on exchanging it anyway as there is a single dead pixel I can see.
Same issue... Got the watch. Turned it on in the car and it started the update without promoting me to do it and now it is in the same dead cycle I've seen others post about. it will sit on the charger for hours and only be a few percent and when u power it on it tries to update and goes from 10% to 0 in less than a min or two. I just did another reset and put it on the cradle. The only feedback I have that something is happening is the watch is pretty hot. My gear live and Galaxy Gear 1 had an icon that showed charging status when the phone was off. Also they charged quickly, we're always cold and had great battery life. I can't imagine Moto not testing these devices long enough to figure that it should not try to apply an update until the battery was at a certain level or plugged in. I wish when these reviewers do features on the engineers of these devices, like have been recently done instead of ass kissing these guys would at least do some calls g out on their process. It'll like when Apple came out with the IPhone 4 and showed all these unbelievable signal testing facilities and they couldn't figure out when you held the phone normally on your left hand that the signal would drop to zero. It literally took me 2 minutes to figure out that one...
I highly advise you sink a hour charge into the watch first at least. most of these new batteries are like a lithium ion / lipo hybrid. they have a low voltage cutoff so the battery cells don't get damaged and go kaboom. Noone knows how long these sat or what charge was in them, how cold and so on during shipping. I would say people are running them low enough moto is triggering low volt cutoff.the update may have even changed the voltage values they accept as tolerable. and when you power it up this tricks it into a fail mode. ost smart chargers see the low volt and refuse the to charge for risk of a damaged cell. this sounds a lot like moto 360's issues.
When mine hit 80% on the charge, the update downloaded, watch rebooted, and the charge message started appearing.

[Q] Charging/battery and bootlooping issues on my 8.4

I've had my TAB PRO 8.4 since about half a year now, and it's been a really good experience. But then suddenly one day I was just using it for my daily tasks and it suddenly restarted and then it did it again and again, it got stuck in a bootloop. Then it drained the battery and stopped, when I came back home I tried charging it normally, but noticed it wasn't charging past a certain percentage, and since I was also playing with it while it was plugged in then I just thought it was just because of that.
After that, I left it plugged in all night as I've always done but when I woke up, it was STILL STUCK at that percentage (around 25%). It was like that for a couple days with the battery, I restarted the device (longpressing the power/lock key), when I it came back ON then suddenly the battery percentage jumped to around 51% and I thought it was solved but it wasn't, then it didn't want to go past that percentage, and the worst came when I unplugged the device and the battery drained incredibly quickly, like in a matter of seconds it was down more than 10% of the battery.
It's been like this since about a week now, the charging process gets stuck at some random percentage, and when I use it while unplugged then the battery just drains in such a crazy and quick manner. And also, the bootloops come back every once in a while and I have to go into safe mode or odin mode and then restart so that it stops, but the battery/charging issue never stops, it just behaves randomly crazy. I really don't know if it's software or hardware, whether I should try rooting or something like that, or whether I should try to send it to Samsung under the 1year warranty (it's just that I bought it in USA, and I dont live there and it would be just a great pain in the ass in time and money) or just try to live with it like this.
What do yo guys think I should about this?
diegorosemary said:
I've had my TAB PRO 8.4 since about half a year now, and it's been a really good experience. But then suddenly one day I was just using it for my daily tasks and it suddenly restarted and then it did it again and again, it got stuck in a bootloop. Then it drained the battery and stopped, when I came back home I tried charging it normally, but noticed it wasn't charging past a certain percentage, and since I was also playing with it while it was plugged in then I just thought it was just because of that.
After that, I left it plugged in all night as I've always done but when I woke up, it was STILL STUCK at that percentage (around 25%). It was like that for a couple days with the battery, I restarted the device (longpressing the power/lock key), when I it came back ON then suddenly the battery percentage jumped to around 51% and I thought it was solved but it wasn't, then it didn't want to go past that percentage, and the worst came when I unplugged the device and the battery drained incredibly quickly, like in a matter of seconds it was down more than 10% of the battery.
It's been like this since about a week now, the charging process gets stuck at some random percentage, and when I use it while unplugged then the battery just drains in such a crazy and quick manner. And also, the bootloops come back every once in a while and I have to go into safe mode or odin mode and then restart so that it stops, but the battery/charging issue never stops, it just behaves randomly crazy. I really don't know if it's software or hardware, whether I should try rooting or something like that, or whether I should try to send it to Samsung under the 1year warranty (it's just that I bought it in USA, and I dont live there and it would be just a great pain in the ass in time and money) or just try to live with it like this.
What do yo guys think I should about this?
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Click to collapse
Did you ever resolve this? I'm having similar charging issues.
Kinda
martinroman said:
Did you ever resolve this? I'm having similar charging issues.
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Click to collapse
Well, I kinda resolved it, at least the charging one. I had to drain all the battery down to 0% until it shut itself down, and then I turn it back on and for some crazy reason there was about 50% left but it quickly got drained and went off on 0%, then I turned it back on once more and it was 0% but still it lasted a couple minutes on and again it went off, did that process so many times until it couldn't go back on anymore. At that point, I put it on the charger and it got well charged to 100% at last, and the battery now is working kinda normal, even though the random reboot loops come back every once in a while, specially when on low battery, but that's about it.
If you ever find any definite solution for your charging issue, please contact me.

[HELP] Phone is non-responsive all of a sudden. Won't draw charge either.

I posted this in the noob thread and I'm not sure how posting a new thread will help but hopefully someone may be able to sort me out.
I was using my phone in the car about an hour ago, listening to music (3.5mm jack). At this point my battery was at 3%. I opened Snapchat and the camera was being weird; it had purple noise(?) lines all over the screen every time I pressed the screen to focus it which tells me the camera is stuffed for whatever reason.
Anyway, the phone died on me. I assume the battery died as it was already low. However, it then starts to bootloop about 4-5 times and only manages to reach the encryption screen once, at which point it just switches off. Again, I thought the battery died! So I walk in to my flat, plug the charger in and expect it to boot but nothing happens. At this moment, there is no LED light on the front to indicate charge despite having been on charge for over half an hour, there is no vibration or any form of life from the phone. It just seems to have flat out died on me.
Now I know people will say I dropped it or its water damage so right off the bat, it is neither of those. It was dropped around 3 months ago, once, on carpet, from about 1.5ft if that. Never seen liquid and never been pulled out in the rain or anything like that. Last night it charged fine and today it worked fine too. Now it's dead!
Is there anything I can do/try? The USB cable/charger are fine, I tested them with a volt meter. Other things I have done include trying to boot the phone in any way possible through a number of button combinations, with and without SIM/SD card and even tried to plug the cable into my laptop. It's simply dead. Finally, if this helps: the phone is stock apart from an unlocked bootloader. It is rooted and has xposed installed with 3-4 mods, none of which do a lot (Snappreffs, xnotifications, dpi manager etc). It is running old firmware (like from last May when I bought it. Just never got around to updating I guess!) but this has never caused a problem.
Thanks in advance for any help.
Edit: Phone now responsive after 45 mins+ of being plugged in. Charging and working fine. Weird af..Mods feel free to delete this thread.

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