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Hello, I've just recently revisited my old android and discovered it rebooting randomly. A further look into this more into the hardware level, would need some statistics from users. I've installed Current Widget, and I've noticed the resets happen when my battery is quite low (20% (3.6v)). So i'm wondering if the problem is with either a bad battery (non linear voltage drops), or more into the battery circuitry myself. I've included the battery voltage I had at the time of the occurrence, because I'm in the middle of a battery calibration, but i do know that it still had plenty of 'juice' left in it because i used it for anther 20 minutes before plugging it in after the random reboot happened. It has done this in the past but this is the first time I've decided to log the reboot.
If anyone suffers from this (not the reboot loop), if you could, could you check your battery voltage level and possible mA amount before and after the reboots happen. (just mark the time down and refer to the logs later. Thanks!
It sounds like a battery issue to me. A new battery is £9 or around $15 max
Did I help you? Hit THANKS!
Galaxy S3 (BEAST, stock)
Desire HD (Retired, REVOlution)
Galaxy Note 10.1 (Big Bad Wolf, stock)
Dark-Show said:
Hello, I've just recently revisited my old android and discovered it rebooting randomly. A further look into this more into the hardware level, would need some statistics from users. I've installed Current Widget, and I've noticed the resets happen when my battery is quite low (20% (3.6v)). So i'm wondering if the problem is with either a bad battery (non linear voltage drops), or more into the battery circuitry myself. I've included the battery voltage I had at the time of the occurrence, because I'm in the middle of a battery calibration, but i do know that it still had plenty of 'juice' left in it because i used it for anther 20 minutes before plugging it in after the random reboot happened. It has done this in the past but this is the first time I've decided to log the reboot.
If anyone suffers from this (not the reboot loop), if you could, could you check your battery voltage level and possible mA amount before and after the reboots happen. (just mark the time down and refer to the logs later. Thanks!
Click to expand...
Click to collapse
You can goto Recovery then wipe davik cache or/and wipe cache +davik cache and reboot to check if it works
Dear all,
Recently my Note is facing a weird problem. While my son is playing a game, the battery drops 20-30% in 10 minutes. If I shut down the tablet and re-power then the battery goes to normal again.
In the battery stats I can see a huge drop during game usage and then up again on reboot.
I performed a factory reset but the same happens....
I flashed the Kit Kat via Odin.... but the same
Any ideas?
Drain the battery down to below 5% then charge it to 100 and it should be fine. It happened to me once and after a full charge after a full drain it never did it again
Sent from my SM-G900T using Tapatalk
toyanucci said:
Drain the battery down to below 5% then charge it to 100 and it should be fine. It happened to me once and after a full charge after a full drain it never did it again
Sent from my SM-G900T using Tapatalk
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Click to collapse
This is what worries me.
I drained the battery and charged it fully powered off. It did it again. I drained the battery and charged it fully powered on. It did it again.
If I'm using it for browsing, papyrus, images etc its fine. This happens only in games and when i reboot the battery percentage is ok again.
strange....
STELIOSFAN said:
This is what worries me.
I drained the battery and charged it fully powered off. It did it again. I drained the battery and charged it fully powered on. It did it again.
If I'm using it for browsing, papyrus, images etc its fine. This happens only in games and when i reboot the battery percentage is ok again.
strange....
Click to expand...
Click to collapse
I had the exact same problem as you are describing but additionally, my overall battery life wasn't lasting as long as it should either. I ended up sending it to Samsung's repair center to get fixed. I'm not sure what they did but some other people on the forums suggested it was a motherboard issue.
So the capacity of the battery seemed just fine but the readings were crazy (dropping from 50 to 5 in minutes and then on reboot back on 50).
After 2-3 full cycles of charging nothing changed. Flashed fw nothing changed. Went to Samsung service and they just informed me that they changed the battery and now performing final checks.
Hope this will solve the issue. I'm too lucky that I am in the "6 months warranty" window for battery...
How does one go about sending it into Samsung? After getting it back, did you see a significant change?
I've been debating doing this but wasn't sure how to go about it.
I haven't got it back yet. They just called me and they said that apart from the battery, they need to change another part (the telephone operator didn't know which part) and I'm going to receive it tomorrow.
So I'll let you know once I receive it.
STELIOSFAN said:
Dear all,
Recently my Note is facing a weird problem. While my son is playing a game, the battery drops 20-30% in 10 minutes. If I shut down the tablet and re-power then the battery goes to normal again.
In the battery stats I can see a huge drop during game usage and then up again on reboot.
I performed a factory reset but the same happens....
I flashed the Kit Kat via Odin.... but the same
Any ideas?
Click to expand...
Click to collapse
Did you fix the problem ? I have the same problem and i don't know how to fix it. (i am with 4.3 not rooted).
Rupar4o said:
Did you fix the problem ? I have the same problem and i don't know how to fix it. (i am with 4.3 not rooted).
Click to expand...
Click to collapse
After trying everything (flashing different roms via odin, factory reset, full battery cycles etc) the problem never went away.
Went to Samsung service. They checked the battery and had to replace it.... within the warranty.
Same issue here. Just got an email saying its fixed. They changed the charging port and lcd. Weird that they replaced the lcd.
Well I got it back. Seems they broke the s pen function when taking it out or putting in. The tablet thinks it's always out of its slot. I guess another 2 weeks without this thing. What a pain in the ass. Times like this makes me wish I bought an ipad where I could just walk into the store and get it fixed that day.
I had the same problem. I sent it back on Monday and got it back 7 days later. They did not say what they changed, but now everything is working fine. I even got a new usb cable and a magnetic Germany flag
I sent mine in for an overheating problem and they changed the charging port and gave me a new cable. I initially also had the random drops in battery but seems to be better now.. They said bad voltage going to charging the battery or something. Still have overheating so gotta send it in again?
Sent from my SM-P600 using XDA Premium 4 mobile app
So guys did you get it fixed? I have exactly the same problem. I have sent it to fix at the sam service - they changed the charging port, but it didn't help anything. 1,5 years of normal usage and now I can pretty much throw it into the toilet. God damn POS!
Galaxy Note 10.1 2014 battery drops
Hello all,
Just wanted to inform you all that I have been experiencing these battery drops (yesterday from 93% to a mere 5% in a matter of minutes) for a very long time now. I am running under the latest 4.4.2 stock firmware.
Also, battery life is way below par (understatement !), where the Note sometimes drops to around or below 5% (the magic number below which the screen starts to dim pretty dramatically and there's no way to influence that)
Funny thing is that after the battery drops to below 5% or even 1 or 2%, it's still possible to use the tablet for quite a number of hours afterwards, which suggests it may be something with the logic estimating/determining the remaining battery capacity, rather than the battery itself....)
Now I've tried draining the battery and fully recharging it multiple times/ resetting the stats using free apps / revert to factory settings etc.
All to no avail unfortunately, this problem simply keeps coming back.
(By the way: Apart from the battery and battery life, the Note is an excellent device, and delivers as promised.
Please also note that charging it through the microUSB cable is also simple, stable and relatively fast, unless you compare it of course to my all new Samsung Galaxy Note 4, which has a superior fast charge mode and offers the highest possible battery-life at this moment and easily beats any other smartphone (including the usual suspects from that Cupertino-based firm of which I can't force my mind to remember the name of.....) in this price-quality and performance category )
As for warranty:
Battery is no longer under warranty, the device itself is.
As such, I will now get the battery replaced by a new Samsung OEM-battery first, and see if that resolves the issue.
If it doesn't help, I will send it in for repair for Samsung.
I will keep you all informed on the resolution and cause.
Likewise, if there's anyone that has gotten to the root cause of this issue, please let me / let us know
Some users reported some 'magic part' OTHER than the battery itself (motherboard / charging circuit or even the lcd ??) having been replaced by Samsung after sending it in for repair.
That information could be very valuable to us all in trying to get Samsung to resolve the issue, so I would really appreciate it if someone would share this info in this thread.
Hey I know that there hasn't been much activity on this particular thread, but i too have been experiencing this problem for over a year now. I sent it into samsung twice and it still never fixed the issue and by the time i was going to send it in the 3rd time it was out of warranty. I personally removed the back cover and unplugged the battery for a while and that did not help. I have tried flashing different ROMS and kernels to no avail until last week. I flashed Temasek's Unofficial Build found here http://forum.xda-developers.com/gal...t/lt03wifi-temaseks-unofficial-build-t2980604 and after 3 full power cycles i have not had a single random drop yet i even managed to go 3 days with 6 hours of screen on time which is a record for me with this device. Not sure if it will help everyone but this seems to have solved my problem and i am thrilled! Also (as embarrassing as it is) i played 2.5 hours of Clash of Clans straight without a single random drop either.
I am beginning to have the issue as well on my P605v. Has there been any progress with your battery replacement? @mroset
KwestJones said:
I am beginning to have the issue as well on my P605v. Has there been any progress with your battery replacement? @mroset
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Click to collapse
Hello KwestJones,
I've successfully replaced the battery in the Note 10.1 2014, and it has improved things. With a little care, this is easy to do. Just removing the battery connector is a bit typical, you need to lift it carefully and slightly to remove it.
The result is not as drastic of an improvement as I would like to have seen, but at least the sudden drops in battery capacity percentage seem to be under control now.
I am doing a video test now, and will see how it behaves and let you know.
BR,
Maarten
Very curious to hear if replacing the battery corrected this issue. I've been experiencing this same battery drop issue for 2 or 3 months and the unit is well outside of warranty. Hoping there's a simpler fix, but willing to replace the battery if that will work since the tablet itself is still a great unit.
Complete factory reset should clear the Android Coulometer's data base or learning algorithm. Just clearing options of Battery Monitor Widget for rooted devices won't help. There are some other apps, which seem to help if the charge level never reaches 100%, a related, but not identical problem.
I have an old tablet suffering from this, with a tweaked custom rom, and i didn't want to clear and setup that completely. The algorithm or database is "learning" again, and the capacity jumps have become fewer and smaller over the last months. It should depend on how long the device was used and never reset before the incident. In my case over a year.
Itvs much like my cars fuel calculator, which won't work correctly during traffic light stops. Right after starting the engine, fuel consumption can raise several liters/h, when the car don't drive, as it uses the last sampled value(every 30 meters). And you need several kilometers to drive to have these levels drop to realistic ones again. While after a long driving distance, a traffic light stop will hardly have an influence.
Hello.
My device is GT-N5100 with a custom KK TouchWiz based ROM
I have terrible with battery percentage meter incorrect.
Sometimes charging form 30% to 60% it's suddenly jump to 100% but still charging for a long time may be long than 1 hour to show battery full.
And sometimes with discharge ,battery percentage meter show much than 16% then suddenly depleted battery to power off itself.
I also ever face this issue from stock KitKat.
Any way to fix it ?
Same problem her
memooffon said:
Hello.
My device is GT-N5100 with a custom KK TouchWiz based ROM
I have terrible with battery percentage meter incorrect.
Sometimes charging form 30% to 60% it's suddenly jump to 100% but still charging for a long time may be long than 1 hour to show battery full.
And sometimes with discharge ,battery percentage meter show much than 16% then suddenly depleted battery to power off itself.
I also ever face this issue from stock KitKat.
Any way to fix it ?
Click to expand...
Click to collapse
Hi, Yes I have this same problem. Don't know why it happens and don't know how to fix it. Charging for a long time and very little % increase leave it for a little while longer and it pops up to 100%. No idea why it does this.
I have the same problem, I have already rooted my device and tried some apps to recalibrate It but useless
A battery pull (I.e. disconnect the battery for 15-60 mins) will help reset the fuel chip, but the issue with incorrect calibration will eventually return over time. Rooting the device, installing Xposed and the Wanam Xposed module and disabling Dynamic Voltage Frequency Scaling (DVFS) once you've performed the battery pull helps a lot to prevent the issue from returning. Deleting Battery Stats does absolutely nothing.
Sent from my GT-N5110 using Tapatalk
rtiangha said:
A battery pull (I.e. disconnect the battery for 15-60 mins) will help reset the fuel chip, but the issue with incorrect calibration will eventually return over time. Rooting the device, installing Xposed and the Wanam Xposed module and disabling Dynamic Voltage Frequency Scaling (DVFS) once you've performed the battery pull helps a lot to prevent the issue from returning. Deleting Battery Stats does absolutely nothing.
Sent from my GT-N5110 using Tapatalk
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Click to collapse
Thank you very much for your suggestions.
I ever disconnected battery two times but it can not help just little different (before disconnect battery 50% after connected increase to 67%)
I will try Xposed module to disabling Dynamic Voltage Frequency Scaling and I will report you back.
I hope it will be better.
Your battery is dying. Change it to a new one. Buy a new one off ebay & do it yourself, its fairly easy.
His battery *could* be dying, but a bunch of us with Note 8s have encountered the same issues with reported battery voltages jumping all over the place resulting in the fuel chip thinking that, on average, it has 40% less juice before it thinks it's empty and dies. The net result is that many people are getting 3-4 hours of battery life, rather than the 7-10+ hours they should be getting. Someone on these forums tracked it down to how DVFS interacts with how the fuel chip gets calibrated over time and another person managed to snag a copy of the fuel chip's data sheet but the instructions on the sheet on how to reset the chip in software didn't seem to work, hence the battery pull needed to reset the chip to use its stock curves.
Sent from my GT-N5110 using Tapatalk
Thank you all.
I went the new battery route with a New Power 99 one from Amazon. Nerve-wracking as Hell to put it in cuz I didn't want to screw my device up but really was easy. Now zero problems. How long this will last is, of course, the question. But even if I get another year out of it that'll bee good. I suggest you try that.
rogerperk said:
I went the new battery route with a New Power 99 one from Amazon. Nerve-wracking as Hell to put it in cuz I didn't want to screw my device up but really was easy. Now zero problems. How long this will last is, of course, the question. But even if I get another year out of it that'll bee good. I suggest you try that.
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Click to collapse
Thanks.
But I allready change new battery from Samsung about 6 weeks ago.
It is too expensive in my country but it has 3 mount guarantee from Samsung.
Everything seems OK.
Problem solved
[/COLOR]
mrcooll said:
I have the same problem, I have already rooted my device and tried some apps to recalibrate It but useless
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Click to collapse
Hi everybody
I have the same problem with my n5100 device, my battery % suddenly jump when charging and when discharging. So, I have returned my tablet to the post sale customer service as part of 1 year of warranty, they have changed the motherboard and now it work perfectly:good:. Actually the problem was not related to the battery
After month testing with an ebay cheapie knoxed 4.4.2 Note 8.0... All Samsungs have DVFS in the Touchwiz's build. The only way to fly is to disable it with wanam kit or DVFS disabler or Wanam xposed. Though I rather live with unplugging and plugging back in the power than to deal with Wanam's battery sucking issues with KK. Until wanam is redesigned for KK, I'm staying away.
Hello,
I am experiencing a rather odd issue since about a week. This is my story:
I am running CyanogenMod on my OPPO Find 7a. I stayed on a build from 2014 (a nightly) that was working okay for me (CM 11, Android KitKat). I decided to update my version last week to the latest CM 12.1 (on Lollipop), and even though I ran in some issues (gapps, update the recovery, etc.), after doing a clean install, it seemed to be fine.
However, just after installing this new build, my problems started: my phone was randomly shutting down (like if no battery was left), but then when plugging it back in I could see it wasn't empty (sometimes it was 20%, sometimes 50%, sometimes as high as 80%). I thought it could be caused by corrupted battery stats, so I tried a bunch of apps and different methods to reset this, without success.
I also tried a factory reset, reinstalling of the ROM, changing the recovery to the cyanogenmod's one, changing back to TWRP (latest 2.8.6.0), wiping the caches, etc. None of this helped.
Today, I decided to install a backup I had from before the installation (a KitKat backup then), to see if the problem came with the new ROM. The phone seemed to work better at first, but after a while I experienced again this sudden shutdown (black screen, phone dead, Android didn't shut it down). So I started to monitor the battery level and voltage, and I noticed something surprising:
When plugged in, the battery voltage is steady at 4300mV. When disconnecting the charger, the voltage is dropping between 3300 and 4100 depending on the charge level (from my understanding, it is a normal behavior). However, as soon as I start using an app that is heavier (for example, Google Maps and jumping from one city to another frequently), I notice that the voltage steadily goes down, and the temperature of the battery goes up.
My conclusion after these tests is that the phone shuts down when the voltage gets lower than 3000mV (something around that value), after few minutes of using a "heavier" app. I checked regularly the temperature, and it didn't go above 30C (it was 26C when idle, I doublt 30C is a problem for a Li-ion battery).
So I have now these questions:
Is this normal that the battery voltage drops when using heavier apps?
Shouldn't the OS handle the load to avoid it to get under the threshold shutting down the phone?
Is it my battery at fault or probably some wrong installation of something? I find it odd that the battery problem appeared EXACTLY at the same time than the Lollipop update I did (and I saw many people having battery issues with this update).
Unfortunately I don't have a second battery to test if it works better, and I'd like to avoid buying one for nothing if possible...
Thanks
EDIT: another weird thing happening, the phone seems to need to restart several time to get in the recovery...
I'm having this problem too. I just got the phone on eBay, and updated to Oppo's Lollipop AOSP beta. Hopefully it is something with a quick software fix. I haven't tried switching ROMs again.
I changed my battery and it fixed the problem. So it was a hardware issue apparently, just odd that it appeared exactly at the same time of the update.
Sangoria said:
I changed my battery and it fixed the problem. So it was a hardware issue apparently, just odd that it appeared exactly at the same time of the update.
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Yeah. Your description was a clear indication of a failing battery or (possibly) at least a dirty battery contact.
Batteries will drop in voltage under load, but a healthy Li-Po should only drop a little bit (Probably maybe 100 mV, worst case 200 mV or so under load is my guess, I'd be pretty surprised to see a 200 mV drop from a healthy LiPo under reasonable load). If it's dropping a few hundred millivolts under load, the battery is toast or there's a loose connection.
I've had my US factory unlocked phone for 2 months and battery life up until now has been stellar. Now, sometime since the December Nougat security update the phone has very rarely been entering deep sleep and the standby battery life has taken a huge hit. Any idea what could be causing these wakelocks? The problem is that they persist even after a factory reset and in completely stock configuration.
This screenshot is only of a couple minutes, but over the course of an entire day, these 2 wakelocks (NETLINK and HVDCPD_WL) combined keep the phone awake about 80-90% of the time when the screen is off.
EDIT: I should mention that the bootloader has never been unlocked, no custom software, firmware or rooting.
I've also just realized that Quick Charge is no longer working - either with the included wall charger + cable or with an Aukey QC3.0 charger. Multiple factory resets have not solved the wakelock issue, so I think it may be a hardware problem. Going to try to warranty it.
These wakelocks ended up disappearing after I flashed Maximus HD and ElementalX. Now, starting yesterday - about a month since they stopped and with no changes made to the phone - they're back and causing massive battery drain.
Anyone else seen these? I figure it must be some kind of weird hardware bug... But so far no amount of reboot / wipe is fixing it.
Any Solution
radeon_x said:
I've had my US factory unlocked phone for 2 months and battery life up until now has been stellar. Now, sometime since the December Nougat security update the phone has very rarely been entering deep sleep and the standby battery life has taken a huge hit. Any idea what could be causing these wakelocks? The problem is that they persist even after a factory reset and in completely stock configuration.
This screenshot is only of a couple minutes, but over the course of an entire day, these 2 wakelocks (NETLINK and HVDCPD_WL) combined keep the phone awake about 80-90% of the time when the screen is off.
EDIT: I should mention that the bootloader has never been unlocked, no custom software, firmware or rooting.
Click to expand...
Click to collapse
I have same problem any solution u got.
I have also same Problem with HTC 10 and Viper and CleanSlateKernel.
Hello this is my Solution for the same Wakelocks: https://forum.xda-developers.com/showpost.php?p=75903286&postcount=90
greets