Related
Within a second my Captivate Glide will suddenly go to 0% power then slowly charge back up over time..or if I charge it, it jumps back up to about where it left off. And it happens pretty much every time I turn my phone on for more then 5 mins. It seems to happen while sending or receiving text? Any ideas what could be causing this or a solution?
I keep my data off, and theres 3 apps (Stock SMS Messenger, Handcent SMS, and the Contacts+ App) that can handle SMS on my phone, and I have locker pro that displays my notifications. And I also use the Nova Launcher, but thats the only app's I keep running. Maybe a conflict with the apps or a bug with one of the apps? I don't see how that'd effect the battery that much but possibly?
I've also changed my ROM a few times, but right now I'm back on the newest ICS update and I've rooted it. Maybe I need to change it again? I can't remember if this problem started happening before I did my last change.
Or maybe just a bad battery? I don't know much about batteries but I haven't had this phone long, I don't think it'd be the battery.
If you have any more questions feel free to ask and I appreciate any help!
suret said:
Within a second my Captivate Glide will suddenly go to 0% power then slowly charge back up over time..or if I charge it, it jumps back up to about where it left off. And it happens pretty much every time I turn my phone on for more then 5 mins. It seems to happen while sending or receiving text? Any ideas what could be causing this or a solution?
I keep my data off, and theres 3 apps (Stock SMS Messenger, Handcent SMS, and the Contacts+ App) that can handle SMS on my phone, and I have locker pro that displays my notifications. And I also use the Nova Launcher, but thats the only app's I keep running. Maybe a conflict with the apps or a bug with one of the apps? I don't see how that'd effect the battery that much but possibly?
I've also changed my ROM a few times, but right now I'm back on the newest ICS update and I've rooted it. Maybe I need to change it again? I can't remember if this problem started happening before I did my last change.
Or maybe just a bad battery? I don't know much about batteries but I haven't had this phone long, I don't think it'd be the battery.
If you have any more questions feel free to ask and I appreciate any help!
Click to expand...
Click to collapse
I had about the same problem, with it working fine with a decent charge (anywhere between 30-80%), and all of the sudden it would say "battery critically low" and shut down. Putting it on the charger would often get the charge to show what it was before it freaked out.
I noticed that the battery was starting to bulge and get somewhat "mushy"....which told me the battery was probably going to explode or leak if I didn't replace it soon
I have had the phone for a year and four days, and this just showed up in the last few days...fortunately I bought an extended warranty and they will pay for the replacement battery I just picked up today.
FYI, the battery should be totally flat on both sides. Mine would wobble if I set it on a table.
Ok, TL1170, Thanks!
I already narrowed it down to my battery by the time you posted that because I factory reset my phone multiple times and changed the ROM once to see if that'd help, and it didn't..I was running out of stuff to blame it on ..
But yeah, my battery is pretty badly deformed and I just ordered a new one.
Thanks, mine is doing the same thing - about once every 2 days or so. I can see in the battery life plot that it sometimes goes from 90% almost completely vertically to 0% and then right back up to 90%. I don't see any obvious bulges or "mushiness" to it, but it doesn't seem to be completely flat when put on a table. I'll see if I can get a replacement battery, this phone was not used by it's previous owner for maybe a year or so before I bought it, maybe that might have been part of the problem.
suret said:
Ok, TL1170, Thanks!
I already narrowed it down to my battery by the time you posted that because I factory reset my phone multiple times and changed the ROM once to see if that'd help, and it didn't..I was running out of stuff to blame it on ..
But yeah, my battery is pretty badly deformed and I just ordered a new one.
Click to expand...
Click to collapse
Any time a battery is misshaped it can do the oddest things.
Pull out and visually inspect your battery. If there are any visible cracks or bulges, dispose of it carefully. Damaged lithium ion batteries are incredibly dangerous; a properly pissed off LIon will produce a sizable fireball.
If your battery looks fine, fully charge it (until your phone says "100%" or "Charged"), then fully discharge it (don't connect to the charger again until your phone shuts off for lack of power). This is to calibrate the charge estimator chip in the battery itself. Don't bother with batterystats.bin, it's completely unrelated.
If the above doesn't work, you need a new battery. If the new battery behaves the same way, you need a new phone
Happening to us too
It's been happening to my phone for a while now, but I'm usually using it while at a desk so I can keep it charging. However, it just started happening to my wife's Captivate Glide also. I checked my battery and don't notice any bulging or non-flatness... but it happens about once or twice a day now - Pretty much anytime I do anything more than make a call with the battery indicator saying it's somewhere less than maybe 90% charged. I've taken to using a portable backup battery when I'm out.
If you view the battery usage screens, you can see the cliffs where it drops from 80-90% down to zero and right back up. We've only had them for about a year, so I'm going to take it to AT&T and see if they can do anything for it... probably not.
roothorick said:
Pull out and visually inspect your battery. If there are any visible cracks or bulges, dispose of it carefully. Damaged lithium ion batteries are incredibly dangerous; a properly pissed off LIon will produce a sizable fireball.
If your battery looks fine, fully charge it (until your phone says "100%" or "Charged"), then fully discharge it (don't connect to the charger again until your phone shuts off for lack of power). This is to calibrate the charge estimator chip in the battery itself. Don't bother with batterystats.bin, it's completely unrelated.
If the above doesn't work, you need a new battery. If the new battery behaves the same way, you need a new phone
Click to expand...
Click to collapse
jester131 said:
It's been happening to my phone for a while now, but I'm usually using it while at a desk so I can keep it charging. However, it just started happening to my wife's Captivate Glide also. I checked my battery and don't notice any bulging or non-flatness... but it happens about once or twice a day now - Pretty much anytime I do anything more than make a call with the battery indicator saying it's somewhere less than maybe 90% charged. I've taken to using a portable backup battery when I'm out.
If you view the battery usage screens, you can see the cliffs where it drops from 80-90% down to zero and right back up. We've only had them for about a year, so I'm going to take it to AT&T and see if they can do anything for it... probably not.
Click to expand...
Click to collapse
If you're really desperate to get those particular batteries working, you could try cleaning the contacts, both on the battery and in the phone, with rubbing alcohol and Q-tips. But most likely you will need new batteries.
Battery( low power) Shut Down Issue Fixed
I also was having the "critical powerl level" shut down issue over the past two weeks. My phone is about two years old, and there was a few occasions in the past two weeks where i pulled it out of my pocket and it was off. Then this past week the phone (on a full charge) would go anywhere from around 90% sometimes %40, and then all of a sudden say "battery low" and shut off. It would turn back on, but would only stay on for a few minutes.And a few times it also got really hot. It wasnt doing this when plugged into the wall so i examined my battery and there was NO visible flaws or bulging of any kind, it looked fine. But as we all know just because it looks good certainly doesnt mean it is so i odered one on ebay for about $10. It arrived 2-3 days later and instantly fixed my problem. The phone is fine now and hasnt done anything wierd. It was the battery. These batteries have a limited life span, and very often the phone may say the battery is 76% charged but the capacity of the battery under load can still draw it down to 0%. You cant always trust the level the phone says its at. So if anyone else out there is having this power issue it really isnt expensive to find a good battery out there. The one i got was $9.98 and it is a Samsung battery identical to the one that came with the phone. Except the new one has a fresh date of 2013 on it. Very happy to have my phone back. Ive never been a part of any sites like this, but im posting here now because there seems to be a lot of people having this issue, and often someone will put a very complex procedure on these sites to fix an issue when its not always necessary. If you have the power/shut off issue like i've described here and your phone does the same as mine was its probably the battery, and for the price of a new one like i got, its worth trying.
Hello:
My Tab Pro 8.4 has picked up an issue - it stops charging at 89%. Battery monitor - the one built in, as well as GSAM Battery monitor - show the charging increasing charge in a linear fashion to some 85%, then the rate gradually decreases, till the curve flattens at 89%. The phone still claims that the battery is charging.
I just discharged the phone fully, let it recharge - same behavior.
I did root the phone 2 days before, I wonder, if that has something to do with it.
Thanks for any info, Paul.
paulcc said:
Hello:
My Tab Pro 8.4 has picked up an issue - it stops charging at 89%. Battery monitor - the one built in, as well as GSAM Battery monitor - show the charging increasing charge in a linear fashion to some 85%, then the rate gradually decreases, till the curve flattens at 89%. The phone still claims that the battery is charging.
I just discharged the phone fully, let it recharge - same behavior.
I did root the phone 2 days before, I wonder, if that has something to do with it.
Thanks for any info, Paul.
Click to expand...
Click to collapse
Hello,
maybe you need to recalibrate your battery. This can be done by deleting batterystats.bin. Search google play, there are some apps, that can do it.
Rutr said:
Hello,
maybe you need to recalibrate your battery. This can be done by deleting batterystats.bin. Search google play, there are some apps, that can do it.
Click to expand...
Click to collapse
Thanks for the info.
In desperation, I tried few things - first a Nandroid restore to the state just after rooting - that did not help.
Next I performed a hard reset. That fixed the problem for now.
I will carefully put back in the xposed modules I used, an see/hope that the problem does not come back.
Paul.
paulcc said:
Thanks for the info.
In desperation, I tried few things - first a Nandroid restore to the state just after rooting - that did not help.
Next I performed a hard reset. That fixed the problem for now.
I will carefully put back in the xposed modules I used, an see/hope that the problem does not come back.
Paul.
Click to expand...
Click to collapse
Glad to hear that. Thanks for info.
Hi,
Did you find the actual cause of this?
I have a stock 8.4, non rooted and I find the same thing, I have attached a screen shot of the battery charge and dream. ...
Can anyone help with this please, the battery is bad enough without it topping off at 89%!!
Cheers,
Ian
Hi,
Has anyone else had this issue?
I let my tab run down to a dead battery, plugged it on over night and it is still only at 87% ...
Its driving me nuts!
I am not rooted, so don't see bow it's anything I have done, any ideas?!;
Thanks in advance
ianuk said:
Hi,
Has anyone else had this issue?
I let my tab run down to a dead battery, plugged it on over night and it is still only at 87% ...
Its driving me nuts!
I am not rooted, so don't see bow it's anything I have done, any ideas?!;
Thanks in advance
Click to expand...
Click to collapse
I do not have an answer, but I wanted to thank you for posting - your answer seems to indicate, that this is a issue not related to rooting.
While dealing with this, I have put back the stock rom ( but still with custom recovery on the device ) - which made charging work to 100%, then rooted again. With this config the charging worked for few days to 100%, till if failed again all of a sudden, getting stuck at 91% charge, and claiming, that the charging was ongoing for may hours.
While the charging was broken, I put on the CleanROM 1.0, and that fixed the charging problem again.
I do not see a clear pattern of this failure....
Paul.
Rutr said:
maybe you need to recalibrate your battery. This can be done by deleting batterystats.bin. Search google play, there are some apps, that can do it.
Click to expand...
Click to collapse
This does not "calibrate" anything. Any app that claims to fix the battery meter by wiping this file, is making a bogus claim. All the batterystats.bin files does, is indicate how much battery various apps/processes are using since the last charge. The file gets wiped ever time you connect the charger:
http://www.xda-developers.com/android/google-engineer-debunks-myth-wiping-battery-stats-does-not-improve-battery-life/
What you want, is to reset the "high" and "low" voltage flags related to Smart Battery. If there is an app that can do that, it might resolve your issue. Flashing a ROM also resets the flags (why you always need to do a battery charge/discharge cycle to get accurate readings every time you flash a ROM). So you might flash the ROM you are already on (stock?) and see if that helps.
But the issue itself is odd. If a higher voltage is achieved, I believe the "high" flag should automatically be reset. I shouldn't just "stop" at 89%.
Yes, I have (had) the same problem. I would use the tab through the day, then plug it in. In the morning, it would almost always be around 89...sometimes a bit more, others a bit less. I loaded battery doctor from the play store and set up a widget to kill all but a few specified apps (yeah, I typically try to avoid task killers, but this was driving me crazy). In my case, when I killed the apps, the battery would finish charging.
Theory (take it with a grain of salt as your mileage may vary): either the charger I am using or the tab has 'intelligence' that slows the charging down when it nears full, possibly to protect the battery. Certain apps running (sleeping?) in the background seem to keep the tab perpetually in a near-full charge state -- just enough of a drain to balance the 'slowing' charge. Every time I have killed the apps, the tab has quickly finished charging.
Again, this is just my experience. YMMV Good luck.
Try running the battery down to below 20% then recharge it. That should recalibrate the battery monitor.
Sent from my SM-T900 using XDA Premium 4 mobile app
I've been having issues with my 8.4 stopping charging only midway to 100%. If I unplug the cable and replug it, it continues charging.
Civuck said:
I've been having issues with my 8.4 stopping charging only midway to 100%. If I unplug the cable and replug it, it continues charging.
Click to expand...
Click to collapse
i have had the exact same issue , mine stops charging at 54% , need to unplug replug and then it starts charging back again, also from 78% it jumped straight to 100, something is really wrong , how could samsung break something so simple and basic
I've got a very similar problem. It stops charging, usually at something like 40 or 50. If I restart it will continue charging, but not all the way, maybe up to 70 or 80. I think I tried just disconnecting the charger and reconnecting it and it didn't work but I'll try it again as that would be easier than restarting...
I sent it for service and after weeks of back and forth they gave me the old "it's rooted, so it's out of warranty".
F U Samsung. This piece of **** tablet has been messed up since day 1. First with the over sensitive screen and now this. Sony FTW.
omarrabbat said:
I've got a very similar problem. It stops charging, usually at something like 40 or 50. If I restart it will continue charging, but not all the way, maybe up to 70 or 80. I think I tried just disconnecting the charger and reconnecting it and it didn't work but I'll try it again as that would be easier than restarting...
I sent it for service and after weeks of back and forth they gave me the old "it's rooted, so it's out of warranty".
F U Samsung. This piece of **** tablet has been messed up since day 1. First with the over sensitive screen and now this. Sony FTW.
Click to expand...
Click to collapse
You need to unplug the battery under the rear cover. Then plug it back in and boot up and charge it. Only way to fix. I never had issues again after doing that.
dottat said:
You need to unplug the battery under the rear cover. Then plug it back in and boot up and charge it. Only way to fix. I never had issues again after doing that.
Click to expand...
Click to collapse
Thanks for that advice! How can I remove the rear cover? I'm afraid I'll damage it if I just brute force it open.
omarrabbat said:
Thanks for that advice! How can I remove the rear cover? I'm afraid I'll damage it if I just brute force it open.
Click to expand...
Click to collapse
Gently with something similar to a guitar pick. Once its started just gently go along the edge.
omarrabbat said:
Thanks for that advice! How can I remove the rear cover? I'm afraid I'll damage it if I just brute force it open.
Click to expand...
Click to collapse
Did you try it already, and if so, did it work..?
HELP
Sicron said:
Did you try it already, and if so, did it work..?
Click to expand...
Click to collapse
Can you please take a picture of the procedure or make a short vid please? You open in from the rear (on the fake leather) of from the front( screens bezel) ?
I have the same problem with my SM-T325 , i've tried everything on forums : reset, hard reset( vol menu button power button) nothing works !
Thanks !
Ps: I'm using genuine 2A white charger and even tried with Asus Nexus 7 charger 2A( ridiculously is that it works better than with the genuine samsung, the white one needs 5 unplug/plugs, with Asus Black charger only 3 unplug/plugs )
cristi_pitbull said:
Can you please take a picture of the procedure or make a short vid please? You open in from the rear (on the fake leather) of from the front( screens bezel) ?
I have the same problem with my SM-T325 , i've tried everything on forums : reset, hard reset( vol menu button power button) nothing works !
Thanks !
Ps: I'm using genuine 2A white charger and even tried with Asus Nexus 7 charger 2A( ridiculously is that it works better than with the genuine samsung, the white one needs 5 unplug/plugs, with Asus Black charger only 3 unplug/plugs )
Click to expand...
Click to collapse
My battery has the same issue. I'm going to start charging my Tab Pro 8.4 with a lower amp/volt charger. I think the 5.3 volts & 2 amps puts stress on the internal charging / battery regulator circuit. The 5.3 volt makes the usb cable in the tablet reasonably hot to the touch. (a hunch)
Galaxy Tab Pro 8.4 Battery Replacement Video
Update: I scraped the 5.3 volt charger for a standard 5 volt charger @ 2 amps. It won't charge while in use but it does charge to 100% from 5%, powered off overnight. I also tested a 5 volt 1 amp charger (while slower) did charge from ~50% to 100%.
I would like to see others test this theory out.
Would also like to note, I believe Samsung included a 5.3V charger instead of a standard 5V so the tablet is able to charge while in use. My guess is the circuitry was originally designed for the standard 5 volts but once they saw the tablet's charge rate while on, they decided to throw in a different charger to make up for their mistake instead of a more reliable circuit design to handle the volt boost. More then likely they did tests to see if the tablet was able to handle the new charger but did not conduct the experiment for enough time to see the degrading results (faulty battery level readout).
If they knew of the issue in production they could have fixed the issue in a batch revision or recall or they flat out ignored the results and are in denial. Shame on Samsung if this is the case. Funny how they released the "better"("revision") Tab S while refusing to fix the Tab Pro. Now it seems to be biting them in the ass.
I still want to completely test this theory out and give it more time, but so far my assumption is seemingly correct.
cristi_pitbull said:
Can you please take a picture of the procedure or make a short vid please? You open in from the rear (on the fake leather) of from the front( screens bezel) ?
I have the same problem with my SM-T325 , i've tried everything on forums : reset, hard reset( vol menu button power button) nothing works !
Thanks !
Ps: I'm using genuine 2A white charger and even tried with Asus Nexus 7 charger 2A( ridiculously is that it works better than with the genuine samsung, the white one needs 5 unplug/plugs, with Asus Black charger only 3 unplug/plugs )
Click to expand...
Click to collapse
I had another interesting experience with this tablet.... it charged 100% without notice that the battery is full(I saw this tiny little detail -battery full icon- ensures that it is really charged) restarted it to verify something and shock !!! the value dropped to 62% and the charging sequence stopped ...and even if it shows "charging" while I'm typing these lines, it dropped to 59% ). **** !!!
Hello,
I have a problem with this tablet , when i charge it to 100% and use it for like 5-10mins i'm suddenly at 1% battery. But i can still use youtube or other apps for 40mins + So i'm pretty sure the battery is at 95% or something.
Also when i charge and stop charging it can reset the whole thing and say that i have 2% battery.
I already tried to charge 100% > let it decharge 40-50% > power off 5houres > but didn't help..
Somebody said remove the battery for 5mins and problem is gone..
Anyone done this so far?
i'm on STOCK ROM , no root or what so ever.. NO battery save app or something like that.
Hi, I'm having the same issue but it's not as dire as yours. Since you're not rooted or anything, I strongly believe it's a hardware issue, try replacing your device cause it shouldn't drain that fast. I'm using nolekat rom and it takes me 10 hours to charge fully or more but half the time for it to be drained. I haven't tried removing my battery manually but you could try that too. Most likely it's a hardware issue since you didn't mess with it so much. Hope this helps.
Sent from my SM-T210 using XDA Free mobile app
steelbrachen said:
Hi, I'm having the same issue but it's not as dire as yours. Since you're not rooted or anything, I strongly believe it's a hardware issue, try replacing your device cause it shouldn't drain that fast. I'm using nolekat rom and it takes me 10 hours to charge fully or more but half the time for it to be drained. I haven't tried removing my battery manually but you could try that too. Most likely it's a hardware issue since you didn't mess with it so much. Hope this helps.
Sent from my SM-T210 using XDA Free mobile app
Click to expand...
Click to collapse
I have done that and the problem is gone now for already a week.
i'm on kitkat aswell now and very happy
Hi,
My tab is getting switched off frequently though the battery is fully charged, it suddenly dies down during any kind of work and im not having battery draining problem in my tab. But when I plug in a charger or battery bank then the tab works fine with out shut downing. Is this problem related to battery or hardwire or software. Kindly suggest if some one facing similar situation
Hi XDA
I have another problem, not too bad as yours, but very nagging and upsetting. What happens is that my tabet takes practically half a day for charging up the battery. It takes like 12 or more hours to charge up from 0 to 100%. I have tried unplugging the battery as you explained many times, also draining it, but nthing changes. And even worse it is when I'm just plugging my device after totally drained the battery, so when I try to boot my device it may boot up, when it does, after one minute it's turning off because of a suposedly 0% battery. Really I might get either that 0% or 1% battery, but after a minute when I just plug it in and boot up, it may turn off even though I turned off the sceen inmediately.
I think. the problen is maybe on the battery or in the USB port, I have tested many USB cables, many chargers, charging from my PC, but the problem keeps going an and on and on. I would like to know why this problems is happening, if I could fix it up by myself, for instance by replacing the battery or the USB port. This device was a gift, and since I got it I was dithering whether it was normal or not, but by asking soome mates and reading your post I realize that this is not normal.
Hope you read this quick reply. Many thanks for your advice and giving me advice on what and how I should do...
antonini44354 said:
Hi XDA
I have another problem, not too bad as yours, but very nagging and upsetting. What happens is that my tabet takes practically half a day for charging up the battery. It takes like 12 or more hours to charge up from 0 to 100%. I have tried unplugging the battery as you explained many times, also draining it, but nthing changes. And even worse it is when I'm just plugging my device after totally drained the battery, so when I try to boot my device it may boot up, when it does, after one minute it's turning off because of a suposedly 0% battery. Really I might get either that 0% or 1% battery, but after a minute when I just plug it in and boot up, it may turn off even though I turned off the sceen inmediately.
I think. the problen is maybe on the battery or in the USB port, I have tested many USB cables, many chargers, charging from my PC, but the problem keeps going an and on and on. I would like to know why this problems is happening, if I could fix it up by myself, for instance by replacing the battery or the USB port. This device was a gift, and since I got it I was dithering whether it was normal or not, but by asking soome mates and reading your post I realize that this is not normal.
Hope you read this quick reply. Many thanks for your advice and giving me advice on what and how I should do...
Click to expand...
Click to collapse
Changing the USB flex cable worked for me, try to buy one and watch some good tutorial about how to replace your tablet's components.
Gredwitch said:
Changing the USB flex cable worked for me, try to buy one and watch some good tutorial about how to replace your tablet's components.
Click to expand...
Click to collapse
So many thanks for your advice!! I went to buy Samsung original charger. I'm very happy now. My tablet now charges way faster (in 4 or 5 hours). I didn't ever think of this before.
Can anyone tell me the best rom for SM-T211 and the links to download it please
And thanks in advance
My SM-T211 tab 3 restart it's self after 4 day of rest or flash what can i do
Model: Tab S T805M (that's the 10" with LTE) rooted and stock firmware. I've had it for over 6 months and nev er had any issues, ever!
Yesterday I fully charged the battery using an original Samsung charger (from my late Nexus 10) until it was full.
I then used it for a while (basic stuff) then installed a game (Hill Climb Racing), played for a bit, then let it sit on the coffee table. Naturally, it went into sleep mode. Once I tried to turn it back on, about 30 minutes later, it was dead.
It doesn't have a SIM nor micro SD card in it.
I tried the key combos to get into bootloader or recovery, no go.
I tried holding power button for several seconds, no go.
I tried connecting the original charger that came with it, no go.
I hooked it up to my laptop, the same I had used to root the thing months ago and has Odin and all drivers installed and everything, no go. It won't even acknowledge there's some USB device connected.
Then, for some reason, while still connected to the laptop, I was randomly pressing buttons on the tablet (out of mild desperation, I was tired, just wanted to get it fixed and get some sleep) and I saw the battery logo again. It was at 99%, the way it was wen I last used it. So I unplugged the tablet and booted it normally.
Then, again, I used it for a while, connected to my WiFi, everything normal, and once it went into sleep mode, it died again. No buttons, no USB, no response to charger.
So, the problem is repeatable, but I haven't figure out yet the exact procedure to bring it back from the dead.
I'd like to fix it, even if I need to flash the stock ROM back on and lose root. If that's impossible, I'll settle with a tip on how to reboot the stupid thing once it enters this state. Then, eBay, here we go.
KNOX was tripped when I rooted, so I guess I can only try my luck with the warranty.
I think you should start your post letting people know that you have rooted and flashed your 10.5" and not in the last three lines.
Do you think your battery level is being reported correctly, as if your tab thinks you have 90% left when you only have 50% , then you game and use 50%, and think you still have 40% left but when your battery hits 39% it will just die, no battery warning or anything.
Flashing a tablet can cause the battery to be reported incorrectly, since you are rooted, download a free battery calibration app off the play store.
You say you have had your tablet 6 months, if you game or use other apps that rapidly drain the battery, the battery might be failing.
Since you say the fault is repeatable i would have the tablet replaced, flash it back to the stock rom and remove the root, Can you reset the KNOX counter, I think i read you can somewhere on this forum.
Good Luck
John.
Tinderbox (UK) said:
I think you should start your post letting people know that you have rooted and flashed your 10.5" and not in the last three lines.
Do you think your battery level is being reported correctly, as if your tab thinks you have 90% left when you only have 50% , then you game and use 50%, and think you still have 40% left but when your battery hits 39% it will just die, no battery warning or anything.
Flashing a tablet can cause the battery to be reported incorrectly, since you are rooted, download a free battery calibration app off the play store.
You say you have had your tablet 6 months, if you game or use other apps that rapidly drain the battery, the battery might be failing.
Since you say the fault is repeatable i would have the tablet replaced, flash it back to the stock rom and remove the root, Can you reset the KNOX counter, I think i read you can somewhere on this forum.
Good Luck
John.
Click to expand...
Click to collapse
Yes, I did mention in the FIRST line I had a rooted device with stock ROM.
Tonight I was just able to enter bootloader and stock recovery and did a data wipe / factory reset. Let's see what happens now.
I'll install a battery tool to see what's really going on. Maybe my battery is ****.
GSam is the battery monitor i use, have a look at the alarms in the setting, I have them all set, I got a high temp alarm while my tab was in it`s case while i was asleep in bed, I remove my tab and the back was hot, just shows what can happen when you think your tablet is sleeping.
I bought my 10.5" before Christmas and it has never been turned off or rebooted, I have about 170 days continuous use in the battery settings, so it`s been quite reliable for me apart from that little temp hiccup.
John.
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm&hl=en
https://play.google.com/store/apps/details?id=com.gsamlabs.bbm.rootcompanion&hl=en
I don't know what happened, but my true friend is probably deadly ill and she's dying.
My Samsung Galaxy Tab S 10.5 after almost 3.5 years of really hard work, 8h daily of SOT, hard CPU tasks, loading battery two times a day, started to do strange random reboots.
I was installing Blue Filter app, reading big pdf and sending this PDF from Xodo to Voice Aloud reader. Tablet was connected to charger from Moto X Style, which is turbo power charger. I saw first reboot, then other and next. Entered Cwn Twrp, cleaned cache but the problem still existed. Cleaned system, internal storage and tried to flash Iron ROM again. Strange, but tablet couldn't flash Iron ROM 3.2 gauge showed 100%, almost after beginning of installing ROM. I decided to flash 4 elements repair ROM with Odin, but it didn't help. Checked erase NAND, flashed correct pit file.
Strange, but while flashing with Odin, there were no reboots, so downloading mode is working properly. But after install, reboots returned, almost after running system first time.
Maybe it depends on ROM version? I flashed 4 files of 4.4.2 with Odin, while I was on 6.0.1 earlier?
But reboots started on proper ROM.
Also, maybe charger is responsible? Moto X Style 3A charger maybe damaged memory or motherboard of my friend?
Do you think that exchanging the battery may help? My battery when it was loading frequently showed a red cross, it can be that it's damaged, but random reboots never happened to me.
I don't want to buy new device, it's really stupid for me to spend hundreds of dollars every two, there years. I believe that a device should work 5 years or longer. Maybe corporations make devices especially to die after warranty period?
Can you help me to determine what is damaged?
It was my true friend, carrying tons of books with a thin device, reading big pdfs smoothly, making notes tons of paintings, editing photos and taking photos with my Nikon D610 via USB, listening to music with A.r.i.s.e , watching photography tutorials and movies, modern Combat 4 tons of hours, notes, showing portfolio to my clients... Yes I love my small friend, can you help me to rescue it?
You can see the behaviour here
Are the reboots happening even while plugged in or only after unplugging the charging cable?
Also is the percentage reading being sporadic meaning it changes every time it shuts off?
Replacing the battery is fairly cheap and easy on this model.
Here is a guide:
https://www.ifixit.com/Guide/Samsung+Galaxy+Tab+S+8.4+Battery+Replacement/51359
Where to buy a replacement battery:
https://www.ifixit.com/Store/Parts/Samsung-Galaxy-Tab-S-8-4-Battery/IF252-014-1
If for some reason it still has the same issue after replacing battery then the battery connector needs to be looked at under microscope. It may have a loose connection to the board meaning it would need to be resoldered.
Dear Benjamen, thanks for your help. Tab reboots even if it's plugged to charger. The percentage is strange, one time it shows 40%, another time beeps and shows low power warning.
Sometimes it works 5 minutes without reboot, some times boots many times continuously.
Do you think it's battery? No EMMC error or some chip damaged on motherboard?
Download mode Odin worked good, also CWRP worked without reboots.
Maybe internal storage is damaged?
What do you think?
If it is battery I can surely exchange it like you wrote.
You can see the behaviour of tablet on YouTube I've posted above.
Have you tried to reinstall Twrp and a custom rom besides Iron Rom and doing a clean flash? Also I was thinking it might be a corrupted sd card try to remove the sd card and reboot see if that works I had a tablet once that was going bonkers cause the sd card was messed up , it might not be it but could always try it. Also make sure your on the proper boot loader for the rom you are trying to flash iron rom thread actually has a link to all the current boot loaders if i remember correctly. I do own this device and run a custom nougat rom no issues, just shooting out some ideas but you are right this is great device and should last a long time.
Astania said:
Dear Benjamen, thanks for your help. Tab reboots even if it's plugged to charger. The percentage is strange, one time it shows 40%, another time beeps and shows low power warning.
Sometimes it works 5 minutes without reboot, some times boots many times continuously.
Do you think it's battery? No EMMC error or some chip damaged on motherboard?
Download mode Odin worked good, also CWRP worked without reboots.
Maybe internal storage is damaged?
What do you think?
If it is battery I can surely exchange it like you wrote.
You can see the behaviour of tablet on YouTube I've posted above.
Click to expand...
Click to collapse
Sounds like battery connector has loose soldering. Take it to a reputable repair shop that does soldering and tell them to check the battery connector and see if it needs resoldering. That's how I ended up fixing it with the same symptoms that you had.
Edit: Forgot to tell you but I cant play the YouTube video, maybe the embedded video link is invalid so can you send me the youtube link?
Mine has been doing the exact same thing for a couple of days now.
I'm running LineageOS 14.1.
Random reboots both with the charger connected and disconnected, Battery percentage is around 45% most of the time, but jumps to 0% or 100%.
I've already replaced the battery with a "new" one (about 12 months old, according to the label), but to no avail.
Any ideas? I really like this device and would not want to buy a replacement...
brot2
My SM-T800 started doing something strange like this yesterday. As I was watching Youtube and reading a news site in split screen mode, the screen suddenly went blank (it didn't shut down, but went blank at once). Before this happened, I saw a warning that my battery charge was below 15%. After powering on the tablet, my charge was 28%. I opened youtube and a web browser again, and the screen went blank within a minute. After powering on, I decided that I will not be using split screen mode again, but the screen eventually went blank. I monitored the CPU temperature and it didn't seem like it was running too warm (50ish C). I will try re-calibrating the battery (if that's even possible) and even replacing one, but if that doesn't help I guess it's time to move on to something new. Sadly, four years after the T800, nobody made a worthy replacement (the leaked Tab S4 specs look good, but they want to charge laptop prices for that).
PS: It's running the stock rooted (later unrooted) MM 6.0.1 from November 2016 with TWRP.
I re-calibrated battery and the tablet seems to be working fine so far.
https://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
Okay first of all very big thank you for your replies
my Galaxy Tab S 1 except strange reboots is also overheating when it has some tasks to do measured temperature on CPU cores is getting around 80 degrees Celsius and is going up and then tablet gets restart so I don't know if it is only the problem with battery maybe it's connected with CPU problems or other electrical problems on MotherBoard.
It's worth to mention, that I've charged the tab with charger from Moto X Style, that is Turbo Charger, with 3A, and the Tab S1 can load with 2A only.
https://youtu.be/APgivhY31ws
Here's the link to movie with Tab behaviour again, can you see it now?
Astania said:
Okay first of all very big thank you for your replies
my Galaxy Tab S 1 except strange reboots is also overheating when it has some tasks to do measured temperature on CPU cores is getting around 80 degrees Celsius and is going up and then tablet gets restart so I don't know if it is only the problem with battery maybe it's connected with CPU problems or other electrical problems on MotherBoard.
Click to expand...
Click to collapse
My tablet used to have a damaged main-board that used to overheat. However, the screen did not go blank when that happened. I actually got some kind of message that said that the tablet is overheating. This was fixed after I replaced the mainboard. You can certainly try it, but these things were not cheap when I did it.
Mine also started doing this last month now it wont power on but resets till the battery is dead.
Did you get it fixed?
Akopps said:
My tablet used to have a damaged main-board that used to overheat. However, the screen did not go blank when that happened. I actually got some kind of message that said that the tablet is overheating. This was fixed after I replaced the mainboard. You can certainly try it, but these things were not cheap when I did it.
Click to expand...
Click to collapse
I'm seeing random shutdowns with no warning popup on heat but the screen area where the motherboard is sure gets hot. I replaced the battery and same result. I looked at the battery connector and looks OK, seems tight but I didn't check with a magnifying glass. Where did you source your motherboard?
Also how has everyone elese resolved this? I see people citing the problem on this old thread but I'm curioius if you found a resolution.