Develop Bugs

The cause of Strange battery behavior + Random Restarts.

Hi, I just bought a used galaxy tab s 10.5 and the battery jump from 20 to 99% in 20 minutes when charging . I started using it at 100% and it shuted down for low battery in 30minutes and I power it on again a it said 75%. How do you thinks is going on with the tablet? Thanks and sorry for my bad english.

Do you know if it's rooted and has a custom recovery. Clear cache and fix permissions in recovery mode

No root
It is not rooted and it have stock recovery. Is there an app to reset battery stats?

MLopez14 said:
It is not rooted and it have stock recovery. Is there an app to reset battery stats?
Click to expand...
Click to collapse
try booting stock recovery and do a factory reset.if that don't work than look into rooting it and TWRP so you'll have the option to flash something else or clear the cache and fix permissions

done
I did the factory reset and the permissions fix thrught TWRP but the battery still crazy. What more can I do?

I got the tablet down to 0% battery, to the point that it wouldn't turn on.
Took off the back cover using prying tools and then disconnected the battery, power cycled thrice by holding and releasing power button and then reconnected the battery and let it charge overnight to 100% and now battery life is amazing, don't have those drastic drops anymore.
There are no warranty stickers torn etc involved with doing this so you don't have to worry about voiding it. Just take your time and start at the microsd slot, open the hatch and work your way around slowly. Its difficult first time around because there is adhesive glue as well as clips holding it down. But still very doable without damaging anything.

Here is a link to a battery calibrator for root users
https://play.google.com/store/apps/details?id=com.vitula.batterycalibration
There are other calibration apps
Definitely other options before taking it apart [emoji111]

..
I tried with the battery calibration app and nothing. I leave you a screenshot , thats is WHITHOUT any charge, when it shuted out I just turn it on again. What is indexservice?

OK after ready the links below I believe a debloated ROM could solve your problem
https://www.google.com/search?q=wha...google&sourceid=chrome-mobile&espv=1&ie=UTF-8
List of Roms
[emoji652]
http://forum.xda-developers.com/galaxy-tab-s/development

I will try a debloated rom because son process called index service is draining the 60% of my battery, but is rare that the tablet shuted down and when I tried to turn in on and it shuted down immediately for low battery, but and enter in recovery mode and leave it on with max brightness and it stay awake for 4 hours!! Even when twrp said that is has only 1%.

MLopez14 said:
I will try a debloated rom because son process called index service is draining the 60% of my battery, but is rare that the tablet shuted down and when I tried to turn in on and it shuted down immediately for low battery, but and enter in recovery mode and leave it on with max brightness and it stay awake for 4 hours!! Even when twrp said that is has only 1%.
Click to expand...
Click to collapse
Post back to let us know it is after a ROM flash

Can you post a full screenshot of your battery settings. You just posted the graph. Not sure about the index service, but knox drains battery too.

Had the same issue crop up on mine. Did the the battery 0% drain then recharge a few times. And factory format. Now it just randomly keeps restarting (even when on charge now). Called Samsung and they have sent a pack to post it to them to sort I hope.

Now with the debloated rom the crazy battery drops have stop but I'm having random restarts. What's is happening now?

I know it's a lot of work and getting frustrating but let's try Odin back to stock .
http://forum.xda-developers.com/showthread.php?t=2800372

Let's try back to stock. Thanks a lot for taking time to help me.

MLopez14 said:
Let's try back to stock. Thanks a lot for taking time to help me.
Click to expand...
Click to collapse
I'm on here all the time and when I get my devices the way I want them I just browse around trying to help with what I can .no problem and your welcome

...
Now with stock rom I still having random restarts and battery drops. I dont know what more to do and I dont have warranty.

I leave it all night on plugged in the charger and it didn't restart but when I started using it, it freezes up and restart.

Now it sounds like a kernel issue .I really dislike that cortex chip to

[Q] Tab S 8.4 wifi only TM700 issue (my fat fingering)

Tried to hard reset to see if would help battery issue, turning itself off then on, fluctuating battery % left, etc.
Fat fingered vol control down instead of up. Sitting for hours with screen saying downloading... don't turn off.
Can't get it to do anything.
Is it a paper weight now, or can it be recovered somehow? Can I put a stock tm700 rom on a card and get ti to do something? Or is there a way to root and put new rom on?
Any and all help appreciated. I am an old retired guy and not up on all these tricks with tablets and phones. Did read where hard reset seemed to fix someones battery issues. and found how to do the reset. Unfortunately, I didn't get it right.

Wait so your in download mode? Cant understand the fat fingered part.. To exit download mode just hold home, vol down and home at the same time for 1 minute. It should either tun off or reboot. Hope this helps.

Thanks, that turned it off. Needs recharge now. Battery goes all over the place; 97% then 65%, the 75%, then 15%. Need to call Samsung and send it in.

Yep the battery most likely is deffective. Glad it helped!

Phone just died on me

My phone was around 40% charged and I turned it off by the on/off button. It then failed to turn back on and even when I connect a charger now there is no charging light,nor can I turn it on by the button whilst connected to the charger.
I had installed a new firmware yesterday, Lollipop 5, it's been running great and I was still configuring it when this happened.
Please can anyone help with this and give me any ideas what to do.
Thanks in advance.

potsykate said:
My phone was around 40% charged and I turned it off by the on/off button. It then failed to turn back on and even when I connect a charger now there is no charging light,nor can I turn it on by the button whilst connected to the charger.
I had installed a new firmware yesterday, Lollipop 5, it's been running great and I was still configuring it when this happened.
Please can anyone help with this and give me any ideas what to do.
Thanks in advance.
Click to expand...
Click to collapse
The standard routine is to plug the phone into the wall charger
wait 15 min, then hold volume up and the power button for around 10 seconds. this is the equivalent of a battery pull. the phone should boot up now

Thanks for that,I'll give it a go and let you know how I get on.
What causes this issue with the phone. Going from around 40% to absolutely dead just by turning it off? It's a very strange thing.

Worked fine,all back up and running now.
Cheers.

[Q] Battery empty over night while switched off

I had this 2 times this week. I switch it (SM-T705) off in the evening at 100%. On the next day battery completely drained.
On the 1st time (battery=0%) I even could not switch it on - had to press POWER+VOLDOWN+HOME. The 2nd time it started normal (8% rest).
Battery monitor app said, no data for 12 hours (during the night = as it was switched off)
I use SkyHigh ROM+Kernel (4.4), Xposed, Wanam (incl. soft reboot menue,...), Greenify. As a first measure I uninstalled Greenify and disabled Wanam.
I found several post on the web regarding this issue, but no real conclusion. Any idea to get closer to the problem would be very welcome !

Have you tried Watchdog, it will sound an alarm if any apps use above a certain cpu usage, this will find any power sucking apps, go in to the settings and set it to monitor all phone processes.
https://play.google.com/store/apps/details?id=com.zomut.watchdoglite&hl=en
Have a look at the thread below, and install the latest version of the app, this will alow you to see what apps or process are keeping your tablet from going into power saving deep sleep.
http://forum.xda-developers.com/showthread.php?t=1179809&page=2901
John.

Greenify doesn't really do anything that android doesn't already do itself. Its just another app running in the background. How are you powering off the tablet?

gggg said:
I had this 2 times this week. I switch it (SM-T705) off in the evening at 100%. On the next day battery completely drained.
On the 1st time (battery=0%) I even could not switch it on - had to press POWER+VOLDOWN+HOME. The 2nd time it started normal (8% rest).
Battery monitor app said, no data for 12 hours (during the night = as it was switched off)
I use SkyHigh ROM+Kernel (4.4), Xposed, Wanam (incl. soft reboot menue,...), Greenify. As a first measure I uninstalled Greenify and disabled Wanam.
I found several post on the web regarding this issue, but no real conclusion. Any idea to get closer to the problem would be very welcome !
Click to expand...
Click to collapse
This is sure caused by kernal wake locks.
Why don't you try "better battery status" app and find out what it is draining your battery juice and
Read this post
http://forum.xda-developers.com/showthread.php?t=1827676
It has the reasons and remedies for your problem. Good luck.

THX for your replies, but it is about DRAINING BAT during POWER OFF

gggg said:
THX for your replies, but it is about DRAINING BAT during POWER OFF
Click to expand...
Click to collapse
Ouch..POWER OFF ! I didn't read it quite well. That makes me a bad reader. ;D
OK. Will let you know when I get info's about your problem.
gggg said:
THX for your replies, but it is about DRAINING BAT during POWER OFF
Click to expand...
Click to collapse
Some times I face a similar problem like when you reboot your phone battery reading suddenly drops from say 80%-62%.
And every time when it happens i do this...
#Switch it OFF
#Connect it to the charger cable and wait for the reading to show. You will see the actual reading. (some value closer to 80% )
#switch it ON without disconnecting charger cable.
and I get this funny smile on my face
Try it and let me know if it helps.

Thread cleaned, guys lets please keep things on topic.
Heisenberg
XDA Moderator

I'm having a similar (?Battery?) Problem
I didn't use my Tab S for a couple days (unplugged but OFF) and when I went to go use it...... it was (& still IS) totally "DEAD". It hasn't responded to anything I've tried so far.......
~~ Hold [POWER ] button for over a min
~~ Hold [POWER] & [VOL DOWN] together (This worked one OTHER time, not THIS time though)
~~ Hold [POWER] + [VOL-UP] + [HOME] together (Like the "Wipe Cache Partition" sequence)
I heard that there is somekind of "glitch", that if the battery(ies) drop below 3V, it won't take a charge anylonger..... well ACTUALLY, it won't RECEIVE a charge from the Tablet anymore.
(From this YouTube Video....)
"Samsung Galaxy Tab S 10.5 doesn't turn on fix" ~ Chester Lowrey
He pulled off the back and "tapped into" the battery connections with a decently rigged up charger. Charged it up past the 3V "min level" and it started working again.
Has ANYBODY heard of this issue or problem??? And IF SO....... any other SOLUTIONS?? (I HAVE searched but haven't found anything about this in XDA......YET)
My Tab is totally DEAD and I really want to avoid sending it in for warranty repairs. Any help would be MUCH APPRECIATED!
Thanks, Joe (This is my first post here so I HOPE I'm in the right "place")

THEJOE29 said:
I didn't use my Tab S for a couple days (unplugged but OFF) and when I went to go use it...... it was (& still IS) totally "DEAD". It hasn't responded to anything I've tried so far.......
~~ Hold [POWER ] button for over a min
~~ Hold [POWER] & [VOL DOWN] together (This worked one OTHER time, not THIS time though)
~~ Hold [POWER] + [VOL-UP] + [HOME] together (Like the "Wipe Cache Partition" sequence)
I heard that there is somekind of "glitch", that if the battery(ies) drop below 3V, it won't take a charge anylonger..... well ACTUALLY, it won't RECEIVE a charge from the Tablet anymore.
(From this YouTube Video....)
"Samsung Galaxy Tab S 10.5 doesn't turn on fix" ~ Chester Lowrey
He pulled off the back and "tapped into" the battery connections with a decently rigged up charger. Charged it up past the 3V "min level" and it started working again.
Has ANYBODY heard of this issue or problem??? And IF SO....... any other SOLUTIONS?? (I HAVE searched but haven't found anything about this in XDA......YET)
My Tab is totally DEAD and I really want to avoid sending it in for warranty repairs. Any help would be MUCH APPRECIATED!
Thanks, Joe (This is my first post here so I HOPE I'm in the right "place")
Click to expand...
Click to collapse
You're in the wrong section, you need to go and ask in the Tab S section.

Heisenberg said:
You're in the wrong section, you need to go and ask in the Tab S section.
Click to expand...
Click to collapse
Oh...... I thought this WAS the Tab S section....(Q&A, Help & Troubleshooting too)
Below is the "heading" that was at the top of the page......
Home —> Samsung Galaxy Tab S —> Galaxy Tab S Q&A, Help & Troubleshooting —> [Q] Battery empty over night while switched off by gggg
I'm not trying to be "argumentative" ...... I just want to make sure I'm understanding you correctly.

THEJOE29 said:
Oh...... I thought this WAS the Tab S section....(Q&A, Help & Troubleshooting too)
Below is the "heading" that was at the top of the page......
Home —> Samsung Galaxy Tab S —> Galaxy Tab S Q&A, Help & Troubleshooting —> [Q] Battery empty over night while switched off by gggg
I'm not trying to be "argumentative" ...... I just want to make sure I'm understanding you correctly.
Click to expand...
Click to collapse
Whooooooops, that was a huge derp on my part! Dunno what I was thinking there, sorry.

The battery protection might have kicked-in it disconnects the battery when the battery voltage drop too low, normally between 2.5-3volts per cell, and you need an charger that can reset the battery to make it work again, I dont know if Samsung has some sort of procedure to do this, I have heard of another Tab S owner who had an dead tablet like this, he took it to an phone/tablet repair shop and he says they connected an box to the tablet and it started straight away.
Have you tried the procedure below, it is slightley different to what you have tried before, if it does not work, try connecting the Samsung charger and try again.
1) connect the tab to PC
2) press Home, Vol Down and Power simultaneously up to a screen appears;
3) press Vol Down to cancel and reboot the tablet.
Also read the link below, and give the bump charging a go.
http://alveraphoto.blogspot.co.uk/2014/04/asus-transformer-not-changing.html
John.
THEJOE29 said:
I didn't use my Tab S for a couple days (unplugged but OFF) and when I went to go use it...... it was (& still IS) totally "DEAD". It hasn't responded to anything I've tried so far.......
~~ Hold [POWER ] button for over a min
~~ Hold [POWER] & [VOL DOWN] together (This worked one OTHER time, not THIS time though)
~~ Hold [POWER] + [VOL-UP] + [HOME] together (Like the "Wipe Cache Partition" sequence)
I heard that there is somekind of "glitch", that if the battery(ies) drop below 3V, it won't take a charge anylonger..... well ACTUALLY, it won't RECEIVE a charge from the Tablet anymore.
(From this YouTube Video....)
"Samsung Galaxy Tab S 10.5 doesn't turn on fix" ~ Chester Lowrey
He pulled off the back and "tapped into" the battery connections with a decently rigged up charger. Charged it up past the 3V "min level" and it started working again.
Has ANYBODY heard of this issue or problem??? And IF SO....... any other SOLUTIONS?? (I HAVE searched but haven't found anything about this in XDA......YET)
My Tab is totally DEAD and I really want to avoid sending it in for warranty repairs. Any help would be MUCH APPRECIATED!
Thanks, Joe (This is my first post here so I HOPE I'm in the right "place")
Click to expand...
Click to collapse

I had a similar problem were my battery from a full charge would last about 30 mins,it done this quit a lot,took it back to PC World they sent it back to Samsung who said the battery was faulty and replaced it,only had it back a week and after only one charge this new battery is doing the same thing,it will not last more the 45mins from a full charge,it is going back to PC World on Monday.Cheers Longlegs

Heisenberg said:
Whooooooops, that was a huge derp on my part! Dunno what I was thinking there, sorry.
Click to expand...
Click to collapse
No Big man.

Long45Legs52 said:
I had a similar problem were my battery from a full charge would last about 30 mins,it done this quit a lot,took it back to PC World they sent it back to Samsung who said the battery was faulty and replaced it,only had it back a week and after only one charge this new battery is doing the same thing,it will not last more the 45mins from a full charge,it is going back to PC World on Monday.Cheers Longlegs
Click to expand...
Click to collapse
I read a few posts (I think HERE) talking about bad/loose battery CONNECTORS.

I've had the same problem. Heavy drain, battery discharged when power off, slow or fast charging time. This morning,when i tried to disconnect the battery, the connector just came away from the board!! It is really really bad soldered, resoldered by myself now seems to be working! Before soldering 50%batt,after 60%,used a lot today with chrome,youtube,twitter,display on just to check,now i'm with 22%
Edit : After about 9hours from repair it's fully discharged. No drain when in idle

SMW3 wont start

Hey all. I made a recovery flash, and for some reason im not able to start the device. Is very hot, like chargin (but it's not), I press hole button and at 8 seg of press ir vibrate 1 time, ando do nothing more...
My computer dont recognize it so i cant adb it

SOLVED.
Seems there is a bug. When you power off and connect the watch to charge it, it starts the charging screen. If you start the device connected and with this screen, enter in a loop black screen draining battery. Until the battery is not at 0% the watch don't start.

I can confirm there is some kind of bug when you are charging your SW3, I did as you said and worked for me. now my SW3 is working again! thanks!

mdomfu said:
SOLVED.
Seems there is a bug. When you power off and connect the watch to charge it, it starts the charging screen. If you start the device connected and with this screen, enter in a loop black screen draining battery. Until the battery is not at 0% the watch don't start.
Click to expand...
Click to collapse
Have same problem, but do i understood corectly: i just need to leave swr50 for some time (how long?) till battery drains to 0% ? how will i know that? and what to do next? charge it? Thanks.

amdas said:
Have same problem, but do i understood corectly: i just need to leave swr50 for some time (how long?) till battery drains to 0% ? how will i know that? and what to do next? charge it? Thanks.
Click to expand...
Click to collapse
After ~2 hours turned watch on and it started like nothing happened before. Battery was empty ~1%, then plugged to charge and now works. So i hope problem solved... :/