Develop Bugs

Battery life severely reduced!

Please can I get some assistance, I cannot for the life of me figure out what has happened.
LeeDroid 3.3 latest.
I have gone from 48h standby to 14h. During use it's depleted in a matter of hours, it's incredibly low in relativity to what I'm used to.
I was on LeeDroid 3.0.2 previously and battery life was VERY long, I loved it - going back to this version doesn't help and the battery issue remains, and therefore it also remains on the newest build.
Previously I was running a bucket load of apps/games with normal 50% brightness, I have resorted to deleting apps/keeping tasks closed but to no avail. The Statistics for battery usage seem to look similar to how it used to be before, with display taking up a large chunk.
I tried the battery trick today but it hasn't helped. My phone has already gone to 98% (40m uptime) with screen turned off + SetCPU set at powersave/lowest mhz while screen is off.
I hope you can help, Thanks.

This does happen sometimes, not sure what causes it but a wipe and reflash sorts it out for me.

What kernel are you using? Have you made any recent changes before massive drain started happening?

Try monitor the current using current widget. If it's normal, around 1-4ma during standby, perhaps, your battery need calibrated. If it didn't resolve your problem, then, maybe the battery is dead.

ErOR22 said:
What kernel are you using? Have you made any recent changes before massive drain started happening?
Click to expand...
Click to collapse
I dont think this is the problem because when it happens to mine it just happens by itself after a few weeks of having the ROM installed with very few extra applications which I install immediately.

anyone know if the proximity sensor is classed under display? could be that thats stuck on. got any apps that use or used the proximity sensor? or maybe the touch screen is stuck on.
have you tried removing the SD card? see if its something on there.

Well I reinstalled Leedroid with the recommended rom and although the battery life is nowhere near what it was previously... its at a respectable 22h or so... enough to give me time to actually find a fix...
Theres no apps, nothing, just the rom and its apps so I will try it without SD card also, i dont understand how to check for proximity sensor though
Thanks

How can I track down my battery drain?

Leaving my OP in place, but I have rewritten the description with much more detail and pics here
http://forum.xda-developers.com/showthread.php?p=25401417#post25401417
I suggest skipping to there.
I am looking for general tips here. E.g., not asking you to diagnose my specific problem so much as give me ideas of what else to check or try.
Lately I have had unexplained (to me) battery drain. Yesterday I lost about 25 percent in an hour while the phone idled. It is not a constant thing, though. I can go an hour and loose 1 percent then loose massive amounts in the next hour.
Now, i have searched, but I have not found anything that applies to me.
I have:
Tried a different radio
Tried a different kernel
Reflashed my rom
Phone is entering deep sleep according to cpu spy
There are no unusual or excessive wake locks according to better battery stats
No apps are using a lot of battery.
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Ideas?

might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.

Zepius said:
might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.
Click to expand...
Click to collapse
beren28 said:
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Click to expand...
Click to collapse
So I don't think I can blame it on that.

Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2

can you give us screen shots of battery stats?

Herman76 said:
Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I do, and on reflection it is a possible culprit since I added it recently.
Didn't occur to me since it was producing no wakelocks and the battery stats did not showing as using much battery.
I shall turn it off for a bit and see if that helps. (unless there is some other way to test if it is the problem first.) I am off to the search button!

Zepius said:
can you give us screen shots of battery stats?
Click to expand...
Click to collapse
This is from yesterday when i set it down unused for about 90 minutes. The amount of wakes seems liek a lot, but it is similar to what i see when i have far far less drain, so I don't think that is the problem. I didn't get the app list screen, but out should screen as the only major drain with about 2 minutes.
I know it is shows poor signal strength, so immediately after that shot I put it in airplane mode, turned of sync, and rebooted. The battery continued to drain and graph had the exact same slope under those conditions. (Forget to get a pic though.)
Sent from my jitterbug using tapatalk.

System panel paid version with monitoring enabled is the best for tracking apps using CPU.

OK, still working on this.
To recap:
When the screen is off, and no apps are running I sometimes get inexplicable battery drain. This is occurring under conditions when I should be experiencing little or no drain at all. I say this becuase:
The screen is of and no bakground apps are running
the phone is NOT awake and IS entering deep sleep (as confirmed by cpuspy)
there are no unusual kernel or partial wake locks
there are no apps listed as using unexpected ammounts of battery
This is not a universal problem. The phone *often* behaves as expected. I can leave the phone off for an hour and see a 1% or 2% drain, and I am happy with that. However, sometimes, randomly, it goes nuts on my.
This graph from a few weeks ago shows what I mean. Look in the green box. The phone is sleeping, and the screen is off. The graph starts as a flatline, then, all of a sudden, it begins to drop precipitously.
Here is a graph that shows the battery dropping at the same rate whether the phone is awake or sleeping:
I have gone the following to try and narrow the problem down:
Done a completely fresh install of my Rom including a system wipe.
Tried two kernels (the aokp default and several relases of Franco's
Tried a different radio
Activated and installed a new sim card
I have come to suspect that the problem is network related. When the problem starts, sometimes going into airplane mode and back and/or toggling 2g only temporarily fixes the problem.
I suspect that something is happening with my connection to T-Mobile that keeps the network running and draining power. This is pure speculation, but it is all I can think of.
I installed juice defender (which I had not been previously running) and noticed the that, sometimes, it didn't turn of data when it should have. I also noticed the following two things happen:
I do not believe it is a rom problem, since if so, someone else would be reporting this. It might be an app problem, but if so the app is draining battery without a wake lock and while the phone is in deep sleep.
It is not exchange (as was suggested in this thread) since it continues when I ev my exchange account.
I have no idea what else to do or try.
Since it happens at random and takes a while to identify, uninstalling one app at a time to test for that could easily take months to narrow down a misbehaving app.
I know it is not a hardware issue since last month I got this:
That was with AOKP and Franco (earlier versions obviously)
I have google searched till my fingers bleed.
I am a long way form being an expert, and I suspect I may have overlooked something obvious.
Please, any thoughts??

Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.

1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time

derekwilkinson said:
1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time
Click to expand...
Click to collapse
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Here is that chart for last night.
I had about 1 hour and 30 minutes screen on time with 65% left when I went to bed. When I woke up, phone was dead.

RogerPodacter said:
Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.
Click to expand...
Click to collapse
Mine often does that. But sometimes it doesn't. It is the fact that it happens seemingly at random that makes it so annoying and hard to track down.

I would replace the battery
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.

arw01 said:
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.
Click to expand...
Click to collapse
The thought has occurred to me, but unfortunately, no, I don't have a friend I can swap with. And really, since I have had the phone less than 3 months, the battery *shouldn't* be bad, but yeah, defective products happen.
If I cannot find any other cause I will likely order a new battery and see if that fixes it.

beren28 said:
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Click to expand...
Click to collapse
1. yes battery calibration does make a difference.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"? Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ

derekwilkinson said:
1. yes battery calibration does make a difference.
Click to expand...
Click to collapse
You are incorrect. But, in any case, I DID calibrate the battery just to cover bases in the case that I was wrong.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"?
Click to expand...
Click to collapse
We'll of course it can. That is kinda my point. If I go one app at a time waiting for it to "run a process at random" I am talking literally MONTHS of testing. I would have to wait many hours, if not days after installing or uninstalling an app to be sure whether or not it made a difference, then move on the the next. This is simply not an option. I started this thread in hopes that a realistic and doable solution might exist that I was unaware of.
Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ
Click to expand...
Click to collapse
I am asking because there may be a solution that I am unaware of that doesn't require me to put my entire life on hold for months. It is possible that there is no such solution, but I asked in case there was one.
Sorry to have put you out so much.

You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.

skadebo said:
You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
when i did a complete quote and re flash i did not setup the exchange account, but the issue continued.
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.
Click to expand...
Click to collapse
I'll check that out. Thanks.
Sent from my jitterbug using tapatalk.
Click to expand...
Click to collapse
Click to expand...
Click to collapse

My battery also drains at a rate similar to yours however I'm on the CDMA version. Hopefully you can figure out what's going on with yours.

CM 11 nightly - Phone occasionally crashing

My Galaxy Nexus is running CM11 since day one and before that I was running PlayfulGod's Unnofficial port.
Every couple of days the phone simply crashes/hangs. It happened at night few hours after I last touched it, it happened during the day while simply laying at sleep in the desk and even while using it. The phone simply stops responding.
If it crashes while sleeping the phone appears to be dead, while active, the screen will remain frozen until the battery is dead (guessing... didn't really wait until the battery ran out).
Removing the battery and re-inserting and the phone will work, typically showing a big hit on the battery level.
I assume there's some CPU activity going on because I can feel the area near the camera warmer (not hot) than the rest.
I opened this topic to follow the issue raised on this post:
VuDuCuRSe said:
I just had the same problem! (I'm using the official Jan05)
It happened a few times on the last days. The phone seems to be off, but in complete dark I can see a bit of back light. Once happened during sleep and it even registered screen on activity (weird).
Never really tried connecting it to the computer, always removed the battery right away. =(
Click to expand...
Click to collapse
At least amrs seems to be having this issue.
amrs said:
My phone had a hang yesterday and again today. Running 0104 nightly. Just a black screen with a faint backlight, no reaction to buttons or anything.
Today I managed to get some info finally as to what happens. Turns out the phone didn't crash, I was able to get in via adb, so dmesg and logcat attached. Also I noticed from the process list system_server was a zombie. As I understand it, system_server is a fairly major part of Android so that's probably a problem...
Click to expand...
Click to collapse
Maybe with more reports we may understand what is causing this crashes.

VuDuCuRSe said:
My Galaxy Nexus is running CM11 since day one and before that I was running PlayfulGod's Unnofficial port.
At least amrs seems to be having this issue.
Click to expand...
Click to collapse
I didn't have any problems for a few days, after installing 0112 nightly. Turns out I didn't have any deep sleep either according to Better Battery Stats. A reboot fixed that but then I got a crash quickly again. I realized weather info was odd in the lock screen so locked and tried to unlock and nothing. Couldn't even get in with adb shell this time.
So I guess deep sleep has something to do with this. I've been using the hotplug CPU governor most recently but I think this happened with interactive too.

I'm all stock... kernel, CPU/GPU settings and so on... so I guess that it shouldn't be related to that.
Do you know of any good debugging app to eventually save some sort of evidence of the crash?
I tried plugging the USB cable on the last crash but the computer/adb didn't detect the phone.

[Q] Any ROM battery drain pain HOX

Me and my partner both have HTC ONE x's, Endeavouru, round a similar age, but her phone recently started draining battery.
Both running ARHD, with the same kernels. First I checked if apps were responsible, wiped and reflashed the ROM and kernel both.
This did not work, so then checked battery health with *#*#4636#*#* - showing the battery was in good health, but then replaced the battery anyway to eliminate any possibility of this being the culprit.
Now it's still giving massive drain - a charge up to 100% will last up to 5 hours of standby, with only mobile network activity turned on, all other radios off.
Been throughout the forums and other websites looking for any solutions to this problem but not striking any luck. Tried resetting the radio, changing it to LTE (Not even available where we are), and back etc, as one thread suggested, turned radio completely off and back on. Tried super cleaning the system before reflashing the ROM, tried a different kernel, an AOSP ROM, and still no luck.
It just all of a sudden started to do it, similar conditions to my phone, which makes it harder to pinpoint.
Any new idea's to bring to the table, open to any.
nb: Posted in wrong forum earlier, my bad.

goentillsundown said:
Me and my partner both have HTC ONE x's, Endeavouru, round a similar age, but her phone recently started draining battery.
Both running ARHD, with the same kernels. First I checked if apps were responsible, wiped and reflashed the ROM and kernel both.
This did not work, so then checked battery health with *#*#4636#*#* - showing the battery was in good health, but then replaced the battery anyway to eliminate any possibility of this being the culprit.
Now it's still giving massive drain - a charge up to 100% will last up to 5 hours of standby, with only mobile network activity turned on, all other radios off.
Been throughout the forums and other websites looking for any solutions to this problem but not striking any luck. Tried resetting the radio, changing it to LTE (Not even available where we are), and back etc, as one thread suggested, turned radio completely off and back on. Tried super cleaning the system before reflashing the ROM, tried a different kernel, an AOSP ROM, and still no luck.
It just all of a sudden started to do it, similar conditions to my phone, which makes it harder to pinpoint.
Any new idea's to bring to the table, open to any.
nb: Posted in wrong forum earlier, my bad.
Click to expand...
Click to collapse
try downloading wakelock detector and seeing what keeps the phone awake and then uninstalling/reducing its privileges
the privileges part can be done with xposed and a module called appops

suljo94 said:
try downloading wakelock detector and seeing what keeps the phone awake and then uninstalling/reducing its privileges
the privileges part can be done with xposed and a module called appops
Click to expand...
Click to collapse
Well an update to this thread...
Went to install wakelock on the phone after having it turned off for a few days, the battery was drained and now every time I try charging, regardless of what I use re ac/computer/original/aftermarket charging equipment, all it does is heat up to about 58 degrees C and stop charging - with phone off or on.
Sucks as it seems to be a manufacturing fault, but since I've rooted it, and purchased 2nd hand, looks like one for the rubbish bin

goentillsundown said:
Well an update to this thread...
Went to install wakelock on the phone after having it turned off for a few days, the battery was drained and now every time I try charging, regardless of what I use re ac/computer/original/aftermarket charging equipment, all it does is heat up to about 58 degrees C and stop charging - with phone off or on.
Sucks as it seems to be a manufacturing fault, but since I've rooted it, and purchased 2nd hand, looks like one for the rubbish bin
Click to expand...
Click to collapse
Looks like faulty battery, try change the battery with new one and see what will happend

goentillsundown said:
Well an update to this thread...
Went to install wakelock on the phone after having it turned off for a few days, the battery was drained and now every time I try charging, regardless of what I use re ac/computer/original/aftermarket charging equipment, all it does is heat up to about 58 degrees C and stop charging - with phone off or on.
Sucks as it seems to be a manufacturing fault, but since I've rooted it, and purchased 2nd hand, looks like one for the rubbish bin
Click to expand...
Click to collapse
check if your cpu is stuck at 100% or 1.5 ghz in trickstermod and could you post a screenshot of wakelock detector?
Thant said:
Looks like faulty battery, try change the battery with new one and see what will happend
Click to expand...
Click to collapse
in the OP he said that he did that already

suljo94 said:
check if your cpu is stuck at 100% or 1.5 ghz in trickstermod and could you post a screenshot of wakelock detector?
in the OP he said that he did that already
Click to expand...
Click to collapse
Sorry I didn't see that. Then I am 80% sure the light sensor not working or working wrong. Must to check this. I am sure it is some of the sensors

Thant said:
Sorry I didn't see that. Then I am 80% sure the light sensor not working or working wrong. Must to check this. I am sure it is some of the sensors
Click to expand...
Click to collapse
Surely if it's the light sensor it would be irrelevant if it was turned off or on though, same with the CPU. I'm going to spend some time getting power into it today, charge, then put in freezer to cool it, and repeat.
Once some power is into it I'll start with suggestions, one at a time, and get some screen shots up, and logs of the current drain.
Thanks for the help so far, would be good to get it going again, instead of having a $350 paper weight.

An update:
Changed the recovery from Philz recovery to an older CWM recovery program, and now possibly just through coincidence the battery isn't super heating to the point it needs to live in the freezer to charge.
I have restored to stock ROM, and have a couple of pictures of the battery history, which are neither here nor there, apologies as I wiped a lot of things off, including my WLD pictures from the ARHD ROM.
I purchased trickstermod and had a look into the CPU settings, and nothing seemed out of the ordinary. Also turned on the dev options of graphic CPU usage on the homescreen - not really showing unusual signs of anything. About to flash the original recovery on and email HTC to see if they might feel sorry enough to accept it as a straight manufacturing defect, without evidence of where we purchased it (as it was a second hand phone off the net).

subscribing to this thread - I have the exact same issue. I have installed CM11 and ParanoidAndroid. Torched and Bubba kernel... turned off lots of stuff.
I have whatsapp, soundcloud and facebook as the only background running apps. not sure what's the issue

sensors drain battery
Hello!
I also have a similiar issue.
I noticed, after a while, that my phone keeps dying under 16-18 hrs on idle from full charge.
I thought it1s the battery, since my HOX is 2 years old. Someone suggested, to try some battery monitoring, so i got the battery monitoring widget, after for like 3rd time, the phone turned off overnight.
The problem, is the Light, and the acceleration sensors... they won1t let the phone go to sleep.
I tried turning off locations, and such, also auto rotation, and my back light was never on auto. it is set around 30%
Still, these sensors run, and consume battery like crazy. This started about 2 weeks ago.
I have a stock rom. not the original, since i thought flashing a custom rom might solve this, so i tried ViperX 4.1.1, the problem was still there.
After that, i reflashed an untouched original HTC JB rom.got the latest OTA update, and the problem is still there...
I don't have any apps running in the background, that should require these sensors to run. i always clear multitasking also.
Have Wifi on, but that barely consumes anything.
Any idea, i know this started on Gingerbread, and was supposedly fixed in ICS, but it's still happening to some ppl.
Any help would be appreciated!

Laccee said:
Hello!
I also have a similiar issue.
I noticed, after a while, that my phone keeps dying under 16-18 hrs on idle from full charge.
I thought it1s the battery, since my HOX is 2 years old. Someone suggested, to try some battery monitoring, so i got the battery monitoring widget, after for like 3rd time, the phone turned off overnight.
The problem, is the Light, and the acceleration sensors... they won1t let the phone go to sleep.
I tried turning off locations, and such, also auto rotation, and my back light was never on auto. it is set around 30%
Still, these sensors run, and consume battery like crazy. This started about 2 weeks ago.
I have a stock rom. not the original, since i thought flashing a custom rom might solve this, so i tried ViperX 4.1.1, the problem was still there.
After that, i reflashed an untouched original HTC JB rom.got the latest OTA update, and the problem is still there...
I don't have any apps running in the background, that should require these sensors to run. i always clear multitasking also.
Have Wifi on, but that barely consumes anything.
Any idea, i know this started on Gingerbread, and was supposedly fixed in ICS, but it's still happening to some ppl.
Any help would be appreciated!
Click to expand...
Click to collapse
I have checked all the sensors in the testing menu by dialing *#*#3424#*#* and they all turn off and on as required properly. I noticed yesterday that I've actually burnt out the charging system as it has got too hot at one point, so no use pursuing anymore. I will stick with my HOX until it too breaks in some way. Received an email back from HTC saying "Not under warranty, not our problem" after asking if they had had any phones with similar issues pass through.

[Q] Reboot problem when not charging

I have had my P607T for a couple of months now. It is box stock no changes. Over the last few weeks I have noticed that it will reboot while using various apps. (Fliipboard, Chrome, Clash of Clans, Papyrus...) They don't seem to all be heavy graphics or network. The only symptom is that the screen starts to flash then "bang" reboot (and trouble rebooting when not plugged in). It would not be too annoying except that it will loose wifi settings and the wallpaper. I have tried different wallpapers (saw a thread blaming the live wallpapers ) Unloaded some apps (had another phone issue with FitBit and HTC blink on my N4). I stay away from CoC (my base has been raided so often now ...). Any thoughts? I am really trying to like this tablet more than my old ASUS Transformer but this reboot and reset wifi is a pain.
Thanks in Advance,
marka

manderson8898 said:
I have had my P607T for a couple of months now. It is box stock no changes. Over the last few weeks I have noticed that it will reboot while using various apps. (Fliipboard, Chrome, Clash of Clans, Papyrus...) They don't seem to all be heavy graphics or network. The only symptom is that the screen starts to flash then "bang" reboot (and trouble rebooting when not plugged in). It would not be too annoying except that it will loose wifi settings and the wallpaper. I have tried different wallpapers (saw a thread blaming the live wallpapers ) Unloaded some apps (had another phone issue with FitBit and HTC blink on my N4). I stay away from CoC (my base has been raided so often now ...). Any thoughts? I am really trying to like this tablet more than my old ASUS Transformer but this reboot and reset wifi is a pain.
Thanks in Advance,
marka
Click to expand...
Click to collapse
Have you tried a factory reset? I'd make tmobile replace it

was hoping to avoid the reset button. Tried it and still giving trouble it rebooted while restoring apps. I bought the tablet on ebay, I don't think TMO will take it back. oh well I'll keep poking about.
thanks,

I experience exactly the same problem since the update to 4.4.2 (kitkat): The screen starts to flash, suddenly the tablet reboots. I tried a factory reset multiple times, also removed the SD card and reflashed the ROM via KIES, nothing helped so far. Also, even when plugged into the outlet for several hours the tablet didn't charge at all (I think it stopped charging when the screen saver kicks in).
A couple of weeks ago I filed a RMA request (my dealer sent the tablet to Samsung), yesterday I got it back. It was charged at 60% and when I plugged it to the outlet it actually charged (even when the screen went off). But after about one hour (the battery was still > 60%) the flashing reappeared and after a while the tablet started to reboot again. Interestingly the battery now showed only 2% and the low battery warning appeared.
I think the problem might occur only when the battery runs low (which happens very fast as something seems to drain the battery), while android still shows a much higher battery level . Never experienced these problems when the tablet was plugged in so far.

Wall-E said:
I experience exactly the same problem since the update to 4.4.2 (kitkat): The screen starts to flash, suddenly the tablet reboots. I tried a factory reset multiple times, also removed the SD card and reflashed the ROM via KIES, nothing helped so far. Also, even when plugged into the outlet for several hours the tablet didn't charge at all (I think it stopped charging when the screen saver kicks in).
A couple of weeks ago I filed a RMA request (my dealer sent the tablet to Samsung), yesterday I got it back. It was charged at 60% and when I plugged it to the outlet it actually charged (even when the screen went off). But after about one hour (the battery was still > 60%) the flashing reappeared and after a while the tablet started to reboot again. Interestingly the battery now showed only 2% and the low battery warning appeared.
I think the problem might occur only when the battery runs low (which happens very fast as something seems to drain the battery), while android still shows a much higher battery level . Never experienced these problems when the tablet was plugged in so far.
Click to expand...
Click to collapse
At least I don't feel so alone with this issue... I have been paying more attention to my build up process since the factory reset. I found, the other night quite by accident, that when I logged in to Twitter the reboot started. So for the next few days I have left Twitter off the machine and it is doing better. I suspect that something is hitting the power drain (like you mention) and that causes it to have problems. In that thought I have also turned off the power saving mode and auto screen now just to add to the list of things I am avoiding.
Rgds,

manderson8898 said:
At least I don't feel so alone with this issue... I have been paying more attention to my build up process since the factory reset. I found, the other night quite by accident, that when I logged in to Twitter the reboot started. So for the next few days I have left Twitter off the machine and it is doing better. I suspect that something is hitting the power drain (like you mention) and that causes it to have problems. In that thought I have also turned off the power saving mode and auto screen now just to add to the list of things I am avoiding.
Rgds,
Click to expand...
Click to collapse
Have you considered rooting and using root apps to stop the apps from being able to do such things?