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galaxy s 2 acting strangely, battery drain and randomly going into driving mode

I got my sgs2 about a month ago and its been like a dream, battery lasts for a long time phone runs ultra smoothly no glitches and nothing weird has been happening, but these last few days its just been really weird.
1) it started randomly going into driving mode, i dont even know how to activate it or what it does, but i think its draining my battery
2)When i was watching a tv show on my phone it thought that there was an hdmi cable connected and wouldnt let me hear anything through my headphones. i exited it several times but it still though there was a cable connected. Then i went straight home and quit it from the task manager and it worked with the headphines but that might have been a coincidence.
3)When i connect the charger it takes a while to realize that its charging and sometimes stops charging and says that the battery is too hot or too cold but when i feel the phone it feels completely normal.
4)When i connect the usb cable, other than taking a while to realize that its connected to a charger it doesnt realize that its a usb so i cant transfer files with my computer which i do often
5)I pressed home before and it took me to some sort of clock which i imagine is for a dock but i have no such thing
6) Even after using the phone for a while and using several apps the android os has used 59% of my battery, when usually its the display that uses about 30 or 40%
none of these things had happened before and now they randomly started all at once, i havent downloaded any shady apps so i doubt its malware
any ideas?
thanks

Are you using a stock firmware or custom?
Have you tried resetting back to factory default?

camiloorozco said:
I got my sgs2 about a month ago and its been like a dream, battery lasts for a long time phone runs ultra smoothly no glitches and nothing weird has been happening, but these last few days its just been really weird.
1) it started randomly going into driving mode, i dont even know how to activate it or what it does, but i think its draining my battery
2)When i was watching a tv show on my phone it thought that there was an hdmi cable connected and wouldnt let me hear anything through my headphones. i exited it several times but it still though there was a cable connected. Then i went straight home and quit it from the task manager and it worked with the headphines but that might have been a coincidence.
3)When i connect the charger it takes a while to realize that its charging and sometimes stops charging and says that the battery is too hot or too cold but when i feel the phone it feels completely normal.
4)When i connect the usb cable, other than taking a while to realize that its connected to a charger it doesnt realize that its a usb so i cant transfer files with my computer which i do often
5)I pressed home before and it took me to some sort of clock which i imagine is for a dock but i have no such thing
6) Even after using the phone for a while and using several apps the android os has used 59% of my battery, when usually its the display that uses about 30 or 40%
none of these things had happened before and now they randomly started all at once, i havent downloaded any shady apps so i doubt its malware
any ideas?
thanks
Click to expand...
Click to collapse
seems like majority of your problems are linked with the micro USB port, try resetting your phone and see if that helps. This is weird though.
It happened once to me on my sgs but that was because I inserted the charging pin without realising it was wet but it went back to normal a few days later and I changed my charger.

i was also starting to think it would be a micro usb problem,
would a factory reset fix it?
if so how would i back up my apps so that i have the same apps with the same progress on them, is it even possible?
or should i just wait and see if it goes back to normal?

I am also having this issue now. I've tried a factory reset with no effect. The phone is now largely unusable. Did you get a resolution? If so, how?

im having the same problem too .. wish it's just a software issue!!

the problem solved itself after a couple of days, i took out the battery and left the phone alone for about a day and after it worked fine again, not sure if it was the time or leaving it without battery but its working normally again

I'm having this exact problem - phone switches into driving mode, then says MTP is connected - then it switcheds to a strange lock-screen I have never sen before. It's really strange. I flashed a nandroid backup from a few months back and still the problem is there. I'd flash back to stock and send it in - but I can't connect to Odin via USB because of the problem. Is there anyway to convert a Stock rom to a CWM flashable file?
I'm desperate to get this sorted.

Experiencing the same. Has anyone a proven solution for this?

My phone, sorted itself out - should I say my wife sorted it out - by mistake. What I think she done was hold down the home button, and then pressed the power off button together and held them untill the phone switched off. When my phone came back on again - she had somehow removed the -Exclamation Triangle of the kernel counter and removed the problems from this post - that I'd been experiencing for abouyt 5 months prior.
Go figure - I now have a SGS2 that works beautifully again and has also had any kernel counter and Custom Rom flashing notifications removed altogether. I wish I knew why this worked, as I'm sure their are many who would like to remove the Triangle without a jig.
The other option that seeemd to work for other people was to clean the MicroUSB port of the device with a dry, clean toothbrush - though this did nothing for my problem. Good luck -I know how frustrating it is.

Help Please
Guys, I am Facing the EXACT same problem.
1.Driving mode on/off automatically
2.Showing a lockscreen which shouldn't have existed on this planet.
3.Hanging up unconditionally. Have to restart phone.
4.Sudden "mtp connections" and because of that "Media Scanner"
I own a Galaxy note just 1 month old! I was so angry that i wanted to sell this. But i couldn't adapt to any other smaller screens so, guess ill try fixing this.
1.It definitely is something related to usb port (Since i cannot charge my phone, i use an external charger)
2.Took my beloved to a samsung service centre, they said phone is waterlogged and showed me the motherboard, saying"IC MIGHT be damaged"
3.Cost for repair - $200
4.Cannot afford that. I am guessing they were bluffing cause i saw the shiniest motherboard ever
5.Please fix this, or ill be stuck with a Nokia 500 !!
6.I can, however afford changing the usb connector, anyone successful with that?
Edit: Did my homework and found out that its definitely a usb port problem. Solution:Clean the usb port. Ill try try it and get back to you ppl. Oh and about 20% of the world's population is facing the same problem.
Edit(2): SOLVED!!!
1. Turn Off phone
2. Remove battery.
3.Take a Brush with hard bristles(Toothbrush/Artist's Brush)
4.Take a pin.
5.Take your own sweet 15mins to perfectly clean the micro usb port using the brush. Nicely and Tidily, give all possible strokes to flawlessly remove any dirt in there.
4.Then take your pin(Be careful here) and gently insert it into the gap between that small metallic micro slab and the bottom part of the usb Connector and gently move it up, VERY GENTLY!!!
5.Clean the battery's charging plates using a cloth, i used my own T-Shirt.
6.Put battery in and REBOOT.
7.Clean the charging pin of the charger using the safety pin/Brush or both.
I have it on for 15mins and no problems. Removed and put the charger again and again, still no problem. After waiting for 1 week, i am able to charge it using its charger! Now lets see whether it lasts......:-/
Edit(3): So, my phone acted up again last night, with driving mode and car dock. I used the pin solution, No problem till now. its Peacefully charging. Bah! it really is annoying
Edit(4): Now, its been 24 hours since my last solution, and phone hasnt acted strange. I guess after another 12 hours ill rule out the permanent solution. Which i used.

same here
Well.. I'm having similar issue. Battery drain and random driving mode/voice search sometimes. It all started after last OTA update and rooting without changing a ROM to custom. I've clean out USB port and no result. Maybe it's time to scan system with AV or unroot device...

eihwazz said:
Well.. I'm having similar issue. Battery drain and random driving mode/voice search sometimes. It all started after last OTA update and rooting without changing a ROM to custom. I've clean out USB port and no result. Maybe it's time to scan system with AV or unroot device...
Click to expand...
Click to collapse
The problem is the stock firmware
Sent from my SGH-I777 using Tapatalk 2

Phalanx7621 said:
The problem is the stock firmware
Sent from my SGH-I777 using Tapatalk 2
Click to expand...
Click to collapse
I've loaded CM9 on my international Galaxy Note and the car mode still pops up randomly all of the time.

ckeswar critics,
davearose said:
I've loaded CM9 on my international Galaxy Note and the car mode still pops up randomly all of the time.
Click to expand...
Click to collapse
I had the same issues 2 weeks after i bought my galaxy s2. Took it to Samsung customer care and they replaced the micro usb port. Haven't had a single issue since.
PS: Try to dry out the port and the phone if it is a water logging issue. I used a hair drier to do that. Luckily the tab that indicates water damage hadn't changed colour.

Had same issue with my Samsung Galaxy Note - randomly going in and out of driving mode, used a dry, soft toothbrush to clean out the USB Charging port, so far so good.
Make sure to flick the bristles of the toothbrush back and forth with your thumb first as you might see a lot of dust fly off of it.
Don't use anything hard like a pin or needle as you might scratch the contacts.

archer2009 said:
Had same issue with my Samsung Galaxy Note - randomly going in and out of driving mode, used a dry, soft toothbrush to clean out the USB Charging port, so far so good.
Make sure to flick the bristles of the toothbrush back and forth with your thumb first as you might see a lot of dust fly off of it.
Don't use anything hard like a pin or needle as you might scratch the contacts.
Click to expand...
Click to collapse
Same here with my gs2... Resolved the issue using some contact spray on my micro USB port.

camiloorozco said:
I got my sgs2 about a month ago and its been like a dream, battery lasts for a long time phone runs ultra smoothly no glitches and nothing weird has been happening, but these last few days its just been really weird.
1) it started randomly going into driving mode, i dont even know how to activate it or what it does, but i think its draining my battery
2)When i was watching a tv show on my phone it thought that there was an hdmi cable connected and wouldnt let me hear anything through my headphones. i exited it several times but it still though there was a cable connected. Then i went straight home and quit it from the task manager and it worked with the headphines but that might have been a coincidence.
3)When i connect the charger it takes a while to realize that its charging and sometimes stops charging and says that the battery is too hot or too cold but when i feel the phone it feels completely normal.
4)When i connect the usb cable, other than taking a while to realize that its connected to a charger it doesnt realize that its a usb so i cant transfer files with my computer which i do often
5)I pressed home before and it took me to some sort of clock which i imagine is for a dock but i have no such thing
6) Even after using the phone for a while and using several apps the android os has used 59% of my battery, when usually its the display that uses about 30 or 40%
none of these things had happened before and now they randomly started all at once, i havent downloaded any shady apps so i doubt its malware
any ideas?
thanks
Click to expand...
Click to collapse
It's just a software problem, the reasons might be:-
1) you might have opened and closed some huge apps randomly and very rudely..
2) You are low on space on the internal MMC Card
3) Your phone might be performing the restarting apps re scheduler
Solutions:-
1)Factory Data reset will not help as the cache section might be corrupt.. neither the android 3e will help...
2) a)Use odin and download the Latest firmware package from Sammobile's Website.
b) for tutorial on flashing, go http://forum.xda-developers.com/showthread.php?t=2488942.
c) Do not touch the phone after processes and restart was observed...
d) Again get into download mode and re flash the same Firmware again...
e) Restart the phone holding the HOME key, (it won't do anything by itself)
f) it will surely fix your Phone
3) Message me if any problem persists...

avaneesh3 said:
1. Turn Off phone
2. Remove battery.
3.Take a Brush with hard bristles(Toothbrush/Artist's Brush)
4.Take a pin.
5.Take your own sweet 15mins to perfectly clean the micro usb port using the brush. Nicely and Tidily, give all possible strokes to flawlessly remove any dirt in there.
4.Then take your pin(Be careful here) and gently insert it into the gap between that small metallic micro slab and the bottom part of the usb Connector and gently move it up, VERY GENTLY!!!
5.Clean the battery's charging plates using a cloth, i used my own T-Shirt.
6.Put battery in and REBOOT.
7.Clean the charging pin of the charger using the safety pin/Brush or both.
Click to expand...
Click to collapse
I registered on this forum just to say that this is a great solution. It looks like my phone is saved now
Hope it will not happen again.

Screen doesn't respond when plugged in wall charger.

Yesterday I missed a call because screen didn't respond on touch, I was blaming on tithering (which by the way had rebooted phone twice today), but today I've noticed when this happens and I unplug the phone, it instantaniosly fixes the screen (and buttons as well), plugging it back in, freezes it. Was playing with it for a minute just to make sure..
Anyone experiencing anything like this?
P.S.
Installed "CPU Guage" which shows cpu load in real time in tasks bar, I can see the numbers changes but nothing above 30%, so it wasn't CPU overload

i haven't had that, until about 2 minutes ago. funny this was posted just now, i just logged in to post about it, lol. but my phone has been fine, until just now. i plugged it in and when to change it to mass storage mode and it wouldn't respond. then it was kind of weird when it started responding. it eventually worked, but took a couple of swipes.
---------- Post added at 06:39 PM ---------- Previous post was at 06:37 PM ----------
i also notice that when unplugged, i get around 44-45 linpack, plugged in, around 35

Nope, just tested it, plugged to the wall I could answer a call normally.

it might be because of short circuit, check ur charger or charge with another charger or cable see if it happen again.

I have it too. Anytime its plugged in it will be super laggy and/or freeze.
Sent from my MB865 using xda premium

I haven't seen this issue on the Atrix 2 yet, but both my Samsung Moment and Samsung Epic would have screen responsiveness issues while plugged in, so it is behavior I have seen in other Android devices.

I havent had this problem. When I go to bed I put my phone on the charger, wall type, and will usually mess around on the phone for a little while before setting it down for the night. Not once has it given me this problem.
Sent from my MB865 using XDA App

I don't have this problem all the time either, it happened only twice in two days. Just now checked it again - no problem whatsoever...
Perhaps if we trace what is running and/or what was running before this happens, we could figure something out.
Today I was using pandora, sportypal (which by the way consumes 40% cpu at times, on Atrix 4G never had this problem) and then after these two apps where closed I used mobile hotspot.
On background two apps are always running: battery cyrlce and nettraffic (there are many more apps started but they seems to be inactive, like skype which doesn't log me in automatically)
Oh and it could make difference, I use ADWLauncher EX

I don't have any of these problems. Get up every morning and check missed calls, emails, texts and FB notifications all while being plugged into the charger. Had someone call me and I answered it on speaker phone to make sure I didn't have any problems receiving a call while plugged in either

No problems so far, but I am completely stock. Phone was purchased on the Nov. 11th
wow, just had it happen.

Don't have this problem either but I am completely stock also.
Coldheat1906
Sent from my MB865 using XDA App

I don't seem to have this problem in the morning either, I notice it at about 11am - 1pm
Today I've killed every apps that was running (excluded services), but it didn't help at all. I still suspect mobile hotspot though, it doesn't work properly...client's get disconnected, then would not able obtain IP.

OEM charger and cable only
Make sure you are using ONLY the OEM charger and OEM cable to charge your phone. They provide an extra ground path not normally supplied which is needed by your capacitive touchscreen to function normally. A "normal" micro USB cable or USb charger does not provide this.

bigddybn said:
Make sure you are using ONLY the OEM charger and OEM cable to charge your phone. They provide an extra ground path not normally supplied which is needed by your capacitive touchscreen to function normally. A "normal" micro USB cable or USb charger does not provide this.
Click to expand...
Click to collapse
I have a charger by my bed, a charger in my work van, a charger at my desk at work and a charger on my pc....of all those, only the one by my bed is the oem charger and the oem cord, my phone works perfectly on all of them.

Ok, it has nothing to do with the type of charger, it even happens when connected to PC as storage or charge only. Changing cables also have no affect.

Me too
[email protected] said:
Yesterday I missed a call because screen didn't respond on touch, I was blaming on tithering (which by the way had rebooted phone twice today), but today I've noticed when this happens and I unplug the phone, it instantaniosly fixes the screen (and buttons as well), plugging it back in, freezes it. Was playing with it for a minute just to make sure..
Anyone experiencing anything like this?
Click to expand...
Click to collapse
I had this happen A LOT! Happened almost always with one particular charger, rarely happened when hooked up to computer USB port. Never happened in car using Griffin iPad car charger.
This was one of the frustrating things about the phone for me. Just sold, and have Galaxy Note on the way.

Hey people I have this similar issue... was searching xda for anything like this but seems this is the only place there is some issue like this happening...
I have a Galaxy S2 Running Cyanogen7 ...
Now here's what IV noticed... on stock charger I have no issues at all... nor when plugged into the PC... just today it happened and I was using a iPhone charger with a OEM Samsung USB cable... it was charging fine but the screen just wouldn't respond... as soon as unplugged would be fine... so... I'm thinking it's this charger maybe giving too much power to the phone... as my stock charger is 750ma while the iPhone one is 1A... that's the farthest IV been able to think... :s
Sent from my Galaxy SII

[email protected] said:
Yesterday I missed a call because screen didn't respond on touch, I was blaming on tithering (which by the way had rebooted phone twice today), but today I've noticed when this happens and I unplug the phone, it instantaniosly fixes the screen (and buttons as well), plugging it back in, freezes it. Was playing with it for a minute just to make sure..
Anyone experiencing anything like this?
P.S.
Installed "CPU Guage" which shows cpu load in real time in tasks bar, I can see the numbers changes but nothing above 30%, so it wasn't CPU overload
Click to expand...
Click to collapse
motorola contacted me to send them my phone and car dock, and they would swap them with new units so they can use mine with testing. you should go to the motorola atrix 2 owners forums and talk to mark

I've owned this phone for roughly 36 hours. I noticed last night (which is the first night owning the phone) that when the phone is charging, it doesn't seem to acknowledge my finger touching the screen. Since the phone was new, the only apps downloaded at the time were:
Lets Golf 2
Angry Birds
Tiny Bee Demo and,
AVG Anti-Virus
Things to note:
I did download the 3 games before the anti-virus program, so the possibility of a virus is there, but not likely.
I also didn't delete any apps or change any major settings that might cause the problem.
One other odd thing I noticed, I was in the middle of a text when I plugged in the charger, and that somehow made it insert a letter. I thought it was odd so I made sure it wasn't me touching the screen and tried it again, and it typed two other random numbers.
I hope this helps somebody somewhere find the fix to this problem... :cool
Edit: I have an Atrix 2

itz_speld_rong said:
I've owned this phone for roughly 36 hours. I noticed last night (which is the first night owning the phone) that when the phone is charging, it doesn't seem to acknowledge my finger touching the screen. Since the phone was new, the only apps downloaded at the time were:
Lets Golf 2
Angry Birds
Tiny Bee Demo and,
AVG Anti-Virus
Things to note:
I did download the 3 games before the anti-virus program, so the possibility of a virus is there, but not likely.
I also didn't delete any apps or change any major settings that might cause the problem.
One other odd thing I noticed, I was in the middle of a text when I plugged in the charger, and that somehow made it insert a letter. I thought it was odd so I made sure it wasn't me touching the screen and tried it again, and it typed two other random numbers.
I hope this helps somebody somewhere find the fix to this problem...
Click to expand...
Click to collapse
#1 if you are downloading trusted apps, you don't need an anti-virus
#2 uninstall the anti-virus because you don't need it and it's a system resource hog

P6810 suddenly won't turn on

Anyone come across this? I put it on standby last night after reading a bit of my book on it, and it had around 50% power remaining. This morning, it was totally unresponsive; pressing the power button does nothing at all. I've charged it for 12 hours in the meantime.
I've done the following all with and without the power attached:
- Pressed and held power for 15 seconds through to a minute
- Pressed and held volume up with power to attempt to get into recovery for up to a minute
- Pressed and held volume down with powerfor up to a minute
- Pressed and held power while touching screen (read that one off another forum)
I guess potentially it could be on and in a crashed state and unresponsive to the power, so maybe in a weeks time when it runs out of juice, I'll be able to charge it and power it back up, but in the meantime, I'd welcome suggestions.
A few weeks ago I updated it to the official ICS build that was released, but did the update myself rather than using KIES, as KIES didn't even recognise my Tab's firmware original version. It's been absolutely fine before the update, and since. I only mention it because I've read about the Samsung build of ICS being prone to self bricking itself, but I couldn't determine what the symptoms of this vulnerability were.
Thanks for any help offered,
Will

did you try connecting USB cable and plugging it into your PC? did u get any activity? can ADB recognize your tab?

I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium

Had the same problem while on holidays. Once the battery goes below a certain level, you won't be able to charge it through USB any more. Instead you need to use the wall charger.
I think it's bad enough that the 7.7 doesn't have a micro USB port, but things like that are just stupid and Samsung made a big mistake here. It don't think it's the same with the newer tablets though. It's also not possible to just buy cables or chargers for this strange Samsung port, so when you forget your wall charger at home at some point you won't be able to use your tablet any more.
As long as you charge with the USB cable early enough, you can avoid it though.

A few months ago I experienced the same thing, the Tab just wouldn't turn on anymore.
I tried all there is without any luck.
Contacted amazon and they replaced it with a new one in less than 48 hours.
So far not Problems with the new device.

I have the P6800 and this morning I took it off charge. Put it into standby and only used it for about 20 mins then left in standby all day. It had about 95% remaining when I did so.
Picked it up this evening and the lower left area of the screen was warm and it would not switch on. Didn't think of the ADB idea but will try this next time but I had to reset it and when it powered on tonight after the reset, it was down to 15%. Within about 2 mins of checking stuff it was down to 3%.
Something is running when it is in standby but as I can't switch it on I can't check with BetterBatteryStats or CPUState to know what is wrong.
It does this every day. I am tempted to do a factory reset and reinstall only limited software.
Dave...

I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.

Cluey said:
I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.
Click to expand...
Click to collapse
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal

TeeeJaay said:
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal
Click to expand...
Click to collapse
hhmmm, interesting.
I was having trouble with wifi just before this happened. Both my GS2 and this have been claiming to connect to my wifi but aren't actually getting an IP address from it.
I can't remember if it was last night or the night before but I manually set an IP address, the signal strength is fine as my abode isn't very big.
After it has recharged I'll have a poke and see what I can find, thanks for the reply.

So my device seems to be working fine again. It had gone SO flat that the date and time were incorrect!
After I could power it on I had a look at Better Battery Stats and nothing looked wrong so I have no idea what happened. None of the apps I'd installed the day before it played up had long wakelocks and weren't running when I turned it off.
For reference they were:
My Tracks
MyTrails
Google Earth
AndSMB
I'd turned both of the GPS tracking devices off before I turned it off for the night.
It hasn't played up since but it hasn't been long so I'll see what happens.

Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.

A similar thing happens to me every once in awhile. The way i check to make sure everything alright is to see if it boots into download mode. I just leave it plugged in for a couple hours and it eventually comes back on.

someth1ng said:
Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.
Click to expand...
Click to collapse
this is why my 7.7 is the last tablet/phone from Samsung i'll never trust them they are just bombarding the market with new devices and leaving the old ones to dust

^thats what I thought too but that gs4 is really tempting. I've heard worse about HTC in that regard anyways so that why I'm not going with the one.

Finally.. i bought Sony xperia Z.
I'll sell my galaxy tab 7.7. I.m very disappointed with samsung.
Sent From XPERIA Z

kishd said:
I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium
Click to expand...
Click to collapse
Unbelievable! ... this trick still works ... thank you very much for you help ...

^^ yo, this 'trickle charge' trick did NOT work on my (long) dead P6800... any other suggestions??

Quite strange because my Samsung GT-P6800 tablet was fully charged, it went completely blank dark as if it was off. To my amazement, SMS keeps dropping and calls kept coming in. Yet it is still as blank as though the tab was off. I pressed the power button and the volume up bottom for it to reboot. It rebooted without the screen coming up. It has been blank for two days now. What could be the cause? And what possible solution can be given?

[Q] Tablet? Oh, you mean my paperweight?

Hello friends. Having lots of issues with my tablet.
A while ago i noticed that my tablet was running a bit sluggish, and the brightness of the screen was flickering when on auto-brightness. I didn't think anything of it, but the next morning when I unplugged it after it was charging all night, it was at 30% after a few minutes. Every time I plugged it in it would say "charged", but a few seconds after I unplugged it it would go back to 30%. It's gotten to the point where I can't use it because it won't turn on. It's plugged in, but I press the power button and the screen lights up for a half second and then dies (i'm assuming).
I've tried other cables, etc, anyone have any ideas? I haven't been able to use my tablet the past 2 days because of this.

Sounds like it's time to RMA...

jaredmorgs said:
Sounds like it's time to RMA...
Click to expand...
Click to collapse
Was afraid of this...Kinda was hoping it would be a software issue
Think they'll care if I rooted it?

Rooting it would not cause this and I'd get in to a massive argument with anyone that claimed otherwise.

Laggyness
Credit Clown said:
Hello friends. Having lots of issues with my tablet.
A while ago i noticed that my tablet was running a bit sluggish, and the brightness of the screen was flickering when on auto-brightness. I didn't think anything of it, but the next morning when I unplugged it after it was charging all night, it was at 30% after a few minutes. Every time I plugged it in it would say "charged", but a few seconds after I unplugged it it would go back to 30%. It's gotten to the point where I can't use it because it won't turn on. It's plugged in, but I press the power button and the screen lights up for a half second and then dies (i'm assuming).
I've tried other cables, etc, anyone have any ideas? I haven't been able to use my tablet the past 2 days because of this.
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Mine also was having the same issue. I searched high and low for a fix and finally came across a thread here on XDA that suggested deleting a corrupted jpg image that is created by the default camera 'Camera Awesome'. The corrupt jpg image sends the media scanner into an endless loop that taxes the CPU nonstop. The folder location is Android/data/com.smugmug.android.cameraawesome. I would delete any subfolders also. Hope this does the trick for you. Another tip is to stop the Blake_wakelock wakelock created by the Shield Wireless Controller which drains your Wi-Fi continually. Download the 'Disable Service' app from the google play store and once it is installed scroll over to the system apps and long click the 'SHIELD Wireless Controller Service'. From there you can disable the 'BlakeManagerService'. You can always turn it back on if and when you need to use it but that will stop your wakelocks for now. Hope everything works out for you. I was having the same trouble as you but was determined to figure it out as I did not want to send mine back cause it is my first tablet and has a lot of potential. Let me know how it goes.

Thanks for the suggestion, but the problem is I can't get it to turn on at all. Oh well, my replacement has already shipped and gets here Monday

Mine as well
Mine was working fine for 4 days. Set it down then went to power on to read book and nothing. I take it I have no recourse but to call Newegg and RMA?

Random Reboot \ Shutdown - Not another one, I know

Hear me out. I now this has been brought up in various forums, and trust me I have searched them all. I just have not seen anyone speak of the exact scenarios I have experienced. At least not together.
So I have 2 Nexus 5's, a 16GB and a 32GB. My 16GB has no issues at all with the random shutdown\reboot running L up to 5.1. My 32GB however exhibited issues immediately after upgrading to the 5.0.1. During the initial update it barfed and went in to a boot loop, even in Fastboot. I eventually got it back up and running and rolled all the way back to 4.4.4 and then stepped up to each new version up to 5.0.1 then 5.1 once it was official. Still experiencing the shutdowns and reboots under certain circumstances.
I have noticed 3 things that appear to cause the issue:
1st Wi-Fi - With Wi-Fi On it happens repeatedly when entering or leaving a new wireless network. With Wi-Fi Off I can go days without issue.
2nd 3.5mm Audio Cables - Jump in my car, fire it up, plug in to my stereo and poof, it reboots. Possible its just cheap audio cables??
3rd Car Chargers - I have only seen it with car chargers, but if I have it plugged in during a drive it will randomly reboot or power off. If I have it plugged in with the car off, as soon as I turn it (the car) on my phone reboots\shuts off.
Appears to be some impedance change on specific types of load or something. I am no electrical engineer so I could be way off. One thing I have noticed that I know others have as well, is that when a reboot\shutdown happens the battery drains like crazy. But I have also noticed that if it is plugged in to a power source between two back to back episodes that it charges super fast while it is down. I'm talking 25-30% increase in a matter or 2-3 mins.
So with Wi-Fi off, and good headphones plugged in I can go all day listening to music and it works like a charm. Bluetooth does not seem to be an issue, as I have my Moto 360 paired all day too. Running with Wi-Fi off, not plugging in to my car for audio or power I have not had a reboot\shutdown for 3 straight days.
I have seen some say its software, some hardware. Some say factory wipe, clear cache, etc. Send it in and get a new one (this one is out of warranty). Or download official and start from scratch. I've done these, and still it persists. Tried other ROMs as well. Have not gone down the route of different Kernels. Given that Wi-Fi is on one board, power on another I would assume its not hardware. Then again since I have flashed, and reflashed between official and custom ROM's I would say it is. At a loss. Willing to try anything, I really like this phone.

This might be a cracy solution.
As I experienced the same random reboots on 5.1, I worked myself through the usual process: hardreset, reflashing the rom and so on. Even called google for RMA, which got green light as they couldnt find the issue either.
Turned out my new case pressed too hard on the on/off-button, shame on me. Figured it out in time fortunatelly.
If theres no solution for you , send it in directly to LG. They repair it and hopefully the price wont be too high. Good luck!

W.O.P.R said:
Hear me out. I now this has been brought up in various forums, and trust me I have searched them all. I just have not seen anyone speak of the exact scenarios I have experienced. At least not together.
So I have 2 Nexus 5's, a 16GB and a 32GB. My 16GB has no issues at all with the random shutdown\reboot running L up to 5.1. My 32GB however exhibited issues immediately after upgrading to the 5.0.1. During the initial update it barfed and went in to a boot loop, even in Fastboot. I eventually got it back up and running and rolled all the way back to 4.4.4 and then stepped up to each new version up to 5.0.1 then 5.1 once it was official. Still experiencing the shutdowns and reboots under certain circumstances.
I have noticed 3 things that appear to cause the issue:
1st Wi-Fi - With Wi-Fi On it happens repeatedly when entering or leaving a new wireless network. With Wi-Fi Off I can go days without issue.
2nd 3.5mm Audio Cables - Jump in my car, fire it up, plug in to my stereo and poof, it reboots. Possible its just cheap audio cables??
3rd Car Chargers - I have only seen it with car chargers, but if I have it plugged in during a drive it will randomly reboot or power off. If I have it plugged in with the car off, as soon as I turn it (the car) on my phone reboots\shuts off.
Appears to be some impedance change on specific types of load or something. I am no electrical engineer so I could be way off. One thing I have noticed that I know others have as well, is that when a reboot\shutdown happens the battery drains like crazy. But I have also noticed that if it is plugged in to a power source between two back to back episodes that it charges super fast while it is down. I'm talking 25-30% increase in a matter or 2-3 mins.
So with Wi-Fi off, and good headphones plugged in I can go all day listening to music and it works like a charm. Bluetooth does not seem to be an issue, as I have my Moto 360 paired all day too. Running with Wi-Fi off, not plugging in to my car for audio or power I have not had a reboot\shutdown for 3 straight days.
I have seen some say its software, some hardware. Some say factory wipe, clear cache, etc. Send it in and get a new one (this one is out of warranty). Or download official and start from scratch. I've done these, and still it persists. Tried other ROMs as well. Have not gone down the route of different Kernels. Given that Wi-Fi is on one board, power on another I would assume its not hardware. Then again since I have flashed, and reflashed between official and custom ROM's I would say it is. At a loss. Willing to try anything, I really like this phone.
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Click to collapse
Tried http://forum.xda-developers.com/showthread.php?t=2821576 ?

Infinite104 said:
This might be a cracy solution.
As I experienced the same random reboots on 5.1, I worked myself through the usual process: hardreset, reflashing the rom and so on. Even called google for RMA, which got green light as they couldnt find the issue either.
Turned out my new case pressed too hard on the on/off-button, shame on me. Figured it out in time fortunatelly.
If theres no solution for you , send it in directly to LG. They repair it and hopefully the price wont be too high. Good luck!
Click to expand...
Click to collapse
I use a CruzerLite case, does not cover the power button, and I have had the case on my 16GB as well, so I "believe" this would not be the issue. Then again I might as well try to run it outside the case for a while just to see what happens.
I might have to go down the LG route, really hoping not to though as I have heard the cost is pretty high. Would rather then just save the money for a new device.

beekay201 said:
Tried http://forum.xda-developers.com/showthread.php?t=2821576 ?
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Click to collapse
I have not yet gone down this route. I did read this one, but didn't see it applying directly to my issue. Then again, what could it hurt.

W.O.P.R said:
I have not yet gone down this route. I did read this one, but didn't see it applying directly to my issue. Then again, what could it hurt.
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Click to collapse
My point exactly.