Galaxy Tab 2 10.1 won't hold a constant charge - Galaxy Tab Q&A, Help & Troubleshooting

Hi all,
I bought the 3G Galaxy Tab 2 10.1 a few weeks back now and I have a strange problem. WHen I charge the device on the PC via USB the connection and charge is fine. However, when I use that asme USB cord and connect it to the wall (using and adaptor of course) the charge switches on an off every two or three seconds. The device cannot constantly charge. Unfortunately, this also leads to the device taking forever to fully charge when it is connected to the wall.
Any suggestions on why the charge would be switching on and off when connected to the wall? I am considering taking it back to the retailer but thought it would be a good idea to pick the brains of the people who frequent this site! They have helped me plenty of times in the past.
Thanks for taking the time to read my question.

Maybe better if you pick the brains of Galaxy Tab 2 forum readers?
Sent from my GT-I9300 using xda app-developers app

Related

my galaxy won't charge

hi im having problem charging my galaxy, it won't charge at all after the battery died out once when i plug it into a power source the loading circle comes out then battery than it repeates everytime. Is this the way a galaxy charges i never had a phone like this before.
I am new to this forum and I am having the same issue, I got my phone yesterday and now I am only getting the gray battery with circle flashing every 10 or 15 seconds, I have tried switching wall sockets and usb ports
Any help will be helpful. Thanks
Mario
What was the problem... mine is doing this out of the blue. Thinking it is the battery but let me know what your problem was ...
The charging / micro USB socket could be broken. Does it work if you wiggle it around a little bit?
Alternatively the actual plug / socket could be broken. Have you tried a different one?
Have exactly the same problem.
SOS Folks.
Sent from my GT-I9000 using XDA App
Busted battery or busted usb. Pick one.
snapper.fishes said:
Busted battery or busted usb. Pick one.
Click to expand...
Click to collapse
I have two battery's for my Galaxy S - the same results on each battery. Bin today to a technical store they have made an examination of the USB. No hardware issues, must be software.
Will flash back to a stock GB.
Results coming up later.
Right now on: MIUI MintBerry Edition 1.12.2-2 (2.3.7)
Sent from my GT-I9000 using XDA App
I found the charger that comes with the galaxy s is to be blunt, ****. Mine packed up after a few days so I bought a non geniune one from fleabay and thats been fine.
With stock GB the issue still pressist. I will also try with a different charger, hope it will work.
Sent from my GT-I9000 using XDA App
Universal Travel Charger have solved the problem. ;-)
Sent from my GT-I9000 using XDA App

[Q] How long does your tab 8.9 charge?

How long does it take your Tab to charge from about 0-20% to 100%?
It takes mine forever - about 16 hours, although I'm on stock Honeycomb rom
informale said:
How long does it take your Tab to charge from about 0-20% to 100%?
It takes mine forever - about 16 hours, although I'm on stock Honeycomb rom
Click to expand...
Click to collapse
I'm not completely sure, but 16 hours seems to be too much to me. I usually charge over night, so i guess it might be something around 8 hours.
MAMUTHcz said:
I'm not completely sure, but 16 hours seems to be too much to me. I usually charge over night, so i guess it might be something around 8 hours.
Click to expand...
Click to collapse
I think so too!
I just wonder what is causing this... (1) some faulty chip in the tab itself, (2) faulty battery, (3) faulty Samsung cord or (4) faulty charger. No way to find out for sure, unless I return it to the shop and wait about 30 days (at best) while they figure that out and give their verdict
I hope someone has\had this problem and knows what exactly was causing it.
informale said:
I think so too!
I just wonder what is causing this... (1) some faulty chip in the tab itself, (2) faulty battery, (3) faulty Samsung cord or (4) faulty charger. No way to find out for sure, unless I return it to the shop and wait about 30 days (at best) while they figure that out and give their verdict
I hope someone has\had this problem and knows what exactly was causing it.
Click to expand...
Click to collapse
the last 5% take forever. That's usual behaviour for charging. Check out how long it takes to charge to 90% or maybe 95%. Should not take longer than 6 hours. If it does then maybe try a different charger or reset your tab to make sure it's no software bug.
Hard to tell the real source of error, sorry...
Are you ABSOLUTELY certain to be using the original, for your tab, charger, with a 2 amp output.
With such charger, it should be about 4 - 4.5 hours.
But if you are using a generic, or something made for an avg phone, with .5A output... Well 16h seems normal
Sent from my HTC Desire using xda app-developers app
Mine is about 6h
I am using Samsung banded charger that came with the Tab.
Sometimes it does charge fast, but most of the time it either charges very slow, as though it were charging from USB, or doesn't recognize the charger, or even says it's established MTP-connection...
from 8 to 10 hours on hc 3.2
but now on ICS take less
using the charger that came with the tab, you should get charging times around the 4/5 hours. HC 3.1 and 3.2.
informale said:
I am using Samsung banded charger that came with the Tab.
Sometimes it does charge fast, but most of the time it either charges very slow, as though it were charging from USB, or doesn't recognize the charger, or even says it's established MTP-connection...
Click to expand...
Click to collapse
Does the cable work properly when you use it for USB operations (file transfer, etc.)?
If so, then maybe the charger is broken/faulty. Samsung (in its infinite wisdom ) put a resistor network in their chargers so that the tab/phone can recognize a charger vs a usb connection ... or maybe just to make money from over-engineered accessories. who knows? However, if that resistor network has failed (or the cable is broken, hence the question above about USB operations) then the charger will present as a USB port rather than as a Samsung power source.
Oh! Another data point to consider: does gently wiggling/straightening the cable when it's connected cause the behavior to change?
prince93 said:
using the charger that came with the tab, you should get charging times around the 4/5 hours. HC 3.1 and 3.2.
Click to expand...
Click to collapse
There isn't much difference with ICS 4.0.4 US rom in my opinion. And it is still picky what chargers it accepts when it's turned on (DX.COM charger works for me). I usually turn the TAB off and use a stronger charger, but it still takes a LONG time to charge in my opinion. I do an overnight charge as much as I can.
Did an overnight charge with the Tab turned off, and it charged to 100%, finally. But when it's on (even in airplane mode) it only charged to 60% last night (took 12 hours!).
Weird)
i always charging my tab from 0 or 2-5% to 100% either when powered on or off and it always takes 5 to 5 1/2 hours. no more and no less with default charger set.
first i thought it was taking too long but when i saw this thread i'm glad its only 5 hours
mikosafalas said:
i always charging my tab from 0 or 2-5% to 100%
Click to expand...
Click to collapse
Common belief (knowledge) is that this is not the best for a lithium ion battery... It increases the wear, gets it to lose capacity sooner... If possible, charge your battery often, like as soon as you can below 75%. Only occasionally drop battery to 0%. IIRC, there's a good website called "battery university" talking about that
Sent from my HTC Desire using xda app-developers app
charging
My P7300 takes 5-6 hours to 100%
fred_be9300 said:
Common belief (knowledge) is that this is not the best for a lithium ion battery... It increases the wear, gets it to lose capacity sooner... If possible, charge your battery often, like as soon as you can below 75%. Only occasionally drop battery to 0%. IIRC, there's a good website called "battery university" talking about that
Sent from my HTC Desire using xda app-developers app
Click to expand...
Click to collapse
uppss my mistake. i read the article on the site and get conclusion that dont over charging or discharging ur battry better to leave it partly full and dnt forget to shutting down the device be4 recharge
Sent from my GT-P7300 using Tapatalk 2
Thanks!
boscorama said:
Does the cable work properly when you use it for USB operations (file transfer, etc.)?
If so, then maybe the charger is broken/faulty. Samsung (in its infinite wisdom ) put a resistor network in their chargers so that the tab/phone can recognize a charger vs a usb connection ... or maybe just to make money from over-engineered accessories. who knows? However, if that resistor network has failed (or the cable is broken, hence the question above about USB operations) then the charger will present as a USB port rather than as a Samsung power source.
Oh! Another data point to consider: does gently wiggling/straightening the cable when it's connected cause the behavior to change?
Click to expand...
Click to collapse
Thanks, used your post to fix mine. I ended up replacing the cable and not the charger. I'm using an original charger with a new cable now.
I am seeing same problem with my brother's 7300 tab as well. Its taking around 10 or more hrs to charge.
Anybody got tablet replaced in warranty for the same reason? Even with Nexus 7 original 2 A charger its taking too much time. With samsung original charger also it was taking similar time so i am sure problem is with the tab only.
4-5 hours on mine.
Sent from my GT-P7310 using xda app-developers app
Many Galaxy tab 8.9 owners have reported experiencing long charge times to the tune of about 16 hours, me included.
Solution:
Plug in the charger to the tab very very slowly. The charge icon in the system tray has a lightning symbol on it aka normal charge.
Connecting it at normal speed results to the charging icon in the system tray having a cross on it. It then charges very very slowly.
Why should we need gymnastics to normally charge our tablets? Ask Samsung.
Sent from my GT-I9300 using xda premium

is the 8.9 able to charge with your pc?

is the 8.9 able to charge via usb with your pc or only thru the wall charger?
vincentnyc said:
is the 8.9 able to charge via usb with your pc or only thru the wall charger?
Click to expand...
Click to collapse
will probably take days
vincentnyc said:
is the 8.9 able to charge via usb with your pc or only thru the wall charger?
Click to expand...
Click to collapse
If you have one of the roms that is in development yes. If you have the stock I have found it does a slow trickle but really not worth it. I would suggest using the original charger as it is fastest way to charge.
Now here is a cowboy.....
Any advice on a reliable, robust ROM that does have this functionality?
I used to have it on HC using motley's kernel and script (see development thread). Since moving to stock ICS I'm heartily fed up with waiting three weeks for a 1% battery charge! Joking (but only just)
I am currently using Official CyanogenMod 9 which seems to do well. I also bought a charger at best buy that supplies the required 2amp and my tab charges in around 6 hours to a full charge.
http://forum.xda-developers.com/showthread.php?t=1435868
I couldn't work my way through all 100 pages of comments on the CyanogenMod ROM but there is a pretty strong hint that it has problems with screen behaviour and Google Maps crashing - not really what I would call robust and reliable? Any other suggestions?
PS on the charger - there was plenty of stuff in various old threads that made it clear that having a charger with a 2 amp output is not the whole story. I have one at home from Maplin (I'm in the UK) and it still only trickle charges the tab (little red cross in the battery icon). With the Motley/Pershoot kernel on HC I was able to get a reasonable charging rate from the powered USB hub that sits on my desk.
Yes at first it was but they update it alot and I have had it now for a couple weeks and have had no problems with it. Other then that I would suggest lurking the development forums and tray a couple of them to find what suits you best
alexbush said:
there was plenty of stuff in various old threads that made it clear that having a charger with a 2 amp output is not the whole story. I have one at home from Maplin (I'm in the UK) and it still only trickle charges the tab (little red cross in the battery icon). With the Motley/Pershoot kernel on HC I was able to get a reasonable charging rate from the powered USB hub that sits on my desk.
Click to expand...
Click to collapse
*nods* Samsung chargers have a resistor network in them to allow the tab/phone to detect them. There are in fact little USB dongles out there that provide that network so you can plug the unit into non-networked chargers (and even high-amp USB ports) to get (near) regular charging rates from them.
I use the P7300 stock rom with the A1 kernel on top. I have a docking station at work which is connected trouch USB.
It does charge the tab, but I'd rather not refer to this action as charging as it only marginally changes the battery state. better call it "It keeps the tab from discharging".
boscorama said:
*nods* Samsung chargers have a resistor network in them to allow the tab/phone to detect them. There are in fact little USB dongles out there that provide that network so you can plug the unit into non-networked chargers (and even high-amp USB ports) to get (near) regular charging rates from them.
Click to expand...
Click to collapse
Any links for these wondrous dongles (particularly here in the UK?
alexbush said:
Any links for these wondrous dongles (particularly here in the UK?
Click to expand...
Click to collapse
Well, I've seen it on US & Aus ebays, so it may be on UK too. Here's the one I found on US ebay:
http://www.ebay.com/itm/USB-car-wal...ablet_eReader_Accessories&hash=item2c5c07736b

HDMI MHL Adapter.

Hey guys.
I ordered this cord about 2 weeks ago now.
I got it in the mail today, thinking it wasn't going to work.
It was only $7 so I thought, ehh whatever
I plugged all of the cords (HDMI, Power and Charger port).
Whattya know, my phone screen is now on my television.
I already watched a movie on my television, ported full 1080p. No lag whatsoever.
Watched Netflix, no problems, full screen playback working crystal clear.
Just a couple small problems, the USB is very touchy. The screen will stay mirrored, but if you pull back the USB port even a tiny bit, it will lose the picture.
I noticed when i have the phone plugged in, my data signal diminishes significantly. I'm not sure if its because of the cord or just the crappy phone reception in my home.
I know for a fact this CANT be genuine.
I'm actually quite surprised.
For the whopping price if $7, this is a steal.
I will post a video later, don't have a camera at the moment.
http://pages.ebay.com/link/?nav=item.view&id=400478343597
Sent from my SPH-L900
I got one off of amazon for fairly cheap as well, but I found the gaming to be pretty laggy so it's been stuffed into a drawer somewhere.
Is this the one with micro-usb charging port on it? If it is,can you charge your phone if you connect charging cable to this MHL adapter while it's connected to Note2/TV? For some reason I thought that it's just like OTG cable where you phone becomes a host and outputs HDMI signal and you can't charge it out. But then I read somewhere you can. So, can you please clear it up if phone can be charged through that micro-usb port on the side (if your adapter has one)?
vectron said:
Is this the one with micro-usb charging port on it? If it is,can you charge your phone if you connect charging cable to this MHL adapter while it's connected to Note2/TV? For some reason I thought that it's just like OTG cable where you phone becomes a host and outputs HDMI signal and you can't charge it out. But then I read somewhere you can. So, can you please clear it up if phone can be charged through that micro-usb port on the side (if your adapter has one)?
Click to expand...
Click to collapse
Yes.
Your phone charges while plugged in.
On the 2nd photo, I tried to show the usb port.
Power MUST be plugged in to use this.
Sent from my SPH-L900 using Xparent Red Tapatalk 2
Does battery charge actually accumulate in this manner?
willfck4beer said:
Does battery charge actually accumulate in this manner?
Click to expand...
Click to collapse
I'd say a little but not too much.
I plugged it into my TV at 100 percent.
I watched a movie that lasted about an hour and a half and when I took it off, it was at 92 percent.
Sent from my SPH-L900 using Xparent Red Tapatalk 2
when you use TV-out you should set display brightness to the lowest setting, and use both an original Samsung charger and an original Samsung usb cable.
many 3rd party chargers and cables can't handle the 1.5-2A the note 2 needs for charging while using TV-out.
I'll try this also. Thanks for the link. Where are you guys getting your authentic Samsung cables and chargers? Samsung directly?
thedicemaster said:
when you use TV-out you should set display brightness to the lowest setting, and use both an original Samsung charger and an original Samsung usb cable.
many 3rd party chargers and cables can't handle the 1.5-2A the note 2 needs for charging while using TV-out.
Click to expand...
Click to collapse
Thanks for the tips
Sent from my SPH-L900 using xda premium
here is video showing HML running on MA7. I'm using the generic Monoprice adapter, the 5-11pin adapter, and their ultra slim with RedMere HDMI cable (signal goes one direct only).
It's not that other cable and charges don't work. The phone uses more power to convert the signal for the USB cable. Then the adapter needs power to work, so you're not getting the full 2amps being passed from the charger. On top of that, the USB may not have rating or resistance to pass the 2amps as well. Thus, what may appear as the phone not charging is really the phone battery not depleting as quickly because it's not recieving more power that the GN2 is using.
I've used cheapy cables and other chargers fine to watch videos and what not, and the phone build a charge; just not as quickly as the OEM.
I've used the OEM cable and charger, and still depleted the battery because I was runuing WiFi tether, and HML. The best I was able to do, reduce the depletion to 10% an hour.
I recommend this to save battery life. It requires root but lets you turn the screen off.
https://play.google.com/store/apps/details?id=com.nkahoang.screenstandby#
I bought the OEM MHL to HDMI cable and it stopped working after a couple of uses. And I only use the OEM charger with the cable
I tried swapping out the HDMI cable, but that didn't make any difference. Picture would not go to the TV. Is there a setting that I'm missing on the device for TV out?
I assumed the cable was defective and bought a cheap one from monoprice, but same story there, it does not work either.
no special setting. Probably a driver got borked in the phone. You may want to reflash or do a factory reset assuming you've switch cables, adapter and tried a different TV.
I bought a similar one from another seller but the pin is quite long and doesnt go in completely. Is it the same in your case?
And no im not getting anything on my hdtv :/
I have a Samsung MHL adapter that I bought to use with my OG Evo or Evo 3D, don't remember which one. I've had it for years now, and it still works great! I wish that Samsung would make something like HTC did with their Media Link HD. I still use my Evo LTE and Media Link HD to watch my TV shows on Droid TV PrimeTime. That's an awesome app that only costs $9 every 3 months. It doesn't have movies, just TV shows. It has shows from their current series though, and will record shows (from the series you've selected) just 12 hours after it airs! I only use Netflix for watching older series of shows and movies.
SwiftKey'ed from my White Sprint Note 2 using XDA Premium

Does anyone else have trouble charging this phone on other chargers?

So the battery life has been great, and I haven't had to use any other charger other than the OEM for a while. The other day I was out with friends and I took out my car charger (2A) that I hadn't needed since I got the flex because I just don't have to charge my phone like how I used to with my note 2. So anyways, I took it out because I knew I wouldn't be back home for a while and I would have to charge my phone outside the house for the first time ever.
I connected the charger and I got a "slow charge" message on the top, like if I had connected it to a usb port.. ok?....this charger has charged many devices so I know it works. It has even charged tablets, so I thought it was strange. No problem though right? I'll just charge it for a bit at my friends house and just watch my usage throughout the night. As soon as I connected it to my friends OEM samsung 2A Note 2 charger I thought everything was fine until I checked it again about 45 minutes later when we were about to leave. It had charged maybe 1% in those 45 minutes!
So the night passed and I was ok but ever since then it has got me thinking. I have connected several other chargers and they all act the same, the phone charges at maybe 500mAh, not even that sometimes, but with the OEM charger it works like normal.
Anyone else experiencing this problem?
I have experience this with cheap usb chargers. But I also have anywhere from 5 -10 between my house and work and they are all from Samsung and BlackBerry. And they all work just fine.
Sent from my LG-D950 using Tapatalk
I just wanted to update you guys. So I shut down the phone and let it sit for a bit and turned it back on. The note 2 charger now charges the flex at an acceptable rate and it seems that maybe it was just glitched. Next time I'll be sure to just turn off and on the phone first if it happens again.
Sent from my LG-D959 using xda app-developers app
I remember reading somewhere that this phone uses USB 3.0, and the rep told me that using a car charger may trickle charge the battery and cause irreparable damage.. Looking at my OEM cable for my last phone, the S3, the G Flex cable is thicker.. I make sure to only use the one that came with the phone, call me paranoid lol

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