I have an untouched, unbranded Defy on 2.21 which works fine until I connect it to a usb lead for charging whereupon the touch screen stops responding and usually remains like this for about 30 seconds after I have unplugged the usb cable.
Until this morning when I had had it connected overnight to a cradle by the bed and could not turn the alarm off. I ended up pulling the battery, but at least I was awake by then, I suppose.
My question is: is this a common problem, and if so is there a cure?
And a supplementary one: would a custom ROM, CM7 or Miui, solve the problem?
Any help greatfully received!
my defy behaves exactly the oposite way. When connecting with USB cable I am able to ude the phone properly, everything works fine all applications' responsiveness are great. However, when charging the battery using the power cable, the phone starting hanging on every application. Everything starts getting slow and a simple touch takes 5 or 6 seconds to retrieve any action from the phone.
I dont know if this a common behavior for the defy neither if has any fix for that, i got used to it so i always charge my phone when it is off.
I have this issue too, but a little different. When I use a different charger than the original one, the screen is stuck, but I think, it is charging. When I use the standard charger, it works perfektly. I can't explain why.
By the way: I'm using CM7 with the nightly from yesterday
i am also using CM7, but the beta 6 version. I will try this test. I have two different charges, one original and another not, i will see if it behaves the same way you are saying. i will post my results soon.
mtb-defy said:
I have this issue too, but a little different. When I use a different charger than the original one, the screen is stuck, but I think, it is charging. When I use the standard charger, it works perfektly. I can't explain why.
By the way: I'm using CM7 with the nightly from yesterday
Click to expand...
Click to collapse
same here..
Possibility of charger voltages rating differences giving out the output here I guess.
The original charger has been calibrated with just enough voltages/current to supply the phone during charging whilst the non-original charger doesn't have the exact voltage/current needed by the phone during charging thus giving the phone all sort of problems. One may see the non-original charger has label the right rating as per the original label but that doesn't give any warranty it work exactly like the original charger.
I recomend to use only original charger to avoid any damages may occur to the phone.
If one using original charger and still having phone behaving strangely. It may be caused by the phone itself(hardware issue) or the original charger(manufacturing defect) which by this mean you're one of the unlucky owner.... get a replacement ASAP..
I'm not sure about running firmware as such Eclair, Froyo or custom rom would do anything about charging side effect here.
I thought, that an intelligent power management only takes as much current as it needs. My adapter has 2 outputs (max 500mA, max 1000mA). I would expect the phone to work with any of these. When I plug in my navigation unit it works perfectly.
I'll take the adapter with me and try it with the original Defy of a friend. If it works with his phone its a software issue if not I'll have to look out for an alternative charging my phone in the car.
i deeply tested last night, charging with the original charges let the phone 100% useable without any lags while the usb charger kept me having lags and keeping the phone without any good responsiveness. No more usb chargers anymore
same here, original charger (btw, that is ALSO a USB charger...) works, but aftermarket charger, screen no (or little) response.
when connect to pc, works so-so.
mtb-defy said:
I thought, that an intelligent power management only takes as much current as it needs. My adapter has 2 outputs (max 500mA, max 1000mA). I would expect the phone to work with any of these. When I plug in my navigation unit it works perfectly.
I'll take the adapter with me and try it with the original Defy of a friend. If it works with his phone its a software issue if not I'll have to look out for an alternative charging my phone in the car.
Click to expand...
Click to collapse
don't expect every gadgets will work on any universal charger. The exact rating counts on a delicate devices specially on touch screen product. Grounding too must be equally the same from the charger to the phone which would result non side effect on using while charger is connected. Avoid using local based charger if possible as it could save your phone from damaging. Buy original if you really need it.
Sent from my awesome Moto Defy - XDA Premium
this happen to me too sometimes, but not all the time
Related
For the past 2 years on my old Desire I was using a homebrew in car charger I put together myself that would happily provide 1A, but my new One X seems a little more power hungry than that and when in car mode it seems to discharge slowly even though it's still plugged in.
Can anybody recommend anything suited for the One X's huge power drain (homebrew or off the shelf, I don't mind) other than HTC's expensive official one? I was looking at the Belkin ones floating about but they still only provide 1A.
Thanks, Dave.
i bought the official ATT universal charger when i got my GS II in Oct and it should work with the One X. also, i think some car docks/mounts are active and have their own chargers, so you might not want both.
I'm using the official HTC Dual USB charger. Does the job nicely. and looks pretty good too. I just wish it was in white to match my One X
Reckless187 said:
I'm using the official HTC Dual USB charger. Does the job nicely. and looks pretty good too. I just wish it was in white to match my One X
Click to expand...
Click to collapse
Did you try it with BT on, Sat Nav + music, screen on ?
I have the same issue as OP. Changed my 800 mah for a 1A but battery is still draining =(
Same problem here... 2x1A HTC Charger... Is there anyboby who tried Belkin 2A mini charger?... I am bit scared, because in my battery monitor history Ive never seen more than + 600mAh... Even when off on home charger... It seems to me, that phone woudlnt allow quick charging... :-(
rahan95 said:
Did you try it with BT on, Sat Nav + music, screen on ?
I have the same issue as OP. Changed my 800 mah for a 1A but battery is still draining =(
Click to expand...
Click to collapse
I had my phone connected to:
Car Bluetooth,
Google Maps on screen,
Screen On,
Poweramp Playing in background via speaker, and
Phone connected to the official HTC Dual USB Car Charger.
No power issues whatsoever. I had it connected and charging for about 10 minutes.
I kind of solved this problem by setting ballanced power consumption policy in my Sygic mobile navigation and lower brightness setting. But still I am unable tu charge my phone while using WAZE (navigation and lot of HSDPA data trafic)...but for now its ok..most important for me is charging during navigation by sygic....
In the end problem is still there and should be solved...I think that its really not ok to charge battery only by 600mA while other phones are able to take 1000mA usually delivered by all chargers..
I just posted about this issue here:
http://forum.xda-developers.com/showthread.php?t=1633245
it's not a problem of charging current, but of the phone battery overheating - it will just stop charging until it cools down (and if there's navi running it won't cool down, ever). I even tried a 2A charger - it will charge happily, but once I start Waze or Sygic it gets hot and starts to discharge again.
I think this is bad design because it should be able to run off the charger without battery in this case, but what it does is charge+discharge battery at the same time... either that or it just starts sipping from the charger when hot because it doesn't care if it's charging or just running from the charger....
Anyway, it has to be fixed.
same problem for me, but with some exception.
Im using Belkin mini car charger with 1A output. in car im turn on only GPS + 3g network. brightness set to 25%.
and with all of this settings battery slowly drain.
Also ive should say that battery not overheated through charging, but after 1% drained, phone says that "consumption is more that charger can give"...
Right now i think about other usb cable, not using original yet, may be inside it wire diameter too small to fit 1A.....
In fact i changed cable too... And it seems thats everything running ok even with waze on
And problem wasnt really overheating related since I have my car holder in front of air-condition grid... Its always under 30°C Best place for quadcore beast btw
I just use the data cable plugged into the USB adapter.
Keeps it topped nicely.
So not perfectly OK... I was driving long way again yesterday... With Sygic on, and my battery stuck at 71% didnt go down on charger, but didnt rise too.. In fact I started my trip at 80% Well it did the job in fact, but after 3hrs of driving it should be full as any other smartphone... :-\
There us something bad with charging policy in OneXs system... :-\
tombik said:
So not perfectly OK... I was driving long way again yesterday... With Sygic on, and my battery stuck at 71% didnt go down on charger, but didnt rise too.. In fact I started my trip at 80% Well it did the job in fact, but after 3hrs of driving it should be full as any other smartphone... :-\
There us something bad with charging policy in OneXs system... :-\
Click to expand...
Click to collapse
that's because it is using GPS (huge power hog), the screen is on (even bigger power hog) and then the CPU doing the calculations and rendering of the graphics, even with my desire hd it doesn't rise much when using sat nav. its a fact of life. the power consumed by the device is more than the charger can provide.
people have even reported that the mains charger isn't charging it quick enough whilst gaming for instance. (which doesn't surprise me)
Than it is fail of HTC... In fact my LGO2X (in most cases much worst than HTC) Handled it nicelly. HTC doesnt use potencial of charger. It takes only 600mA (top) while charger can deliver 1000mA.... And LG was able to use it....
I modified tiny generic usb car charger (5VDC 1A), so it allows faster charging. When opened up, D+ and D- pins were fed with some amount of electricity to allow iDevice charging, but I simply cut away traces leading to those pins and soldered them together. Phone reports "Charging (AC)". It really is standard method, but "surprisingly" Apple refused to follow standards and generic chargers do not work.
Hi,
i´m not really sure if this question is in the right place here.
After getting my HOX to replace my DHD i would like to know if i can use the DHD Car Charger (original HTC) for the HOX, too?
Thx...
Check out Avantek on Amazon. 2 out of its 5 ports are providing 2.4A, enough to charge your One X at full speed. An awesome product at an awesome price.
dsgoody said:
For the past 2 years on my old Desire I was using a homebrew in car charger I put together myself that would happily provide 1A, but my new One X seems a little more power hungry than that and when in car mode it seems to discharge slowly even though it's still plugged in.
Can anybody recommend anything suited for the One X's huge power drain (homebrew or off the shelf, I don't mind) other than HTC's expensive official one? I was looking at the Belkin ones floating about but they still only provide 1A.
Thanks, Dave.
Click to expand...
Click to collapse
Hi Dave,
I have read your post and i refer you to Amazon web services. You will definitely find there best charger for your devices which is compatible with your car.
Hi guys,
I have a simple MHL connector (ie splits into power & hdmi), to hookup the phone to the big screen. It looks pretty decent, but even when connected to mains, (which it must have otherwise hdmi doesnt work), it loses charge while playing video.
I have tried several players (dice / mx).. all play well, but phone cant keep up with charging & playing at same time..
Am doing some tests to see how bad it draws. When I go into system details, phone shows it is charging via mains.. but it appears it cant put out enough current to charge and play..
Would make a LOT of sense to me that the LCD screen (which draws about 70% of the power) actually switched off during playback via HDMI.
anyone know if this is possible or if they can charge & play a video at the same time..
I seem to be losing about 1% battery every 2 mins.
Can someone else test so i can know if It is just a dodgy MHL I have or if they are all like this. Have tried both SD & HD video.. all quite similar results.
be aware
Use the original charger or one with 5v 1a otherwise your phone won't get enough power for example I know a BlackBerry charger has a lower output
Crabitpig said:
Use the original charger or one with 5v 1a otherwise your phone won't get enough power for example I know a BlackBerry charger has a lower output
Click to expand...
Click to collapse
This was with the original charger unfortunately.
This is the same issue why I wrote that One X is unusable for in-car navigation. Basicaly what happens when under load (navigation, playing a movie, playing a game) is that battery gets into "Overheat" state (you can see this in OS Monitor for example) and stops charging.
My test for car navigation shows that power is drained by 25%/hour when plugged in and Sygic is running. Battery is in overheat state most of the time. This happens at about 50 deg.C if I remember correctly - this looks a little low so maybe they'll tweak it a little, but it doesn't solve the underlying problem really, just delays it...
So I blame crappy heatsink construction or overral internal design, this should not happen under any circumstances (and my iPhone is a marvellous example that it can be done - it is able to navigate and charge at the same time, and gets into overheat only when car ventilation is turned off and sun is shining on its' black body - my One X is white and overheats no matter what I do).
This will sooner or later be the reason why people will start returning their phones en masse...
Get 2 amps charger from eBay, see if it helps. I do have one, but only use it when I really need a quick charge in very shor time. Not advised to use as primary charger, but for powering both: phone and MHL at the same time, it might just do the trick.
schriss said:
Get 2 amps charger from eBay, see if it helps. I do have one, but only use it when I really need a quick charge in very shor time. Not advised to use as primary charger, but for powering both: phone and MHL at the same time, it might just do the trick.
Click to expand...
Click to collapse
I tried this, doesn't work. The problem is not insufficient current, it's overheating.
schriss said:
Get 2 amps charger from eBay, see if it helps. I do have one, but only use it when I really need a quick charge in very shor time. Not advised to use as primary charger, but for powering both: phone and MHL at the same time, it might just do the trick.
Click to expand...
Click to collapse
zvieratko said:
I tried this, doesn't work. The problem is not insufficient current, it's overheating.
Click to expand...
Click to collapse
2a won't work as the phone is limited to 1a
If the battery temp is 48 or over it goes in to overheat state green and red notification.
If you are rooted you could disable two cores see if that helps.
Sent from my HTC One X using xda premium
This same issue came up in the Nexus forums a while back. Evidently, AC charging requires that the USB data lines to be either shorted or have a resistor across them (forget which one). Since MHL is using those USB data lines for video, they cannot be used to signal AC charging capability, so you're stuck with the max USB draw of 500ma. That's way less than the amount of juice you're using, so you end up running the battery down. You should be able to confirm that by noting the charging mode displayed while using MHL.
Sent from my Galaxy Nexus using xda premium
It is solved! Some 3rd-party usb chargers have same issue.
Samsung standard charger works very well.
I have a Galaxy Note 10.1 2014 edition (Hongkong, TGY).
Yesterday I updated my device to 4.4.2 (P605ZSUCNE3_P605OZSCNE3_TGY) with Odin.
Upgrading was OK, everything works fine except a battery charging problem.
When device connects to a usb charger, the battery stops charging after 1-2 minutes although not 100%.
I tried something but nothing helps.
- Changing charger/cable to another
- Factory reset (Recovery mode)
- Flashing P605XXUCNE2_P605OXACNE2_NEE (Nordic) Firmware
- Power off mode charging -> It works. This is the only way to make device 100% that I found.
Click to expand...
Click to collapse
Having same issue. Seems to stop when screen times out
SM-P605 battery issue (I still have one!)
kissfan said:
Having same issue. Seems to stop when screen times out
Click to expand...
Click to collapse
I've got the same issue following the 4.4.2 update, all my third party charges that worked fine before the update no longer work. Battery management software show the device getting the same mA of current to the battery but the device is not charging (it says that it is!).
Original charger does work but is not a valid solution for me, why are the non-oem chargers not working all of a sudden and how do I get them to work again?
---------- Post added at 08:55 AM ---------- Previous post was at 08:06 AM ----------
kissfan said:
Having same issue. Seems to stop when screen times out
Click to expand...
Click to collapse
I've got the same issue following the 4.4.2 update, all my third party charges that worked fine before the update no longer work. Battery management software show the device getting the same mA of current to the battery but the device is not charging (it says that it is!).
Original charger does work but is not a valid solution for me, why are the non-oem chargers not working all of a sudden and how do I get them to work again?
I'm having the same problem, trying to fix with some charger mods (shorting data pins of USB) or fast charge kernel. The kernel hack did not work yet, but shorting the d+ and d+ pins of usb cable on device end works. (although I could achive max 1.5mah)
According to this
http://www.androidpolice.com/2014/0...t-on-the-note-3-but-there-is-a-root-solution/
Samsung denies any intentional blocking and a connection between KitKat and third party accessories.
I tried my third party chargers and they too didn't work. Charging stopped when the screen turned off. However, my Motorola and HTC chargers do work. Maybe the third party tings have inconsisten voltage output or something like that.
I had the new Tab s 10.5 and some of my usb chargers would not work. I found a deal way to good to pass up so I returned the Tab s and THOUGHT I was getting a Note 10.1 2014 wifi. Yet lol I didnt I got a 605 which is AWESOME ..I just always wanted the SnapDragon chip. It was a tad over $400 32gb NEW.
Anyway so I turn it on set it up and it was downloading 4.4 already I wanted to stay with 4.3 after reading around here. Yet so far it works flawless. All my usb chargers work. I can be doing ANYTHING and it keeps charging. Like I said the Tab s I could ONLY use Samsungs.
In my case Android 4.4 for P605 is way better than 4.3. Great battery live, great performance, no or very small lags. But I had initial release of 4.3 ROM which was never updated.
I have a third party charger and it goes well. It is Chinese no marks.
If it is just shorting the data pins, then it will charge. But you will be limited to 1500mah.
I think it needs an Apple compatible charger. Only the Apple standard supports charging over Usb 2 at 2A, for the Ipad.
The Anker 5 port 8A charger is fantastic.
lecorbusier said:
I think it needs an Apple compatible charger. Only the Apple standard supports charging over Usb 2 at 2A, for the Ipad.
The Anker 5 port 8A charger is fantastic.
Click to expand...
Click to collapse
No, I did that mistake and bought a dual port 4a charger. Samsung somehow detects Apple charger and stops charging when screen turns off. I had to make an adapter for shorting data pins, like this, I can at least charge with 1.5a
while i was on vacation my p605 starts having the same problem. It is just loading while the screen is on. After getting black/off it takes a few more seconds till charging stops. This problem is accompanied by the symptom that the tablet won't be recognized by the pc anymore. It is just loading ('til the screen gets black). i have no idea what to do. i am not sure, if the different voltage on vacation could be a reason. based on the fact that i can't get it back to stock, i guess i can not get it repaired by warranty (or is there any way to get it stock? unfortunately mobile odin is not supported). i would be glad about some good hints and thank you in advance
Your cable or charger might have a problem or you may be using a different charger than original one.
Hi everyone,
I've found a bit different issue - my P605 (LTE) does not want to be charged when plugged into USB port (so, no charger is being used).
I tried both using laptop and stationary PC
//ok, nevermind. I've just found somewhere else, that it has been always like that (not noticed that before)
Exact same problem here - charging stops as soon as the screen lock kicks in, even with the original Samsung charger. Brought the tablet back to the tmobile store and had them connect to another Samsung charger - still happens.
Has anyone found a fix for this short of shorting the harger pins?
I don't follow my own advice, and never had this problem. But charge with the original cable where the two GND pins are connected. In most cables one of them is open.
My old Garmin Street Pilot with mini usb used the second GND pin to determine whether to remain operational and charge, or go into pc connectivity mode and do nothing else.
I have the same problem . After upgrading to Kit kat just a few days ago it would stop charging moments after the screen turns off. No matter what cable or charger
This happens to me only when I'm not using original 5.3v charger and original cable. Check your cable and charger. (although I think it works with 5v Samsung charger of my note 3 as well)
My last charger had 4.9v with no load, and certainly lower with a 2A load. No Problems. But if a charger is badly stabilized, it may drop too much, and the Note is very demanding, with twice the current of a typical phone.
I had a DIY adapter to charge my old Nokia stuff via USB. The Nokia chargers have a 5v spec, but one provided 6v, another 7v. And USB voltage seemed too low, there was sort of sporadic charge, with the connection dropping after a short time. But all connections were fine, must have been a voltage thang.
So i still have to keep a Nokia charger ready, only to charge my Nokia BT headset.
Galaxy Note 10.1 2014 Edition Charging Fail
Has anyone discovered a fix for this:
When I plug in my tablet...Samsung Galaxy Note 2014 Edition...Using any plug (I have tried factory charger, and multiple alternatives including Ipad Charging adapters) when the screen is on the charging occurs, but When the screen closes about 2 seconds later the screen turns back on the way it does when charge is complete, only its still at same battery level as before! I have tried closing all apps and still the same, Used Task Manager to close all apps and clear the RAM and still nothing, Gone into app manager and closed running processes and still the same results! I am operating KitKat (OS since purchase) and the only actual way to charge it is to leave a plug in all day with the screen On, or shut off the Tablet!
Is there a fix for this or what?
Its bad enough that I cant find a good bluetooth keyboard that is compatible with this tablet! Im on the verge of trading it in and going Apple! Someone please help...Keep me from turning to Apple!
Is there a fix for this even if it requires manually adjusting chargers or the tablet itself (the internal components)?
thank you all for your help!
Semper Fi
Hi I bought my Nexus 7 2013 used in February. It came with a 3rd party charger and usb cable. It’s worked fine since I got it and it use to charge fine. I would use different usb cables and they would all work. Within the past 2 weeks or so it has become increasingly hard to charge it. Also this started happening on the stock 4.4.4 rom with root enabled. Today I installed a custom chroma 5.1.1 rom just to see if anything changed but it’s the same result it doesn't charge. The chroma rom says it has the Franco Kernel. Not really sure what that means but the stock rom's kernal wasn't changed.
I've left it off and connected charging to the AC for hours and would turn it on and it would have not raised at all in battery charge percentage. When it’s on and I can better see the percentage in this battery app I have installed I noticed if I jiggle the cable at all it will disconnect and connect again. So it might not be making good contact. It does this with every usb cable I have tried on it. However when I don’t move it and have it charging in sleep mode it does see it as connected and it says charging in the battery monitor widget app when I wake it, but it doesn't charge stays at the same percentage or lowers.
There is sometimes where I get lucky and it starts charging but it’s becoming increasingly tougher to get that to happen. I haven’t had any luck since last night messing around with it with different cables. I've even tried charging it on my PC but it’s the same result. It says charging but it doesn't charge. However if I do connect it to the PC I can view the files on the Nexus 7 fine as long as I don’t move the Nexus 7 much. I've also tried the AC adapter on my phone to see if it works and it works fine and charges. I've tried a kindle fire 9w charger on the Nexus 7 and that doesn't charge either.
Any idea what’s the problem? If I buy the official AC charger do you think it would work? Am I better off buying a Qi wifi charger? I rather not waste money on the AC charger if there is a good possibility of it not working.
Hi,
I seem to have the same problem recently. I am running on 20150519 CM12.1 nightly right now but this problem started to occur about 2 weeks ago i.e. with an older nightly version running...
It really feels like the USB connector is broken. I have to move it the same way headphones jack has to be moved when it is broken. Have you tried more different chargers? I did but no solution.... Now I got it luckily charged to 90% and I am making a quick backup.
Do you have still warranty? I technically do but would need to get back to stock and lock the bootloader back.
I found threads on how to get back to stock via USB connection but is it possible to lock the bootloader without being able to connect USB to computer?
No unfortunately I have no warranty since its a used item. I tried the 3rd party cheap charger, amazon kindle fire charger and my phone charger on it they all don't charge. I think you can replace the USB board on it but that would require opening it up and doing the repairs yourself. I think I will just get a Qi charger and see if that works. I kinda don't want to spend money on that just to find out its my battery that doesn't work. I am not sure what the problem is since I can connect the nexus 7 to my PC and it will see it and its files fine. So I know the USB port works at least a little bit.
It's a sub-board (usb-sim-touch module) issue. I would reccommend using a wireless charger as a quick fix since the wireless charger module is located on the motherboard itself so you should be good.
I may have a few sub-boards for the 2013 lying around but i'm not sure if they're 100% okay - as in calibrated, tested and fully functional. Also, i'd need to know if yours has LTE or not.
I have a Nexus 7 2013 32gb wifi edition. Thanks for the info. I put in an order for one of those wireless chargers.
MobRookie said:
Hi, I seem to have the same problem recently.
I am running on 20150519 CM12.1 nightly right now but this problem started to occur about 2 weeks ago i.e. with an older nightly version running...
It really feels like the USB connector is broken. I have to move it the same way headphones jack has to be moved when it is broken. Have you tried more different chargers? I did but no solution.... Now I got it luckily charged to 90% and I am making a quick backup.
Do you have still warranty? I technically do but would need to get back to stock and lock the bootloader back.
I found threads on how to get back to stock via USB connection but is it possible to lock the bootloader without being able to connect USB to computer?
Click to expand...
Click to collapse
eureca said:
I have a Nexus 7 2013 32gb wifi edition. Thanks for the info. I put in an order for one of those wireless chargers.
Click to expand...
Click to collapse
perhaps you did that already, but from experience i must say that in 9 out of 10 cases it's the cable and 8 out of 10 cables are mediocre as compared to how it could be. no why i say that ist because i tested something between 50 and 60 cables during the last 2 years because i had similar issues and bought a special ampere and voltmeter with with the correct usb ports to measure the flow, same device, same power source, thus as empiric as possible result most cables charged between 0.9 and 1.1 A while about 10% were half of that and only few charged at 1.5A while 3 charged at between 1.9 and 2.1A. understand me right, same device, same charger, sam place all same condition, in car, on motorbike, on wall plugs. only significant difference were the cables. so check those first before taking more costly path which then only remain workarounds.
BTW amongst the bad ones were many that came out of the box with the devices and from different oems but many samsung original cables.
what i did i painted the ends of each cable with red for bad, yellow for ok, green for good and the outstanding ones already had a color, it were the stock cables from the oneplus one which had the best charging rate. good luck
Ok, well...
I'm Korean, and I've searched almost every Korean tablet forums, yet can't find the reason :crying:
So I came to here, XDA.
The problem is, my Tab Pro 8.4 won't charge at all.
It's looks like an usual charging problem of Tab Pro 8.4, however, mine's little bit different.
With the charger plugged in and tablet is on, I can see the lighting shape on the battery icon at the status bar (which appears the charger is plugged in) ,
but no matter how long I charge the tablet, it's 0% and turn off after like...10 secs.
With the charger plugged in and tablet is off, I can see the battery pic appears on the middle of the black screen.
BUT, like the former situation, no matter how long I charge the tablet, I turn it on and it dies quickly.
SO, my problem is this, and i can't find a tiny reason why my tablet got (or how to fix) this battery problem.
Never seen a battery problem like I have right now.
I got several ideas about this. (Hope this will help you to fix my situation )
1. My tablet's rom is not pure. (But not rooted.)
As far as I remember, I applied the Ukrainian version about 3 weeks before.
Is it possible the this is the reason?
If so, wiping the original rom and applying the new one would help me?
2. Is it possible that the battery and the tablet connection got a problem?
If so, open it by myself and re-positioning the battery would help me?
3. The battery charger part might be damaged.
Then it leaves me the one option {GO TO THE SERVICE CENTER} ?
4. well...not 4.
have no idea.
Using same charger which is official SAMSUNG's.
I will keep monitoring this thread.
Little help to poor man would be really grateful, THX
PS
I just tested download mod.
With the charger is plugged in, it's working.
to see if the charger is bad, fully shut tablet down and then try to plug the tablet into a USB port on a computer and wait about 8 hours, then unplug it and see if the tablet holds any charge (battery might still be low but it should have enough charge to run awhile), if above works then it means you need another wall charger (5v 2.1A).
if it still just powers off or dies then it means the battery is bad or not connected or something else is wrong with it.
1. Try another USB cable
2. Try another 5v 2.1A wall charger
3. Try charging on a PC
4. replace battery.
To verify your tablet is charging, you need this little tool
http://www.ebay.com/sch/i.html?_fro...usb+power+current+and+voltage+tester&_sacat=0
Current should be 1.5 to 1.7 Amps, voltage should be 5 to 5.2 V
If the charging current is under 1.5 A, you should change different USB cable or adapter
If cable and adapter are fine, the next is charging port, it's easy to replace if your is defective.
Never use usb port on computer to charge, it only supply 0.5 A and your tablet needs at least 2 Amps for charging properly.
These are basic steps you need to do, without basic information I cannot tell what is wrong with your tablet: not charging or bad battery, or the worst: bad main board.
The one you have to verify: your tablet is drawing normal charging current around 1.5 to 1.7 Amps when plugged in. You can not troubleshoot problem just by guessing.
The most common problem of Samsung tablets are cracked Battery connector, a simple re-solder will fix the charging problem.
There are many unknowns, you have to eliminate charger, usb cable, usb charging port as the source of problem first. Then next look for battery or battery connector.
Otherwise, you will confuse yourself and others what causing the problem. Elimination is the key to figure out problem from many unknowns, one by one at a time. There's no short cut , otherwise, you can not figure out where the problem comes from.
I see many users send their tablets for service and the problem just comes from a bad cable because they have no idea what's wrong with their tablets.
Beut said:
To verify your tablet is charging, you need this little tool
http://www.ebay.com/sch/i.html?_fro...usb+power+current+and+voltage+tester&_sacat=0
Current should be 1.5 to 1.7 Amps, voltage should be 5 to 5.2 V
If the charging current is under 1.5 A, you should change different USB cable or adapter
If cable and adapter are fine, the next is charging port, it's easy to replace if your is defective.
Never use usb port on computer to charge, it only supply 0.5 A and your tablet needs at least 2 Amps for charging properly.
These are basic steps you need to do, without basic information I cannot tell what is wrong with your tablet: not charging or bad battery, or the worst: bad main board.
The most common problem of Samsung tablets are cracked Battery connector, a simple re-solder will fix the charging problem.
Click to expand...
Click to collapse
You can charge from a computer fine just as long as the tablet is fully shutdown first (so you see the battery icon scrolling), this will ensure the 500ma will go directly to the battery and not running the tablet and os, it will charge very slowly but it will eventually reach 100% as nothing is drawing power from the battery to drain it (though I would only charge to 20%, to see if it holds a charge), however this method is just for diagnosing if the charger is bad and have no current alternatives, obviously this should not be a long term solution and never used when the tablet is running, but rather to see if the battery can hold any charge at all.
if you have another 5v 1+A charger laying around then use that instead., if the charger is the problem you can pick them up pretty cheap off ebay (make sure the hallmark icons and model number match to avoid knockoffs)
otyg said:
if you have another 5v 1+A charger laying around then use that instead., if the charger is the problem you can pick them up pretty cheap off ebay (make sure the hallmark icons and model number match to avoid knockoffs)
Click to expand...
Click to collapse
To see what is wrong with charging problem, you should never use wrong charger like 5V, 1 A or a USB port on computer. If using a 5V, 2A charger and a correct USB , any reading is under 1.5 A, there is something wrong with charger, or USB cable, or USB charging port, or battery connector. Even wrong USB cable, the one has only max of 1A, also is the source of slow charging.
His issue is not with slow charging, it was as soon as he unplugged it the tablet instantly powered off, in this case if the battery is 100% dead then damage is already done and once a lithium battery is completely discharged then most likely no charger whatever the mA is will bring it back...this is why I was saying to charge it from whatever source since you need to get a charge into the battery before it's irreversible damage.
However after re-reading ops post I think it's safe to rule out the charger as the problem because he said he could run the tablet with it plugged in (so that means the Charger is providing enough power to run the tablet) according to my mA reader this alone is around 500-700mA in standard use / full brightness
This also mean we can rule out a bad Micro USB port on the tablet since a broken one wouldn't allow power to the tablet.
the problem likely lies with a bad battery or a bad battery connection, the probably only option at this point would be for him to have samsung service it or take the chance to replace the battery.
(BTW I have all the tools nessasary and I know what can and can't charge this tablet)
Yes I know it needs a 2.1a charger to charge it while it's actively running since a good portion of that power will go into running the tablet and LCD if needed, it does not need a 2.1A charger when it is powered off and 500mA to 2.1mA will still charge it.
Three is a thread here talking about reseating the battery. Look it up. That may help.
Agree with otyg. I recently had a similar problem. My galaxy tab s 8.4 would power off immediately after being removed from power. It would register as having 100% charge while turned off, but once powered on, the tablet would show 4% charged or lower. Another thread on this site mentioned that the battery contacts on the motherboard have cracked for some owners creating symptoms like ours. I resolved the issue by applying a low resistance conductive adhesive to the cracked pins linking the battery to the motherboard. If this happens to be your problem be very careful because there are other contacts next to the battery pins. Good luck!