Database Users

No touchscreen on a/c power!

When I use my sprint charger everything is fine I can use the phone/screen with no problems...but any other micro usb causes the phone to lock up on the screen....any1 else having this problem? Any solution?
Sent from my SPH-D700 using XDA App

tcat025 said:
When I use my sprint charger everything is fine I can use the phone/screen with no problems...but any other micro usb causes the phone to lock up on the screen....any1 else having this problem? Any solution?
Sent from my SPH-D700 using XDA App
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I made a post about this the other day. Mine seems completely random. My phone will completely lock up and it requires a battery pull. I can go a week using the same charger and it may not do it then out the blue it will lock up.
Sent from my SPH-D700 using Tapatalk

It makes no sense at all! Never had this problem with any other phone ever before
Sent from my SPH-D700 using XDA App

I had the same problem using a clone travel charger from ebay. I also had a clone usb cable that won't recognize the Epic as a mass storage. I bought from this guy on ebay that sells OEM Samsung accessories and they all work perfectly for me.

Be very careful with these things, folks... many charges can have terrible voltage regulators on them. You don't want to kill a very nice phone now, do you. Stick with a good charger and cable. I use the stock cable and the Palm Pre charger cable. I've never had screen issues or lockups with other chargers, but I only use the Palm and Samsung chargers, to be honest.

Yes, be wary of cheapo chargers!
I was able to get a OEM Blackberry MicroUSB charger off amazon for about 4 bucks shipped and it works fine to charge my Epic. My friend also gave me one of her extra HTC chargers which came with her EVO and they also work fine.

my charger is a 800ma sanyo which should not cause issues. I have not had the issue within the past week either.

Guys, check the output voltage of your chargers... specially on the cheap ones. its supposed to be no more than 5V. I broke my Hero's screen with a cheap charger with 5.5 V output. It starts by acting weird , then it looses touch capability when its connected and then stops working at all...

Random screen behavior while charging

It's probably easier to show what's happening with a video:
This happens when charging my phone. But only when placed on a hard surface.
Also when the phone is resting on a surface, it doesn't respond to my touch input.
It acts as if there is an invisible hand touching the screen in random places very rapidly.
I hope this isn't a defective screen, because I'm sure this isn't normal behavior.
My problem is almost exactly the same as this: http://forum.xda-developers.com/showthread.php?t=846941, but the explanation doesn't fit in my case, as it's very hot here (high 30's C), with almost 100% humidity, and the phone isn't the same as mine.
Has anyone had a problem like this with the DHD?
On a side note, does anyone else think of "Dial Home Device" from Stargate when they see DHD, or is it just me?

Mine started doing this a while ago. Also only when charging, and only on a hard surface. Bit annoying, but I can get round is easily. Would be interesting to know what causes it though...
Sent from my Desire HD using XDA App

Mine does this when I'm using a cheap ebay charging cable. It's ok when using a genuine HTC cable.
Sent from my Desire HD using XDA App

Just tested mine again, and it seems ok. Very weird. Was using the same cable too (HTC one). Maybe it bugs out sometimes when it's next to my PC. Seems ok right now.

mjt said:
Mine does this when I'm using a cheap ebay charging cable. It's ok when using a genuine HTC cable.
Sent from my Desire HD using XDA App
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Anyone confirm this?
I've just bought 2 cables (cheap, retractable) from ebay for emergency use... :'(

Seen demo/display phone acting like that in best buy although phone wasn't flat but on sort of a stand and always on charge...
Sent from my Desire HD using XDA App

It has been discussed and confirmed earlier. It happens with cheap non-genuine chargers.
The solution is to use only the genuine charger.

I should add I do have a cheap charger and data cable from ebay that do work ok, so this problem is not universal across all non-HTC accessories.

andreasy said:
It has been discussed and confirmed earlier. It happens with cheap non-genuine chargers.
The solution is to use only the genuine charger.
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Lol!
I only use genuine charger and battery no matter what but I hope the cheap cable would not cause this. It's just a cable anyway...
By the way, can you provide the link for the said discussion for my joy reading?
Thanks!

I had this the other day I was holding the phone and had it plug in the HTC charger. I was browsing the web and could not move up and down it just zoomed in or out like I had two fingers on-screen I restarted the phone but still did it I then unplugged it and it was ok.
Sent from my Desire HD using XDA App

Just some extra details here, the charger I was using in the video was a generic usb charger, but using the genuine charger doesn't stop the problem.
The screen is in perfect condition, not a single scratch, phone is less than two months old and I only have a genuine cable.
Also this happens on ANY hard surface, a book, tiles, wood, but soft things like wool or upholstery don't cause any problems.
Sent from my Desire HD using XDA App

lachlanarthur said:
Just some extra details here, the charger I was using in the video was a generic usb charger, but using the genuine charger doesn't stop the problem.
The screen is in perfect condition, not a single scratch, phone is less than two months old and I only have a genuine cable.
Also this happens on ANY hard surface, a book, tiles, wood, but soft things like wool or upholstery don't cause any problems.
Sent from my Desire HD using XDA App
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Sounds like a proximity sensor issue.

I had this exact same problem as shown on the video on both the HD2 I had previously and the DHD. In both cases the culprit was not the cable but a cheap charger.

What the...never seen s.th. like this before...
Faulty phones?
DN41
Sent from my Desire HD using XDA App

Same **** here ;-(
Happens when using a eBay noname docking station! Phone is not laying on a surface! The last time i charged with this docking station there was no problem.
I will try the htc charger...

Slightly off topic but whilst my DHD is charging, if I run my fingers across the aluminum body it feels like its vibrating. I had this on my Hero too.
I'm almost positive its the current, as unplugging it stops the "vibration".

the erratic behavior of the DHD is caused by improper grounding, as the small current from the ungrounded charger is passed on to the phone's body, mostly by a other then HTC cable, there will be a current on the phone, small, but none the less there, as the digitizer measures the electric resistance against the screen on spots, as a human finger(flesh somewhat differs from nothing or non organic objects touching it) it measures a touch, this small current also can give a false touch, thus creating this erratic behavior.
hope this explains it clearly to you all.
so, if you properly ground the phone somehow, it will stop

Be VERY Cautious (Wrong Charger)

I've come across a second individual on this forum who has ruined their phone by using an incorrect charger within the last week. I can't stress the importance of making sure you are using valid chargers. Samsung ports are VERY sensitive and from personal experience are expensive mistakes to make. One MAJOR thing I've noticed that most seem not to is the following:
When the phone is plugged in and charging, you notice it becomes less responsive and or buggy while texting or unlocking. Also while charging, haptic seems to get stuck or seems to happen at random intervals when using the phone. Another major one some completely ignore, when the phone actually pops up a notification to enter usb mode while plugged into a charger and not a computer.
Just a warning...

Any more details on what conditions are problematic? I've been using non-Samsung chargers and cords since September with no issue.

I've been using a BlackBerry (Storm1) charger on mine since Christmas with no problems, I mainly use it as I need a much longer cord length than the Samsung.
I also used it on my D1 with no problems.
Still, I'll keep an eye out for glitches, thanks.

I purchased a Samsung OEM charger from Amazon.com (marketplace) for less than $5 to use at my desk at work. I found it by going to samsung.com, finding the item number of the charger I wanted, and searched Amazon that way. It's not a detachable USB charger like what came with my phone, but I assume it's legit. I mean who would manufacture and sell counterfeit phone chargers?

yeah I am curious about this too; I just took USB as to be universal

You can use any charger you want so long as it supplies the correct voltage.
that is electronics 101

I get the USB prompt when charging in my car because it is supplying the voltage that a computer would supply, and less than what an AC charger would supply.

AnotherLameUser said:
You can use any charger you want so long as it supplies the correct voltage.
that is electronics 101
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Negative ghost rider...I've encountered those that have different pin layouts before, fried my samsung moment...but it is true, voltage is key.

You also must be aware of the amperage of the transformer in the charger.. if the amperage is too low it will cause a voltage drop
Rocking dj05 and jt's voodoo 5

jenisiz said:
Negative ghost rider...I've encountered those that have different pin layouts before, fried my samsung moment...but it is true, voltage is key.
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USB is a standard, why would it have a different pin layout?

I'm using a "rocketfish" micro USB cable and USB ports to charge my fascy. Could this pose any issues?
Sent from my SCH-I500 using XDA App

Skrazz said:
I'm using a "rocketfish" micro USB cable and USB ports to charge my fascy. Could this pose any issues?
Sent from my SCH-I500 using XDA App
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Check to see the stock setup and compare. I just decided to post this as a word of caution b/c I was questioned earlier if it was normal that their phone would loose sensitivity and act choppy when plugged in.

jenisiz said:
Check to see the stock setup and compare. I just decided to post this as a word of caution b/c I was questioned earlier if it was normal that their phone would loose sensitivity and act choppy when plugged in.
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My touch screen would act weird when on the stock rom using the SAMSUNG USB cable and charger that came with the phone.

Prince135 said:
My touch screen would act weird when on the stock rom using the SAMSUNG USB cable and charger that came with the phone.
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Then something is wrong. If you notice it starts jumping around when plugged in, there is a flux in flow or some of the pins have been messed up.

Prince135 said:
USB is a standard, why would it have a different pin layout?
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Click to collapse
USB itself is a standard (it will always output 5v at up to 500mA). Charging over aUSB port its defined by the manufacturer, and can vary greatly.
Sent from my SCH-I500 using XDA App

AlexDeGruven said:
Charging over a USB port its defined by the manufacturer, and can vary greatly.
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I read that in more of a "what kind of a sadist would design his micro usb charger to behave differently from another?" kind of of way. It's a heck of a cruel practical joke given that
A) phone makers have finally standardized to micro usb after already creating a huge mess with chargers in the past.
B) micro USB is practically exclusive to mobile devices.
C) if there really are cables that use different wiring, there is no easy way to tell.
FWIW I am getting by just fine with a ultra cheap Chinese USB car charger and micro USB cable combo. I also have interchangeable Plantronics, LG, and generic AC USB chargers that I plug ight same cables into. No issues, luckily for me. Pretty disappointed to find out I have dodged a bullet here.
NOTE:
LG: 0.2A in, 5.1V, 0.7A out
Samsung: 0.15A in, 5.0V 0.7A out

jenisiz said:
Then something is wrong. If you notice it starts jumping around when plugged in, there is a flux in flow or some of the pins have been messed up.
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Click to collapse
But the thing is, after I flashed a new rom, I had no more problems.

AlexDeGruven said:
USB itself is a standard (it will always output 5v at up to 500mA). Charging over aUSB port its defined by the manufacturer, and can vary greatly.
Sent from my SCH-I500 using XDA App
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The wonderful thing about standards is that there is so many to chose from. : /
I've been dodging the bullet too with my cheapo car charger although strange behavior would have thrown up a flag.

When I visited my parents and used my dad's charger my screen would not work when plugged in.
I guess I should consider myself lucky...

Been using cheap,knock off chargers we sell at work since day one never had a problem, also use an after market droud one charger at night. come to think about it I never really use a sammy charger
Sent from my SCH-I500 using XDA App

Different charger matters !

In some of the post i had read that touch sensitivity is affected largely when charging the note.I was wondering how mine works smooth without any problem ?
But once i connected galaxy s's charger to note and it influenced the note sensitivity, some touches dint get recognised, too much lag, slow......
When connected back to original charger, was working fine again.
So to summarize, original Note charger doesn't cause any problem with note, but if you connect other android charger to it, it affects touch sensitivity.

I am using an LG adapter since the original that came with Note has a hissing sound when not in charge, and its working fine with no probs.

My charger is the opposite. My Note charger is so bad that when my morning alarm goes off I have to unplug the phone because it doesn't recognise my finger sliding across the screen. I am now using my old iphone charger which is perfect.
To find which was the best I tested them all plugged in individually and used the touch and s-pen tests using the *#0*# test screen.
I tested quite a few various usb chargers that I had around the house and all had different results.

I have encountered this issue with the original charger too. not sure if its an issue with the lcd screen because i previously went to the service centre and apparently they told me they changed my lcd screen and it has in fact gotten worse after the servicing.
any idea what my next step should be?

Anyone using a charger that's under the 1A rating as the original has? I have a bunch of 700 mAh Samsung ones and an afraid to use a lower voltage on the the 2500 mAh battery...
Sent from my GT-N7000 using xda premium

What I heard, its normal that touch sensitive got affected, when using the phone, while charging and that's one of the flaw with AMOLED screens.
Maybe someone can confirm it?
Sent from my GT-N7000 using Tapatalk

ericshmerick said:
Anyone using a charger that's under the 1A rating as the original has? I have a bunch of 700 mAh Samsung ones and an afraid to use a lower voltage on the the 2500 mAh battery...
Sent from my GT-N7000 using xda premium
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Click to collapse
they all deliver the same voltage (5V). the Mah rating just changes how fast it charges up.

PANTS !!!!!
The note behaves this way with various roms, mainly KL based, with or without usb cable plugged in and regardless of what charger you use.
You should check these things first, hence why KL7 was pulled by samsung.

I'm using my HD2 charger, and it seems okay.
Can any other ex-HD2 users confirm this?

I used and old SGS charger for a while.. And a very small part of the touchscreen became unusable while charging.. With the charger that i got with the Gnote that problem doesnt exist..

I used the Samsung charger that came with my note for awhile but switched back to my original iPhone charger(The bigger one not the small new ones) both worked fine no issues with the screen or anything. Do notice that the Samsung charger gets hot after a full charge and my iPhone charger didn't other than that no issues.
Sent from my GT-N7000 using Tapatalk

DPMAce said:
I'm using my HD2 charger, and it seems okay.
Can any other ex-HD2 users confirm this?
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Click to collapse
I am using a desire HD charger which was my last handset, I am not having any issues while using the s pen on the note. Everything seems to be working fine.

HasC said:
I am using a desire HD charger which was my last handset, I am not having any issues while using the s pen on the note. Everything seems to be working fine.
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Click to collapse
+1 same with me, dhd charger & its cable..no problem
Disagree with the OP ;P
Sent from my GT-N7000 using XDA App

I have been using a Galaxy 5 charger, a GALAXY SII charger and a Nokia USB cable. No screen screen issues here either.

dt33 said:
What I heard, its normal that touch sensitive got affected, when using the phone, while charging and that's one of the flaw with AMOLED screens.
Maybe someone can confirm it?
Sent from my GT-N7000 using Tapatalk
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Click to collapse
It's not just AMOLED screens, but rather many touch screen smartphones. My Original Droid and my current Droid X both exhibit touch screen abnormalities when plugged in. I have also heard of iPhones exhibiting issues as well. I've heard changing out chargers does help.

I've also been using my iPhone charger and have not expeirenced any problems with the sensitivity of the screen.

I charge my SGN at night.
I have noticed that my Note gets 41 degree Celcius next morning using an SG2 charger.
On the other hand, if I use a third party charger - 23 degree Celcius next morning.

I have been using a 550ma Sony Ericsson charger for a couple of months and i have had no problems, I have never used the htc supplied one.
John.

Suddenly...... Nexus 7 is not charging up

I have been using my nexus 7 2012 for a year now .. it worked brilliant .. but now this horrible issues has sprung in from nowhere .. the battery wont charge up, or rarely it does,, but very slowly. i am running stock 4.4 unrooted . i have checked my ports for dust, swapped several cables and chargers (also used the original charger and cable). but with no luck. Surprisingly the problem appeared suddenly, one day it charged normally , the next day i left it on charge at 60% and returned to find it on 59%.. help me .. this is driving me crazy

Install the Battery Monitor Widget - should give you an idea of charging/power consumption. I'm assuming you've tried using the stock charger and cable?

http://forum.xda-developers.com/showthread.php?t=2559758

Mroid said:
Install the Battery Monitor Widget - should give you an idea of charging/power consumption. I'm assuming you've tried using the stock charger and cable?
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Click to collapse
Yes i used stock and non stock chargers and cables .. i am using battery widget reborn app to monitor the battery stats.. i also attached the screen shots but for some reason they are not showing up

I think your battery connector is messed up. U might have to open your tablet and disconnect then reconnect the cables.
Please ignore my spelling mistakes. English is not my native language.

xateeq said:
I think your battery connector is messed up. U might have to open your tablet and disconnect then reconnect the cables.
Please ignore my spelling mistakes. English is not my native language.
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What should i do now coz the situation is worsening now .. it isnt charging up at all .. instead it discharges while plugged in

abdullahsulman said:
What should i do now coz the situation is worsening now .. it isnt charging up at all .. instead it discharges while plugged in
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Click to collapse
Search in the forum people have fixed it many times u have top open up your tablet and dc/rc yout battery.

]I too have this same issue....
I have the official dock and never had any charge issues until yesterday....
While it's in the dock, it clearly shows it charging and yet the battery meter appears to be losing charge...
I have tried with the original cable and plug among other cables and yet nothing...
The only way for me to get charged is to turn the unit off and yet it still charges painfully slow...
Anyone with a solution other than opening the thing up and hoping it's the plug?
I am running 4.4.2

Mine's having the same problem. It seems to be a hardware problem.. It's charging very slowly or can't be fully charged.
* I have other devices running 4.4 without charging problems.

Mine started with the 4.4.2 update....
It's very strange... If I turn it off and charge... it charges (again) very slowly.... 3 hours and I went from a 2% charge to 59%...
Doesn't matter if I use the dock or plug it in direct.....
So, to me... I would say a software problem... I just don't want to do a full reset and re-install if I don't have too...

my wife's was all the way dead today after not being used and wouldn't turn on. left it plugged in for 30 min and it powered on with only 2% battery. i t is stock unrooted and everything was all good until 4.4.2 is now charging very slowly. I switched to a non oem usb wire with the asus charger to see if it helps. it is the only stock android in my home (out of 7 devices) and I plan to keep it that way for now.

I've been having this issue for about a week and its not fixed. Anyone here can link me to the post where the guy DC/rc his cables? I'll try anything
Sent from my GT-I9100G using Tapatalk 4

iXanza said:
I've been having this issue for about a week and its not fixed. Anyone here can link me to the post where the guy DC/rc his cables? I'll try anything
Sent from my GT-I9100G using Tapatalk 4
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Click to collapse
You can find it on youtube.. Just search for Nexus 7 battery fix.. I've tried on both my wife's and my Nexus 7 but it's not helping. Be careful not to break any connectors..

iXanza said:
I've been having this issue for about a week and its not fixed. Anyone here can link me to the post where the guy DC/rc his cables? I'll try anything
Sent from my GT-I9100G using Tapatalk 4
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Click to collapse
N7 is very easy to open and close back.
I had the EXACT same issue 2-3 times this year and disconnecting the cable and reconnecting it back fixes it EVERY TIME.
The battery cable is short and the battery is loose so movement pulls the cable out. Not all pins are touching so it results in poor contacts or no contact at all.
Its a design flaw that can also be fixed by sticking a folded paper under the battery.
Voilà!
Sent from my Nexus 7 using XDA Premium HD app

ren2008 said:
N7 is very easy to open and close back.
I had the EXACT same issue 2-3 times this year and disconnecting the cable and reconnecting it back fixes it EVERY TIME.
The battery cable is short and the battery is loose so movement pulls the cable out. Not all pins are touching so it results in poor contacts or no contact at all.
Its a design flaw that can also be fixed by sticking a folded paper under the battery.
Voilà!
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
I'll try that when I get home. My n7 has not been charging for so long its starting to scare me. I tried pushing the cables in but it seems like its pushed as far in as it'll go.
Sent from my GT-I9100G using Tapatalk 4

Ok...
I have opened it up and reset the battery cables...
They originally looked pretty secure though... pretty tight....
Here's hoping that unplugging and plugging the battery back is solves the issue...
I be back....

ren2008 said:
N7 is very easy to open and close back.
I had the EXACT same issue 2-3 times this year and disconnecting the cable and reconnecting it back fixes it EVERY TIME.
The battery cable is short and the battery is loose so movement pulls the cable out. Not all pins are touching so it results in poor contacts or no contact at all.
Its a design flaw that can also be fixed by sticking a folded paper under the battery.
Voilà!
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
Tried unplugging and replugging but it's still the same. I think it's my charging connector though. It randomly disconnects when I plug it into the PC. Tried with 3 different cables even the stock one. But I'm not sure if it's the port or the battery. It charges up to < 60 slowly but it doesn't go beyond that and starts draining. Thinking of selling it and getting a flo instead
Sent from my GT-I9100G using Tapatalk 4

iXanza said:
Tried unplugging and replugging but it's still the same. I think it's my charging connector though. It randomly disconnects when I plug it into the PC. Tried with 3 different cables even the stock one. But I'm not sure if it's the port or the battery. It charges up to < 60 slowly but it doesn't go beyond that and starts draining. Thinking of selling it and getting a flo instead
Sent from my GT-I9100G using Tapatalk 4
Click to expand...
Click to collapse
Just a thought, but another possibility is that the ribbon cable to the USB/headphone jack flex assembly has worked loose to the point of intermittent connections. See "step 10" of iFixit's N7 teardown
Or, if the connector itself is mechanically damaged, maybe there is some way to buy just that Asus sub-assembly. Anyone have a source?
picture of sub-assembly ->
Edit - wow, folks are selling them on eBay for US $50. yikes.

I have the same problem, I purchased a nexus 7 charging dock from Amazon and it charges flawlessly. The dock charges using the 4 pins on the side of the tablet. BTW...The charging dock is under 24.00+ Shipping.
Sent from my Nexus 7 using xda app-developers app