Database Develop

unresponsive screen when plugged in

Hello, I have could this problem is happening to other people but. Haven't could a solution for it.
Whenvi Plugg my galaxy into the charger the touch screen either doesn't respond or pressing in a spot I haven't pressed. I think this problem is because the screen is capacitive but this doesn't happen at all with my ipod touch.
This makes the phone impossible to work with with while its plugged in
Any solution for this?

it might be defective
or simply it needs to be re-calibrated
mine doesn't do it
but i have read on the forum many people had the same problem as you do
they either took it back for warranty or got it fixed some how
i think it should work as soon as you recalibrate the touch screen when it's plugged in

How do I calibrate it?

Are you not using the original charger?

I'm getting this too, with the original charger, but not with a usb charger.
Seems to be related: http://ip208-100-42-21.static.xda-developers.com/showthread.php?t=700612
And this: http://ip208-100-42-21.static.xda-developers.com/showthread.php?t=673330
Happens with my brothers I9000 too! D:
On mine if I'm not TOUCHING the phone case or it's charging the touchscreen gives unreliable input.
90% of the time this isn't a problem because I have to hold the phone in order to use it.

Sorry to dig up an old thread, but I just got this phone and I am having the exact same problem. Using either the original charger or an apple ipod charger I have the same issue. It also happens on the original ROM and on Darky's. It works fine while it's plugged into a computer and charging though.
Has anyone been able to remedy this problem without sending it in for warranty repair?

hi, i get this too, only happens when plugged in.
anyone find a fix?

ok, i kinda found it out.
Its because the charger being used isnt properly grounded or something which means there is a small electrical charge being picked up the screen which causes the screen to jump about. Doesnt happen when the phone isnt plugged in or when its being charged via micro usb connected to my laptop so I think the charger is to blame not software

according to someone else its because of
It will be high-frequency noise on the DC output voltage of the charger. Chargers use a high-frequency DC-DC converter method and the cheaper ones don't do a very good job of filtering the high frequency out of the DC at the other end. This noise enters your phone and plays havoc with the sensitive circuits in the capacitive touchscreen.
It is nothing to do with grounding of the input side of the power supply; when you ground the output side (the USB plug) with your hand, your body capacitance filters out some/all of the noise.
but anyway at the end of the day its still a fault with the charger whatever the technical details maybe.

Is there a charger out there that will not experience these problems?

sk1d said:
Is there a charger out there that will not experience these problems?
Click to expand...
Click to collapse
I have the same problem with the original charger. But by using the charger that came with my logitech mouse, I have eliminated the screens erratic behaviour while charging. The original charger is collecting dust now.

gammalerik said:
I have the same problem with the original charger. But by using the charger that came with my logitech mouse, I have eliminated the screens erratic behaviour while charging. The original charger is collecting dust now.
Click to expand...
Click to collapse
Could you post some details about your charger? 2/3 Pin? voltage? amperage? Input/output amounts? etc...

sk1d said:
Could you post some details about your charger? 2/3 Pin? voltage? amperage? Input/output amounts? etc...
Click to expand...
Click to collapse
The wall-charger has an output of 5V, 1A. Input is 100-240V, 50/60Hz, 180mA. Looks like 3-pins. It came bundeled with my Logitech G700. Also, when I plug the phone in, I get those three choices you usually get when charging from a pc: "Kies-mode", "mass storage" etc. I just press return on my phone when I see this. So it seems as if this charger is a bit more advanced with some kind of chip in it. Perhaps any Logitech/Microsoft-charger will do.

gammalerik said:
Looks like 3-pins.
Click to expand...
Click to collapse
Pin was the wrong word, I meant prongs. Does it have two or three that go into the wall socket? The third being the grounding wire.
I have a charger for my bluetooth headset but it only outputs 550mA. Is that enough to charge the phone. The original is 700mA.

[Q] Unresponsive Screen Charging

I've been using third party chargers for a few days since my original email charger broke. However whenever I'm using the phone with a third party one the touchscreen is a bit less sensitive and responsive. However, I as soon as I take it out it behaves as normal. I wonder if this happens to anyone else? And also can it cause long lasting damage to the phone?

I too have the same problem.. its not that quite responsive when its charging.. Im using by the way the latest stock LC2.
I think this is inherent irregardless if your using the stock charger or any 3rd party charger for that matter. This issue is not on the chargers actually but on the 'laggyness' on the Note's screen when your using it (while it's charging).

iftheman said:
I've been using third party chargers for a few days since my original email charger broke. However whenever I'm using the phone with a third party one the touchscreen is a bit less sensitive and responsive. However, I as soon as I take it out it behaves as normal. I wonder if this happens to anyone else? And also can it cause long lasting damage to the phone?
Click to expand...
Click to collapse
+1 Also observed this when charging from a friend's HTC charger, also read a thread about this a while ago, although there was no definitive answer from what I read, just people reporting the issue...
Sorry mate, no solution from me, but you can be sure you're not the only one experiencing this issue.
I'd imagine it has something to do with the fact that the charger may not be able to supply the power that the larger Note battery needs...
LE: No, charging with its original charger or my S2 charger, or even my Galaxy Ace's charger does not make it less responsive. HTC charger...does

Used to have same problem with iphone too. Cheap Chinese chargers have same effect.
Sent from my GT-N7000 using XDA

I think from a simple deduction, when your charging, your actually charging the phone's screen itself. Now this maybe wrong but I've read somewhere that what's mainly holding the power on all touchscreen phone is the actual screen itself.
So if your charging the phone, your actually charging the screen and if your using the phone(naturally using the screen itself) you are in effect disturbing the charge because the power it needs to fill up to recharge the phone is being use also to discharge it (thru constantly using the phone itself.)

This is an issue with many android devices. And some do it even with the OEM charger. I've personally experienced it on 3-4 of my phones.
Sent from my GT-N7000 using Tapatalk 2

This happened on my HTC EVO even with the factory charger.
Sent from my GT-N7000

I think if I'm not mistaken.. this all happens to all touchscreens out there, irregardless on what brand or make/model your using.

letters_to_cleo said:
I think from a simple deduction, when your charging, your actually charging the phone's screen itself. Now this maybe wrong but I've read somewhere that what's mainly holding the power on all touchscreen phone is the actual screen itself.
So if your charging the phone, your actually charging the screen and if your using the phone(naturally using the screen itself) you are in effect disturbing the charge because the power it needs to fill up to recharge the phone is being use also to discharge it (thru constantly using the phone itself.)
Click to expand...
Click to collapse
Sorry, but this is bull****. Phones have batteries like any other portable device, and this is what is charged.
I am speculating entirely but it is most likely that the voltage coming in from the USB cable is ****ing with however the screen detects your finger (i.e, via capacitive sensing). More speculating but I assume that having some sort of electric field near a capacitive screen will cause issues in detection (I've had the same effect happen with the capacitive buttons near a plasma ball; they caused false detections of the button being pushed). Then again, the phone is full of electronics + radio transmitter so I might be wrong.
Basically, buy a better cable, or it might just be a general fault with this sort of thing.

My HD2's screen used to go crazy when I charged it with a Chinese charger, like random screen touches at warp speed. If I used a well made charger, all was well.
The touch screen did eventually die on the HD2, and I had to send it back for repair under warranty. Now, if I get any jittering/non-responsive screen behaviour, I ditch the charger.

I've experienced this too, but it is not necessarily the charger, but the amount of power delivered by the charger.
I used to live in a rural area and the power supply was bad. We only got about 150V through the wall socket instead of the full 240V.
Using my stock charger on my Galaxy S, the screen was laggy, but if I used the same charger on a good power outlet in town, it was fine.
I've also used cheap no name chargers that are laggy even on a "good" wall socket.

Knifa said:
Sorry, but this is bull****. Phones have batteries like any other portable device, and this is what is charged.
I am speculating entirely but it is most likely that the voltage coming in from the USB cable is ****ing with however the screen detects your finger (i.e, via capacitive sensing). More speculating but I assume that having some sort of electric field near a capacitive screen will cause issues in detection (I've had the same effect happen with the capacitive buttons near a plasma ball; they caused false detections of the button being pushed). Then again, the phone is full of electronics + radio transmitter so I might be wrong.
Basically, buy a better cable, or it might just be a general fault with this sort of thing.
Click to expand...
Click to collapse
speculation and assumptions are just cousins..
Anyway, you are talking about capacitive sensing and stuffs. Capacitives and resistives only apply to touchscreens and none on qwerty phones. Your 'speculation' about electric fields on capacitive screens are actually correct, but I would like to go back to what I said again, the phone draws power from the screen itself. So when you touch the screen (to perform gestures on it), you are actually drawing out power from the phone. your finger performs a conductance to the screen. Your say of 'false detection of the button being pushed' are actually magnetic fields that is try extrapolate from your fingers (as a magnet) to the screen, thereby causing a marginal errors on the screen's predefine calibration.
That is why you may have notice that whenever you have your phone charge, and your actually using for example to type a message on your phone, you can clearly see a margin of seconds in delay when letters will be registered to your message.
Try to simulate that with the phone charge and when it's not. Clearly you will see what I mean.
this is what the word- ferromagnetism is all about.
anyway, I won't delved with that as it's in the realm of physics already.
cheers

+1
Sent from Tapatalk

Had this same problem on my Dell Streak5 when using a non stock charger. The fix at that time was to purchase the small longitudinal magnets that are made to surround and clamp onto the usb cable. I had to place two on the end closest to the Streak. Corrected 80-90% of the problem.
I got the magnets at Radio Shack. It's been nearly two years ago, but I think I paid about $6 for a pack of 2.
kraz

richlum said:
I've experienced this too, but it is not necessarily the charger, but the amount of power delivered by the charger.
I used to live in a rural area and the power supply was bad. We only got about 150V through the wall socket instead of the full 240V.
Using my stock charger on my Galaxy S, the screen was laggy, but if I used the same charger on a good power outlet in town, it was fine.
I've also used cheap no name chargers that are laggy even on a "good" wall socket.
Click to expand...
Click to collapse
What? Only 150V? I don't believe it. How then other things work?
Sent from my GT-N7000 using Tapatalk

Well I was told it was 150V.
It took a lot longer to charge my phone or laptop there than it did at work in town (using the same charger in both locations), so there was definitely a lower current coming through.

Solved irresponsive screen when charging
After eight months trying to find a solution, today I have tried with my iphone 4 charger and my Kindle cable and, for the first time,I am able to write properly, as I weren't plugged. I have to say I don't like this device, it's very slow and the screen goes green almost everyday.

NICE GUY

Well this problem is not because of screen quality. Its all about with the wavelength of current supply and change in frequency . Its create some magnetic field and makes your screen behave weird. When we get proper ellectric supply we don't face such problems. Also cheap chargers don't follow quality levels and they generate uneven frequency thats why flux created by them makes screen behave weird.

This happened to my old HTC Incredible S (Vivo).
It only happened when the 5V charger was lower than 1A.
Quite strange.
But you could check if your charger has at least a 1A output.
Should be on there somewhere.
The stock Samsung chargers are 1A as well I believe.
Cheers,
Daan

Noisy Mains Charger

I noticed this morning a strange hissing noise which at first I thought was coming from the phone. This was when I was using the phone whilst it was plugged into the mains charger.
I removed the cable and the noise stopped. I plugged the phone into a USB port on my PC and there was no noise this time. So I checked the mains charger that came with the phone and sure enough the noise was coming from there!
It almost sounded like there was a fan inside, a very similar noise.
Has anyone else experienced this or can you recreate this?

It also happens to my charger, you can feel comfortable there are no problems
Sent from my Galaxy Nexus using xda premium

apprentice said:
I noticed this morning a strange hissing noise which at first I thought was coming from the phone. This was when I was using the phone whilst it was plugged into the mains charger.
I removed the cable and the noise stopped. I plugged the phone into a USB port on my PC and there was no noise this time. So I checked the mains charger that came with the phone and sure enough the noise was coming from there!
It almost sounded like there was a fan inside, a very similar noise.
Has anyone else experienced this or can you recreate this?
Click to expand...
Click to collapse
I do not have this charger but from your description it sounds like normal switcher noise.
The charger likely uses a switcher for dc-dc conversion. When not well designed they can have an audible noise. Usually it is not a fault and no reason to worry.

kuikkaj said:
I do not have this charger but from your description it sounds like normal switcher noise.
The charger likely uses a switcher for dc-dc conversion. When not well designed they can have an audible noise. Usually it is not a fault and no reason to worry.
Click to expand...
Click to collapse
Thanks for the info guys

i hoped i finally got rid of that noise with a new phone, but my note 2 charger makes noise too.
just like my LG O2X charger and Galaxy Tab 2 7" charger.
yet all my other chargers are capable of being perfectly silent.
it's loud enough to give me trouble sleeping, and i'm used to sleeping next to a noisy PC.

I don't have a Galaxy Note 2 yet, but my original Galaxy Note's charger makes noise, as well. I believe because it has a high mAH recharging, because I use as an extra charger an old blackberry charger (with a long long cable xD) with only 500 mAH recharging power doesn't make any noise. I don't know if it has anything to do with how much voltage is flying through the charger has anything to do with it, but:
*Samsung chargers make noise.
*Other chargers I have don't.

All the chargers since the SII's have emitted some noise when there is no device plugged in. I don't really mind honestly.
_______________________________________________________________________________________
Check out my huge collection of 64GB Samsung Galaxy Note 2 Videos (Demos, Accessory Reviews)

Using nokia phones since 2002 i have to say most of them make that sound, dont worry

I got my SGNII at the weekend, and I have a very noisy charger, to the point where, as it is close to my bed, it wakes me up when its finished charging. However its only noisy once the phone is fully charged. Unplugging the phone once charged means the noise stops, but it also means my phone has been running on battery for 6 hours before I get up.
I think I will switch to a different USB charger that doesn't sound like a mouse being tortured

No Problem
Never faced this issue ever. Maybe faulty chargers i guess

DK26 buzzing sound after full charge?

Hi,
after I fully charge my Z and operate it while its still hooked into the DK26 docking station, I get a very strange buzzing sound with every touch (or even movement) on the display.
Did anyone else noticed that ? Or know what it might be?
Regards,
iCEQB

None of you got that "problem"?

I noticed it on mine.

Anybody else?

SE_iCEQB said:
Hi,
after I fully charge my Z and operate it while its still hooked into the DK26 docking station, I get a very strange buzzing sound with every touch (or even movement) on the display.
Did anyone else noticed that ? Or know what it might be?
Regards,
iCEQB
Click to expand...
Click to collapse
I have this too... Weird!

Mine also does that every touch
Sent from my C6603 using xda app-developers app

I have it too. What could it be? Is it dangerous or faulty?

Are you sure it's the dock ? It's the charger making this sound, and it's normal - that's the sound made by capacitors inside the wall charger. Some chargers do it, some don't - nothing you can do about it, but it's not faulty. You could try changing chargers, but honestly mate don't bother with it =)

okay then, I was just wondering if it is considered normal.

Akiainavas said:
Are you sure it's the dock ? It's the charger making this sound, and it's normal - that's the sound made by capacitors inside the wall charger. Some chargers do it, some don't - nothing you can do about it, but it's not faulty. You could try changing chargers, but honestly mate don't bother with it =)
Click to expand...
Click to collapse
It's 100% not the charger, it's the docking station.
I tried different chargers and the buzzing remains.
I even held the phone while beeing inside the dockingstation against my ear and I'm 1000000% sure it's the docking station
The charger was under my desk behind the wall, so there is no chance I'm wrong
I know it's not dangerous but it's still pretty annoying, because you can't leave the WiFi on or even the clock screensaver active without it making that noise, cause it's buzzing only on input / output while the phone is charged at 100%.
Regards,
iCEQB

[Q] Only charging from Sony chargers?

So, for the past couple of days I've run my battery pretty much dry, when I got to a charger it was at about 6-12% both times. What I've noticed is that my phone doesn't seem to charge from anything except the charger it came with (in the dock... now that I think of it, I should probably have tested that as well, so it isn't just shutting down USB when low on battery) when it is in this low-battery state, nor does it appear in ADB. I tried shutting the phone off and charging like that, but it didn't work. As I am typing this, the phone (currently at a much higher charge) is successfully charging from exactly the same machine and same USB cable that it wouldn't work with last night while at 6%... what gives?
Has anyone else experienced this?
For the record I am running CyanogenMod nightlies (2013-06-10), however I am finding it difficult to believe that software would have an impact on this.

Rekoil said:
... What I've noticed is that my phone doesn't seem to charge from anything except the charger it came with...
Click to expand...
Click to collapse
That's strange. I'm currently using my. Old x10 charger and got no trouble. The manufacturer should not have any impact for charging. You can use an iDevice charger if you really need juice. ( of course with the right cable )
Rekoil said:
...I tried shutting the phone off and charging like that, but it didn't work.
Click to expand...
Click to collapse
I believe it's CM that not allows off charging... If I want to charge my old x10, I had to tun it on. If I connect the charger the green light tun on. So it go into flashmod.
Rekoil said:
I am finding it difficult to believe that software would have an impact on this.
Click to expand...
Click to collapse
I don't know how deep dose CM control the charging. Seems to be enough to make troubles... An answer from a dev would be welcome.
Hope I could help a bit.
"I know that my English isn't perfect, but I still hope it's comprehensible." Send over the cool Xperia Z

naphets8 said:
That's strange. I'm currently using my. Old x10 charger and got no trouble. The manufacturer should not have any impact for charging. You can use an iDevice charger if you really need juice. ( of course with the right cable )
Click to expand...
Click to collapse
Well like I said, at the moment (at 80%) it is charging fine using all manner of chargers (Apple iPhone charger included). It is only when I really need it that it doesn't seem to want to charge from "lesser" chargers
naphets8 said:
I believe it's CM that not allows off charging... If I want to charge my old x10, I had to tun it on. If I connect the charger the green light tun on. So it go into flashmod.
I don't know how deep dose CM control the charging. Seems to be enough to make troubles... An answer from a dev would be welcome.
Click to expand...
Click to collapse
I guess I will have to restore Sony software on it and try at some point. It certainly doesn't seem like there is a good reason for this behaviour to be hardware related, I mean what if I didn't have the dock? (Again, need to test if the original charger will charge via USB in low battery state)
naphets8 said:
"I know that my English isn't perfect, but I still hope it's comprehensible." Send over the cool Xperia Z
Click to expand...
Click to collapse
Not as bad as you seem to think

Ok, I think I've nailed this down. My Xperia Z dropped to 18% at some point during the weekend. And all I had to charge it with was an iPhone charger (providing up to 1.1A so that's still not too bad) and a USB cable without a data pair. This didn't start charging. However, luckily my friend had an LG charger with a USB cable containing data pairs. This did start charging! (And his phone charged using my iPhone charger with data-less USB cable) Unfortunately I am an idiot and didn't think to try his cable with the iPhone charger, but at least this is a start! (I'm starting to believe it is the iPhone chargers somehow, which is strange because electricity is electricity, and chargers don't discriminate)

I use my old N900 charger
Sorry to hear you have problems with the charger, I use my N900 charger to charge anything (that charges by micro USB - Including my Xperia Z) around the house with no problems. I can't charge the phone in a MAC or PC USB port if the device is not detected (even if the port has power), but I found out that lots of devices behave like this (I guess its a good way of forcing users to buy a "quick" charger).
Rekoil said:
Ok, I think I've nailed this down. My Xperia Z dropped to 18% at some point during the weekend. And all I had to charge it with was an iPhone charger (providing up to 1.1A so that's still not too bad) and a USB cable without a data pair. This didn't start charging. However, luckily my friend had an LG charger with a USB cable containing data pairs. This did start charging! (And his phone charged using my iPhone charger with data-less USB cable) Unfortunately I am an idiot and didn't think to try his cable with the iPhone charger, but at least this is a start! (I'm starting to believe it is the iPhone chargers somehow, which is strange because electricity is electricity, and chargers don't discriminate)
Click to expand...
Click to collapse

Ok. It's effectively a start of and answer. It make me believe that the phone communicate somehow someway with the charger. But that sounds unrealistic.
You wake up my curiosity. Will try to look at this. But it will take some time.
"I know that my English isn't perfect, but I still hope it's comprehensible." Send over the cool Xperia Z

zunido said:
Sorry to hear you have problems with the charger, I use my N900 charger to charge anything (that charges by micro USB) around the house with no problems. I can't charge the phone in a MAC or PC USB port if the device is not detected (even if the port has power), but I found out that lots of devices behave like this (I guess its a good way of forcing users to buy a "quick" charger).
Click to expand...
Click to collapse
That's odd, a micro USB cable doesn't change by the manufacturer, except if they change de voltage, i use the Sony cable and a GS3 usb cable at work, no any problem.
Anyway just in case i always prefer to use the manufacturer cable to avoid damage my phone.

QualQuek said:
That's odd, a micro USB cable doesn't change by the manufacturer, except if they change de voltage, i use the Sony cable and a GS3 usb cable at work, no any problem.
Anyway just in case i always prefer to use the manufacturer cable to avoid damage my phone.
Click to expand...
Click to collapse
We don't think it is the cable (unless it is a cable which only has the power pair and no data pair, that could be a problem), but rather the charger, that is causing problems.