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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?
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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.
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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.
Hi guys, I have a samsung galaxy s vibrant from bell, and lately I have not been able to use my phone while charging. My phone lags and does not respond when i try to unlock the phone to go to the main screen.If I want to make phone calls and while charging the phone i would have to dial the number first then plug in my charger. But once its plugged in the touch screen does not respond at all. please hellp!! I;ve tried deleting apps to see if i have downloaded anything that may have caused it but it hasnt worked. I tried soft reseting, taking the battery out. So far nothing has worked. Any one else with the same problem?
Same Problem
I have the same problem with my Samsung Vibrant....I don't see the same problem with my usb to wall-outlet charger....however, the touch screen freezes up when I use a third party charger. Please help.
I have noticed this too. Anyone smart why this happens? Its not just galaxy s phones btw.
Noticed the same problem. While charging, the Touch screen doesn't work. Especially while using Swype, the Line is jagged.
....and automatic PIN
I have exactly the same problem (i9000, Sweden, 2.1 update 1). Unfortunately I did not think of the charger so I kept removing the battery
When connected to the charger when starting the phone and I have many pictures or video files on my memory card, the text "media scanning" and "media scanning finished" (or something like that) keeps repeating in the system info. When the PIN code windows appears, numbers are being highlighted quite randomly. Sometimes the "ok" button is indicated as well, so sometimes I have been forced to use my PUK code because all 3 PIN code tries had been done with noone actually touching the phone
Again, without the charger (and/or many media files) it works.
Maybe froyo could help
I am on 2.2 Froyo and it still happens for me.
Same problem with Froyo JPO!!
Problem with Selective devices or all the devices are having the same issue?
We need more confirmations.
thats because third party chargers have different voltage and charge that will affect your capacitive touchscreen. HTC chargers are recommended, since they are also touch screen based phones.
just searched for this problem and solved it immedieatly thanks to hoopjunkie's comments
i've 2 chargers,
the one came with the phone has output 5.00V 0.7A
one claiming to be samsung has output 4.75V 0.4A
I had never used the phone while in charge so never experienced this issue until 5mins ago
for some reason i was using the "fake" one since.
lesson learned check the voltage values, which i normally do, but trusting too much to the sellers got me.
ow and for the record I'm on froyo 2.2 i9000xxjpc
I am using the Stock charger. Same problem even with the USB Charging.
i wonder if theres a solution to this issue?
i am really getting tired of this problem -- i am using a nokia n97 charger.
i want to be able to download stuff from the market while the device is plugged in.
cylent said:
i wonder if theres a solution to this issue?
i am really getting tired of this problem -- i am using a nokia n97 charger.
i want to be able to download stuff from the market while the device is plugged in.
Click to expand...
Click to collapse
dump the nokia charger and get a genuine galaxy one
Hi, I got the same problem: no touchscreen when connected to USB of my laptop. I already noticed my phone acted weird next to my laptop. Once I ejected my cd-player the touchscreen worked again! So the electronics in the cd-player interfered with the touchscreen.
I've got a Rogers Captivate running 2.2 and I am having this same problem... it only seems to happen since the upgrade. This is using the stock charger and USB. Are there any possible solutions to this?
Same happens for my Samsung Galaxy S while charging from the stock wall charger. But the touchscreen works perfectly fine while charging from a PC's USB port using stock microUSB cable.
I think the problem lies with the charging current. The electrical field generated around the charger's wire due to a 500 mA (5 V) charging current supplied by PC's USB port seems to be doing no harm, while the 700 mA (5 V) charging current of the stock wall charger seems to be generating an electrical field high enough to confuse the capacitive sensors of the touchscreen. Perhaps the usage of a shielding core -- just like on the stock microUSB cable -- on the stock wall charger would help in negating the ill effects of the electrical field generated by a 700 mA charging current, but I'm not sure.
Anyway, my current workaround for the problem is obviously to charge from a PC's USB port. When a PC is not around or not switched on, I'm using a 5V, 500mA charger which was bundled with my iTech bluetooth headset. Obviously, both these methods have a shortcoming, that is slow charging compared to that of the stock wall charger. In my experience, this is a problem only when I use my phone for Wi-Fi tethering, in which case the battery capacity percentage continues to drop even when connected to a 500 mA charger. The positive side of 500 mA charging is that it gives a slighly better service life for the battery.
Same problem here, send my SGS to samsung and problema solved new display and display circuit its a know issue with some SGS's
So I just noticed something really bizarre with my Nook. The touchscreen started freaking out with false touches all over the screen. I used the Dolphin gesture interface to see what was going on, and every touch would register random touch points all over the place.
This happened while plugged into the Nook charger. The issue went away immediately after unplugging from the charger. I was afraid it was a heat issue, but this is not the case. I suspect it is the charger, and I am hoping it is not the touchscreen itself.
Has anyone else experienced a similar issue? I will try another charger later today and see if the problem is sill there.
--MrAnt--
I myself experienced something similar where the default browser kept doing odd things I just restarted and it seems to have gone away.
I tried restarting as well and the issue was still there. It only went away when I disconnected the charger.
--MrAnt--
I've had my nook for two weeks now and have noticed the same thing - weird touchscreen behaviour that goes away the instant I unplug the charger (usb).
I have seen this behavior on phones when I attempted to use cheap chargers. I suspect the voltage was not within tolerance and it caused the problem, based on the testing that I did. If you are using the original charger that came with the unit, you should try to obtain a new one.
I get this issue if my screen gets even slightly smudged. I think that once the official App Store comes I'm going back to stock and getting a warranty replacement.
This is a well known issue with many of the units.
jerrykur said:
This is a well known issue with many of the units.
Click to expand...
Click to collapse
I had the same issue with my first unit, I have had it replaced twice, (not because of this, but another issue). My current unit works fine connected to power. However It came with stock 1.0.1 and that may have fixed the issue in software.
migrax
The issue is most likey wit the stock charger wall wart. I have noticed that mine makes some VERY loud buzzing when plugged in and no cable plugged in. Prolly cheap caps in there. Poor filtering at best. This electrical noise is likely causing false capacitance spikes in the screen.
Almost tempted to order a spare and tear it down...put some electronics skills to use and build a better mousetrap as it were.
This happens to me as well. I have used family members and girlfriend Nook charger and it still happens. It doesn't affect 1 out of the 4 I bought.
So I figured out what was causing the problem. I was trying to use the charger plugged into a DC-AC inverter. The problem went away as soon as I plugged it into an AC outlet. I guess the Nook charger is sensitive to non-pure sine waves.
deadbot1, I noticed my charger also buzzes rather loudly when plugged in but not charging. I guess the chargers are not the greatest quality, based on the other comments here.
--MrAnt--
Yep, definitely low quality under the case. I've noticed that mine gets flat out HOT if charging from a low battery condition as well.
Once I'm back to work(stupid snow in SD) and have more free cash coming in I am going to order a spare and reverse engineer it with the goal of building a better replacement. I'll be posting my specs and designs as I go. Gotta see whats in there first...but I'm pretty sure that my new one will be based around a TS7805CZlinear regulator and a picaxe uMC if it needs brains.
I just got my Note and noticed when using stock charger the touch screen becomes much less responsive...however there is no such issue when charging with usb via laptop....has anyone else experienced this? should i change the kernel or simply return and exchange the device?...:/
tyrell said:
I just got my Note and noticed when using stock charger the touch screen becomes much less responsive...however there is no such issue when charging with usb via laptop....has anyone else experienced this? should i change the kernel or simply return and exchange the device?...:/
Click to expand...
Click to collapse
known problem: use different charger or different power outlet!
and please use the search function!
edit:
most likely a return would gain you nothing, because i noticed
this on a all devices i possessed so far, but only on the same
power outlet. other outlet, no problem with any of the devices!
also a different charger may help as some people reported!
TML1504 is right. Changing the motherboard gains you nothing. The problem lies on the power outlet/power charger you use.
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