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Yesterday night I was playing with the phone before sleeping. It was charging not with the provided ac adapter, but with the usb-miniusb cable + an aiino usb-ac adapter. Well, the weird thing is that using google maps, the touch/multitouch control was completely f****d up. I mean, it was impossible to pinch-to-zoom, using the zoom buttons worked, but when I used only one finger to move around the map, instead of moving it was zooming randomly in&out without a reason. So I unplugged the cable and it was working perfectly...
It seems your 3rd party ac adaptor is not appropriately grounded so there is a small current on the touchscreen. Capacitive touchscreens recognize minimal changes in currents on the surface. That's why fingers, oranges, organic material work with it, but no stylus or other pens.
Hmm that's an interesting point, I didn't think about that. Do you think I should stop using that charger? Could it damage my device in some way?
I got it with my iPhone 3GS on a car charger too. But it didn't hurt the device at all.
I cannot guarantee this though...
I always used it with my iphone 3g too, and also used my iphone while it was charging...but I never had such an experience on iphone's multitouch...that's really strange!
I had the same issue with a generic ac micro usb charger I bought on ebay.
Since the phone was just newly released, there seemed to be a premium on the chargers described as being for the galaxy s so I went and bought a much cheaper micro usb charger compatible with motorola devices. I figured the contacts would all be the same and all micro usb chargers the same.
Wrong.
As soon as I plugged in that charger, the touch screen was borked. The display was fine but the touch response was shot. If I tap the application drawer in the home screen, it would register a click on some other random spot on the display. The phone was utterly useless while plugged into this charger.
To troubleshoot, I tried mixing it up between the original samsung charger and the generic, resetting etc, and it always came down to the charger. Crap with generic, prefect with original.
TL;DR - not all chargers compatible with samsung galaxy s, borked touch response from generic charger.
Perhaps it would be useful to change the title off this post and move to the accessories forum? Useful for people to add their feedback on generic chargers they've used.
Sent from my GT-I9000 using XDA App
Btw, the charger did charge the phone but I guessed having extra current run through the screen would damage the capacitive sensors.
Compared to the original samsung which has 4 contacts, the micro usb plug on the generic had an extra contact. I tried to open up the plug to see if I could do something about the extra contact but it broke and I the it out.
Shame I didn't think to make a video to share.
Sent from my GT-I9000 using XDA App
changaz said:
I had the same issue with a generic ac micro usb charger I bought on ebay.
Since the phone was just newly released, there seemed to be a premium on the chargers described as being for the galaxy s so I went and bought a much cheaper micro usb charger compatible with motorola devices. I figured the contacts would all be the same and all micro usb chargers the same.
Wrong.
As soon as I plugged in that charger, the touch screen was borked. The display was fine but the touch response was shot. If I tap the application drawer in the home screen, it would register a click on some other random spot on the display. The phone was utterly useless while plugged into this charger.
To troubleshoot, I tried mixing it up between the original samsung charger and the generic, resetting etc, and it always came down to the charger. Crap with generic, prefect with original.
TL;DR - not all chargers compatible with samsung galaxy s, borked touch response from generic charger.
Perhaps it would be useful to change the title off this post and move to the accessories forum? Useful for people to add their feedback on generic chargers they've used.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Ok I changed the title, now I think to move it the help of a moderator is required...
i have the same problem with my crap charger. but mine won't even charge, it charges up like 1% / 30 minutes and I can't use it while the phone is turned off because it just turns on by itself. crap.
Sent from my GT-I9000 using XDA App
I use my nokia n97 charger to charge galaxy since I bought it no problem at all
Sent from my GT-I9000 using XDA App
i bought my SGS on ebay and it didn't come with a charger.
the 3rd party charger i bought on ebay doesn't charge the phone and makes it do all sorts of things by itself.
just a warning to others, you may want to spend the extra money on a charger that specifically says it's compatible.
carlocb said:
Yesterday night I was playing with the phone before sleeping. It was charging not with the provided ac adapter, but with the usb-miniusb cable + an aiino usb-ac adapter. Well, the weird thing is that using google maps, the touch/multitouch control was completely f****d up. I mean, it was impossible to pinch-to-zoom, using the zoom buttons worked, but when I used only one finger to move around the map, instead of moving it was zooming randomly in&out without a reason. So I unplugged the cable and it was working perfectly...
Click to expand...
Click to collapse
same problem with my desire, with a 3rd party microusb charger .... when i use pinch to zoom the screen goes crazy
Note that if I touch the usb cable ground (outer metal part) with one hand, my touch screen then works.
cedricberger said:
Note that if I touch the usb cable ground (outer metal part) with one hand, my touch screen then works.
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This is definitely something to do with Capacitive touchscreens.
Similar thing happeend to my ipod touch 3g when I used a 3rd party wall charger on it
How bad is it to our phones ?....
I would like to know what is really happening.
Is the usb charger "ground" at an important voltage relative to earth ground ?
Is it at a variable voltage, which would even more confuse our phone ?
Could we safely ground it, and how ? (connecting the usb ground to earth, maybe via a grounded 220V plug ?) .
I think anyway I will at least mesure the voltage (and maybe leaking current relative to real ground) level of this usb "ground"...
Any electronician to explain how it is normally done in quality chargers ?
cedricberger said:
How bad is it to our phones ?....
I would like to know what is really happening.
Is the usb charger "ground" at an important voltage relative to earth ground ?
Is it at a variable voltage, which would even more confuse our phone ?
Could we safely ground it, and how ? (connecting the usb ground to earth, maybe via a grounded 220V plug ?) .
I think anyway I will at least mesure the voltage (and maybe leaking current relative to real ground) level of this usb "ground"...
Any electronician to explain how it is normally done in quality chargers ?
Click to expand...
Click to collapse
I'm not sure what ground here is! My e-bay travel charger 4.7v 500mA with a Samsung logo has no ground connection on the charger - normal in Europe. Problem probably is that it is possibly not a Samsung unit at all - well it only cost 1euro - It does charge and the screen does freeze until I disconnect it. Only got it today - but nothing is getting hot and no other problems so far. The voltage rating is of course less than the standard 5v.
Bought a Belkin Dual USB car charger (1.0A + 0.5A) online. Will report back.
Rofa1 said:
I'm not sure what ground here is! My e-bay travel charger 4.7v 500mA with a Samsung logo has no ground connection on the charger - normal in Europe. Problem probably is that it is possibly not a Samsung unit at all - well it only cost 1euro - It does charge and the screen does freeze until I disconnect it. Only got it today - but nothing is getting hot and no other problems so far. The voltage rating is of course less than the standard 5v.
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Click to collapse
My best shots would be no ground (mass) issues, but:
1. stability of the charger output voltage
2. stability of the charger output current
3. value of the charger output voltage
4. capacity of the filter capacitors in the charger (too little - 50/60 Hz hum is distributed to the output)
5. Is the charger impulse or stabilized?
Capacitive screens must be very sensitive to changes of impedance and if there is no stable voltage or current or if the output is interfered with electrical network hum, the touchscreen may go crazy in my opinion...
edit: format tags corrected
Working fine without any capacitive screen issues.
The good thing is it works as charger mode instead of USB. So I assume the 1.0A socket would actually charge faster than USB mode.
v205 said:
Bought a Belkin Dual USB car charger (1.0A + 0.5A) online. Will report back.
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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.
You could probably filter this out by adding capacitors or whatever but really, the solution is don't buy $1 chargers for your $x00 phone.
Just got the battery warning so I plugged it in and to my surprise nothing happened ... checked the plug, restarted.. it just won't charge . When I turn screen off and plug it in the screen turns on but it doesn't charge .. is it busted?
Sent from my Nexus S using XDA App
Are you plugged into a wall socket? If you are trying to charge through USB from a computer, it won't charge unless in sleep mode. Even then it will charge slowly.
Plugged into a wall socket atm.. iv tried from a computer I don't get a charging icon like I used 2
Sent from my Nexus S using XDA App
My was doing the same,I have try different wall sockets in the house and one work ,so keep trying.
Sent from my HERO200 using XDA App
One works? What how's that lol
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this will sounds bad but.... check the usb connection to the plug, as the way its made you can actully push the usb into the plug the wrong way around....
Tried all plugs don't work and yes its the right way round
Sent from my Nexus S using XDA App
when I plug it into a comp it comes up with the USB stuff like Asus sync .. just not charge..
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Anyone else had this issue
Sent from my Nexus S using XDA App
Just got it from Amazon and I have the same issue and still not able to figure out how to fix it. My Transformer is lying there without charging. Planning to return it to Amazon.
Right I just got mine working... try this pull the plug apart and put it back together now squueze them together as tight as you can and try that. Its working for me now ..
Sent from my Nexus S using XDA App
It just doesn't work. How is the usb cable connected to your adapter? It just gets in both ways.
Can you send me a picture of how the three parts are fit into each other?
its only suppose to go in one way, just like conncting any USB devices. But tried that, dissemble the adaptor and put them together, it actually happened to me once too, did exactly that and everything fixed. Remember you gotta squeeze pretty hard to put the two pieces together.
Thanks guys, its working. But this is ridiculous, you have to do a dumbbell roll to fix battery plug
i cant get it too charge and i just got it in the mail. why the hell it even come with this wack ass plug in the first place. what a horrible first impression!
I suggest you dont even use it, its dangerous. Mine melted the first day I got it. I went to bestbuy and got a replacement that works great. It charges at 11 volts/1.5 amps
http://www.bestbuy.com/site/Dynex&#...d=9462949&st=dynex ultimate charger&cp=1&lp=1
italia0101 said:
Right I just got mine working... try this pull the plug apart and put it back together now squueze them together as tight as you can and try that. Its working for me now ..
Sent from my Nexus S using XDA App
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Click to collapse
Yes, I had this problem with mine too.
It seems to be a common issue:
http://forum.xda-developers.com/showthread.php?t=1075475
D_Czap said:
I suggest you dont even use it, its dangerous. Mine melted the first day I got it. I went to bestbuy and got a replacement that works great. It charges at 11 volts/1.5 amps
http://www.bestbuy.com/site/Dynex&#...d=9462949&st=dynex ultimate charger&cp=1&lp=1
Click to expand...
Click to collapse
This seriously works?
I just hope the voltage is right... I've tried different adapters for my phone and then my phone started acting weird (like it didn't take calls and would freeze at times). Replaced the adapter and it returned to normal again.
My TF adapter also gets really hot when charging.
Thanks for the recommendation.
I put some petroleum jelly on the metal prongs and smashed it on the counter a few times AFTER snapping it in.
Unfortunately I did them at the same time and didn't test in between so i don't know which if either or possibly both fixed it but mine is finally ****ing charging.
What a headache. I'm really bothered by ASUS for issuing such a faulty component.
I'm probably going to pick up that dynex tomorrow, because I just KNOW this will break again and mysteriously lodge itself into my drywall.
I just had the problem and discovered that the 5 forward pins on the power adapter are apparently quite easily deformed.
The charger is dual output, 5v and 15v.They use a USB3 connector, with the 15v quick charge output on those pins. I expect that they use the old USB 2 pins behind them to supply 5v for a slow charge, and PC data/charge connection.
Just prior to this, I had tried using an extension USB3 cable on it, so that I could use it while charging, and I suspect that was just enough to deform a couple of the 5 pins in the charger, and I got no charge at all from it, even after putting it back to normal. After an hour, the charger was still cold, and no indication of charging on either the tablet or with the table and keyboard attached.
With a good light and strong magnifier, I could see that a couple of the pins (of the 5 in the front) looked a bit recessed compared to the others, and carefully used the tip of a very fine needle to lift all of them just slightly. Having done that, the charger came to life when I plugged it back in, and the TF is indicating that it is charging.
I don't know how solid or permanent the fix will be, but it is working for me now.
Anyone else have the same issue? Try thjs, open the browser and search something on Google. Scroll up and down slowly and while still scrolling, plug the charger in.
It actually says that you shouldn't use the product while charging.
I don't know why, but I have the same odd responses on the screen while charging.
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I have it sometimes on my Xperia ARC " phone " Only when I use CHEAP charger ..
the Original charger doesn't have any problem with it through ...
The galaxy s II on sprint did this with the charger given - plugged charger into phone, it was difficult to swipe screen away. Not sure if it was upgraded with some sort of firmware update, but my charger for the gsII got replaced and then it worked. Did you happen to not receive the update? I didn't and mine's a little off, as if something is sucking the cpu power in the background. I also see a slightly longer delay when turning the screen on and swiping. I can't complain that much though, it's not as bad as some
It's definitely the charger. You can try to twist the cable, wrap in aluminum foil or try another charger.
I've had similar issues with the s2 .. it was the charger so would guess same here on note
Sent from my GT-I9300 using Tapatalk 2
neilgoco said:
Anyone else have the same issue? Try thjs, open the browser and search something on Google. Scroll up and down slowly and while still scrolling, plug the charger in.
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For me that is kind of hard to do, I mean scrllong the page while trying to plug in the charger cable at the same time. Why would you do it? Why not just stop doing any thing for the second or two that it takes to plug in the charger cable?
Sorry if this has already been asked. I searched but didn't find anything.
Does anyone else have a problem with the touch screen while charging? When I have mine plugged into the wall charger I notice that mine has a lot of trouble with scrolling, selecting, typing, zooming, etc. If I am using Dolphin Browser and try to bring up the long press menu it goes bonkers! It zooms in/out and scrolls up/down similtaneously until I release. The phone goes back to normal when I unplug it.
Is there anything I can do about this or do I just keep putting up with it?
BPS1254 said:
Sorry if this has already been asked. I searched but didn't find anything.
Does anyone else have a problem with the touch screen while charging? When I have mine plugged into the wall charger I notice that mine has a lot of trouble with scrolling, selecting, typing, zooming, etc. If I am using Dolphin Browser and try to bring up the long press menu it goes bonkers! It zooms in/out and scrolls up/down similtaneously until I release. The phone goes back to normal when I unplug it.
Is there anything I can do about this or do I just keep putting up with it?
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Click to collapse
hmmm. not I. if anything, the responsiveness improves when charging. not sure if this will solve it, but do you have USB debugging disabled?
I wish that was the case for me! And yes, debugging is currently disabled.
Sent from my SCH-I510 - Tweaked 3.2 - dslice tweaks and scripts
No issues here.
Still Charged Up
I've had that problem with an aftermarket charger (Verizon POS instead of Samsung.) A guy I work with had the same problem with a Motorola phone and aftermarket charger.
No problem here with either my Sammy or HTC charger.
. :: TSM Tweaked 3.2 ext4 . Lazarus 1225 . ADW EX . Vanilla Bean :: .
Seen this happen with some cheap chargers (esp. car chargers). Some sort of electrostatic or magnetic field interferes with the capacitive aspect of the display. Use the OEM charger.
Sent from my SCH-I510 using xda premium
Hmm...these suggestions make sense to me so far, seeing that I normally borrow one from a co-worker (I'm pretty sure she has a Blackberry) and use a Verizon charger at home. I'll have to see about getting an OEM charger and testing this out. Is it possible to have used "bad" chargers so long that it messes the phone up no matter what charger you use?
There's always been a question in the back of my mind if chargers really mattered. I thought it wouldn't as long as it fit. Interesting.
This helps!
Sent from my SCH-I510 - Tweaked 3.2 - dslice tweaks and scripts
BPS1254 said:
Hmm...these suggestions make sense to me so far, seeing that I normally borrow one from a co-worker (I'm pretty sure she has a Blackberry) and use a Verizon charger at home. I'll have to see about getting an OEM charger and testing this out. Is it possible to have used "bad" chargers so long that it messes the phone up no matter what charger you use?
There's always been a question in the back of my mind if chargers really mattered. I thought it wouldn't as long as it fit. Interesting.
This helps!
Sent from my SCH-I510 - Tweaked 3.2 - dslice tweaks and scripts
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Click to collapse
I guarantee charging cords and the USB outlets do matter.
tappin' that....
It's hit or miss (as is most things these days). BB chargers work fine with this phone.
Still Charged Up
BPS1254 said:
Sorry if this has already been asked. I searched but didn't find anything.
Does anyone else have a problem with the touch screen while charging? When I have mine plugged into the wall charger I notice that mine has a lot of trouble with scrolling, selecting, typing, zooming, etc. If I am using Dolphin Browser and try to bring up the long press menu it goes bonkers! It zooms in/out and scrolls up/down similtaneously until I release. The phone goes back to normal when I unplug it.
Is there anything I can do about this or do I just keep putting up with it?
Click to expand...
Click to collapse
I have had this troubles for awhile and found the solution... It is the charger and cable.
find another charger and cable (it only happens when I use my BlackBerry cable and
Pantec charger) the cable works great on other feature phones and the charger works
great with other cables but when the two mix it basically halts the screen... my two cents
worth...
try changing those two or one and see if it helps
Ugh having issues with micro usb port. Mine does this but might? be related. I posted in Q&A ..../hijack
My post
http://forum.xda-developers.com/showthread.php?p=50175477
2 people confirmed this. Example: http://forum.xda-developers.com/showpost.php?p=50199069&postcount=857
Any solution?
Use another wall charger..i got same problem fixed using another one
asdfzz said:
Use another wall charger..i got same problem fixed using another one
Click to expand...
Click to collapse
this is the one which comes from Motorola(OEM).
Seadra said:
this is the one which comes from Motorola(OEM).
Click to expand...
Click to collapse
Your charger may be defective. Usually with voltage irregularities you start getting issues with the digitizer and other components. Try plugging into your computer's USB and see if it still occurs.
Seadra said:
My post
http://forum.xda-developers.com/showthread.php?p=50175477
2 people confirmed this. Example: http://forum.xda-developers.com/showpost.php?p=50199069&postcount=857
Any solution?
Click to expand...
Click to collapse
i am using Samsung Galaxy Note i face this problem while charging. 2 pin shoe / plug
i solve this problem by changing the polarity of charger i.e by swapping pins/changing pins.
I can confirm this, same problem both with USB and wall charger
Sent from my XT1033 using Tapatalk
Hi guys,
This is a well known problem with capacitive touch screens [Parasitic capacitive coupling effect]
this is due to poor quality of power from electricity grid. Your A/C adapter has nothing to with it
even laptop trackpads are susceptible to this problem[they also use capacitive sensing]
Solution: Remove laptop charger and charge your phone using your data cable. Now you wont have this problem because you are charging from laptop battery.
Find a wall charger that does a better job of filtering your wall power.
I had this problem while using a samsung cable, after changing it to an lg one it worked fine, even with the same charger. I'm sure the one supplied would be fine. Otherwise change the wall charger as others have stated.
I was using another cable as it was longer than the one supplied.
Hello, If this is a commonly seen problem in capacitive touch screens then why my other devices [with capacitive screen] are not having the same problem? With the same charger and same power socket?
Also, is there a work around for those who doesn't have a laptop?
It has nothing to do with the touch screen. I assume it is a current/ compatibility issue between the device/ cable and charger. I had problems transferring data with other devices when using specific cables too.
I've noticed that my Samsung 0.7 output amp charger charges the moto g significantly faster than my lg 1.2 amp charger even though both are 5v. It should be able to take up to a 1.5amp current, any higher will be restricted by the device.
Sent from my XT1032 using xda premium
I want the moderator to ban me.
I suffer this problem when I connect my moto g to my pc and i use it. The touchscreen gets doesn't response well, but if I connect the phone to the USB-charger the screen works perfect.
S ame in G alaxy Ace 2.
The same happens to me when I use an Apple charger. Any other is allright.
Solution -> use another charger.