Touch screen acting weird while plugged in to the charger! :-( - Optimus One, P500, V General

Hello all,
I am facing a weird problem, ma P500's touch screen is not working properly when plugged in to the charger. The touch recognized by the sensor, is not at the exact point whr I touch. If I touch on clock, the notification bar gets pulled down and so on, this happens only when I plug it in to the charges, else it works flawlessly.... Has anyone else faced a similar prob???? Please help!

I had a similar problem and it was a bad charger. I replaced the aftermarket charger that I originally had with an OEM LG-branded USB charger and the problem went away. There are many posts online about this problem happening with all sorts of chargers, so it seems like something that can happen with chargers and you just need to get a different charger to fix the problem.

Neil,
Thanks a ton!!!! Minutes back i was suspectin da same, cuz da touch response was flawless whn i was charging thru USB.
Sent from my LG-P500 using XDA App

Related

[Q] Touchscreen problems while charging

Hi.
My x10 mini pro has terrible touchscreen issues while being on dc charger.
For example arranging icons is totally impossible and the upper panel keeps on showing up and stuff.
As a result the phone is almost unusable as long as it's on charger. But when charging via pc everything seems to be perfectly ok.
Anyone has the same problem? Or did I just get a defective device/charger?
Also, my battery lasts for only some 4-5 hrs. I've had the phone for 4 days now, so i'm still givin it quite a business, but 4 hours? Seriously..
Well I don't think that is normal , you better take it to where you purchased it and tell them about the whole thing that's not normal.
Thanks, the thing about the touch screen really *is* weird. How about the battery persistence?
Is your phone Android 1.6 or 2.1? I have the same problem before but the problem with my phone not only happens when it is being charged through charger but also while connected to USB port on a PC. I had it replaced with a new one. They said it is a hardware issue but others say it only happens when they upgraded from 1.6 to 2.1 so it is probably a 2.1 bug.
Well, to be honest, I dunno.. I've upgreded to 2.1 right away, so I don't remember if this appeared on 1.6 as well :\ But I don't wanna run on 1.6 anyways, so this doesn't bother me really
I had a similar problem on my mini pro but ONLY when using a charger other than the SE one that came with the phone; fine with PC USB charging or from the SE charger but goes crazy with false touchscreen presses or the TS failing to respond at all on one occasion until I figured out it was the non-SE charger. I think the issue may be that when using a stand-alone USB charger, the SE version supplies much more current than a standard USB port; presumably, when using a port on a PC the driver SW adjusts the charging current to compensate but non-SE chargers may not supply sufficient voltage under the charging draw the mini pro wants.
yeah~ just go for a ORIGINAL charger, don't buy a cheap one, buy a better one! it's the charger problem
My work-around
Hello all,
I'm experiencing the same problem and might have some new insights. I have tried multiple chargers including the Sony Ericsson charger that came with the phone. These are my findings:
- SE charger (wall socket 2 USB) (5V, 850mA) - The problem occurs, however I'm able to navigate
- Cheap Ebay charger (wall socket 2 USB) (5V, 1000mA) - The problem occurs, can't even get passed the lock screen
- Cheap charger (complete charger, no seperate USB cable needed) (5V, 550mA) - No problems
- Charging via USB of laptops and desktops with the USB cable that came with the phone (5V, 500mA) - No problems
Needless to say that with 500mA the charging takes very long.
BUT...here comes the kicker (and my solution):
- HTC ORIGINAL AC EU WALL Charger TC E250 USB ADAPTER (Wall socket 2 USB) (5V, 1000mA) - Charges fast and no problems.
So, in my case it seems as if the problem occurs while charging above 550mA and probably only with cheap chargers, including the SE one. The original HTC charger works like a charm.
I also found out that the touch controller is right next to where the micro USB connection is located. (google "Sony Xperia X10 Mini Pro Teardown and Analysis", I can't post links here...)
Apparently, bad chargers interfere. Hope this helps.
i do use original SE charger and don't even have another but what Neliscornelis posted might be useful THANKS!
I use original SE charger and haven't any problem
I get this problem to.. What i have to do is hold the lock button until the power off screen comes then cancel.. Also I have another problem when in calls.. the screen blacks out every time i try to end the call!! Does aqnyone else have this?
touchscreen problems
hi! i have similar problems!
that problems occur when connecting phone to my pc with original SE cable.
also tried with another original usb->microUsb SE cable, and problem stays...
no matter what charger I use, i always have same problems with touchscreen.
also I tested it with original htc charger and everything is same again, touch screen is registering multiple taps!
so, for now i tested this situations, and problem is always occurring:
-when connecting phone to pc with original SE cable
-when charging via wall outlet (tested with 2 original sony ericsson chargers)
-with original htc charger
only exception, when everything is working fine is when i plug phone in my car (via car lighter->usb adapter)
any solution?
thanks
I can confirm this bug. Original charger 1.6 and 2.1 all the same. The phone seems to be registering random touch events without any physical input.
Also, the proximity sensor doesn't seem to be working while charging. Combined with the false touches, making calls with the phone on charger isn't something i'd recommend.. :\
krishpeen said:
Hi.
My x10 mini pro has terrible touchscreen issues while being on dc charger.
For example arranging icons is totally impossible and the upper panel keeps on showing up and stuff.
As a result the phone is almost unusable as long as it's on charger. But when charging via pc everything seems to be perfectly ok.
Anyone has the same problem? Or did I just get a defective device/charger?
Also, my battery lasts for only some 4-5 hrs. I've had the phone for 4 days now, so i'm still givin it quite a business, but 4 hours? Seriously..
Click to expand...
Click to collapse
I am experiencing this one too. I think it's the static from our skin.
I tried putting my finger in front of the screen like less than half inch above the surface (but not touching the screen), and it activates an icon. I can do it all over, so I know its not just a delay of the screen from a previous touch.
The notification bar above also goes like its going crazy or like flickering.
The touchscreen i think is plastic and not glass thats why it's prone to static.(not sure). but whatever that screen is made of, there's some sort of static going on.
Hi i think that the unresponsive screen is due to the fact that its actually oversensitive. i mean the screen is sometimes activated by the sides of the phone and the botton of the screen where the xperia logo is. I am wondering if there is a file that changes the screen sensibility? dont you know how to do it? rooting the phone or something?
Other idea im having is to dissasemble the phone and put something under the black plastic where the xperia logo is to reduce the sensibility of that area. any ideas?
I have record a video watch it to see what i mean with oversensitive. And yes this is a new out of the box xperia x10 mini
w w w . youtube . com/watch?v=hXg_IdRYyl8
mbolinao said:
I am experiencing this one too. I think it's the static from our skin.
I tried putting my finger in front of the screen like less than half inch above the surface (but not touching the screen), and it activates an icon. I can do it all over, so I know its not just a delay of the screen from a previous touch.
The notification bar above also goes like its going crazy or like flickering.
The touchscreen i think is plastic and not glass thats why it's prone to static.(not sure). but whatever that screen is made of, there's some sort of static going on.
Click to expand...
Click to collapse
Unrelated effects. It isn't static, it is capacitance. These phones have a capacitive touchscreen and your body contributes to the electrostatic field that is part of basic capacitor physics so that it is possible to affect the field to register a touch by merely moving a finger close without actually touching. This is normal. The problem with random touches (when no finger is even near) and the charger problem is not normal.
Neliscornelis said:
BUT...here comes the kicker (and my solution):
- HTC ORIGINAL AC EU WALL Charger TC E250 USB ADAPTER (Wall socket 2 USB) (5V, 1000mA) - Charges fast and no problems.
Click to expand...
Click to collapse
Dont get me wrong when i ask you this, but what do you think how much your battery like to be charged with that charger? How much you think it will last?
When i charged mine with original SE charger (5V, 850mA) it takes me less than 2hours to fully charge it.
When i charged with PC USB it takes it about 4-6hours.
So, im sticking to charging mine with PC USB..
krishpeen said:
...my battery lasts for only some 4-5 hrs. I've had the phone for 4 days now, so i'm still givin it quite a business, but 4 hours? Seriously..
Click to expand...
Click to collapse
Really? Mine lasts 2 days with data traffic on, wi-fi, gSynh, gTalk and gMail always on (cause of my work).
Did you followed guides here on forum regarding a battery?
There is a guide of deleting batterystat.bin file in your phone (must be rooted)
batterystat.bin is file that Helps Android read your battery. Its not quite accurate, so, after every reflash/custom you should fully charge your battery and delete that file.
Process that i do after every reflash/restore/messing around.. I fully charge my battery via PC and leave it for ~30 more minutes. I delete mentioned file while my phone is connected via USB to PC, reboot phone and remove USB while it boots, that way, your android will see fully charged battery and pass that info in baterystat.bin, after that, im not connecting my phone until battery is fully depleted.. that way your baterystat.bin will have max and min values for battery. But, its only me, no one needs to follow this..
Also, i read that battery life can improve over time (until batterystat.bin hits the right values)..
Edit: Download Advanced Task Killer from market, it will help you kill unwanted tasks, thus saving your battery life.
Do you think that changing the digitizer will fix the issue?? Its like $20-$30 on ebay. And this phone its extreamely easy to open and change the digitizer in home!!
Or could this be a problem within the phone itself? i mean everything works except for the touchscreen!!
robsaw said:
Unrelated effects. It isn't static, it is capacitance. These phones have a capacitive touchscreen and your body contributes to the electrostatic field that is part of basic capacitor physics so that it is possible to affect the field to register a touch by merely moving a finger close without actually touching. This is normal. The problem with random touches (when no finger is even near) and the charger problem is not normal.
Click to expand...
Click to collapse
guess i just used the wrong term. but i guess you get my point
but it never happened to my iPhone, and iPhones have capacitive touchscreens too

[q] htc one tmobile charging problem

Has anyone had the issue where phone wont charge when phone is facing down? just bought a phone and thats the only issue with it
hec.2k said:
Has anyone had the issue where phone wont charge when phone is facing down? just bought a phone and thats the only issue with it
Click to expand...
Click to collapse
I have a problem when my HTC one is not really charging. In several hours I got only 4%. I tested it with battery widget and it barely gets 10-100 mA when charging. Once screen is on, mA goes negative, even though phone is plugged in. Maybe I too need to put it face up...
________________________
Update:
It finally got fully charged with ~600 mA input. In my case it appears to be a faulty charger. Check your charger, test it with different wires, maybe it has bad connection? Just a speculation.

A116 Charging issue

For past few days, I'm facing this strange problem that the phone doesn't charge beyond a particular limit, and sometimes at all. When I plug in the charger, it displays 'Charging' but the battery level doesn't go up. I tried few things to understand where's the problem:
1.) I changed the charger and used the other ones (700mA, 500mA, USB charging with PC) and they worked well for a while, although slow charging, but afterwards the issue re-appeared and phone stopped charging even by them.
2.) I changed the battery, thinking it's a battery issue. The one that I got from a friend charged perfectly well with my own MMX charger for the first time, but now it's giving the same issue again and not charging beyond a particular level, say 40%, which will eventually come down and it won't charge at all.
I'm confused as what kind of problem it might be - hardware issue with the charging socket, charger/USB cable issue, or a firmware issue? Has anyone faced this problem till now wherein the their phone doesn't charge, even though it shows 'charging'? Please share what did you do to resolve it. I'm currently located at a remote place and cannot visit a service center.
how old is your device? if it's more than 9 months you might have to replace your battery. you could find it on ebay.

[Q] Unresponsive Touch Screen when charging

Anyone experiencing unresponsive touch screen/ typing into the keyboard screen not getting what is it supposed to show when charging? I notice this a couple of times when charging and its very annoying. I think mine is defective/Software bug? Build Number 17.1.A.2.69
This happened on my previous Galaxy S2. But i haven't encountered it yet for Z2.
goodpenguin said:
This happened on my previous Galaxy S2. But i haven't encountered it yet for Z2.
Click to expand...
Click to collapse
I plugged it to my laptop via usb it seems smooth and responsive... I put an adapter to the charger itself and plug it in to the socket and it seems normal.. I don't know if the stock charger have defect? Can anyone explain this? Thanks
Found the culprit if I charged the phone into the stock charger it goes unresponsive opening notification bar etc... When I plugged it out the phone and plugged it to my laptop seems normal and goes back to its responsiveness.. I hope the charger is the defect need to buy one to test it out again..

XPERIA Z2 D6502 Charging problem

Hello,
Im having problem with charging My xperia z2
Recently I tried using magnetic charger for first time but it wasn't charging at all and phone started getting more heat so I removed it and got back to USB normal charging but now its not working as usual... when I connect usb charger phone showing charging symbol and red light on but its not charging at all, turned off phone and tried charging while phone off still same ..getting red light on and charging bar in the middle of screen and phone stuck on same percentage and goes down slowly even it keeps screen on charging bar after I unplug the charger !?!
I tried hard reset using power button and vol+ afew times some of the tries worked and phone charged normally but after i plug the usb charger again problem gets back ... so i keep resetting phone many times till i get lucky and charge normally
Also tried factory reset and flashing new stock ... still same
I don't know but i have feel that magnetic port causing problems for battery even i didn't use magnetic charger again
and i read somewhere it might be possible to disable magnetic port?
any idea?
help would be appreciated
any help?
When you connected the magnetic charger first time, have you connected it in the correct way? If it is connected upside down, it ll cause serious issues..
LikeTh3DON said, you probably connected your magnetic charger in the wrong side. I've done the same with my D6503, and I have the same issue. I already looked to change the battery, nothing change, it's a chip on the motherboard I think.
Look on that thread, some users have the same issue, no solution so far:
http://forum.xda-developers.com/showthread.php?t=2745786&page=3
If you can, use sony's usb cable and charger, or a usb port on your laptop, don't know if it's related, but my phone charge easier with those. If it's the same issue than mine, your phone will charge to 85-90% and the screen will constantly goes on. When it happen unplug your phone or it will heat a lot without charging.
Same thing accidently done with me.now phone dsnt charging with megnatic cable(charging on and off regularly) nd with USB its have same problem when battery % reaches above 90.
Please give me solution..
Is that repair is available for this issue?
shafez1 said:
Hello,
Im having problem with charging My xperia z2
Recently I tried using magnetic charger for first time but it wasn't charging at all and phone started getting more heat so I removed it and got back to USB normal charging but now its not working as usual... when I connect usb charger phone showing charging symbol and red light on but its not charging at all, turned off phone and tried charging while phone off still same ..getting red light on and charging bar in the middle of screen and phone stuck on same percentage and goes down slowly even it keeps screen on charging bar after I unplug the charger !?!
I tried hard reset using power button and vol+ afew times some of the tries worked and phone charged normally but after i plug the usb charger again problem gets back ... so i keep resetting phone many times till i get lucky and charge normally
Also tried factory reset and flashing new stock ... still same
I don't know but i have feel that magnetic port causing problems for battery even i didn't use magnetic charger again
and i read somewhere it might be possible to disable magnetic port?
any idea?
help would be appreciated
Click to expand...
Click to collapse
Hey,
I haven't necessarily got a solution for your problem but thought I can offer you my opinion. I've used solely the magnetic charger for nearly a year as my USB port has clean snapped off from my logic board. The whole time I've not had an issue, the only time the device heats is during intensive games or/whilst charging.
I know that people have had issues with the magnetic charging port in the past, it's a relatively easy fix, however, will involve opening the device and stripping out a lot of the parts to get to the ribbon.... up to you what you want to do.
Guess I should ask the obvious, have you tried different cabled/ chargers etc?? the fault could potentially lie with the cables if they've been damaged/frayed.

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