shaky touchscreen while charging - Mi 3 Q&A, Help & Troubleshooting

Hi!
There is this problem where the touchscreen goes wonky while I am charging the phone through the original provided charger. By wonky I mean I touch somewhere on the screen and it registers the touch somewhere else.
I have tried different USB cable, different charger, and different power plug too.

Related

Touch input bugs when charging, this is new to me.

This never used to happen, but I switched to a new charger (my car charger with a wall socket adapter) and now, when the phone is charging, any touch input to the screen gets..well..I suppose the best word is "Garbled". If I try and switch between homescreen pages, it will almost appear as if it is "struggling" to do so, like, it will shake and stutter and maybe get halfway to the new page but will stay on the first. When browsing, about eight of ten touches to anywhere on the screen will immediately send the page to magnifying glass mode.
This only occurs when charging, and only since I started using this new charger adapter. Any ideas?
hettbeans said:
This never used to happen, but I switched to a new charger (my car charger with a wall socket adapter) and now, when the phone is charging, any touch input to the screen gets..well..I suppose the best word is "Garbled". If I try and switch between homescreen pages, it will almost appear as if it is "struggling" to do so, like, it will shake and stutter and maybe get halfway to the new page but will stay on the first. When browsing, about eight of ten touches to anywhere on the screen will immediately send the page to magnifying glass mode.
This only occurs when charging, and only since I started using this new charger adapter. Any ideas?
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Click to collapse
I had a very similar problem but what i had was an USB AC adapter. I plugged the phone into the USB slot using the USB cable. Everything seems to be charging fine but then it starts to really screw up.
This did not occur when recharge from the laptop. So It was easy to conclude that there was some kind of problem with the charging unit compatibility.
Maybe you should also try a different charger.

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?
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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...
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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.
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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.

Screen issues when connecting USB/Headphone/HDMI?

Has anyone noticed an issue when connecting a USB, Headphone or HDMI cable to the D3, where the touch screen doesn't respond properly?
I had the same issue with the DX when I upgraded it to Gingerbread and the DX2. When plugging in a cable (even brand new cables), the touch screen doesnt want to respond. To use the touch screen, I have to unplug it first.
Since this is the 4th phone I have had this issue and it "seems" to have started with my DX when upgrading to Gingerbread, I wonder if it is a Gingerbread issue?
So no one else has noticed this issue? It is really irritating. I had the same issue with the DX/DX2 desktop dock. I had the dock replaced with the D3 desktop dock and have the same issue!
As soon as I dock, the screen doesnt want to respond correctly to touch. The car dock seems to work fine though.
I'm having the same problem and it was there pre and post root. When I am in HDMI mode, the screen is very laggy and sometimes completely unresponsive. If I unplug the HDMI the issue immediately resolves.
i've seen this sometimes, thought it might be the angle im holding it when the USB cable is plugged in.
Doesn't always happen tho and the dock works fine for me currently.
-smc
I have the issue with every charger except my car chargers... I also notice the problem if I plug into the headphone jack or HDMI port.
With the Droid X and X2, I had a similar issue (3 different phones) but with the Droid 3, I notice that not only does it not want to respond but it responds as if I touched somewhere else... It even responds as if I touched the screen when I am not even near the phone...
I took it in to Verizon and surprising enough, I was told it was normal!!!! Augh...
I do not have this issue. Just tried headphones, wall charger, and USB to my laptop and the screen was just as responsive as when the phone is unplugged. If you can narrow down a pattern I will gladly test more situations.
I noticed this when I was plugged into a brookstone international adapter that has a usb charger. Plugged into an old BB charger or my stock and it worked fine.
Actually I was in a bed and breakfast and my phone started to work on its own. Like it was haunted!!! Really crazy. I was able to repeat it everytime I connected this charger.
bishop0114 said:
I have the issue with every charger except my car chargers... I also notice the problem if I plug into the headphone jack or HDMI port.
With the Droid X and X2, I had a similar issue (3 different phones) but with the Droid 3, I notice that not only does it not want to respond but it responds as if I touched somewhere else... It even responds as if I touched the screen when I am not even near the phone...
I took it in to Verizon and surprising enough, I was told it was normal!!!! Augh...
Click to expand...
Click to collapse
Have you tried a different setups then the ones you use? Like at a buddies or neighbor? If the issue following you around it could be a sign. As a former poster said with the charger cables the touchscreen goes crazy. I had a cheap charger that froze/slowed up my screen. I think it may be a grounding/noise issue (from a laymen not an EE).
HDMI
I've had issues with the HDMI cable plugged in. The video doesn't seem to be a problem, but the sound is very choppy on my HDTV. This was the case with both my wife's and my D3. I wonder if it is a setting on the phone or my 42" JVC TV is a POS.
I just had my D3 replaced due to an issue with the GPS. The replacement has the same issue. As soon as I plug it into any charger, the touch screen starts acting flaky.
When I plug it into my desktop dock (with or without power), the screen starts acting as if I had been pressing it and selects random things on the screen.
I have found that if I push a USB plug tight into the charging socket on the phone, the screen works fine.
Is it possible that Android 2.3 uses the extra pins in the USB and HDMI cables? If so, can this be disabled?
Use the cable and charger that came with your phone, if you're still having problems after that then you have an actual problem.
Hi,
I also have this issue sometimes when I charge the phone (original US charger with EU adapter). The screen responds slowly.

Microusb port issues.

Hello. I have quite the issue, the phone's MicroUSB has seemed to stopped working. I remember one night I plugged it in the laptop to charge it and got an windows error, like the port failed, but I was too busy to handle it so I left it like that.
I should mention that I used that option "Usb fastcharge" from kernel.. Is it possible my port is broken? It won't charge now at all.. I tried different cables to no avail. Previously I had to move the cable into socket and I could get it charging, but now.. nothing.
If I plug it in the laptop, I have the monitor attached on HDMI and for some reason it disconnects the monitor while I have the phone plugged in. Also it changes the laptop's brightness while I have it plugged. Seems so weird, I don't have warranty on it.
Also if I simply leave it plugged into the wall charger/usb port, the phones MicroUSB just heats up. I get no charging indicator or anything.
Anyone been through this?

XZ2 Intermittent Charging

Hi,
When I plugged in the phone to some of my chargers (not original Sony), the charge seemed to cut off after few seconds. However only one of my chargers having almost none of the issue. Does my charging port need to be replaced or the phone itself requires specific type of charger/cable?
Chcek your USB plug, clean it or as well change the cab USB cable

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