Problems with touch screen when screen is locked and phone is charging...

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Since I thought my phone, I've noticed an annoying problem. When my phone is charging in the screen is locked, I go to unlock the phone and the touch screen seems to have a problem registering my touch for the pattern password.

I would unplug it for a second to draw the unlock pattern, unlock the phone, and then proceed about while the phone is plugged back in. Then out of nowhere, it'll do the same thing.

Anyone experiencing this?


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Originally Posted by m3trella97

Since I thought my phone, I've noticed an annoying problem. When my phone is charging in the screen is locked, I go to unlock the phone and the touch screen seems to have a problem registering my touch for the pattern password.

I would unplug it for a second to draw the unlock pattern, unlock the phone, and then proceed about while the phone is plugged back in. Then out of nowhere, it'll do the same thing.

Anyone experiencing this?


Sent from my SGH-T989 using XDA App

There is another thread here somewhere that talks about the issues while being plugged in. I think this was one that was mentioned.

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i am not getting that problem, but if you call tmobile im sure they will switch the phone.

I've had this problem - but only when I used a different charger from the one included (even though it's a Samsung charger). Are you using the cable included with the phone?

Yea it has happened on mine but only if it was laying down when i try to unlock it. once i pick it up it was fine

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I can confirm this very issue on two GSII's I've used. It's annoying.

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This is a known issue with all variants of the Galaxy S2.

The Galaxy S2 is very sensitive to input voltage, and if it doesn't like what it's getting, the touch screen calibration gets a little funky.

Voltage-regulated chargers (ones that are big and blocky or have a bulb on the wire) tend to work well.

Don't bother exchanging it over this, it won't change anything. You just need a better charger.

Yes, I'm using the same charger came with the phone. I guess we will just settle this issue with the fact that it just gets a little funky When plugged in.

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Big thanks to everyone who responded to this thread, hopefully we can figure out what the problem is in the near future :)

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Originally Posted by manekineko

This is a known issue with all variants of the Galaxy S2.

The Galaxy S2 is very sensitive to input voltage, and if it doesn't like what it's getting, the touch screen calibration gets a little funky.

Voltage-regulated chargers (ones that are big and blocky or have a bulb on the wire) tend to work well.

Don't bother exchanging it over this, it won't change anything. You just need a better charger.

better charger yes

phone being sensitive not really

all Properly build chargers will not cause that problem

i purchase cheap 2A charger from Deal Extreme, but those are build good, not like some of the crappo accessories from ebay

BlackBerry chargers works good too