Screek jerky & unresponsive when charging
 

Title says it all really -

when my N9 is charging, the screen becomes very unresponsive. It won't register my finger swipes, or touches, or does so jerkily, resulting in very unpredictable behaviour - screen not changing, for example, or an application opening instead of moving from one screen to another, or just nothing happens at all. Zooming in and out, or selecting an icon to move on the app screen, is almost impossible, as everything just jumps around.

At the same time, the Swype keyboard is unusable, the line is full of jaggies and missing bits and little shoots that go off sideways. I just get random letters.

And the little charging indicator at the top, instead of filling smoothly up to the top and reverting back to the bottom, jerks up and down really fast and in an unsteady way.

Meanwhile, I can't unlock the phone by double-tapping on the screen - nothing happens. I have to press the power button to unlock. Luckily I have it set to get past the lock screen with a double press, because otherwise I would be stuck on that screen, unable to get rid of the wallpaper.

I've checked CPU while it is behaving like this and see nothing unusual. It only seems to occur while it is charging. And once the battery is charged (or I unplug the adapter) the phone becomes normal again. And sometimes it is normal while charging - though not often.

Anyone seen behaviour like this?

Re: Screek jerky & unresponsive when charging
 

Change your charger.

Re: Screek jerky & unresponsive when charging
 

There was some big thread about this well-known issue, and a bug has been raised, but I just can't seem to find it...

Re: Screek jerky & unresponsive when charging
 

Is it the wrong voltage? I use more than one charger.. don't think there is a difference between them.

Re: Screek jerky & unresponsive when charging
 

I have the same issue with the N9 charger.
The old N810 charger together with a micro USB adaptor OTOH works fine.

Re: Screek jerky & unresponsive when charging
 

OK, so using a non-Nokia adapter appears to be the problem... switched to the standard supplied Nokia one and no issues. Though the little charging icon is still zipping up and down like crazy.

Re: Screek jerky & unresponsive when charging
 

What's happens if you charge it via USB port?

Re: Screek jerky & unresponsive when charging
 

AFAIK using most chargers results in this problem. I've read somewhere that the current interferes with the capacitative screen hence this problem.

Hope Nokia manage to get a fix of this but i think due to the hardware design its not going to be an easy fix.

Re: Screek jerky & unresponsive when charging
 

I do not have this problem at all.

Re: Screek jerky & unresponsive when charging
 

No issues with my N9s too... I've made calls while charging... all smooth & perfect.

Re: Screek jerky & unresponsive when charging
 

It appears to be a hardware issue. The Lumia 800 shows exactly the same behavior with exactly the same chargers.

Re: Screek jerky & unresponsive when charging
 

Not really because when I charge it with some cheap generic ones found in quickie marts it shows this behavior, but I charge with motorola charger in my office and its perfectly fine, at home I use computer to charge it. and I remember someone on one of the thread mentioned it had to do with how the wiring on the outlet was earthed, and well it seems it was the case I used the same charger that showed this on my N9 on different outlets, friends home, in office and my own home and in class. In friends home it is perfect, in office it is perfect but in school and my home it makes the screen go ape ****.

Re: Screek jerky & unresponsive when charging
 

charging with what? If charging with the supplied adapter then it is beside the point... post is about problems charging with non-Nokia charger.

Re: Screek jerky & unresponsive when charging
 

Not exactly. Though I would not say my N9 is unusable when charging (via the Nokia charger that came with my N900), is does indeed affect the screen sensitivity. Can be eratic at times, but mostly can be worked with. Seems like something that would be a recall on a car....not good. How can a device as complicated as this get to consumers without something like this being discovered?

Re: Screek jerky & unresponsive when charging
 

I have experienced this when plugging my n9 into my laptop. I have multiple AC adapters for my laptop and I only experience the symptoms when using one of the adapters. If I unplug the adapter while the n9 is connected via usb, the screen immediately becomes responsive again.