Touch screen acts weird while charging

[purpfiction]

whenever i have the device plugged into via USB it doesn't respond well to touch based commands. anyone else deal with this??

 

[zirkdog]

BIONIC does this too. I searched around and found somewhere that it's one of those "known issues. "

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[Caren4u2]

I always experience difficulty with the touchscreen, when I am charging...period, especially when battery life gets above 80%.

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[NiteCloak]

When plugged in the electrons in your device become super excited, and unable to contain themselves, bounce up under your touchscreen, screaming "Yeah!" (you can hear them if you put your ear real close). This agitation effect of the touchscreen causes temporary inaccuracy and instability.

[Disclaimer: Not a real tech response]

 

[NoBloatware]

Yeah, this seems to be normal.

 

[FoxKat]

When plugged in the electrons in your device become super excited, and unable to contain themselves, bounce up under your touchscreen, screaming "Yeah!" (you can hear them if you put your ear real close). This agitation effect of the touchscreen causes temporary inaccuracy and instability.

[Disclaimer: Not a real tech response]

Funny but you're not that far off. It's due to a combination of fluctuations in line current which translate into variances in the voltages being supplied to the battery, and any lack of proper filtering of that charging voltage by lower quality chargers, coupled with the battery current draw which also fluctuates as it's charging. These variances all confuse the circuitry that monitors capacitance levels of the digitizer surface and fools it into thinking your finger is somewhere it is not or thinking it's moving.

Sent from my DROID RAZR using Tapatalk

 

[purpfiction]

Funny but you're not that far off. It's due to a combination of fluctuations in line current which translate into variances in the voltages being supplied to the battery, and any lack of proper filtering of that charging voltage by lower quality chargers, coupled with the battery current draw which also fluctuates as it's charging. These variances all confuse the circuitry that monitors capacitance levels of the digitizer surface and fools it into thinking your finger is somewhere it is not or thinking it's moving.

Sent from my DROID RAZR using Tapatalk

The more you know!

 

[Robotics]

Get your phone away from any RF would be my first suggestion. Curious if you are using the USB cord that came with the phone or some other after market cable. If you plug it into the wall charger, with the same USB cord, does it still happen? And if it still happens are you using the charging adapter that came with the phone?

 

[greekchampion04]

im not the person you are asking... but yes to all of the above with all stock cord, plug, ect.

also had this happen with the OG and DX. Seems to just be "one of those things"

 

[bsmith0731]

It could happen when your power source doesn't have the recommended juice to charge your phone.

I'm very use to this with my iPhone when it's plugged into a weak inverter.

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[bens42608]

My BIONIC does this too. I can't type a text while it's plugged in because it's like a ghost is tapping his fingers around on my keyboard.

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[purpfiction]

Interesting enough when I use my 3 foot kindle charger to charge my phone it works fine...

 

[FoxKat]

Get your phone away from any RF would be my first suggestion. Curious if you are using the USB cord that came with the phone or some other after market cable. If you plug it into the wall charger, with the same USB cord, does it still happen? And if it still happens are you using the charging adapter that came with the phone?

RFI (radio frequency interference) can certainly cause this too, but the greater cause is the charger blocks themselves. I have charger blocks from many different manufacturers which I've collected or bought at yard sales, including Apple, HP, Jawbone, LG, Motorola,Plantroncs, RIM (Blackberry), & Verizon, as well as several no-name ones, and nearly all create "ghost touching", though by far the Motorola charger creates the least.

And to address the second part, I use the original cable in most cases, although I will often use a shielded USB extension, but it doesn't seem to make a difference. I will do further testing to confirm or deny.

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[nonnasmyladie]

Try buying a charger with different voltage too much voltage or too little cab cause this

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[purpfiction]

I will test my stock charger with my IMP1000 tomorrow and see how that affects it.