Several problem with touchscreen

[danielvargas]

I have a C6903 and Android 4.3 (14.2.A.1.136)... The touchscreen work fine in normal use... But when i play and the Phone turns hot with a high temperature the touchscreen too, then it starts to work very very bad (when i touch on one point starts to do 'circles' por order actions that i didn't do...). What should i do? Is it a problem for SAT? Sorry for bad english, i'm spanish.

[danielvargas]

And then... Will i change my phone to solve the problem?

[ArcS_SG]

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@danielvargas wrote:
It doesn't work, when the phone goles hot the touchscreen works very bad...

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I had a similar problem but my touchscreen went crazy and flashed differenet screens within seconds, I did the diagnostics and it showed broken lines...so I sent in for repair at SONY repair centre and after phone came back the phone was much cooler and seldom heats up even with heavier usage.

[jkey]

Other than that.. Some of the Sony phone also having the phantom touch screen problem. Need to keep the screen clean everytime to overcome the problem. Weakness of Sony phone

[danielvargas]

Tank you all for answers.

So... Is it a hardware problem? Should i carry it to SAT?

[danielvargas]

Thank*