My phone didn't wake up from sleep.

When I turn it on, after the vibration screen appears with red pixels, blue and green and it stucks there. When I open the slider the screen turns off.

Before the problems were:

The phone after locking the screen (automatic or manual) did not respond when pressing the buttons, the screen did not light. The phone was still on, still ringing when a call or message, the music goes on.

The only solution I had is to remove the battery to reset the phone.

There were times I had to removed the battery a second time because it started (vibrating response) but did not show the emblem of Sony Ericsson and it sucked there. This problem was repeated and had to remove the battery up to five times for a single full boot.

I'd tried to repair the phone using PC Companion (reinstall the operating system) and had not work.

Sporadically lines appeared red, blue and green during use.