Nintendo DS Lite Console "touch scree" Questions

...touch scree most of the time i use my touch screen my ds lite turns off, i already tried replacing the lcd and the touch screen but just the same. anyone got a solution. TIA check the main supply of ...

...touch the power butter hold it iuntil you hear two beeps on the second beep let go and the main system ovveride scree will show up click on restore settings to default and it should go back to ...