RE: XPS15z L511z won't boot (blank screen ) and beep at any key stroke.
" but the screen stays blank and no matter wich key I press the laptop emits a beep ".
Please listen to the beeps again and then click on the link below. Report back your findings.
EDIT/ Beep Codes and PSA Diagnostic Chart
If an error occurs during startup that cannot be reported on the monitor, your computer may emit a beep code that identifies the problem. The beep code is a pattern of sounds: for example, one beep, followed by a second beep, and then a burst of three beeps (code 1-1-3) means that.....