My laptop won’t turn on and there are no lights turning on/flashing

1. Insert a battery from another (same model) laptop that you know is working.
2. Try with just the cable attached, remove the battery.
3. Try with a different power cable, this can be split into 2 parts so can be interchanged with the one that isn’t working to see if it a specific part of the cable

My Monitor won’t turn on at all.

If there is absolutely no sign of life then try toggling the power switch. Check the power cable is securely plugged in at each end. Try swapping the power cable for one you know works…..