Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to fix a laptop screen [title] Unplug the laptop and remove the battery. [step] Make sure there is no power going into the laptop, as you do not want to work with any live wires or electricity. Slide out the battery so the computer is not on or powered.

Ending1: [title] Disconnect the laptop from the printer. [step] Get the battery out of the printer. Ending2: Take the battery with you to the computer to take it out. [substeps] If you have a laptop charger, you can disconnect the charger before you put it back in. Ending3: [substeps] Keep the battery in a safe spot, as you will need to put it back in later. [title] Remove the rubber screw covers on the screen. Ending4: [substeps] Press and hold the " power " button to power the laptop back on. [title] Loosen and separate the back panel, if possible.

Answer format: ending1/ending2/ending3/ending4