Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to clean your cell phone [title] Turn off your phone and disconnect any power supply. [step] Remove the case and any screen protector. If you have cracks in your screen do not remove the protector.

Ending1: You should leave the screen protector on the phone. [title] Clean up the charger and power supply. Ending2: [title] Remove your battery if you are able to do so. [step] This may, however, invalidate your warranty. Ending3: Wash down the glass with an alcohol-based degreaser cleaner or a brush or vacuum. Put the newly cleaned cell phone in a clean, soft, airtight container. Ending4: Use a soft cloth to gently wipe away any cracks or gouges in the screen. The screen protector is a thin plastic container with two compartments that hold all the liquids that you'll use to clean your phone.

Answer format: ending1/ending2/ending3/ending4