This is the HP Chromebook 11 G5 Education Edition, Commonly used in schools.

DO NOT REPAIR SCHOOL OWNED DEVICES YOURSELF. Schools enact specific policies and generally do in-house repairs. You can get in a lot of trouble with your school IT department for opening your school issued device yourself.

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To start, remove all screws on the bottom of the device. This includes 10 PH1 screws, all of which are hidden by a rubber insert. This can be easily done with your smallest flat head screwdriver or something like a paperclip.