Flip unit over.

Slide razor blade under the QC sticker, it hides one of the screw holes. You should park it on top of one of the labels for future use. That is if you wish to pretend you have not opened a device you own.

Remove 10 screws. Four of them are in deep narrow holes which presumably are intended to prevent casual repair like this. You will find most regular #2 philip's screwdrivers are not long and/or narrow enough.

The hole the red arrow is pointing to, is not a screw hole.

The #2 Philips screwdriver must have a shank at least 8" long. If you have an insulated electrician's driver which might be long enough, it is probably too wide for the hole.