There are tiny stickers that say "OK" under a microscope over two of the backplate screws, to prevent tampering and inserting your SD card and having to do warranty replacements. If you didn't remove them first, they are now filling up the inadequate Phillips #000 head slots with plastic sticker.
Throw away the little screwdriver thing it shipped with, unless you need it for stabbing Smurfs.
If you have to drill out the screws, the spare ones shipped with the watch are better quality anyway.
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