solution by chompobar on Reddit
This is definitively how to open the box.
On Side 1, Arrange the lines so it spells HATE
On Side 1, arrange the lines so it spells OPEN. If this doesn't work, try LOVE.
On Side 5, the symbols are actually numbers that are doubled on each other to make it look like they are weird symbols. you need to arrange the numbers to add up to 15. This is hinted at with the XV on the right. make the combo for the top row/
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already found the solution.
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Here is a picture of the side 5 solution:
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On Side 6, you need to make the rows from top to bottom read: SUN, MOON, STARS
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shared a image on how to solve this:
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To do this, you need to click on the symbols on side 2. The corresponding symbols have been marked in the image above.
1.1 = S 1.2 = U. 1.3 = N 2.1 = M 2.2 = O 2.3 = O 2.4 = N 3.1 = S 3.2 = T 3.3 =A 3.4 = R 3.5 = S
Pressing these buttons shuffles the letter after you press the middle button on side 2. So press the symbol marked as 1.1 then press the middle button. Then check side 6. The letters will change.
Do this over and over until you get the correct spelling. Again, SUN in the top row, MOON in the middle, STARS for the second. This takes a bit. It's annoying, honestly. Once you have it, press the middle button. Then check side 6.
After you get SUN, MOON, STARS, you press the button on the bottom. It should look like this:
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This will fully unlock side III.
To solve side III, click on the symbols to make it match this image from
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:
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To solve side IV, I just had to click the bottom button. It opened up immediately.