Follow ending 1 up until you input a code.
Instead of inputting the given code, look through your logs for "Alien Glyphs". You should have six sets of two.
Explanation Overview:
Hint 1:
Hint 2:
*** Spoiler - click to reveal *** To find the beginning and end, look for glyphs that only appear once in the sets. The left one is the beginning, and the right one is the end.
Hint 3:
*** Spoiler - click to reveal *** Having found the beginning and the end, connect the patterns by matching the glyph on the right of a set with the glyph on the left of another to complete the sequence.
Solution: