There are 20 Remnant Glyph Puzzle Solutions & Locations in Mass Effect Andromeda. Solving all puzzles unlocks the Cryptographer trophy or achievement. This guide shows them in chronological story order.

For "Cryptographer" you must solve all 20 puzzles in a single playthrough. This is HIGHLY MISSABLE!
6 out of 20 puzzles are missable because they are inside remnant vaults that cannot be revisited after completing them, or in quest areas you can't go back to. The missable ones are marked in the overview below.

Most of them are located at Alien Monoliths or inside Remnant Vaults. Each vault contains at least 1 missable puzzle! If you miss a puzzle it will lock you out of the trophy.

The Remnant Puzzles are similar to Sudoku. First you must locate hidden glyphs (they are always in close proximity to the puzzle). Use your scanner to follow the yellow cables from the remnant console to the glyphs and scan them.

Now you must decrypt the Remnant Code by assigning the glyphs to a grid. No row or column can include repeats of the same glyph (only one glyph of each type per line). The same goes for each quadrant block (usually four quadrants divided by glowing lines). You cant have two of the same glyphs in one quadrant.

Start with the lines or blocks that are only missing one glyph. This will immediately give you the last glyph for that line (whichever one is not in the line yet). Then move to the lines that are missing 2 glyphs. Piece by piece youll get closer to the correct combination. You can also use Remnant Decryption Keys to solve the puzzle immediately (items that are sometimes found in chests).

TIMELINE (sorted by planets and quests):

Planet: EOS
#1 - Main Mission: A Better Beginning - 0:05
#2 - [MISSABLE] Main Mission: A Better Beginning - 1:14
#3 - Free Roam - 3:40
#4 - Free Roam - 5:38

Planet: Havarl
*You can choose whether to go to Havarl or Voeld first. It doesn't matter to which planet you go first.
#5 - Main Mission: Helping Havarl's Scientists - 7:01
#6 - [MISSABLE] Heleus Assignment: A Dying Planet - 7:40
#7 - Free Roam - 9:04

Planet: Voeld
#8 - Allies and Relationships Quest: Peebee Secret Project - 10:51
#9 - Restoring a World - 11:17
#10 - Restoring a World - 12:10
#11 - Restoring a World - 13:14
#12 - [MISSABLE] Restoring a World - 14:36

Planet: Kadara
#13 - Heleus Assignment: Healing Kadara's Heart - 15:07
#14 - [MISSABLE] Heleus Assignment: Healing Kadara's Heart - 15:56

Planet: H-047C
#15 - Heleus Assignment: The Remnant Tiller - 16:37

Planet: Elaaden
#16 - Heleus Assignment: Taming a Desert - 17:12
#17 - [MISSABLE] Heleus Assignment: Taming a Desert - 17:58
#18 - Heleus Assignment: Investigate the Remnant Tiller - 18:38
#19 - Free Roam - 19:50

Planet: Khi Tasira
#20 - [MISSABLE] Main Mission: The Journey to Meridian - 20:53