## On the Subject of Pixel Cipher

⢎⡲⠰⣉⠆⢎⡱⢸⡱⠀⣇⡀⢇⡸⠰⣉⢸⢪

• This module has a large display and 10-button keypad.
• To solve this module, follow the steps below.

### Step 1: Determine the Field

• Use the table below to get a field.
• This field will be used in Step 2 and 3.
Last digit of the serial number is...
Batteries 0 or 5 1 or 6 2 or 7 3 or 8 4 or 9
0~1
 3 8 4 7 2 5 0 1 9 6 5 7 1 1 9 3 4 0 6 2 8 3 4 9 0
 8 9 4 6 6 1 5 0 1 3 4 0 9 2 0 8 2 7 1 6 3 5 7 4 9
 1 0 7 7 2 5 6 9 0 8 4 4 1 5 6 3 1 9 5 8 3 2 0 9 4
 7 1 2 4 4 4 3 1 7 5 5 8 8 2 2 7 5 8 0 6 6 9 3 0 9
 6 5 2 1 7 7 8 5 1 0 4 2 6 0 4 3 3 7 3 1 0 9 5 9 8
2~3
 7 9 1 8 7 0 4 8 1 8 3 6 6 1 4 5 6 3 9 2 5 9 2 0 3
 9 7 8 0 1 8 2 2 5 5 9 1 1 7 9 4 3 6 4 6 2 7 3 0 5
 1 6 2 7 0 8 7 8 2 3 5 6 9 5 3 1 8 1 7 0 6 9 4 5 4
 5 7 6 1 6 9 2 9 1 8 7 2 8 6 2 4 3 7 4 0 5 4 3 5 0
 9 5 0 7 1 4 8 9 3 4 2 3 6 7 2 0 1 6 5 9 8 6 7 4 5
4+
 9 1 2 5 1 0 7 3 8 2 9 4 0 7 3 5 5 9 4 7 8 6 1 6 4
 0 4 1 1 3 5 3 7 2 0 5 6 9 8 7 2 6 9 4 7 4 5 8 0 1
 1 2 7 2 1 8 4 9 6 4 5 8 6 8 7 5 0 9 3 1 3 9 7 4 0
 3 9 2 3 3 8 4 6 1 7 1 5 1 8 6 0 0 7 0 6 9 4 5 2 4
 4 9 4 6 2 5 9 1 7 4 3 5 2 3 8 8 9 6 0 1 5 1 7 0 3

### Step 2: Decrypt Displayed Digits

• Split the encrypted numbers on the display into 5 number pairs in reading order.
• Convert each number to a digit using the field from Step 1. Each number's corresponding digit can be found in the cell at the number's position, counting in reading order (top-left is cell 1).
• Each pair will make a new two-digit number.
• Modulo each two-digit number by 26 and convert them into letters using A1Z26. This will form a keyword

### Step 3: Inputting

• Find the keyword's corresponding pixel art in the table below.
• Start with the top left cell in the pixel art. If that cell is black, press the corresponding digit in the same position in field 1. If the cell is white, do nothing.
• Repeat this for all cells in the pixel art in reading order.
 ACORN
 ARMOR
 ARROW
 CHORD
 CLOCK
 CROSS
 DELTA
 DONUT
 DUCKY
 EDGES
 EMOJI
 EQUAL
 HAPPY
 HEART
 HOUSE
 LIBRA
 LUCKY
 LUNAR
 MEDAL
 MOVIE
 MUSIC
 PANDA
 PEARL
 PIANO
 PIXEL