On the Subject of Technical Keypad

The intern got to write this.

A Technical Buttons module has a display with 12 digits, 3 LEDs on the left that might be lit or unlit, a grid of 9 buttons each in a different colour, a progress bar on the right, and a hatch at the bottom.

To solve the module press the correct buttons following some rules.
Making a wrong input or running out of time at the last step will result in a strike and all inputs are reset. The solution stays the same though.

Each button will have a different colour and there are 9 colours in total, meaning each one will be present exactly once. The colours are: Red, Green, Blue, Teal, Yellow, Orange, Purple, White, and Black.

Step 1: Determining Valid Colours

Take the 3x3 grid of coloured buttons shown on the module and place a digit above and below each column, as well as to the left and to the right of each row.

The digits to place are determined by the string of 12 digits in the top display. The first digit will always be above the center column. Go forwards through the displayed number and if a parallel port is present proceed counterclockwise around the grid placing digits in the unfilled spots. If there is no parallel port do the same but go clockwise instead.

Next to determine valid colours, find the intersections of rows and columns where at least one digit matches. Every button that has at least one number in the same column match a number in the same row is considered valid.

Should the bottom LED be lit (it will be red), then invert this selection.

Step 2: Determining Colour order

Using the last digit of the serial number (use 1 if it is 0) and the top two LEDs, take a row or column of the table on the next page to get a colour order.

Top LED lit		Top LED unlit
Middle lit	Middle unlit	Middle lit	Middle unlit
row right to left	row left to right	column bottom to top	column top to bottom

	1	2	3	4	5	6	7	8	9
1										1
2										2
3										3
4										4
5										5
6										6
7										7
8										8
9										9
	1	2	3	4	5	6	7	8	9

With this you now have an order of colours which will be used in step 3.

Step 3: Input

Go through the colour order from step 2 and follow the rules for each valid colour as determined in step 1. Each rule will have you press or hold buttons, disregard validity for which buttons to press.
After finishing the input for one rule the progress bar on the right will fill.

Red: Press the button itself as well as all orthogonally adjacent ones.
Green: Press the button itself as well as all diagonally adjacent ones.
Blue: Press every button except the blue one.
Teal: Press every button in the same column.
Yellow: Press every button in the same row.
Orange: Press the button itself and all colours earlier in the colour order.
Purple: Press the button itself and all colours later in the colour order.
White: Take the battery count plus one. Hold the button for that many beeps.
Black: Take the indicator count plus one. Hold the button for that many beeps.

Final Step: Mashing

After doing the last input of the last rule, a siren will ring and the status light will spin with a red light.
The hatch at the bottom of the module should open and reveal a button with “Mash” written on it.

Mash the button until the module solves.