Beginner Open/Closed Principle is stage 2 of the Motherboard Troubleshooting minigame in Thelxie's Fantastic Adventures event for Genshin Impact 4.2. Check out the stage 2 Signal Circuit solution and rewards for the day 1 of the event here!

Motherboard Troubleshooting Guides
Stage 1	Stage 2	Stage 3	Stage 4
Stage 5	Stage 6	Stage 7	Stage 8

Beginner Open/Closed Principle Signal Circuit Solution

Stage 2 Best Circuit Setup

Activate the Inductive Switch Via the Green Signal Source

The penguin from the green source signal can trigger the green circuit that is connected to the orange endpoint. Make sure not to get confused about the color and position of the inductive switch; if a penguin walks on it and activates it, it will activate the matching circuit wherever it is linked.

Link Signal Sources to their Appropriate Endpoints

The circuit board of stage 2 will have two endpoints. Check the color of the signal source (where the penguin is standing) and find the endpoint with the same color; this should be its endpoint. To complete the debugging process, ensure that the circuit is connected to the same color.

Beginner Open/Closed Principle Information

Beginner Open/Closed Principle Details

Beginner Open/Closed Principle Stage Map
Circuit Limit	15

There will be two endpoints in stage 2 of Motherboard Troubleshooting, and you can lay down up to 15 circuits!

Stage 2 of Motherboard Troubleshooting

Beginner Open/Closed Principle is stage 2 of the Motherboard Troubleshooting sub-event in Thelxie's Fantastic Adventures event!

Motherboard Troubleshooting Event Guide

Beginner Open/Closed Principle Rewards

All Stage 2 Rewards

Objective	Rewards
Complete Debugging the Motherboard	Primogem x40 Mora x50,000 Varunada Lazurite Fragment x4 Thelxie's badge x 4

Genshin Impact Related Guides

Thelxie's Fantastic Adventures Event Guide

Thelxie's Adventures Mini-Game Guides

Thelxie's Fantastic Adventures Event Guides
Motherboard Troubleshooting	Record of the Search For Glory	Purgation Counterstrike

Motherboard Troubleshooting Guides

Motherboard Troubleshooting Stages
Basic Circuit Structure	Beginner Open/Closed Principle	Concise Synchronous Strategy	Ingenious Assemblage Ideas
Efficient Signal Distribution	Precise Sequential Ranking	Asynchronous Signal Processing	Comprehensive Control and Mastery

Purgation Counterstrike Guides

Purgation Counterstrike Stage Guides
Swirling Vortex's Paean	Poem of Thunder Intertwined	Ode to the Winding Winds
Rejuvenating Aria	Chorus of Triumphal Advance

Thelxie's Adventures Quest Guides

Thelxie's Fantastic Adventures Quest Guides
Water Imp's Conjecture	Prince's Country
Miraculous Crown

Other Related Event Guides

Related Event Guides
Free Freminet Reward	How to Get Thelxie's Badge
All Thelxie Morse Codes	Debug the Motherboard

All Genshin Impact Events

List of Current & Upcoming Events