Whether your using pre cut/modified shells, or original/OEM shells, trimming and cutting the shell is required. This also applies to whether your using an IPS backlight mod or keeping it original. 

AGB 32 pin HDMI Converter | Install Guide

AGB 40 pin HDMI Converter | Install Guide

Hand Held Legend

HHL Wiki

Hand Held Legend Wiki 

Game Boy Pocket Screen Comparison

Game Boy Advance Screen Comparison

IPS Comparison Info

IPS Troubleshooting Guide

Headphones Working But Speaker Is Not

Power Switch Cleaning Guide

IPS LCD Dry Test

Soldering Iron Guide

Modding Tips

Identifying 1 Chip or 2 Chip | Game Gear

Game Gear

Electrolytic Re-Cap Guide

Pro Controller Disassembly

Nintendo Switch

GameCube Controller Disassembly

GameCube

DMG Disassembly Guide

Game Boy (DMG)

GBP Capacitor Diagnostic

Game Boy Pocket

GBC Capacitor Diagnostic

✂️ GBC Shell Trimming

Game Boy Color

AGB Capacitor Diagnostic

AGB Disassembly Guide

✂️ AGB Shell Trimming

Game Boy Advance (AGB)

GBA SP | IPS LCD Dry Test

GBA SP | Hinges

GBA SP Capacitor Diagnostic

GBA SP Disassembly Guide

✂️ SP Shell Trimming

Game Boy Advance SP

Console Guides

All Versions Capacitor Kit | Game Gear

GCC Snapback Flex PCB | Install Guide

🔊 Audio Mods

🔋Power Mods

📺 Display Mods

Game Boy Pocket/Light

✨ Aesthetic Mods

🔋 Power Mods

Display Mods

Atari Lynx

Install Guides

⚡EZ-Flash Omega Troubleshoot

🔋 Power Switch Is Too Small

GBC & GBP | How long will the CleanJuice last?

GBA & DMG | How long will the CleanJuice last?

GBA & DMG | How will I know when the battery is low?

GBA CleanJuice | Drain Fixes

GBC & GBP CleanJuice Air | Fit Issue and Charging Solution

GBP & GBC CleanJuice Air | Indicator Lights

GBA & DMG CleanJuice | Indicator Lights

🧃 CleanJuice Modules

RetroGlow for GBC | User Guide

Product Guides

Nintendo Switch Bluetooth Controller Protocol

Developer Center

Affiliate Guidelines

AGB 32 pin HDMI Converter | Install Guide

Shell Trimming and Setup

Guides for using SP (AGS) Displays

Guide for using modern IPS kit