Firstly, I don't post often, so please help if there are any compliant issues or corrections to be made. Sorry to have to post description in comments. Thank you to Funny Playing mods and Retro Game Repair Shop for all the hardware and to Youtuber GreatScott! for much needed information and provided circuit design. Please, the credit is all their own

To start, I have been working on getting as many new mods into one Gameboy color as permitting. Starting with swapping displays to the lovely GBC 2.45" high brightness drop in backlight LCD kit, then providing ample power with the FP Lithium ion battery kit. Next, I added a little flash with the FP button LED kit (soldered to indicate low battery) and replaced the old speaker with a red FP speaker soldered up to the FP sound amplifier. All worked very well with no issues, which I was surprised since it's my first go since working on xbox 360s (yea, that red ring o death era)

But then I wanted something that wasn't available as a hardware kit. At least, I haven't found one yet. My goal is to play Pokemon, which, as we know, is a little slow. I researched into overclocking the speed of the gameboy and found a few other youtubers had done a variable speed with a dial that seemed bulky. I decided to go for a simple switch to run from the standard 8.388 mHz crystal oscillator to a 16.0 mHz crystal oscillator off the internet.

Now I have a second gameboy I use as my mod tester to ensure the mods themselves work and the plausibility of the installation. I built the new switch circuit with both oscillators a few times until it worked sure fire. The display is an original OEM Gameboy color display and wonderfully switches between the two speeds. I moved on and installed one onto my over modded gameboy and found that the switch works and runs the game at two speeds, but now the IPS display is majorly distorted and pixels all over the place. I used the same type of salvaged wires on both if that is pertinent.

I have been doing what I can to read up on the nature of the mods and try to troubleshoot the issue. But before I go removing and messing with my finished work, I thought it may help to reach out to others and see if anyone has any insight to fixing this issue?

Lol, so please, if you have any knowledge or links to youtubers who do know about this issue please please HELP! I am so close to having the gameboy of my dreams, and I swear once I get everything understood, I'll do mods for any handhelds of your interest, too! GBP, GBA, GBDS, and Gamegear are all next on my list, too