How To Fix “1m sub-circuit board is not installed” Error on VBA and MyBoy

Game emulators are such amazing and brilliant applications created by generous programmers. This application allows users to play almost any games on a computer or mobile device without using the actual game console.

Featured Videos

However, upon using your favorite emulator, sometimes, you may experience a strange and annoying problem. Two of the most common problems are the Internal Battery Run Dry Error and White Screen issues for Visual Boy Advance GBA emulator.

The second most popular error is the “1m sub-circuit board is not installed“. Do not fret; many of you including me, experienced the same problem, and that’s what we are going to address in this article.

Hopefully this will fix your problem if you’re experiencing it right now.

Fixing the 1m sub-circuit board is not installed on emulator

Steps on how to fix 1m sub-circuit board is not installed error

Fixing 1m sub-circuit board is not installed error is straightforward, although not all many emulators have the feature to fix this issue. The fix is merely changing the save type from Flash 64kb to Flash 128kb.

Visual Boy Advance

Fix 1m sub-circuit board change save type 128k

In VisualBoy Advance
Go to Options -> Emulator -> Save Type -> and finally, select Flash 128K.


Fix 1m sub-circuit board error myboy flash 128k

For MyBoy (Popular GBA emulator for Android)
Go to More -> Settings -> Advanced -> Cartridge save type -> Select Flash 128K.

Why & How Does This Error Happen?

In most cases, this error occurs when you have 64kb save types instead of 128. Some emulators have a severe problem when saving a game; instead of 128kb it automatically saves to 64kb. If this happens to you, use the alternative fix below.

Alternative Fix

For Visual Boy Advance users, if the error persists after following the mentioned steps above, give this alternative solution a try.

Zorlon, the forum administrator of emuparadise created a version of vba-over.ini that will fix the issue. What the file does is, it auto-setup the games that do not auto-detect correctly.

Vba-over ini file to fix 1m sub-circuit board error

Download the file, extract, copy vba-over.ini, and paste it in the same folder location where your VisualBoy Advance is.

To Sum This Up

1m sub-circuit board is not installed is a common error that usually occurs when using Visual Boy Advance emulator or even to other popular GBA emulators you know.

Luckily, there’s a quick fix for this problem, and that’s by simply changing the save type to 128K; that’s it.

Did the fix mentioned above solve your problem? I would like to hear about your experience regarding this error and the steps you took to fix it.

About PokeCoder

I'm a Pokemon fan since childhood, and I love watching Pokemon movies and TV series. When playing Pokemon games, I use emulators, and I very much enjoy a game when I use a cheat. Join me exploring the world of Pokemon gaming using cheat codes.

Leave a Comment

31 thoughts on “How To Fix “1m sub-circuit board is not installed” Error on VBA and MyBoy”

  1. Still won’t let me save my game on Pokémon Gaia it continues to say save error and I’d like to be able to play after I beat the Pokémon league

  2. For vba, make sure you have all of the directories are set as the same file your emulator is inside of.
    Go to Options > Emulator >Directories…

  3. For reGBA emulator (often found on portable emulator devices like the PocketGO and RG350) you open the emulators menu, go to Display Settings, then change the “Boot from” setting from “Cartridge ROM” to “GBA BIOS”.

    • Hi there Bibbly Bing, thanks for sharing this information. Though I’m not familiar with reGBA emulator but I believe this is very useful.

  4. I did both of the possible solutions, but anyone could help me, the leyend of 1m sub-circuit board is not installed, keep on in my emulator

  5. Strangely, I have a Fire Red rom runs perfectly fine, but when I copy and save it somewhere else, the copy face 1M circuit board issue while the original still ok with Flash 64K.