This release consist of IPS patch for AGB_FIRM and ROM converting program, both done by me.
Credit for patched New3DS AGB_FIRM goes to motezazer

My method require you to install patched AGB_FIRM CIA into NAND memory replacing exciting one. Now... AGB_FIRM is an optional System Title that was introduced with 3.0.0 firmware update and was never included with Card updates. Which means you can't really break system by deleting it or installing corrupted AGB_FIRM, in fact you may even don't have it installed (if you using old system and only updated from game and never used update via internet). But! You may break system if you delete wrong system title in process, so I don't take any responsibility for any possible damages. If you are not comfortable with it - stop reading right here.

Basic steps for Old3DS / 3DS XL / 2DS:
1) Download '0004013800000202' title 'v3665' using 3DNUS

2) Launch 'Old3DS_AGB_FIRM_v3665_SignPatcher.exe' and apply patch to '0004013800000202.cia'

3) Try to install patched CIA from FBI:

Warning: Spoilers inside!

Don't forget change destination to 'NAND' (L button), if you don't have any errors - congratulations, you're finished. If you got error, that means you need to remove previous version of AGB_FIRM before you can install patched one. Switch mode to 'Delete Title' and and destination to 'NAND' and scroll down until you find title with Title ID 0x0004013800000202:

Warning: Spoilers inside!

Triple check you selected correct title and press delete, after this you should be able to install patched CIA without any errors.



After installing patched AGB_FIRM you can start using my '3DS Simple GBA Converter' program and play your favorite GBA games. Enjoy.





For New3DS process basically the same except Title ID is 0004013820000202 v4816.


Mirror:
http://rghost.net/8LfLLG7vy