EZ Flash Upgrade Guide
First let's get all the optional files for the EZ Flash just incase you don't have them
EZ Flash Firmware: https://www.ezflash.cn/zip/omegakernel20210824.zip EZ Flash Cheat Library: https://www.ezflash.cn/zip/omegacheatlibrary.zip EZ Flash Images: https://www.ezflash.cn/zip/IMGS.zip
GBATemp "Simple" Thread: https://gbatemp.net/threads/new-theme-for-ez-flash-omega.520665/

Use either the built in unzipping feature in Windows, or use a program like 7zip or Winrar to extract the files.

Plug in your SD card that you use for your EZ Flash, we will first copy over the IMG folder, the CHEAT folder, and the ezflash.bin file to the root of the SD card.

Now eject the SD card and plug it into your EZ Flash Omega.

Now plug the cartridge into your console. Boot the console holding the R button, and your EZ Flash should boot into update mode automatically.

Once the update is done the cartridge should restart and you should see the normal EZ Flash menu. Your EZ Flash is now updated the most current firmware.

Now that your cartridge is updated, we can install the theme. Plug your SD card back into your PC and open the Simple folder that you extracted earlier.

Here you will copy the BACKUP and SYSTEM folders to the root of the SD card.

Now select the IMGS, SAVER, RTS, CHEAT, and PATCH folders (if you have them) and drag them INTO the SYSTEM folder.

Now we can delete the official ezkernel.bin file from our SD card. We can then drag over either the light version or the dark version of the Simple theme. Rename the file to "ezkernel.bin"

Finally repeat the update process one more time on your Gameboy and you should now have an updated and upgraded EZ Flash Omega!
//Game ROMs .gba - GBA ROM .bin - GBA ROM .mb - GBA Multiboot ROM .agb - GBA ROM .col - ColecoVision ROM (Requires Cologne) .gb - Game Boy ROM (Goomba Color) .gbc - Game Boy Color ROM (Goomba Color) .gg - Game Gear ROM (SMSAdvance) .rom - MSX Cartridge ROM (MSXAdvance) .ngp - Neo Geo Pocket ROM (NGPAdvance) .ngc - Neo Geo Pocket ROM (NGPAdvance) .ngpc - Neo Geo Pocket Color ROM (NGPAdvance) .nes - NES ROM File (PocketNES) .pce - PC-Engine ROM File (PCEAdvance) .sms - Sega Master System ROM File (SMSAdvance) .sg - Sega SG-1000 ROM File (SMSAdvance) .sv - Watara Supervision ROM File (Wasabi) .ws - WonderSwan ROM File (SwanAdvance) .wsc - WonderSwan Color ROM File (SwanAdvance) .z80 - 48k ZX-Spectrum Z80 ROM (ZXAdvance) .c8 - Chip-8 ROM (Chip8Adv) .arc - 4kb Emerson Arcadia 2001 ROM File //Media .jpg - JPEG Image .jpeg - JPEG Image .mod - ProTracker Module file .bmp - Bitmap Image .pcx - ZSoft Paintbrush PCX image .mid - MIDI sequence .nsf - NES Music file (Nintendo Sound File) .vgm - SMS/GG music file .vga - aPlib Compressed SMS/GG music file .vgl - LZ77 Compressed SMS/GG music file .txt - Text Document .wav - Wave Sound (formatted in GSM 6.10) .k3m - Krawall Advance Sound .sb - MaxMod sound bank .lz - LZ77 Compressed Image .raw - Uncompressed Mode 3 Bitmap .ap - aPlib compressed Mode 3 Bitmap .bgf - BoyScout module .mda - Sharp X68000 Music .cwz - CWZ Music
