Gameboy 1MB 128KB SRAM Flash Cart (Ultra low power, Perfect for LSDJ, Custom boot logo option)

$29.00

What do we mean when we say ultra low power? We mean it consumes the same power as a genuine cartridge and sometimes can be even lower power than them! It seems to shine when the Gameboy is under a high load. This is likely the lowest power 1MB flash cart available today!

This re-programmable Flash Cartridge is MBC5 (with some MBC1 support) which allows you to play most of the later released Gameboy/Gameboy Colour games including some of the Pokemon games (no RTC support), Zelda DX, LSDJ, etc and allows you to re-flash it with any flasher like GBxCart RW that supports the MX29F800C.

Excellent for LSDJ. Works with GB Studio v1.1.0+ with saving if you wish to develop your own game. Check this list of Gameboy games to see the ROM/RAM size and MBC type your game will have, you would be looking for MBC5 games but most MBC3 games should work and some MBC1 games may work.

Updated revision PCB v2.1 (requires quick soldering):
– Allows for a custom boot logo which takes 16KB, if your game takes up the full 1MB flash, the last 16KB bank will be overwritten. The custom boot logo works on the DMG, Pocket, GBC (05, 03) and GBA 40pin. The original boot logo will appear on these devices: GBA 32pin, GBA SP and Super Gameboy.
– Allows for 8KB RAM locking useful for MBC1 games like Donkey Kong Country 3.
– Allows for MBC1 ROM banking – requests for bank 0 gives bank 1, useful for games like the original Zelda – Link’s Awakening.
Check which jumpers to bridge with solder here.

Questions? Jump on our Discord server where we and other users can help you or contact us via Twitter.

This cart works on every Gameboy system – GB, MGB, GBC, GBA, GBA SP and the Game Boy Player. Games that require more than 1MB of ROM won’t work.

Comes in a generic clear or grey Gameboy cartridge with our label. Each unit is assembled in house and is tested on a Gameboy Advance. You can supply the ROM file for us to flash the cart if you like, it will be tested for 20-30 seconds to ensure it works.

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Description

Specs
ROM: 1MB Flash (MX29F800C)
SRAM: 128KB battery backed with a CR2025 (should last 8 years or more) or CR2032 (should last 10 years or more)
MBC: MBC5 (with MBC1 mode by bridging 2 pads)

Most MBC3 games should work.

Orders place after 25 Sep 2020:
MBC1 games that won’t work: Any that needs more than 8KB RAM or 1MB of ROM. Games must be flashed on MBC5 mode first.
Orders placed before 25 Sep 2020:
MBC1 games that won’t work: Any that needs more than 8KB RAM or 512KB of ROM.

The PCB finish is ENIG, Gold fingers (on the edge connector) with a 45 degree bevel to give the maximum life for insertion/removal of the cartridge.

When you place an order, if you would like the flash cart to be programmed with a ROM, you need to supply it to us via email (you can reply to your order notification). It will be tested for 20-30 seconds on a Gameboy Advance to ensure it works, if it doesn’t work, we’ll contact you. If you don’t specify a ROM, it will be loaded with LSDJ Stable 8.5.1.

LSDJ users who use the custom boot logo should know it will fail the ROM check because it’s missing the last 16KB bank (which is all blank) so you will need to restore an existing save file to it first and it will work fine.

Demo video showing what the custom boot logo looks like:

Additional information

Weight 25 g
Cart Colour

Grey, Clear Blue, Clear
Cart Label

Yes, Not required, Include separately so I can place it later
Battery

CR2025, CR2025 holder (no battery)
Pre-loaded ROM

I will provide a ROM to flash by email, Not required (LSDJ 8.5.1 will be flashed)
Flash carts

Custom boot logo, Gameboy carts, GB Studio support, Low power, LSDJ compatible, MBC1 support, MBC3 support, MBC5 support, Saving supported

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