MMFS Update Utility for ElkSD-P1
--------------------------------


Purpose
-------
Updates flash memory on the ElkSD-Plus1 R2 board from the default MMFS 1.44 to MMFS 1.61


Requirements
------------
This update is for the ElkSD-Plus 1 Revision 2 (R2) only, it must not be used on the R1 cartridge. You can visually determine which version you have by checking the side of the cartridge for a jumper block. The R1 has this, the R2 does not.

DO NOT USE THIS UTILITY ON AN R1 ELKSD-PLUS1. YOUR CARTRIDGE WILL BE BRICKED IF YOU DO.

Before using the updater please ensure your ElkSD is in the cartridge slot CLOSEST TO THE KEYBOARD.

Usage
-----
Copy the included beeb.mmc file to a FAT32 formatted SD card of less than 8GB. Insert the SD card into the ElkSD cartridge and switch on the Electron. At the BASIC prompt, type:

*CAT

to check the SD card is reading correctly. You should see three files 'update', 'MMFS161' and 'MMFS144' listed. Next, type:

*UPDATE "MMFS161"

the updater will now run and flash in MMFS 1.61. When it prints 'complete' switch the computer off and back on.


*** WARNING ***
---------------
There is a small but real chance the flashing process may fail and cause the ElkSD to become non-functional ('bricked'). It is STRONGLY recommended you only update MMFS if you absolutely need to. A failed flash is not covered under warranty - however, if you brick your board please email support@ramtop-retro.uk, I will generally unbrick boards for the cost of postage.

Credit
------
Updater copyright 2024-2026, G. Colville. Freely redistributable for non-commercial purposes provided the contents of this archive remain unchanged.

Archive created 26/10/2026 for MMFS 1.61