For various reasons, you may want to carry out an upgrade of the esxDOS operating system on your DivMMC device.
Firstly, this must be done with extreme care as if something goes wrong, the device may end up inoperable and will require an EPROM burner (at least) to restore its functionality. You have been warned!
Assuming that the previous sentence hasn’t scared you off, here are links to instructions for various types of MMC device:
- DivSD Nano, DivSD Pico, Just Speccy 128 onboard SD by Piotr Bugaj
- DivMMC EnJoy series by Ben Versteeg
If other manufacturers would like us to carry a link to their upgrade instructions, please contact us on the Facebook group and we’d be glad to oblige.