DivIDE

Some time ago I purchased a DivIDE 2k14 interface for my ZX Spectrum +2. This particular incarnation of the popular DivIDE and DivMMC interfaces seemed like a good choice with its Kempston compatible interface (for those games that don't work with the Sinclair interface built into the machine), and of course four flashable firmware slots, so I could easily switch between Fatware and ESXDOS.

The interface is actually advertised as being flashable, which I guess most people would assume means they can update the flash from software.

As it turned out, this was not possible.