Mojo Dual Manual "old model" - firmware and software

The Crumar Dual Manual organ "old" model is a specific organ manufactured until May 2018. Starting from May 2018 that instrument received an hardware update, so important that we changed the name of the product to "Mojo XT". 

The focus of this article covers the firmware and software of these two instruments. The architecture of those instrument was quite simple even if it requires attention: they didn't have only a firmware, they used to have 2 separate digital codes, one is called "firmware", the other one is called "software". The firmware is a small piece of software resident inside one microprocessor controlling the behaviour of the panel of the instrument and the 2 keyboards, the software was the "sound engine" of the instrument. While to load the first one it was necessary to send Midi data to the instrument, the second one was similar to a normal and standard computer software and to upload this one a USB key was needed. Firmware and software works together and they need to "match".

While Mojo XT never received any software and firmware update because it wasn't necessary, the Mojo Dual Manual "old model" received dozens of updates during the long production life. What it's really important to understand, it that, at one point in 2015 we released a firmware called 6.1, a simplified version that was more friendly. Starting from 2016 this firmware was the only one officially supported by us and we have stopped supporting older firmware, for example 2.5. It was still possible to ask us a copy of it, and still is, but we no longer provided and we still do not provide support neither in the use nor in the installation of the old firmwares.

Attached there's a document explaining the difference between simplified firmware 6.1 and firmware 2.5 and also a table showing the edit functions of the old and unsupported firmware 2.5.