Roland D-550

Firmware discontinued

The manufacturer has stopped releasing firmware updates for this device. Last known version: 1.02.

You can still add it to your rig to keep an inventory and track its used market price.

Firmware is stored on a ROM/EPROM chip inside the unit; there is no software update process. Installing the final OS (v1.02) requires physically replacing the chip — a hardware service best performed by a qualified technician, not a user-installable software update.