Firmware discontinued
The manufacturer has stopped releasing firmware updates for this device. Last known version: 1.07.
You can still add it to your rig to keep an inventory and track its used market price.
Update via SD card. Download sp404_sys_v107.zip from Roland support page, extract sp404sx_up.bin to the root of an SD card, insert into the SP-404SX, and power on — the update runs automatically. Use AC power only; never power off during update. Remove the update file from the SD card after completion.
Last firmware page →opens in a new tab — roland.com