Boss RC-505 MkII
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Current Firmware
1.50
Update via USB mass storage.
Just for reference. For complete and up-to-date instructions, always refer to the manufacturer's official firmware page.
Firmware pageopens in a new tab — boss.infoFirmware History
Changelogs summarised from the manufacturer's release notes.
1.50
2025-01-01
Changed AUTO OFF default value to "20MIN" (adjustable to OFF/20MIN/10HRS). Fixed track FX insert setting issues for beat effects.
Release notesopens in a new tab — boss.info
FAQ
What is the latest firmware for the Boss RC-505 MkII?
The latest firmware for the Boss RC-505 MkII is version 1.50, released on 2025-01-01. FW//RADAR checks the manufacturer's official sources for new releases.
Where can I download Boss RC-505 MkII firmware?
Directly from Boss's official firmware page — FW//RADAR links to the source and never hosts firmware files. Official firmware page →
Manufacturer page →opens in a new tab — boss.info
Manual →opens in a new tab — boss.info
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