Boss RC-505 MkII firmware

Boss active Device launched 2021

effects

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Latest firmware

1.50

released 1 Jan 2025

Download firmware from boss.info · needs Boss Tone Studio for RC

Updater: Boss Tone Studio for RC
Manual: User manual

What's new in 1.50

Change the specification The values that can be set for AUTO OFF are OFF / 20MIN / 10HRS, and the default value has been changed to “20MIN (20 minutes)”. * For information on the Auto Off function, please refer to the [OWNER'S MANUALS]. Bug Fix The following bug has been fixed. Fixed an issue where the insert setting of track FX (beat scatter, beat repeat, beat shift, vinyl flick) does not work correctly.

Last checked 27 Oct 2026

Release notes on boss.info ↗

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Boss RC-505 MkII manual & official pages

Boss RC-505 MkII user manualopens in a new tab — boss.info
Boss RC-505 MkII on boss.infoopens in a new tab — boss.info
Download Boss RC-505 MkII firmware from Bossopens in a new tab — boss.info

How to update the Boss RC-505 MkII

Update via USB mass storage.

What you need

Boss Tone Studio for RC — the software Boss uses to load firmware onto the Boss RC-505 MkII. Download links below.

Just for reference. For complete and up-to-date instructions, always refer to the manufacturer's official firmware page.

Drivers & software for the Boss RC-505 MkII

The Boss RC-505 MkII is updated with Boss Tone Studio for RC, published by Boss.

Download Boss Tone Studio for RC from Bossopens in a new tab — boss.info