--- title: The Symphony I/O firmware update fails or gets stuck description: The Symphony I/O firmware update fails or gets stuck --- [Skip to content](https://knowledge.apogeedigital.com/the-symphony-i/o-firmware-update-fails-or-gets-stuck#main-content) English Show submenu for translations [Contact us](https://knowledge.apogeedigital.com/kb-tickets/new?hsLang=en) ![Apogee Logo White.png\]](https://knowledge.apogeedigital.com/hs-fs/hubfs/Apogee%20Logo%20White.png?height=40&name=Apogee%20Logo%20White.png) Open main navigation Close main navigation - English Show submenu for translations - [Contact us](https://knowledge.apogeedigital.com/kb-tickets/new) - Go to apogeedigital.com Go to apogeedigital.com How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://knowledge.apogeedigital.com/?hsLang=en) 2. [Legacy Products](https://knowledge.apogeedigital.com/legacy-products?hsLang=en) 3. [Symphony I/O Mk 1](https://knowledge.apogeedigital.com/legacy-products?hsLang=en#symphony-i-o-mk-1) # The Symphony I/O firmware update fails or gets stuck This article is regarding an issue that may occur while following the instructions in this link: [Updating Symphony I/O Firmware and Software](https://knowledge.apogeedigital.com/updating-symphony-i/o-firmware?hsLang=en) If the firmware update fails or stalls and never completes: 1. Quit the firmware updater app 2. Power-cycle the Symphony I/O 3. Try the update again, with these tricks: -Connecting the Symphony I/O to a different USB port on your Mac -Connecting the Symphony I/O to a USB 2.0 Powered Hub -Connecting the Symphony I/O to an Apple keyboard -Try the firmware update on a different Mac if you have access to one Be patient it can take up to 5-10 minutes to complete.  You may have to try the firmware update several times before it gets through. It is not recommended to try downgrading back to the older firmware versions, as the issue with the update is not with the firmware, but with the updater app itself.   On some USB 3.0 equipped Macs, the Firmware Updater will freeze at 4% and never complete the update. To work around this, you need to use a USB 2.0 or USB 1 port. This can be a USB 2.0 or USB 1 port on a peripheral hub, Apple keyboard, or monitor display.  - [BOOM](https://knowledge.apogeedigital.com/boom?hsLang=en#main-content) - [User Guide](https://knowledge.apogeedigital.com/boom?hsLang=en#user-guide) - [Getting Started](https://knowledge.apogeedigital.com/boom?hsLang=en#getting-started) - [Troubleshooting](https://knowledge.apogeedigital.com/boom?hsLang=en#troubleshooting) - [FAQs](https://knowledge.apogeedigital.com/boom?hsLang=en#faqs) - [Duet 3](https://knowledge.apogeedigital.com/duet-3?hsLang=en#main-content) - [User Guide](https://knowledge.apogeedigital.com/duet-3?hsLang=en#user-guide) - [Getting Started](https://knowledge.apogeedigital.com/duet-3?hsLang=en#getting-started) - [Troubleshooting](https://knowledge.apogeedigital.com/duet-3?hsLang=en#troubleshooting) - [FAQs](https://knowledge.apogeedigital.com/duet-3?hsLang=en#faqs) - [Symphony Desktop](https://knowledge.apogeedigital.com/symphony-desktop?hsLang=en#main-content) - [User Guide](https://knowledge.apogeedigital.com/symphony-desktop?hsLang=en#user-guide) - 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