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Browse and download IPSW firmware for any Apple device, access trusted files, and use our IPSW firmware install guide to install or restore your device safely.
Watch6,4 Firmware Guide
For anyone updating or restoring a Watch6,4, this page breaks down the available firmware into two groups. Signed versions are what Apple currently supports, meaning installs and restores through Finder or iTunes should go through without issues. Unsigned versions sit below that, kept for reference since Apple has stopped accepting new installs for them, though they’re still useful if you’re trying to track down when a particular build was released. Download links throughout lead directly to Apple, so there’s no intermediary step involved.