Depends on how you look at it. GrapheneOS only supports devices which recieve hardware firmware updates. That firmware is closed-source, but the OS entirely is.

There isn't really a 100% open-source phone anyway.

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Competing with Apple and Google - A Weekend Discussion

> Isn't GrapheneOS fully open source

Depends on how you look at it. GrapheneOS only supports devices which recieve hardware firmware updates. That firmware is closed-source, but the OS entirely is.

There isn't really a 100% open-source phone anyway.