The Secure Enclave may not support OTA. Yes, it assumes that there's no bugs that need to be fixed overnight but that's a reasonable assumption. This kind of hardware has been widely used for years now, although not in phones, so it's in general well tested and understood. It may be a completely reasonable design decision to take the risk of having to support backup/erase/restore cycle in case of bugs.
Power management, mobile and firmware developer on Linux. Security developer at Aurora. Ex-biologist. mjg59 on Twitter. Content here should not be interpreted as the opinion of my employer. Also on Mastodon.
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Re: Firmware updates
Date: 2016-02-25 10:06 pm (UTC)