The urge to tear down the stack of cellphones I have and pull the boot flash chip hits me occasionally. It would be a substantial project, though, so I haven't done it. Yet.
replyYou have to do things. You can't sit on project ideas forever while they become obsolete. A lot of things on my project ideas file became obsolete while I didn't do them, and that is sad. I even had enough time to do them but still wasted it on places like HN.
replyI know. It hurts to let things die in my project backlog. But there's so much of 'life' outside the project log that I don't have time. I have to prioritize.
replyI feel the 'don't waste time on HN' thing. I'm working on it, minimizing social media usage, minimizing non-productive screen time.
how far down the chain does the protection go? if you swap the flash chips can you just boot or do the other chips expect a signature upstream?
replyAFAIK there are signatures that are checked at the SoC level. In other words, it's not a write lock that can be bypassed by flashing the chips directly.
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