but only in a way that prevents it rebooting during an incremental update until you disconnect and reconnect the battery. (I'm not sure if that is the case or not.) Unless somehow something in my Mac's logic board really HAS been fried. This theory still doesn't really add up, unfortunately, if you can buy a second-hand logic board from an old Mac as a replacement and that works as a permanent fix. Any other opinions? Does this make sense? If my guess is right, then maybe the reason for replacing the logic boards is not that they are fried, but rather that they are being replaced with logic boards that support something new. but in fact this only fixes it until the next incremental update) makes sense if they aren't ever going to fix it. The fact that it isn't fixed makes me think Apple isn't ever going to fix it and the fact that they are insisting on upgrading the logic boards on these machines (when all you apparently need to do is disconnect the battery to get the machine back. I don't know if it is something to do with supporting the fast incremental update, which I believe new to Big Sur updates system files in place on the cryptographically signed system drive. ou au contenu (y compris le code) figurant sur des sites Internet tiers. I'm surprised that Apple still don't seem to have fixed the issue - even up to and including 11.2 beta 2 - especially as it didn't happen in the early betas of Big Sur. 1.39 testing-library-user-event 14.0.0-beta.13. Ii) Install using an incremental update (which is desirable because you can get updates sooner, and in principle they are much faster to install), but in this case I always have to disassemble the machine and disconnect then reconnect the battery after the first reboot, to get my machine back from the black screen state Specifically, when I try to download an app or an update from the App Store, the button to download /update for the app in question turns into the circle with a square in the center, but the >download never starts.as a distinct patch, the dynamics within each patch is structured and the. I know that clover r5123 and Big Sur are both in beta, but I was hoping someone here may have some pointers as to how to fix this. I) Always install from a *full* download and use `createinstallmedia`, because this never black-screens This approach, however, raises some issues since it is not clear at. If I've understood correctly, OC from I think 0.6.4 onwards can block whatever Apple are doing which is bricking these machines, but only if you boot through OC every time.Ī) Completely replace the Apple boatloader with OC (probably the best choice!)ī) Always boot via the Apple boatloader initially, and only start OC as a sideloader when I want to do an upgrade (which is what I am actually doing), but in that case I can then choose: Click to expand.I'm using OC to force the install through, but I have a late 2012 retina MBP - this is just before the Big Sur support cutoff, and with an updated Wi-Fi card Big Sur can run on it completely unpatched.
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