- May 13, 2019
hey, does anybody now if the First Developer Version of 10.15 ships with some Boot Rom Updates?
not really, 2012 MBP originally have spinning HD, replace with aftermarket SSD and bootroom automatically updated to during Macosx Catalina install.I think it happens when your laptop originally had a SATA SSD and upgrade to an NVME, but only Apple know what kind of criteria they put on the hardware to be within "bootrom upgradable".
not really, 2012 MBP originally have spinning HD, replace with aftermarket SSD and bootroom automatically updated to during Macosx Catalina install.
I think I phrased myself a bit unclear, what I meant was that the issue manifests when you have SATA and tries to use the NVME as boot device. Meaning when you change communication protocol Apple don't update. This is generally a good approach as this will ensure that the laptop keeps running, and is not forced a potential bricking rom update. If you have modded your bootrom this will also avoid Apples upgrade. The problem is of course if the bootrom is updated with some new security features or bug fixes, then you will miss out on those. Though for laptops which shipped with SATA SSD but had support for NVME, although with buggy EFI modules, any fixes will not be applied if Apple make them. On the other hand, for those there are custom way to mod your bootrom which add better EFI NVME drivers, and if you apply them you would rather not have Apple "update" the bootrom if they have not fixed the problematic EFI driver.not really, 2012 MBP originally have spinning HD, replace with aftermarket SSD and bootroom automatically updated to during Macosx Catalina install.
10.15 DP3 EFI Version table for non BridgeOS Macs:
Almost all Catalina supported Macs had firmware upgrades, most got two versions over.
Mac: EFI version: MBP11,1 18.104.22.168.0 MBP11,2 22.214.171.124.0
Some BootROMs are made for more than one Mac, yours probably use the same one as MBP11,1 or MBP11,2.Apple forgot the 11,3 machine type in a list ?
Some BootROMs are made for more than one Mac, yours probably use the same one as MBP11,1 or MBP11,2.
I don’t know about your problem with install to an external drive, but the next step is to install in your main/internal disk and see if it works.