For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Especially in cases like this particular one that only need APFS support activated.
I know Duke (and several others in here) knows what to do. But to other people that want to play around with these files - be aware! Use the correct file for the specific machine or else you're going to waste the time which was meant to be saved
Yeah I've been doing forced-updates for years (you may have even been the one that showed me how several years back on AR forums!), but didn't have files for the 2015+ models, so only for <2014. This will help with the newer stuff, too, and also really aid in cleaning some of those pesky ME regions. Starting in 2015, they seem to be much more finicky, and even good files from one board sometimes don't work on another (I mean, no chime, nothing). Helps to have the actual file and then force-update like this; so thank you again! This is also key to fixing a lot of the iSight issues on 3435/3437 boards that get killed from cleaning ME, etc.
This reminds me of a question, actually, and you might be able to help! On boards that have a new (newest?) version of EFI update, you get an error when trying to force-update just to clean ME region, which I imagine is because you can't force an update if it detects the newest version (or same version as the one you're trying to force). You also can't force-update to an older version; usually I have to pull the chip, manually write an older version, then force update to current version again. My question is: Is there a way around this? Is there any way to force it to update regardless if the present EFI version is current? In the event of a suspected damaged ME region, etc. Would sure save time in those cases.
So for this situation, for example: 2015 A1502 with confirmed damaged ME, but also most-current firmware version; either clean ME or load from another board to allow boot, but might cause ME-related issues as expected sometimes, so need to update to "fix", just in case; load up USB with scap folder, force-update via terminal, but get error because the current version matches the one you're attempting to force-update to board. Now what? Take hours trying to find an older version that will actually work, then proceed to update (current procedure), or some terminal command that will force the update regardless of the version present? Does this make sense?
It's me! You have saved me so much time the past few years; can you send me a PM? I want to get your contact for some specific questions I've had. I just edited my previous post (page 2) to address one I've been curious about.
HA! i just came back here. Finally go the new bios to work, wiped the ssd, installed el capitan, and went through the update to high sierra... guess email notifications for post arn't working that well for me....