![]() ![]() Restore image to 2GB or greater USB Flash drive (formatted Master Boot Record and FAT) or burn image to DVD using Apple Disk Utility.Verify what OWC SSD generation and firmware you are using by following the guidance in the link above.Be sure you have a backup of ALL critical data.Fully compatible with iMacs that have been upgraded through OWC's iMac upgrade service.Fully compatible with machines utilizing OWC Data Doubler.OWC SSD (compatible with all OWC Mercury and Aura models).2GB or greater USB Flash Drive or Blank CD/DVD disc.If your OWC SSD Firmware revision contains xxxABBF0, then 603ABBF0 is the most up-to-date revision, current as of March 30, 2015. If your OWC SSD Firmware revision contains xxxA12F0 or xxxA13F0, then xxx365A12F0 or xxx365A13F0 is the most up-to-date revision, current as of October 20, 2011. Instructions to verify your drive generation and firmware version. While OWC has updated several drives with no data loss, we strongly recommended backing up all data on the SSD before performing this update. Anytime a drive is being updated, upgraded or moved, there is a potential for data loss. Your data must exist in multiple locations to be qualified as having a backup. It is always highly recommended that you backup your data. Please read all instructions below carefully before proceeding for information that may affect your specific computer. The current OWC SSD Firmware updater is available on a pre-configured, ready to boot, 4GB OWC Flash Drive for just $5.99 (Includes OWC Data Doubler connected drives) Note: drive must be connected to native SATA port inside the computer. Select your preferred country / region: Experience local shipping options and optimized product inventory for your region.ĭownload the OWC SSD Firmware *Not including 960GB models.Equally, there would be a lot more noise if this was a very widespread issue, so all we can say for now is that it appears to be a serious problem affecting a limited number of Macs, with no obvious pattern emerging as yet. It’s clear from the number of reports that this is affecting a number of machines. They directly programmed EFI with special tool, and it works now. I went to official local service and they said that “it’s just too old…” So I get to unofficial service but with normal guys, and they tested all the hardware and it works great, but didn’t wake up with this motherboard. The Extensible Firmware Interface (EFI) was designed by Intel to replace the Open Firmware used on PowerPC Macs. Some of those reporting the issue are on a beta, while others are on the official release.Ī number of posts point to corruption of the EFI firmware as the likely cause. Everything points to be a BIOS-EFI firmware corruption by the Catalina installer. No keys are recognized by the device and 5 minutes after turning it on the flashing question mark folder. It happened to my 2014 MacBook Air and I have two other friends with MacBook Pro 2015 that have the same issue. I can’t imagine that, after all, the iMac has been running smoothly since 2014. After the Genius, like me, had done all the shortcuts, he said it might be the logic board. This is a serious problem that Apple need to address. No combination of boot up keystrokes work. I am now left with a laptop that flashes the “?folder” icon after a couple of minutes. I followed the update instructions from “Settings - software update” as one would normally do. My computer was perfectly fine until I attempted to install Catalina. He said it was a hardware problem not caused by the update. I had a call with Apple support last night. It seems the update must have corrupted the firmware on the logic board since it no longer recognizes key combos. All I get is the “folder?” logo or nothing at all if I try “option” or “command R” on boot up. There are multiple threads on Apple’s support forums (below), with most reports appearing similar in nature. ![]() There are forum reports of the update to macOS Catalina resulting in some Macs becoming non-responsive, with some indication that an update to the EFI firmware may be responsible… ![]()
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