Hello everyone,
Today I tried updating my macbook pro (13 inch, mid 2012) to High Sierra. But the installation failed.
I get the following message.
"An error occurred while verifying firmware"
I tried downloading a fresh copy & retry the installation but still the same error message pops up.
My hard disk is Samsung EVO 850 500GB SSD.
Thanks in advance.
MacBook Pro (13-inch Mid 2012), macOS Sierra (10.12.6), Mid 2012, 16 GB RAM, 500 GB SSD
My hard disk is Samsung EVO 850 500GB SSD.
That's the reason.
You can see for yourself: "An error occurred while verifying firmware". Apple does not develop firmware for devices they do not incorporate in the products they sell, and they do not consider internal a storage user-replaceable option. In other words you're on your own. Samsung "EVO" SSDs are notorious for that problem and others. It will fail soon enough anyway.
Either replace it with a SSD known to work with macOS, or a conventional hard disk drive. If you want to continue using the Samsung SSD, then restore your Mac from a Time Machine backup and do not upgrade.
Hey, Same problem here, on iMac 27" 2013 I7.
My MacBook pro mid 2012 A1278 is not restarting once it failed to install the High Sierra Update. What to do? It’s showing showing a message and again goes of.
My laptop is under warranty period will the guys at apple centre fix it up ?
Not if you installed a Samsung SSD (or any other, for that matter). An Apple Store will just tell you what I already did. They will refuse to service a Mac with unauthorized modifications.
I’ve made no modifications to my mac . It is the same as i boight with 500 GB hard disk that came bydefault
I have the same model as you with the same ROM and SMC. Do you have a Samsung 850 EVO SSD drive, or some other 3rd party hard drive? I'm still wondering whether or not the update is looking for an Apple HDD or SSD.
I've tried wiping the drive and installing 10.13 on an HFS formatted drive as well as an APFS formatted drive. I'm thinking the Boot ROM can't recognize APFS?
Okay, I got High Sierra to install. The problem was with the EFI partition, which was the reason for the firmware error message. This is what I did:
I booted into the recovery disk on an external drive. I **don't** honestly know if this is necessary. It may be possible to boot into the recovery disk on the main MacHD drive but I did not try it.
In the recovery area, I opened Terminal from the Utilities menu. I then entered diskutil list to see the address of my hard disk. It can also be seen in the Disk Utility; it's probably disk0. At any rate, I wanted to see the partitions on the disk which is not possible in the Disk utility. If your disk is not disk0, then you need to use the proper disk number in the following commands, if you choose to try this method.
Then, in Terminal I entered diskutil verifydisk disk0 to check the disk. Sure enough it said that there was a problem.
I then ran diskutil repairdisk disk0 and got a warning that it would probably erase a certain partition and may cause a problem booting up. The partition it referenced was the EFI partition, so I said yes. It repaired the disk, I rebooted and then (finally!!!) installed High Sierra without a problem.
I could not do this repair from the Disk Utility. It had to be done in Terminal.
I also understand that a reinstall of the current OS on your Mac will fix the EFI partition. This can be done in the Recovery Disk menu, Reinstall Mac OS. Don't bother looking for Sierra in the App Store. It's not there. But it is available by download from the Recovery Disk. I did not try this method because I didn't have the patience for one more MacOS download and install. But you're welcome to try it, of course, if that's easier for you. You would reinstall Sierra and then upgrade to High Sierra if you go this route.
I hope this helps those of you who are still having problems. Regards.
Ok, I can get to all of my data, but the trouble is the High Sierra installer.
I went ahead and attempted to run the installer after downloading it from a Sierra startup disk I made. Is said it couldn’t install/re-install on the startup disk (that’s corrupt) because it’s not formatted as macOS Extended (Journaled). It was an EVO SSD and it never finished the install but apparently got changed to APFS anyway.
If there is a was to somehow revert back without destroying the keychains, user account info and settings etc, I’d like to know.
The other option I’m going to attempt is creating a bootable HS Installer on another external SSD that I have.
The real goal would be if Apple allowed a re-install/reattempt on APFS formatted partitions/disks. And if not that, provide a way to recreate a recovery partition for a APFS drive and then move it to the corrupted disk and re install
Correct. Disk Utility will not be able to repair it. But Terminal should repair the internal SSD, as long as you are booting up from the external disk. I laid out the instructions to do so in a previous post.
OK Been into Apple - Clean install - same problem occured. Apple have taken it away and will fix as it is within first year of warranty (by about a week)
| Warranty Status: In Warranty (W) | |
| GBR | Model: MacBook Pro (Retina, 13-inch,Early 2015) |
| Date of Purchase: 17-Oct-16 | |
| Serial No: | |
Problem Description/Diagnosis
Repair Estimate
| Item Number | Description | Price | Amount Due | Customer KBB |
|---|---|---|---|---|
| 661-02351 | Flash Storage, 256GB | £ 368.00 | £ 0.00 | N |
| 661-02354 | Board, Logic, 2.7 GHz, 8GB | £ 322.00 | £ 0.00 | |
| S1490LL/A | Hardware Repair Labor | £ 69.00 | £ 0.00 | |
| VAT | £ 0.00 | |||
| Total | £ 759.00 | |||
i have the same problem on mbp late 2016 with touch bar, high sierra don’t install at all tried to do it from os, tried to do it with win+r bose way were failed. my old mbp 2013 upgraded without any problem, but new one every attemps failed with slashed circle, its very sad. I think best solution is wait untill they fix this issue:)
Installation Failed! High Sierra.
