How do i update the Boot ROM?

[littlestarstar]

i wanna change to ssd
but my Boot ROM is Boot ROM Version: 117.0.0.0.0
i need to MBP121.0171.B00

 

[MacManiac76]

You need to have an Apple drive installed with macOS High Sierra or later installed.

 

[DeltaMac]

If you install Catalina, the install will automatically update you to latest bootrom version, if a newer version is available.
Do you have a MBAir, or a MBPro?
The BootRom version that you listed in your opening post (MBP121.0171.B00) is for a MacBook Pro. A MacBook Air cannot update to a MacBook Pro BootRom. It's not possible to do that.

 

[littlestarstar]

i am using MacBook Air 13" 2014 early and High Sierra now
i wanna change my ssd to samsung 970 evo
is it possible to do that?

 

[iluvmacs99]

i am using MacBook Air 13" 2014 early and High Sierra now
i wanna change my ssd to samsung 970 evo
is it possible to do that?

Your bootrom is current as the newer rom only are listed as numbers with no alphabet characters. Any rom that has the alphabet characters are older and will not allow APFS booting. Your SSD will disappear once the OS install is complete. If you have High Sierra now, that means your SSD is APFS formatted and is bootable. When you upgrade to Mojave or Catalina, you may receive the newer version of the boot rom. In regards to the internal SSD. You can only change the internal SSD to the Samsung 970 EVO blade M.2 NVMe version using a special adapter to convert Apple's blade interface to M.2 NVMe form factor. You can not stick in a normal 2.5" Samsung version. It is not compatible. If you do want to upgrade to M.2 NVMe version, your boot rom needs to be 117.0.0.0.0 in which you have and you need a partition formatted via High Sierra latest build and is bootable. You can save some headache doing this manually by just buying a pre-made and pre-ready NVMe bladethat already has the converter attached for a little bit more than DIY. Amazon sells a few of them. The only downside to this setup is that, moving forward non-Apple SSD drives will NOT ALLOW further boot rom updating. Apple checks this and if it detects you are not using an Apple internal SSD drive, it will not upgrade the boot rom. Which means, every OS update, you need to take the computer apart and re-insert your original SSD, update the boot rom and security patches and then take the original SSD out, and re-insert your new SSD. Then clone the updated original Apple SSD to the new internal SSD drive.

To save this process, it is best that you upgrade with an Apple internal SSD of a larger capacity.

 

[Audit13]

A nvme drive requires an Air running a High Sierra bootrom or newer.

In order to install the os, you can use internet recovery. I've used this recovery process with 2013 to 2017 Airs with a nvme drive inside.