what does -2003F error mean?

I have just had the exact same issue, i had a problem with a critical update failing and getting into a boot loop, CMD-R to check with first aid, disk ok, had to do a reinstall on top of current build, failed with a software update, luckily had a time machine backup, so blatted the macbook to reinstall, got internet recovery error the same as above with code -2006F

Now what REALLY frustrates me is that i had the same issue last week, went to genius bar, they did a factory image install, bit only to Sierra as they didn't have High Sierra image available!!

Told to go home and update to High Sierra and the same again, Macbook Pro 13 with Touchbar 2016.

Not happy!

it is shown on macbook screen.how to solve it.i was tried holding option and after pressing key i. but it didn't work.

SOLUTION

I had the same issue. You just have to keep trying to restart in recovery until the error goes away. This happened to me because I restarted the computer after wiping the drive.

I cannot find a definitive description for the error, but it is an Internet Recovery error of some kind. Be sure you have disconnected all external peripherals except the Apple mouse.

I would attempt to boot from your Recovery HD. Using network recovery should only be attempted if you don't have a Recovery HD:

Boot to the Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the arrow button below the icon.

What is it you are attempting to do and why?

Try this:

Resetting your Mac's PRAM and NVRAM

Intel-based Macs: Resetting the System Management Controller (SMC)

Reinstall Lion, Mountain Lion, or Mavericks without erasing drive

Boot to the Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

Repair

When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.

Reinstall Mountain Lion or Mavericks

OS X Mavericks- Reinstall OS X

OS X Mountain Lion- Reinstall OS X

OS X Lion- Reinstall Mac OS X

Note: You will need an active Internet connection. I suggest using Ethernet

if possible because it is three times faster than wireless.