I’ve been having problems with my MacBook Air (Early 2015). Since installing an update to 10.13.6 (From 10.13.3, I believe) the computer freezes once the progress bar fills up on the login screen. Rebooting has not resolved the issue. I have tried to enter safe mode and recovery mode (Command-R); the result is the same, and the computer will not transition to the recovery mode interface.
Option-command-R and Shift-option-command-R generate error messages -5101 and -2003 respectively, which don’t seem to be often cited on these forums. Similarly, a PRAM/NVRAM reset has been unhelpful.
Single user mode (Command-S) works fine, but I haven’t found any set of commands which has fixed my problem. Verbose mode is inconclusive, and the text stops updating after a minute or two, except for ‘busy timeout ‘IGPU’’ messages. I have also considered that this may be a hardware issue, but have never experienced problems with this laptop before.
Has anyone experienced something like this before or does anyone have a possible solution?
Edit: Attached are two images of the final screen before timeout messages start happening. The command line doesn’t seem entirely consistent each time I start it up: some additional messages appeared here. Unfortunately, it doesn’t let me post a video.
Note: the image at the bottom is of the latest state of the screen.
Regarding Target Disk mode, I don’t have a second computer on hand right now, but I’d be able to set that up in the near future. I don’t have an external display.)
UPDATE 2: ![enter image description here] (https://i.stack.imgur.com/04dfs.jpg)
These are logs after entering the command ‘exit’. I got IGPU messages after this; this time though, the syntax is ‘kextd stall, (240s): ‘IGPU’. Hopefully this is helpful, but from what I understand it could mean any number of things. Presumably the AppleKeyStore messages are also useful?
I now have access to another computer. Since this mode is mostly used to get files from a Mac, what specifically should I be looking out for?
As I mentioned initially, ‘Option-Command-R’ and ‘Shift-Option-Command-R’ don’t work either: I have since tried them again, and ‘Option-Command-R’ returns error message -5101 (after typing in correct internet password). ‘Shift-Option-Command-R’ boots into Internet Recovery (with the spinning globe), but then seems to go back to the login screen, which is always a dead end.
So I guess I should be looking for any fix to this which doesn’t require the login screen to take effect. I haven’t been able to find a solution allowing me to reinstall macOS and bypass recovery mode - is that possible?
EDIT: When the Mac is on, I also sporadically get the voiceover message ‘To choose English as your main language, press the ‘return’ key...’ I think this has something to do with recovery mode.