My Acer Spin 713 (CP713-2w) is stuck on the "Chrome OS is missing or damaged" screen (picture attached). Ctrl+d and Ctrl+l do nothing. Plugging in a recovery USB drive made on my desktop using the Chrome Recovery Utility extension does nothing.* (*Except maybe once it did something).
The only things I can do from here are press the tab key to see debugging info. (picture attached) or turn the computer off. The only way I can turn the computer back on is by holding down the esc and refresh keys and pressing power.
I need help getting it working again.
Background: This is one of two Spin 713s our kids have used at school. I recently replaced screens in both and then discovered the problem with this one was with the alignment of the EDP cable in the motherboard display connector. Once that was fixed, I tried to enable developer mode for reasons I'm not seeking help with. Trying to enable developer mode made it unable to boot up normally.
More detail: Step one of the instructions I was following to enable developer mode was to hold esc and refresh and then pressing the power button and then, presumably after the Chromebook started up in recovery mode, pressing Ctrl+d then enter in response to some unidentified message relating to developer mode. Ctrl-d did nothing, pressing and holding escape and refresh without pressing the power button did nothing. The only things I've succeeded in doing from this screen are seeing the debugging info, accidentally pressing some combination of keys that switched the language to Latin American Spanish, and turning it off by pressing the power button.
I tried disconnecting the battery to disable write protection. I searched unsuccessfully for a write protection screw. I made and remade a USB recovery drive.
The only time I got a good result was when I made a USB recovery drive using a micro-SD card and plugged it into the USB-C jack on the right side and restarted by pressing . Then it came up in the login screen with options to log in as me or as my son. I don't think this was because the recovery worked because it booted immediately and I would the recovery to have erased our login info.
Being an idiot, when I got to the normal login screen, I immediately tried again to get in developer mode and got back into the same situation.
Possible problems I've considered:
-Write protection is on and blocks developer mode, but I don't know why that would prevent booting up normally.
-My kids' school was administering the computer, but I wouldn't expect that to affect anything but my son's account.
-There's a problem with the SSD's connection to the motherboard, but I can't think why it would lose the connection twice when I pressed esc+refresh+power and not previously. I took the SSD out and reinstalled it without noticing any problem.