Reviving Macbook Air 2012

Could you halp me to revive my old Macbook?

Main problems:

1. I have no iOS on my SSD. Need to install it
2. When launching Network Recovery (using Command + Option + R) system not sees any disks. So I can't chose any disk and can't install iOS
3. When going to Disk Utility I can't erase or do any other stuff with my disks because of error "MediaKit reports not enough space on device for requested operation. : (-5344)". Which is nonsense because I just want to wipe my disk and format it
4. I google how to solve this error, but to do this I need Terminal and some utilities, which I don't have in Network Recovery mode

Oooh... Will be grateful for any advices :-)