How to reinstall macOS when recovery mode is unresponsive?
I pressed the Option + Command + R keys to enter the recovery mode. Then, I removed all the partitions except for the recovery partition. Initially, I was ready to restore the OS, but I saw that the restoration process would take more than 2 hours, so I turned off the computer.
After two days, I tried to turn it on again, and now pressing Option + Command + R or Command + R doesn't let me enter the recovery mode. Instead, I only see a folder with a question mark.
What should I do to enter the recovery mode and reinstall the OS?
[Re-Titled by Moderator]