• https://support.apple.com/en-us/102605
• Press Power button
• Charger light should go green then orange

• Control + Option + Shift

• https://support.apple.com/en-us/102539

• Command + Option + P + R

• Command + Option + R (release P after NVRAM reset restart)

• https://www.youtube.com/watch?v=ouNQS36dIBw
• https://mrmacintosh.com/how-to-fix-the-recovery-server-could-not-be-contacted-error-high-sierra-recovery-is-still-online-but-broken/
• Time can probably be set in same Terminal after IASUCatalogURL

• Select Language
• Utilities → Terminal → sntp -S -S time.apple.com
• Exit Terminal → Reinstall macOS → Continue
• Recovery server could not be contacted (leave notification open) → Window → Install Log → Search failed to load → swscan.apple.com URL
• Select log (only one) → Edit → Copy
• Ok “not contactable” notification → Utilities → Terminal
• Edit → Paste
• Mouse-select catalog URL from https: to .sucatalog → Edit → Copy
• Type beginning of below → Paste → change pasted URL from https to http (check with nvram -p)
• Exit Terminal

nvram IASUCatalogURL="http://swscan.apple.com/content/catalogs/others/index-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog"

• Disk Utility → Select drive → Erase → Mac OS Extended (Journaled) → Done → Exit
• Reinstall macOS → Agree → Install to drive