I have a 4010 code. IPhone could not be restored. An unknown error occured
I've tried updating, restarting, connecting to iTunes and restarting in DFU. I still was unsuccessful in restoring the iphone. What do I do next
See this Apple article: If you see an error when you update or restore your iPhone, iPad, or iPod
If you see an error when you update or restore your iPhone, iPad, or iPod - Apple Support (SG)
Additional:
Turn your iPhone on and unlock it -> enter the passcode.
Go to Settings -> set Auto-Lock to Never.
Check Service.
Check the Wi-Fi connection.
Turn Off Hotspot.
Turn Off or remove VPN if necessary.
Disable all AV & Firewalls temporarily while you restore your iPhone.