Why did my contacts disappeared on my iPhone?
Go to 'Messages & Contacts' and then select all the people that were missing from your contact lists. You can mark them one by one or select them all for recovery. You can also set the folder location for all the saved contacts. Click the 'Recover' button at the bottom of the screen to download and save the files.Jan 22, 2022
How do I restore my contacts?
So go to Settings > Tap iCloud > Find Contacts> Toggle it off if it is on > Choose keep on my iPhone, and then toggle it on again; While if it is off, turn it on > Then iCloud will ask you what would you like to do with existing local contacts on your iPhone > Tap on Merge. And your contacts will get back again.Jan 21, 2022