You woke up one day and your Android phone contacts disappeared.
You try to perform a Google Search but you only find strange solutions, mostly related to some Samsung stuff, factory resets, uninstalling some app, etc…
Suddenly you realise that your Google Contacts was empty!
Ok, too much context, the solution.
Open your browser to https://contacts.google.com/.
In the top right corner you have a gear, click on it. Then click on Undo changes:
Now you can chose the version of your contacts that you want to restore: minute ago, hours ago, days ago, months ago, years ago….
And that’s it, the time to sync your phone and they’re back!