Lock a lost phone remotely

Apple Lost Mode, Google Mark as lost and Samsung's lock controls can help protect a missing device already tied to your account.

What to do

First, check

Choose the correct device in the provider's account and read what the action will change.

Then

Activate the available lock or lost mode. Add contact details only when the device is lost rather than stolen and the platform supports it.

If it’s not that simple

Restricts access using the platform’s supported controls.

Changes line/service availability; it does not lock all phone data.

A separate destructive action with different consequences.

Erase a lost phone remotely

Good to know

Remote actions may wait for connectivity. Apple advises against adding contact details if an iPhone was stolen.

Official source