How to Protect Data on a Damaged Samsung Galaxy S21

On a computer, go to your Google Account and navigate to the 'Security' tab on the left sidebar.

Scroll down to 'Your devices' and click on 'Manage all devices'. Select the damaged Samsung Galaxy S21 from the list.

Click 'Sign out' to completely revoke the device's access to your Google account and synced data.

Visit the Microsoft Account device management page, locate the Galaxy S21 under your devices, and click 'Remove device'.

Make a list of the most critical accounts linked to the phone, such as banking apps, email providers, and social media platforms.

Log into these services from a secure web browser on your computer and navigate to their respective security settings to change your passwords.

When updating your password, always check the box or select the option to 'Log out of all devices' to terminate any active sessions on the broken phone.

Rest assured that if you used a secure lock screen (like a fingerprint, PIN, or pattern), modern Android devices encrypt your data by default, making it incredibly difficult to access without the key.

Call your carrier (e.g., T-Mobile) or visit a retail location to ask about their secure device handling policies for unrepairable phones.

If the phone is being sent in for repair, include a written note explicitly requesting a full factory reset before any testing is done, should the device be successfully powered on.