Samsung is now rolling out a new feature called Maintenance mode globally. This service allows users to block phone data while their phone is serviced.
The Maintenance mode comes in the Galaxy S21 and S22 series running the just-released One UI 5. The company will continue this feature to more Galaxy devices until 2023.
You can check whether your device has eligible to receive this feature or not; you can check Settings > Battery and device care. Once the user activates the Maintenance mode and reboots the device, all personal information will be inaccessible to the person working on repairing your phone.
While the smartphone is being on Maintenance mode, as well as the apps downloaded from the Galaxy Store will be automatically deleted when you exit it. If you want to recover the phone system, the user needs to authenticate using your fingerprint; then, the phone reboots into normal mode as if nothing ever happened.
This sounds pretty great to us; you just need to ensure your local repair shop doesn’t have a blanket policy of hard resetting devices before they come in (and/or before they go back out to customers).