Android Phones to Auto-Restart After 3 Days of Inactivity

If you're concerned about someone gaining unauthorized access to your Android device, Google is rolling out a new security feature that forces the phone to restart after 72 hours of inactivity — and will then require the device passcode to unlock.

With the latest update to Google Play Services, a feature has been introduced that automatically reboots Android phones and tablets if they remain unused for three consecutive days. Once rebooted, the device enters a secure “Before First Unlock” (BFU) state, disabling biometric login methods like fingerprint or face unlock, and requiring the original passcode to gain access.

Initially, Google stated this setting would be enabled by default, but later clarified in its changelog that the feature will be optional and must be manually turned on.

It's important to note that this feature:

• Applies only to Android phones and tablets (not to smart TVs, watches, or other devices).

• Does not reset your phone to factory settings — it simply enhances security by locking the device until the passcode is entered.

This feature is part of Google Play Services version 25.14, which is expected to roll out in the coming week or so. Google hasn't confirmed exactly which devices will support it.

Interestingly, Apple has quietly introduced a similar feature in iOS 18.1 called "Auto Reboot on Inactivity." This update has caused stored iPhones under forensic investigation to restart automatically, making it harder for law enforcement agencies to extract data.