iPhone remains traceable on Find My even when the lost device is powered off
Did you enable Find My network? See the pic below
If yes, read below how it may get located.
The Find My network is an encrypted, anonymous network of hundreds of millions of Apple devices that can help you locate your device.
From the above, I infer that when another device comes near your powered-off device the GPS/Bluetooth from both devices will form a network and your device's location info will be displayed to you on your device only. As long as both devices are/have...
- Find My Network is enabled
- iPhone 11, 12, 13, 14 and above
- With iOS 15 and above versions