How do you unlock garmin nivi 650 screen?

To unlock the Garmin nüvi 650 screen, simply press the power button or tap the screen if it's in sleep mode. If the screen is locked due to a security feature, you may need to enter a PIN code that you set previously. If you’ve forgotten the PIN, you may need to reset the device, which could result in the loss of saved data. Always refer to the user manual for specific instructions related to your model.