or later Android-based versions), you can use either a dialer code for software-level resets or a hardware key combination for a full system wipe. Method 1: Reset Code (Software Level)

Locate the (usually found at the back of the device).

He'd tried everything. Soft resets. Plugging it into a charger he knew worked. He'd even whispered to the concierge button, hoping some unseen Vertu operator in Dubai could remote-reboot the thing. Silence.