Double Tap to wake feature gives you an alternative for using the unlock key to wake up your phone. You can enable it via Settings > touch and then check Double tap to wake up phone.
- Which Wireless LAN (WiFi) security standards are supported on my Lumia phone?
- How do I install a new keyboard input language in my Lumia phone?
- How do I know if an app or service is using my location info on my Lumia phone?
- Does my Lumia phone use an IP address when it accesses data networks?
- My phone does not vibrate properly