Kwikset - Kevo 99250-202, Bluetooth Touch-to-Open Smart Keyless Entry Electronic Deadbolt Door Lock Featuring SmartKey Security, Satin Nickel Your phone is now your key touch to open convenience with the 2nd generation. If you wish to perform a system reset, press and hold the reset button on the back panel for 10 seconds until the lock beeps and the light ring flashes red Kevo 2nd gen works with Alexa voice commands. Remote lock access & monitoring requires Kevo Plus hub, sold separately for $99 via Kevo App 3rd Gen Kevo App provides faster and more reliable connection. Smaller and sleeker metal interior with improved install experience. Now get free ekeys; Send and manage eKey access via smartphone receive notifications and monitor lock history Compatible with iPhone 4S or higher and select Android 5.0 or higher devices Works with Fob (sold separately) or traditional key with new advanced SmartKey security Works with select iOS and Android devices (wider compatibility with updated Google Play Kevo app which determines full and partial compatibility) please check compatibility (below) before purchase Smart Home compatibility with Amazon Alexa, Ring Doorbell, Skybell, Nest Learning Thermostat, select Honeywell Thermostats, Android Wear and IFTTT Note: 1. Make sure that you have the most up to date operating system on your phone. 2. Please check the cable connection between the interior and exterior deadbolt. Tools can help , dewalt bosh, Samsung galaxy or iPhone. Gone