How many smartphones can be used with a single GarageDoorBuddy?

For iphone: 1. Factory reset the device. Use a pen or paper clip to hold the button inside the hole. You will hear 7 beeps followed by a longer beep.

Android: Go to the control screen of the GDB App where you see two big buttons.Tap “Settings Icon” on top right. Then tap “Firmware Upgrade”. Then tap “Firmware Upgrade” button

1. Register an IFTTT account. Login to ifttt.com 2. Go to ‘My Applets’ and click ‘New Applet’. 3. Click “+this” to select a trigger condition. Search for ‘SMS’ and add