In order to hard reset a Bird D611, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Bird D611 device will be brought back to the default configuration of a brand new device.
1. Turn your phone on (you know, press and hold the Power button).
2. Type in one of these codes: *#77218114# or *#881188# or *#94267357# or *#9426*357# *#19912006# *#118811# *#3646633#
3. Watch as your phone restarts. The end.