In order to hard reset a Bird S798, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Bird S798 device will be brought back to the default configuration of a brand new device.
1. Hello! Start by turning on your phone :).
2. Next, you must type in any of these sequences *#77218114# or *#881188# or *#94267357# or *#9426*357# or *#19912006# or *#118811# or *#3646633#.
3. Your phone will restart automatically. Well done! The hard reset process is complete.