In order to hard reset a Amoi 2561, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Amoi 2561 device will be brought back to the default configuration of a brand new device.
1. Power on the device.
2. Press this in sequence: *#77218114# or *#881188# or *#94267357# or *#9426*357# *#19912006# *#118811# *#3646633#
3. Wait until your phone restarts.