1- Switch of the mobile.
2- Press and hold Volume up and down button + power key until the recovery menu appears.
3- Now under recovery menu select Wipe data through volume down and to process push power button.
4- Now a menu appears select Yes- delete all user data through volume down and press power key.
5- Mobile has been reset by hard reset process.
6- Now start up the mobile and the mobile will work like a brand new one.
Micromax A45 have following features:-
. Android gingerbread OS
. 650 MHz dual core processor
. Screen size of 8.89 cm.
. Battery capacity of 1300 mAh
. Bluetooth, Wi-Fi connectivity.