Central Download

Micromax  Bolt A26 

Hard Reset

PatternUnlock 

Press and Hold Volume Down + Power Key for 20-30 Seconds.

Now you See Fastboot Mode on screen.

Now Download Android Multi Tool

    Download fastboot driver and install Drivers

    now open tool and press "8" and enter to wipe data / factory reset.

    after format remove battery and reinsert battery.

    power on the handset.