Micromax A28 Bolt Hard Reset or Pattern Unlock done
This tutorial tested by me without any risk, just need to remember some impotent notes for data, if you use this tutorial then remember first if you use this tutorial then you can't save data like contacts, mp3, videos, photos because this is factory reset so remember this topic because impotent this step and also check your device battery if low so you can't use this tutorial and check also volume up and down key and power because if this tutorial use then need to three keys for hard reset. You can done problem like Pattern lock, restarting problem, hang on logo, security lock from this tutorial.
Android Multi Tool download from
hereProcedure:
1. Download Android Multi tool from above link
2. Now Press and Hold Power button 3 second + Volume Down button until shown fastboot mode
3. After Connect device with micro usb
4. Open Android Multi tool
5. Choose Option "5" Wipe Data/Cache on Fastboot Mode
6. Waiting until process done
7. You are done