Micromax Bolt A66 flash done screenshot

Micromax Bolt A66 Flash done with flash tool

This flash file tested by me without any error working well,  you can use this flash file when your device hang on logo problem, restarting problem, security lock problem, password lock problem, pattern lock problem etc software related problem and you can use this tutorial without any box and this is free for all who know about software in mobile, impotent for flashing first must check your micro usb cable if not good then you can't flash it so check micro usb cable second check your device battery that is impotent for flashing if your device battery low so stop your device between flash so this is impotent for flash, before you flash save your data like contact, photos, videos etc because this is factory flash file so you can't save after full flash so must remember all are impotent notes.

Download link

Micromax Bolt A66 Firmware download here

Required for flash:

1. Micromax Bolt A66 phone with battery charged

2. Micromax Bolt Tested Firmware or tool

3. Micro usb cable

4. Computer or Laptop

Procedure:

1. Download tested firmware or tool from above link

2. Extract it into desktop or as you like path

3. Open Micromax_A66_44_V20_20140212_USR folder

4. Open SPD Upgrade Tool v2.9.8004 folder

5. Open ResearchDownload download tool

6. Click on Firmware button (button like setting)

7. Now Click on Start Downloading button (button like Play)

8. Press and Hold Volume Up and insert usb cable

9. Wait until full flash

10. You are done

Micromax Bolt A66 flash done screenshot: