Micromax A69 only show Bolt and can't start.1000% working flash file with flashtool and user guide.
Download flash file from the following linkhttps://drive.google.com/drive/my-driveExtract all zip file and run cost downloader. If you have antivirus please disable it.
Multi downloader box shows then click on setting and configuration option.
Add firmware on Image path and just click on OK button
Select 1 HW INFO
Click on apply option
Click on start option and just connect mobile with usb cable.If driver needed please install driver
Now download process start whit yellow signal
Wait few minute,until you can't see OK to green signal.
Process complete and your mobile ready to use