Canon PIXMA MG7700 Series Firmware Downgrader
Canon MG7700 Series Firware 1.050 Downgrader for windows
Canon Firware Update utility is not allow to downgrade firmware version.
So I modified the original 1.050 update application, It will force downgrade your MG7700 series printer firmware to 1.050 ver !
Notice ! : It will show upgrade 2.050 version, But downgrade finished then the firmware version will be 1.050.
Don't worry ! you can upgrade or downgrade anytime.