I have purchased Micromax P702 Tablet, But it's came with Android 6.0. My Application will not support Android 6.0, So i want to Downgrade my Tablet to 5.1 Android version. My tablet Build is MMX_P702_SW_V1.5_HW_V1.2, but wrongly i have installed MMX_P702_SW_V1.7_HW_V1.0. So my tablet touch is working improper way also my display not viable clearly. So please anyone help me to solve the issue.