1. Download ROM here
  2. Extract ROM on hard drive.
  3. Download SP Flash tool here: https://spflashtool.com/download/ and extract on your hard drive (zip file).
  4. Download VCOM drivers here: https://www.mediafire.com/file/j9gzwtvwqov6z74/android_vcom_driver.zip/file . Install them.
  5. Before you use SP Flash tool, you will need to disable driver signature enforcement policy (assuming you have Windows 7 and up, not needed on XP). Manual here: https://androidfilebox.com/tips/how-to-disable-windows-driver-signature-enforcement/. Because you will do this only once, I suggest you disable them temporarily – bottom of the page.
  6. Once your PC starts with driver signature disabled, open SP Flash tool and go to “Download” tab. Select scatter file – navigate the extracted ROM until you find it (only one file will show). Leave Authentication file blank. Your screen should look like the attached screenshot.
  7. Power down CI Pad (press reset button to make sure). Press “Download” in SP Flash tool and only after that connect the CI Pad to your PC via USB.