Question: how to use ygdp tool?
Answer: Open YGDP Flashing Tool (You can open it from the Start menu or directly from the installed folder C:\YLXZGJ > YGDP > YGDP_Assembly.exe). Click on the Apply button. Now, click on the Start Button to begin the flashing. Once Flashing is completed you will be able to see green Upgrade Successful message.