It allows you to flash CPB format Stock ROMs (Firmware) only.
Simply install YGDP utility on your computer, then launch it. After launching you will be asked to asked to enter password, enter 369 as password.
Then after, load the CBP Stock ROM (Firmware) on YGDP utility and connect your device to the computer. Once firmware is fully loaded, click on start to beging flashing.
It allows you to flash the PreResource file (img) on your Android Device. To flash the PreResource file, Open YGDP and Click on the Config then after under Please select PreResource file, locate the IMG file that you want to flash on your device and Click on Start to beging flashing.
It also allows you to check name, check eMMc CID, check fuse info, check instruments info (but this feature is only available for Qualcomm Chipset devices).
=>> Learn how to flash Stock ROMs (Firmware’s) in .CBP format Using YGDP Tool From here