YGDP CoolPad CPB Flash Tool Collection
Here, on this page we have managed to share the latest and oldest version of YGDP Tool.

YGDP Tool allows you to flash stock or custom firmware on your Android Device in CPB Format only. Simply Install the YGDP utility on your computer, the launch it. After launching you will be asked to enter password, enter 369 as the password.
Then after load the CPB Firmware on YGDP utility and connect your device to the computer. Once firmware is fuly loaded, click on Start to begin flashing the firmware.
Flash PreResource File
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 thenafter under Please select PreResource file, locate the IMG file that you want to flash on your device and Click on Start to begin flashing.
Config Control
It also allows you to check the device name, check eMMC CID, check fuse info, check instruments info (but this feature is only available for Qualcomm Chipset devices).
YGDP Tool
YGDP Flash Tool Setup V2.13
YGDP Flash Tool Setup V3.31
YGDP Flash Tool Setup V3.97
YGDP Flash Tool Setup V3.98
YGDP Flash Tool Setup V4.01
YGDP Flash Tool Setup V4.03
YGDP Flash Tool Setup V5.00
The default password for the YGDP is 369 or 9527.
You will need this password to launch the final Tool.