4/24/2025

CGDI K2 Key Tool Screen Freezes Solution

Problem:

After the most recent update, the CGDI K2 key tool device only boots up to the startup screen and then freezes, becoming unresponsive. The device has been used according to the manufacturer’s guidelines, and the problem only began following the latest update 4.0.0.

CGDI K2 Key Tool Screen Freezes 1

CGDI K2 Key Tool Screen Freezes 2

Solution:

Reflash firmware will resolve this problem.

Free download CGDI K2 reflash file:

CGDI K2 install

 

CGDI K2 Firmware Reflash Procedure:

Step 1: Open folder, Run “CGDIK2_Install.exe”, the tool will automatically start installing CGDI K2.
CGDI K2 “Device not connected 7

Step 2: Installation is complete and prompt: “Installation successfully”
CGDI K2 “Device not connected 8

 

If after opening “CGDIK2_Install.exe”, the tool prompts “Device not connected or driver not installed”

CGDI K2 “Device not connected

First check whether CGDI K2 is connected to the computer. Go to “This Computer” and check whether there is “CGDI K2”.

CGDI K2 Key Tool Screen Freezes Solution

If the device is connected properly, you need to disconnect K2 and run “DriverInstall.exe”

CGDI K2 “Device not connected solution

Click “Install” to continue with the installation

CGDI K2 “Device not connected 2

Remove the USB device first, click “Yes” to continue

CGDI K2 “Device not connected 3

Installing…

CGDI K2 “Device not connected 4

Restart the computer

CGDI K2 “Device not connected 5

The MediaTek SP Driver has been installed on the computer, click “Finish” to exit Setup

CGDI K2 “Device not connected 6

After clicking Finish, restart your computer and repeat steps 1 and 2 at the beginning of the document.