Some users reported the CGDI K2 Smart Key Tool freezing on the startup screen after updating to V4.0.0, preventing access to the home menu.
Affected Scenarios:
Boot loop/stuck on splash screen
“Device not connected or driver not installed” error during installation
Solution:
Download the firmware reflash file:
▶ CGDI K2 Firmware v4.0.0
https://mega.nz/file/KEY03DhC#I1f2t_e1nYAOjM6f4U7DlyXrI3OctqRl-1DN0h3EA4M
Follow the standard reinstallation procedure (refer to Step-by-Step Guide).
Post-flash verification: Device should boot normally without freezing.
Notes:
This method resolves both freezing and driver-related installation errors.
Ensure stable power/USB connections during the process.
Tech support:
Contact tthe echnical team if the issue persists after reflashing.
Email: sales@CGDISHOP.com
Whatsapp: +86-13995696053