Kess V2 Install Windows 10 Verified [verified]

Go to > Advanced options > Startup Settings > Restart .

Installing K-Suite for the on Windows 10 requires a specific sequence of driver installations and system configurations to ensure the device is verified and functional Verified Installation Steps for Windows 10 Driver Preparation

Choose > Advanced options > Startup Settings > Restart . Press F7 to select "Disable driver signature enforcement."

After restart, plug KESS v2 into USB (powered via external 12V or OBD connection). Check – you should see Silicon Labs CP210x USB to UART Bridge (COMx) . No yellow exclamation mark. kess v2 install windows 10 verified

: Verified installations typically require disabling Wireless and Local Area connections during the initial setup to prevent the tool from attempting unauthorized online updates that can damage the firmware.

bcdedit /set testsigning on bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS bcdedit /set nointegritychecks on

The verified method works perfectly on both 32-bit and 64-bit versions. The key is the “Disable Driver Signature Enforcement” step, as 64-bit is stricter. Go to > Advanced options > Startup Settings > Restart

| Error | Meaning | Verified Fix | |-------|---------|---------------| | E001 | USB Driver not loaded | Repeat Phase 2; use USB 2.0 port | | E020 | Firmware mismatch | Re-flash firmware via bootloader mode | | E104 | No COM port detected | Disable internal Bluetooth/WiFi adapters |

What (e.g., 2.23, 2.47, 2.80) are you attempting to install?

: This is often cited as the highest stable version for clone units; exceeding this may risk "bricking" the device. Version 2.37 Check – you should see Silicon Labs CP210x

A GitHub project provides fixed drivers and registry patches to restore full functionality of Alientech KESSv2 devices on Windows 10/11, resolving USB detection errors, driver signature issues, and COM port problems.

The Device Manager should now refresh and display the hardware as under the Universal Serial Bus Controllers tree.

Save as kess_usb_fix.reg and merge. Reboot.

⚠️ : If you encounter a "driver signature error" (Windows requires a digitally signed driver), skip to Section 6 for the fix.

Open the folder and run KSuite.exe as an administrator.