If you’re encountering the “Error SilentKey” message while attempting to program the Renault Master 2020 SID310 ECU with the ECUHELP KT200II, follow the steps below to resolve the issue.
KT200II Renault Master 2020 SID310 "Error SilentKey"

Step-by-Step Solution:
Understanding the Error:
When the “Error SilentKey” message appears, it indicates a problem with the current programming method.

Correct Programming Method:
The correct way to program the SID310 ECU with the KT200II is boot mode. Ensure you perform an OBD search for the password before proceeding.
ECUHELP Kt200II write sid310 boot mode ECUHELP Kt200II connect sid310 boot mode

Watch the Tutorial Video:
For a detailed visual guide, please watch the video on how to read SID310 in boot mode using ECUHELP KT200II.

Conclusion:
Following the correct procedure of reading/writing in boot mode and performing an OBD search for the password beforehand, you can successfully program the Renault Master 2020 SID310 ECU with the KT200II. This method ensures a smooth and error-free programming experience.