CGDI MB ~ Mercedes Benz 2011 year S350L W216 copy key with key on car

Question : Why it tip that " is the key correctly inserted into EIS twice ? please try again ! "
Answer: If you do copy key with a key, the key information will be read once at the beginning, and when 100% is collected, the key information will be read again. If the key information read twice is inconsistent, it is required to repeat the first few steps to collect again. (This purpose is to prevent the key from hopping code)

So，We just click ok ,then follow the tip do again .As the video shows

Видео CGDI MB ~ Mercedes Benz 2011 year S350L W216 copy key with key on car канала CG Official