Original Mercedes NEC Key renew procedure:
NEC chip sits on adapter. After renew, key is ready to write with new rom file.
Another feature is “digging” password – easy with vvdi tools as you can see.
Renew NEC Key with VVDI MB
Go to Read and Write Key function
Select NEC Adapter
Identify key information
Try this VVDI MB NEC adapter. This works always in minutes.
For example like this:
Renew NEC key with Key Tool Plus:
Renew original nec key procedure with keytool plus is similar as vvdi mb tool.
Key tool plus has it own NEC adapters.
Immo programming->Benz-> Select from system-> Read Write Key-> NEC Adapter read and write key