Xhorse VVDI Key Tool Plus All in one tool can covers VVDI2,VVD MB Tool,Key Tool Max,VVDI Prog. And for read password online can use points directly. Here is the blog about VVDI Key Tool plus read benz key nec chip with nec adapter.
Remove the NEC chip from original key.
2.Solder the NEC chip on NEC adapter.
3.Connect the adapter wtih VVDI Key Tool Plus.
4.Choose IMMO Programming, choose benz, and select from system. Read Write Key, choose “nec adapter read and write keys”
5.Choose the version