An Emulator11 build (as referenced by the keyword) implies:
Emulator 11 acts as a virtual bus that intercepts calls meant for the USB port and redirects them to the dumped data file. Importing Data : Load the file captured in Step 1 into the emulator interface. Service Start feitian+rockey4+emulator11+exclusive
Based on typical discussions in reverse-engineering communities (such as Exetools or Tuts4You), An Emulator11 build (as referenced by the keyword)