Will VVDI MB BGA Tool do Mercedes-Benz W164 All Keys Lost

A test report of Xhorse VVDI MB Tool Mercedes key programmer adding keys W164 (2009-) when all key lost.
Test purpose: program/ add new keys to Mercedes-Benz W164 (2009-)
Test via technicians working for http://www.vvdishop.com/
Hardware: vvdi mercedes
Software version: ver. 2.1.6 up
W164 EIS:
w164-eis
Test procedure:
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Test result: Vvdi mb bga tool 100% adds new keys to w164. Perfect!
FAQs of VVDI MB & W164 all key lost:
Q: Why VVDI MB cant read W164 EIS OBD on table? cant start communication with EIS
A: You need gateway.
And before 09 read it whit programmer and if after 09 whit nec you can calculate password online.
Lost all keys 2 tokens.
Q: Where to get an chema of gateway with w164 EIS connected on table?
A: Please check it in Starfinder or WIS.