Just done a Dacia Duster 2018 with obdstar x300 dp plus tablet, very fast in 7 minutes.
Model: Dacia Duster 2018
Key: transponder key with 4A chip (original key and a new key)
Purpose: add a spare key
Device to use: OBDSTAR X300 DP PLUS

Connect X300 DP plus with vehicle
Select Immobilizer->DACIA->DACIA V30.73->Program Keys->Duster->2014-2018->Program keys




Function require to connect server
If there is a new key, learn the new key first

 Insert the key and turn on the ignition
 Turn off ignition

 Read VIN
 Make sure the ignition is turned off and remove the key

 Communicating
 Switch ignition on

 Program success
 Remove current key and insert next key

Follow x300dp plus prompt to program next key.
Test new keys.
Done.