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
Make sure the ignition is turned off and remove the key
Switch ignition on
Remove current key and insert next key
Follow x300dp plus prompt to program next key.
Test new keys.