OBDSTAR X300 DP Plus free updated 2019 up Nissan Sentra Sylphy B18 proximity add key, all keys lost and program HFM function in Aug. 2021. This function requires a dedicated Nissan 16+32 bypass cable.
Unplug gateway interface
Connect the Nissan bypass cable with the unplugged gateway adapter
Go to IMMO, select Nissan Infiniti v32.19 -manual select system – 28 digits pinched – Sylphy (B18) – Proximity – 2019 up – add key (No pin)
Turn on the ignition switch
Long press the start button to turn off the ignition switch
Turn on the hazard warning lights
The gear position is in P gear or neutral gear
The steering column lock is in the unlocked state
Start to read the key id
Place 1st smart key to be programming horizontally above the ignition switch and put other smart keys are far away from the ignition switch
Don’t move the key on the ignition switch
Don’t press any button of the smart key
Place 1st key above ignition switch again
Check one by one whether each smart key can be put into the car to start the car
After all keys have been verified do not exit this function, remove the dedicated Nissan bypass cable and restore the gateway module.
Connect the x300 dp plus to the vehicle and turn on the ignition switch to clear the fault code.