PCMTuner will read and wirte HYUNDAI VELOSTER MED17.9.8 ECU/ECM with module 71.
Read full flash and eeprom with module 71. Users can read and write generally on bench mode for cloning.
You should do bench ok in 71, but if bench mode not working try read password and do 53. (PCMtuner Module 53 BSL)
Some users copied one of these for obd.
PCMTuner Hyundai VELOSTER MED17.9.8 Pinout
Was able to read and write MED17.9.8 Full, on bench module 71.
But after 2020 security on processor changed, you cannot do bench anymore.