Hey folks

Just stuck a new set of none OEM alloys on the car, bought a set of Hella TPMS. When i try to reset the tire pressure system i get to 49% and then it stops and eventually give an error. Is there something i need to do to program these new sensors to the car? Have been all over google and can't seem to find an answer. Some forums say to just do a reset through i drive, while other are saying i need a tool to program the sensors before resetting? Any advise greatly appreciated as i have an NCT due next week and really need to get this sorted ASAP