AudiEnthu

Hey guys, i have an Audi A3 Limousine from 2016 1.6 diesel, and i acquired a new digital cluster from the same car model, i went to try it on and when i connected it on the car everything seemed ok but when i turned the engine it turned off after a few seconds. I realized it might need re-coding, so i turned of the car, replaced the display cluster with the original one and when i turned the engine on i got all sorts of errors on screen, seems like my driving assists were disabled. I attemped using a Diagnostics machine to delete the faults but without success. I have now ordered a ross-tech hex-2 to see if i can address the issue with the vcds, could you guys point me in here?

My questions:
1. How can i remove all this errors using the original cluster and put all the driving assists functionalities back to working?
2. To enable the new used cluster on my car what does need coding? The current keys? or what?

Thanks alot for your time