@Stef7773 Hi There. It looks like you're doing everything right from what you say. I'm going to take a guess that you have noticed that the recovery screen comes on whilst phone still plugged into pc and the ubports installer still running and have thought you need to do something? If this is indeed what's happening then you should do nothing when the recovery screen presents itself on the phone, it's part of the process; just allow it to continue to completion.
PS If I don't say this someone else will : no need to post the same question in two places on the forum it doesn't make it more visible. You would be helping if you removed your other post.