Alright, I’ll try do meticulously check if there is any difference between the two first 6 sectors of each card, but I don’t really understand what is the real process of cloning if it copies only some of the data and not all of it ?
Regarding the last suggestion, I’m managing a student residence and my ultimate goal is to be able to provide card duplicates to tenants without having to deal with a local locksmith that will charge them 30€ each. So ultimately, buying a Proxmark3 would be feasible on business expanse, but only if I can somehow be sure before buying that it will work it because I’ll have to justify in the end.
Also as promised, here is the taginfo of the home clone that works: ** TagInfo scan (version 4.24.7) 2021-08-17 15:17:49 **Report Type: External - Pastebin.com