Hello Simone,
After submitting the registration form it could take some time for processing, but when you have your credentials, https://partnernet.datalogic.com/home/index/sf brings to the " PARTNER ADVANTAGE PROGRAM" home page, where on the top you can already find a first “Search” tool. If you specify “skorpio x3 firmware” in the search field, you should get a list of all the available skorpio x3 firmware.
Otherwise you can directly use the already provided link to the latest SKORPIO_X3_CE6.0_ver_2.30 firmware version.
If your account registration problems persist, I suggest you open a support request at https://www.datalogic.com/ita/contatti/supporto-tecnico-cts-8.html, where one of our technicians can help you
Simone Callegari
L3 - Mobile Products Specialist SW Engineer | Datalogic