[Q] help plx!!! i need help for iuni u2 topic

hi guys! im new here and i have a big problem... i live in italy (sorry for my bad english) , so i was buyed an iuni u2 one week ago, and have a big problem , doesnt recognize the sim.. i put the sim cards of all the careers here in italy and doenst work, i was cancelled the wipe data, the cache in the recovery menu, i was erase all the data factory reset from settings menu and nothing, i was sended too many mails to the eshopè and they only says me that i have to do athe things that i was did.. and doesnt resolve my problem...

so i wanna try to istall a new rom, an original android rom and try this way, but i dont find nothing about iuni u2, i need a hand guys please :crying: