I just want to share with u guys my problem because last week I bought a Umi Rome X which works amazing but the problem comes when I attempt to connect the mobile data. I have tried so many things like inserting other SIMs, changing APN, etc in order to figure something out but I cannot make it. So, I would like to get some advices to solve this problem and the meantime I attach some screenshots so you guys can see it clearer. The SIM that I'm currently using worked fine in my former mobile phone.