So, I bought a Huawei Mediapad X2 to replace the Honor X2 that I'm selling. Basically, they are the exact same phones, only with different branding. However, when I put my AT&T sim card in the Mediapad X2, the APN that the phone sets up is called ATT Broadband. When the sim card is in the Honor X2, the APN that is set up is called ATT Phone. Now, using the Honor X2, I get full phone functionality plus SMS/MMS using Google Messenger. However, when using the Mediapad X2, I get phone functionality with only partial texting functionality. I can text back and forth between one person with no issue. But, group texts fail every time, however. Also, I can't send an image in a text at all using the Mediapad X2. I've added APNs based on internet searches, but still get the same results. Does anyone know what might be going on? Is AT&T thinking that my MX2 is just a tablet? If that were the case, would any texting functions be working at all? Any help would be appreciated. Thank you.