It's showed that already connected to 4G, signal is also very strong. But, just can't use internet without WiFi. The normal phone functions all are OK, I can call and SMS but just can'st use internet with Cellular.
Why is that happening? Anybody can help me?
Thanks a lot.
I got the Xphone from eBay, and found out that it's from AT&T and it's 4.2.2. Because I'm in Singapore now and using a different carrier. But, I found out that it can't connect to internet with Cellular but only can access internet with WiFi. So I update it to 4.4.2. But I still can't access to internet with cellular.