Originally Posted by tolonuia
sorry. well, first i did master reset, once done i set up an apn (carrier provides you with this info), then went to mobile network > network operators > select automatically. once the device found the "CLARO" network i turned data on and got internet service.
I'm guessing you either had not entered the APN info exactly correctly the first time. Or also, after entering the APN you actually have to select it as the "active" one on the list of APNs (making sure it has the colored dot next to it). Maybe it did need a factory reset, but this shouldn't be necessary just to change APN.
Happy you got it figured out.