sounds to me like the new prl might be affecting who's towers you are roaming on, or now not roaming on for that matter. I didnt think that data was related, as I thought you could only use data on your own carriers towers. Maybe someone smarter than me will have more input. Also, prls are 2 way, you can always downgrade and see if that fixes it. (it will be a manual downgrade, search on the forum here for more info as to where to get the older prl and how to put it on, if you arent familiar.)
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