iPhone Unable to Use Cellular Data With a New Carrier Could Not Activate Cellular Data Network

see my article:  http://smartphonematters.com/iphone-u...

Could not activate cellular data network Turn on cellular data or use Wi-Fi to access data
Profile Installation Failed One one APN configuration can be installed at a time.

Profile Installation Failed Couldn’t communicate with a helper application.

Profile Installation Failed The UUID for the profile “tracfone.vzwentp” isn not unique.

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• #iphone
• #apn
• #cellular_data