A:AnswerI've used locked AT&T phones on H20 Wireless pay as you go plans, ($10/90 days) but the phones were activated with a new number. If the number is being ported in from elsewhere I'm not sure if the phone can be locked.
Like AT&T phones on AT&T service the SIM can be swapped to another AT&T phone on H20 service. Sometimes the APN settings have to be updated manually because they don't come through automatically. The H20 website will have info about the APN settings so the data will work.
A:Answerthe "Work Around" is to power off phone, remove SIM, power back on Phone, then you can work with Contacts - Add/Edit... Found answer on another Forum (5g sim used on this 4g phone)
A:AnswerIt depends on the program you use and if it allows downloads. If you can place music on a SD card and play it from your phone. -ChrisZ, AT&T Community Specialist