According to their published list, https://www.att.com/idpassets/images/support/pdf/Devices-Working-on-ATT-Network.pdf, this phone should keep working but may require a software update to do so. I'm fully updated. Should that be enough?
According to their published list, https://www.att.com/idpassets/images/support/pdf/Devices-Working-on-ATT-Network.pdf, this phone should keep working but may require a software update to do so. I'm fully updated. Should that be enough?