- Visit att.com/softwareupdates to verify your device has the latest software and update if needed.
- If this is a new phone or SIM card, learn how to activate a device.
- If your service is suspended, learn how to reactivate AT&T PREPAID service.
Learn how to resolve issues with making and receiving calls and texts by checking device settings, such as airplane mode, call forwarding, blocked calls, functions such as Emergency Calls Only, and operating software versions.
Try these tips to fix problems making and receiving phone calls with AT&T PREPAID℠: