How do I fix no service after switching a phone to Xfinity Mobile?
Answer
This usually means the Xfinity Mobile line is not fully activated or the carrier settings have not finished downloading. Activate each phone in the Xfinity app with a Primary or Manager account, then on iPhone open Settings > General > About and wait for carrier settings to update.
Before you start: stop right away if…
- Avoid a factory reset until activation and carrier-update steps are finished, because reset can remove apps and local data.
Follow these steps
Activate lines in the Xfinity app
Open the official Xfinity app, sign in with the Primary or Manager account, and complete phone activation for each line one at a time instead of starting several activations together.
You should see: Each line shows as activated or ready for service in the Xfinity account.
Confirm the SIM or eSIM is assigned
In the Xfinity app or account mobile settings, confirm the phone you are holding is the device assigned to that phone number. Restart the phone after activation finishes.
You should see: The correct device is linked to the line and the phone reboots cleanly.
Refresh carrier settings on iPhone
If the phone is an iPhone, go to Settings, then General, then About, and wait about 30 seconds. Install any Carrier Settings Update prompt if it appears, then check the status bar again.
You should see: Carrier settings update and No Service or SOS only clears, or signal bars return.
Check Android network registration if needed
If the phone is Android, turn Airplane mode on for 15 seconds, turn it off, then open network or mobile network settings and confirm the Xfinity or listed network is selected. Restart once more if calls still fail.
You should see: The phone registers on the Xfinity network and can place a test call or send a test text.
Contact Xfinity Mobile if service stays down
If activation shows complete but the phone still cannot call or text, contact Xfinity Mobile support with the phone number, device model, and whether the screen says No Service or SOS only.
You should see: Support can re-provision the line or replace a failed SIM or eSIM profile.
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Extra tips
What to look for: Status bar text such as No Service or SOS only, and whether the Xfinity app still shows the line as needing activation.
Before you change anything: Have the Xfinity Primary or Manager sign-in ready. Activate one phone at a time if several lines were moved. Keep Wi-Fi available for the Xfinity app if cellular is down. Do not factory reset until activation and carrier-update steps are finished.