What the symptoms may tell you
No Service, SOS only and SIM errors can result from network coverage, an inactive plan, SIM or eSIM setup, software or hardware. Check whether other phones on the same network work nearby.
Safe checks to try first
- 1Confirm the mobile plan is active and check your provider's service status.
- 2Restart the phone, check Airplane Mode and inspect Cellular settings without removing an eSIM plan.
- 3Try a known-working physical SIM only if your model and provider support one.
What to avoid
Do not erase an eSIM or reset the phone without confirming how to reactivate your service and preserve your data.
Next step
Contact the network provider first for account or coverage errors. Send the model and exact message if a device fault remains.
What I can help with
Board-level radio repairs are outside this service; a diagnostic discussion can help identify the right referral.
Reviewed 3 October 2026. General guidance; diagnosis and parts depend on the exact device and its condition. This page does not confirm a booking or repair.