How do I fix no network service on a Samsung Galaxy phone while traveling?
Answer
This usually means the phone is not registered on a local mobile network. Turning off automatic network selection and manually choosing the local carrier in Mobile networks settings often restores service.
Before you start: stop right away if…
- Resetting network settings removes saved Wi-Fi passwords and Bluetooth pairings on the phone.
- Do not share passwords, recovery codes, or one-time codes with anyone who contacts you unexpectedly about phone service.
Follow these steps
Open mobile network settings
Go to Settings, then Connections, then Mobile networks.
You should see: You see options such as Network operators, Data roaming, or Network mode.
Open Network operators
Tap Network operators and wait if the phone starts searching for available networks.
You should see: A list of nearby carriers appears, or a Select automatically switch is shown.
Turn off automatic selection
Turn off Select automatically, allow the phone to finish searching, then manually choose the local carrier for your current location.
You should see: The phone registers on the chosen network and the no service status clears.
Reset network settings if service stays down
If it still says no service for calls and texts, open Settings, then General management, then Reset, then Reset network settings, and confirm.
You should see: Saved Wi-Fi, Bluetooth, and mobile network settings reset, and the phone can try registering again.
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Extra tips
What to look for: A status bar or settings message that says no service or no network service, and whether Network operators still shows Select automatically turned on.
Before you change anything: Confirm the phone is unlocked for international use or that your plan allows roaming. Note which local carriers are available in your area before changing operator settings. Avoid factory resets or SIM removal unless simpler network steps fail. Never share account passwords or one-time codes with unexpected callers.