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COMMON DEVICE ISSUE · NOT AN ERROR CODE

Samsung Galaxy Watch shows no network during calls

Check whether the watch uses Bluetooth or LTE/eSIM and verify the corresponding connection.

✓ Manufacturer source✓ Safe checks✓ Verification and escalation
Samsung · Smartwatch11 November 2026 · source checked
UNDERSTAND THE ISSUE

What might cause this?

Similar symptoms can have different causes across models and software versions. These are possibilities, not a diagnosis.

Possible causes

  • The watch may have lost its Bluetooth phone connection.
  • An LTE model may lack an activated plan or eSIM.
  • Mobile network coverage may be weak.
  • Watch software may have a temporary connection issue.
Open official manufacturer document ↗
SAFE CHECKS IN ORDER

What can you try?

Try these safe, user-level checks in order; do not open the device. Menu labels may differ by version.

  1. 01

    Step 1

    Check whether the exact watch model is Bluetooth-only or supports LTE/eSIM.

  2. 02

    Step 2

    For a Bluetooth model, keep the phone nearby and verify Galaxy Wearable connection.

  3. 03

    Step 3

    For an LTE model, check the activated mobile plan with the carrier and watch network status.

  4. 04

    Step 4

    Restart the phone and watch, then test calls in an area with good coverage.

  5. 05

    Step 5

    If calls still fail, follow Samsung’s model-specific LTE and Bluetooth connection support guidance.

CHECK THE RESULT

How can you confirm the fix?

Calls work for the watch’s connection type and the network warning disappears.

WHEN TO SEEK PROFESSIONAL HELP

When should you contact service?

Contact your carrier and Samsung if an active LTE plan still shows no service.

⚠ Stop using a device if it overheats, shows liquid damage, smells burnt or has a swollen battery.

POTENTIAL COST

Will a repair cost money?

Settings, cables and user checks may require no repair. Hardware costs depend on the exact model, warranty and service diagnosis; no fixed price is promised.

FREQUENT QUESTIONS

Quick answers

Could these checks affect warranty?

Use only external checks recommended for end users by the manufacturer. Opening batteries, electronics or sealed parts can create safety and warranty risks.

What if the steps do not help?

Write down your model, software version and test results. Share those details with official support rather than repeating potentially unsafe actions.

Official manufacturer source

How was this sourced?

Model scope: Bluetooth-only Galaxy Watch models cannot make independent cellular calls; LTE capability is model-dependent.

This is an original summary of the manufacturer support document; use the official page for current, model-specific instructions.

Open official manufacturer document ↗

Features and model coverage vary. Compare the source with your exact model.