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My device switched from LTE to 2G unexpectedly

This can happen when LTE signal deteriorates. Check coverage and review RAT preferences on the device side.

Jakub Kubinski avatar
Written by Jakub Kubinski
Updated today

Environment

  • Device: LTE radio modules with 2G fallback

Issue

  • My device switched from LTE to 2G unexpectedly

  • The device was working normally on 4G before - but now for some reason has switched to GSM 2G/3G.

Solution

  1. Check whether the device is within LTE coverage.

  2. Review RAT preferences set on the device.

Cause

This can happen when LTE signal deteriorates. Most often, the device will prefer to stay on the same network before performing a full network scan and searching for other operators that offer LTE in the area.

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