Don't know the phone but check what options are available in ''Settings > More Networks > Mobile Networks > Network mode.'' The manual only says to "Select a network type"
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Select [https://devices.vodafone.com.au/samsung/galaxy-s5/basic-use/select-network-mode/|GSM only] and check if that resolves the problem
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In ''Settings > More Networks > Mobile Networks > Network mode >GSM only.''
Don't know the phone but check what options are available in ''Settings > More Networks > Mobile Networks > Network mode.''
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Don't know the phone but check what options are available in ''Settings > More Networks > Mobile Networks > Network mode.'' The manual only says to "Select a network type"