1. Windows Central Question's Avatar
    I have Lumia 640 LTE. It was working normally then suddenly appears like I don't have signal when I check the SIM I found that the phone works with 3g and 4g but is not working with 2g.
    So I can use data and calls by Whatsapp, Line etc... but I can't make a regular calls.

    Somebody can help with this
    01-30-2016 09:29 AM
  2. Chintan Gohel's Avatar
    I have Lumia 640 LTE. It was working normally then suddenly appears like I don't have signal when I check the SIM I found that the phone works with 3g and 4g but is not working with 2g.
    So I can use data and calls by Whatsapp, Line etc... but I can't make a regular calls.

    Somebody can help with this
    remove the SIM and put it back in (while phone is off)
    Or get a replacement SIM which shouldn't cost much
    Mesbah likes this.
    02-01-2016 06:37 AM

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