1. dsba's Avatar
    I have a Lumia 950 Dual SIM US which has been working great until recently when I swapped the SIM on slot 2 (from a home cut version to a nano SIM from the operator directly). As I said, I had the phone working with both SIM perfectly, I swapped SIM 2 and since then, this slot no longer recognizes any SIM card. I have tried to swap SIM between 1-2 slots, turn off slot 1, leaving empty slot 1, rebooting the phone (multiple times). In all cases both SIM cards are active and can load the line configuration on SIM slot 1 but slot 2 always reads 'Insert SIM card'...

    Has someone experienced the same? Does someone have a suggestion to resolve this?
    04-01-2016 11:19 AM
  2. ademolaV akinode's Avatar
    I have a Lumia 950 Dual SIM US which has been working great until recently when I swapped the SIM on slot 2 (from a home cut version to a nano SIM from the operator directly). As I said, I had the phone working with both SIM perfectly, I swapped SIM 2 and since then, this slot no longer recognizes any SIM card. I have tried to swap SIM between 1-2 slots, turn off slot 1, leaving empty slot 1, rebooting the phone (multiple times). In all cases both SIM cards are active and can load the line configuration on SIM slot 1 but slot 2 always reads 'Insert SIM card'...

    Has someone experienced the same? Does someone have a suggestion to resolve this?
    11-26-2017 10:59 AM
  3. ademolaV akinode's Avatar
    Hi.
    I have identical problem with my Lumina 950 xl, how were you able to resolve this?
    11-26-2017 11:00 AM
  4. RumoredNow's Avatar
    IF you are using AT&T on the "standby" slot it will not work. Standby slot is 2G only and AT&T has retired their 2G network.
    Scienceguy Labs likes this.
    11-26-2017 12:05 PM

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