1. Andrei Staicu's Avatar
    Hi,

    I have a RM-978 on Denim, and two carriers, let's call them
    - O, which provides both 3G and 2G connectivity, and
    - D, which only provides 3G
    If I choose D to use for data connection, everything works fine.
    However, if I choose O to use for data connection, D shows up as "Network not found". It _might_ be that the phone switches the second sim in a 2G mode.
    Of course, I'm the second case, of wanting O as data provider

    Did anyone meet with this issue? Any suggestions?

    Thanks.
    04-12-2016 01:14 PM
  2. xandros9's Avatar
    I believe any SIM that isn't being used for data is booted down into 2G mode, even if there is no 2G.
    04-12-2016 10:39 PM
  3. skydiverian's Avatar
    However, if I choose O to use for data connection, D shows up as "Network not found". It _might_ be that the phone switches the second sim in a 2G mode.
    Standard behaviour unfortunately - all dual sim phones I've used only have 2x 2G radios and 1x 3G radio (and 1x 4G radio on LTE devices). I use three in the UK which is 3G/4G only and has no 2G coverage, so when I used my 630 and set data to the other network, the three sim can only access the 2G radio - and with no coverage on 2G, simply said there was no signal.

    Essentially this is as expected and you can't do anything about it.
    xandros9 and Andrei Staicu like this.
    04-12-2016 11:47 PM
  4. Alun Lambert's Avatar
    I have exactly the same issue with my Lumia 640 Dual SIM, if I don't select my Three network SIM (3G/4G capable) as my mobile data SIM it shows no service, my other SIM is EE (2G/3G/4G) capable and shows as available whichever SIM I select as the data SIM. I guess there is nothing that can be done without getting a phone with multiple 3G/4G radios.
    04-27-2016 06:08 AM

Similar Threads

  1. Lumia 550 Store & Video, how can I stop random crashes?
    By Windows Central Question in forum Microsoft Lumia 550
    Replies: 1
    Last Post: 04-12-2016, 01:46 PM
  2. Destiny patch brings new challenges and increased Light level cap
    By WindowsCentral.com in forum Windows Central News Discussion
    Replies: 0
    Last Post: 04-12-2016, 12:30 PM
  3. Dark Souls III is here, and we've got first impressions
    By WindowsCentral.com in forum Windows Central News Discussion
    Replies: 0
    Last Post: 04-12-2016, 12:20 PM
  4. Windows Central App adds article deep-linking to notifications and more
    By WindowsCentral.com in forum Windows Central News Discussion
    Replies: 0
    Last Post: 04-12-2016, 12:00 PM
  5. Office apps for Windows 10 Mobile add Intelligent Search and more
    By WindowsCentral.com in forum Windows Central News Discussion
    Replies: 0
    Last Post: 04-12-2016, 10:42 AM
LINK TO POST COPIED TO CLIPBOARD