1. gwydionjhr's Avatar
    I have an AT&T Lumia 920 that I got unlocked over the net.

    When I do the ##7820# it shows the status as SIM unlocked.

    With my Fido SIM inserted upon boot is says Network Unavailable. Go to Settings --> Cellular --> Network Selection --> Scan for Networks, the phone "sees" Fido, Telus and Bell networks, but it will not register with them.

    ##3282# to enter the field test.
    On my 1020, in the Field Test --> LTE, Sys Mode = 4 - LTE
    On my 920, in the Field Test --> LTE, Sys Mode = Invalid

    Any thoughts on what to do to get this 920 up and running? And, I do happen to have yet another 920 around, which might be used for parts if necessary.
    Last edited by gwydionjhr; 06-19-2014 at 02:43 PM.
    06-12-2014 02:52 PM
  2. Laura Knotek's Avatar
    Have you tried the following APN settings:
    APN Settings:

    • APN: Fido-core-appl1.apn
    • If you have a LTE device, use the following setting: LTEMOBILE.APN

    MMS (Picture & Video Messaging Settings):

    How to configure an unlocked device | Get Support | Fido.ca
    06-12-2014 11:29 PM
  3. gwydionjhr's Avatar
    I tired it, no dice. I think the problem runs deeper than that.
    06-13-2014 12:52 AM
  4. James8561's Avatar
    could it be that your phone support none of the frequencies that your carrier is using/
    06-13-2014 01:11 AM
  5. gwydionjhr's Avatar
    Fido is a sub brand of Rogers here in Canada. Fido/Rogers and AT&T use the same frequencies.
    06-13-2014 08:24 AM
  6. pankaj981's Avatar
    I would suggest performing a firmware flash, that might overwrite any bad software glitches that phone currently has
    06-13-2014 09:09 AM
  7. gwydionjhr's Avatar
    Yeah, I've already tried that too. I had the same problem on the AT&T, and now the Rogers ROM.
    06-13-2014 09:18 AM
  8. pankaj981's Avatar
    This is how it looks under settings in field test mode on my Rogers 920, try to check if it's the same for you.
    Attached Thumbnails wp_ss_20140613_0002.png  
    06-13-2014 10:25 AM
  9. gwydionjhr's Avatar
    How exactly do I get to that page within the field test. I can't find it...
    06-13-2014 11:09 AM
  10. pankaj981's Avatar
    ##3282# >> ... Click at the bottom >> options
    06-13-2014 11:34 AM
  11. gwydionjhr's Avatar
    Any idea what the "Toggle ENS" does? On my 1020, like yours it is turned off. On my 920 it was turned on. I switched it off, cycled the phone, and still no love.

    I'm going to pull the antenna out of the other phone that I have, swap the two and see what happens.
    06-13-2014 12:39 PM
  12. pankaj981's Avatar
    Turn it off and reset your phone. One thing, these settings are through the firmware and a hard reset or a firmware flash doesn't sometimes revert it back to how it should be, good luck!
    06-13-2014 04:33 PM
  13. gwydionjhr's Avatar
    Finally got a chance to try swapping out the antennas. That did not fix the problem.

    I just did a full reset, and no joy their either. I think it may be pooched.
    06-19-2014 02:45 PM
  14. gwydionjhr's Avatar
    An update on this. It turns out the problem was the SIM card reader on the mother board. I purchased a replacement part from a vendor online, and took it to the local cell phone repair shop to have them use their hot air soldering iron to replace the part. I think there are something like 9 blind connections to the board on the back of the reader, so using a traditional soldering iron is pretty much out of the question.

    However, the tech made the observation that all that was most likely needed was to "refloat" the SIM solder connections, and not an outright replacement of the part.

    So, in future, if someone is having a similar issue, I'd try that first. A soldering iron with a fine point tip and apply heat to each of the connections on the SIM card that is already on the board in succession, will probably fix the issue.
    07-29-2014 02:42 PM

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