1. Disinto's Avatar
    Hi all,
    I bought a Lumia 1020 through my local operator (CHT Taiwan) a few months ago and I was a bit worried finding that the 4G option was nowhere to be found in the "connection speed" dropdown list.
    Turned out I was right to worry as when I picked up a prepaid LTE SIM card in Malaysia, the 4G option was still absent.

    My question is: will a flash with a ROM from another region unlock that option or will it do nothing because of a persistent operator-specific configuration file (like those found on WP7).

    Thanks !
    05-30-2014 03:50 AM
  2. multo's Avatar
    IIRC, there's a variant that doesn't support lte on a hardware level. If you have that, even if you flag an unbranded firmware then it still won't work. I could be mistaken though. Just trying to recall here the different variants of the phone
    05-30-2014 04:00 AM
  3. Disinto's Avatar
    Mmm that is correct for the RM-876 version but I have an RM-875 variant so the HW should be there. The specific variant is RM-875_apac_taiwan_951
    05-30-2014 04:06 AM
  4. Disinto's Avatar
    Some Aussie guys are experiencing the same issues because of their imported Taiwanese Lumia 1020 handset: https://www.google.com/search?output...iwan_951&btnK=
    05-30-2014 04:15 AM
  5. multo's Avatar
    It could be the network variant then that prevents it as you've thought. There is a possibility that the option for it will be unlocked if you flash with a different variant. Sorta like not all variants support the field test menu access but if you flash one that supports it then you can access it

    Sent from my Nexus 7 using Tapatalk
    05-30-2014 05:23 AM
  6. bijak_riyandi's Avatar
    have you updated your phone to the latest firmware version (Lumia Black)?
    05-30-2014 03:44 PM
  7. Disinto's Avatar
    It could be the network variant then that prevents it as you've thought. There is a possibility that the option for it will be unlocked if you flash with a different variant. Sorta like not all variants support the field test menu access but if you flash one that supports it then you can access it

    Sent from my Nexus 7 using Tapatalk
    Indeed. I'm going to flash it with a European one just after Cyan gets rolled out.

    have you updated your phone to the latest firmware version (Lumia Black)?
    Yes but the problem is due to the operator customization, not to Nokia firmwares per se.
    05-31-2014 03:38 AM
  8. JoseCortesP's Avatar
    I can confirm you that if you flash a CV / unbranded, the 4G option will be there (Just don't flash a LTA Costa Rica, since I was in the same boat as you with my RM-875). The only thing to note is that, with all the variants I've tried, I still can't get any phone call when I'm on LTE, and it's not the network since my other phone (a 920 CV) changes to 3G when a call is coming.
    07-29-2014 11:57 AM
  9. Disinto's Avatar
    Thanks.
    That must be due to the fact that CS Fallback (CSFB) may not be provisioned properly.
    Actually I got to know that 4G will be normally activated with the upcoming Cyan update. I'll update this thread accordingly.
    07-30-2014 12:37 AM
  10. Disinto's Avatar
    OK problem now resolved with the rollout of Cyan - 4G is finally enabled! Phew. I didn't need to debrand the phone.
    jfmanzo likes this.
    08-15-2014 01:47 AM

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