08-01-2014 05:30 PM
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  1. WPhoney's Avatar
    Things about the 521 from MetroPCS that I want confirmed by an owner:

    1. Does the phone need to be unlocked to work on T-Mobile?
    2. Does the phone need to be unlocked to work on any of the T-Mobile's MVNOs?
    3. Will MetroPCS unlock its 521 after 90 days of use on their network (like T-Mobile does)?
    4. Who's responsible for pushing updates to the phone? MetroPCS (the seller) or T-Mobile?
    5. Is MetroPCS shipping these 521s with GDR2 already built-in? If not, has the update being pushed?
    08-25-2013 07:14 AM
  2. alexloe's Avatar
    Things about the 521 from MetroPCS that I want confirmed by an owner:

    1. Does the phone need to be unlocked to work on T-Mobile?
    2. Does the phone need to be unlocked to work on any of the T-Mobile's MVNOs?
    3. Will MetroPCS unlock its 521 after 90 days of use on their network (like T-Mobile does)?
    4. Who's responsible for pushing updates to the phone? MetroPCS (the seller) or T-Mobile?
    5. Is MetroPCS shipping these 521s with GDR2 already built-in? If not, has the update being pushed?
    1. Yes, I explained that already in detail. None of the other SIMs contain GID1 value 6D on SIM field 7FFF 6F3E
    2. Yes, see above.
    3. Please ask MetroPCS and post it here.
    4. See above.
    5. GDR 2 should be shipped from beginning. Update is already available.
    08-25-2013 10:50 AM
  3. WPhoney's Avatar
    1. Yes, I explained that already in detail. None of the other SIMs contain GID1 value 6D on SIM field 7FFF 6F3E
    I read your original post and understood it. However, I'm looking for confirmation by someone who owns the device and actually tried different SIMs in it. By the way, assuming those hex values do indeed lock the phone to MetroPCS, would it be possible to change them?
    08-25-2013 11:09 AM
  4. alexloe's Avatar
    That would have been too easy. The configuration settings are signed. Even if you would manage to change the values in this like FAT12 partition by JTAG your phone would not boot anymore.
    08-25-2013 12:30 PM
  5. alexloe's Avatar
    But you can use every MetroPCS SIM card in any locked T-Mobile US Lumia phone.
    These phones are locked only to the network and allow the following IMSI ranges:

    310160
    310200
    310210
    310220
    310230
    310240
    310250
    310260
    310270
    310310
    310300
    310490
    310660
    310530
    310580
    310590
    310640
    310800

    GID1 value isn't check by these phones.
    08-25-2013 12:36 PM
  6. Corepc's Avatar
    Just download the MetroPCS Firmware files RM-917 Product Code 059T039
    Thanks was wondering if Product Code would be different than T-Mobile version.
    Will add Product Code to Software & Firmware release and will check on it has well when I check for 521 updates.
    That probably means that you cannot flash a metro-pcs version with a T-Mobile firmware/rom not without some tricky at least.
    08-26-2013 10:19 PM
  7. mogelijk's Avatar
    Shouldn't you then be able to flash the T-Mobile Firmware files to a MetroPCS phone to "unlock" it, or is there something I'm forgetting?
    08-26-2013 10:31 PM
  8. AlexRodriguezNY's Avatar
    Shouldn't you then be able to flash the T-Mobile Firmware files to a MetroPCS phone to "unlock" it, or is there something I'm forgetting?
    Flashing another software/rom to your phone doesn't unlock it.
    08-29-2013 05:16 AM
  9. Smashfacemonster's Avatar
    Umm I just switched from T-mobile to MetroPCS because Tmobile kept messing up my bill. Anyway I have both the 928 and the 521 and MetroPCS had the software, SIM card and codes ready as I walked through the door. And as of 12/18/2013 I've always gotten a customer support person's help with small issues with my 521.
    12-19-2013 12:30 PM
  10. Geethika Koneru's Avatar
    the thing is i am using straight talk sim in a unlocked phone upto now.....and i wanna order lumia 521 metro pcs and will use the same sim card in that phone.. will that work?? or should i need to change my sim card to metro pcs or t-mobile??
    08-01-2014 05:30 PM
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