Galaxy Note 10 Deal: BOGO at Verizon!
  1. dlalonde's Avatar
    It's a strange question and maybe I'm completely off track or if it even applies to this phone but, is there a ROM that has the most LTE bands enabled and which could allow an upgrade to WM10 without using the insider app? In other words, a ROM that is still supported by the carrier and that has the most options available for the phone?

    Thanks
    kosmiko likes this.
    04-19-2016 02:12 PM
  2. worldspy99's Avatar
    Ask Moderator pankaj981 via PM. He is probably the most knowledgeable about this kind of stuff.
    libra89, jmshub, dlalonde and 2 others like this.
    04-19-2016 02:18 PM
  3. pankaj981's Avatar
    You can flash to the following ROMs and still retain your LTE bands.

    059X227 - RM-1073 VAR LTA AR CV SKD >> This is Argentina CV
    059X153 - RM-1073 VAR LTA 7R CV >> This is Mexico CV
    04-19-2016 06:26 PM
  4. dlalonde's Avatar
    You can flash to the following ROMs and still retain your LTE bands.

    059X227 - RM-1073 VAR LTA AR CV SKD >> This is Argentina CV
    059X153 - RM-1073 VAR LTA 7R CV >> This is Mexico CV
    Thanks!

    What do they offer that's better than the T-Mobile ROM? And is there a difference between those two?
    04-19-2016 08:35 PM
  5. xandros9's Avatar
    Thanks!

    What do they offer that's better than the T-Mobile ROM? And is there a difference between those two?
    Can't answer the latter, but as for the former, they aren't tied to T-Mobile I believe and can connect direct to Microsoft for various firmware happenings.
    dlalonde and pankaj981 like this.
    04-19-2016 09:47 PM
  6. pankaj981's Avatar
    What do they offer that's better than the T-Mobile ROM? And is there a difference between those two?
    Whats better in the T-Mobile ROM?
    1) WiFi calling for T-Mobile network
    2) Band 12 LTE

    What's better in the other 2 ROMs?
    1) Direct updates from Micrsoft
    2) Unbranded, so no carrier bloatware

    You can flash anyone of those ROMs and they should work. English US is not available (other English locals are available) during OOBE setup on the Argentina ROM but you can always download the language later.
    04-19-2016 10:08 PM
  7. dlalonde's Avatar
    Awesome I'll try those (and hope my language, French Canada, is available) :)
    04-20-2016 06:05 AM
  8. dlalonde's Avatar
    Tried both and none of them had any LTE, never mind band 12, nor did they have 4G. So I'm going back to T-Mobile for now! :)

    Weren't there any unbranded unlocked Lumia 640 sold directly by Microsoft like there is a 640 XL?
    04-20-2016 08:46 AM
  9. libra89's Avatar
    Weren't there any unbranded unlocked Lumia 640 sold directly by Microsoft like there is a 640 XL?
    Nope.
    dlalonde likes this.
    04-20-2016 09:26 AM
  10. dlalonde's Avatar
    Nope.
    Alright, T-Mobile it is then!

    Thanks :)
    04-20-2016 09:29 AM
  11. dlalonde's Avatar
    Whats better in the T-Mobile ROM?
    1) WiFi calling for T-Mobile network
    2) Band 12 LTE

    What's better in the other 2 ROMs?
    1) Direct updates from Micrsoft
    2) Unbranded, so no carrier bloatware

    You can flash anyone of those ROMs and they should work. English US is not available (other English locals are available) during OOBE setup on the Argentina ROM but you can always download the language later.
    One more question please. What about firmware? I know MS will not update them and will leave those to the carriers. But given T-Mobile has pretty much abandonned the 640 (MetroPCS and the two codes you gave me have a more recent firmware than T-Mobile) will that be a problem in the long run?
    kosmiko likes this.
    04-20-2016 09:51 AM
  12. Zachary Boddy's Avatar
    One more question please. What about firmware? I know MS will not update them and will leave those to the carriers. But given T-Mobile has pretty much abandonned the 640 (MetroPCS and the two codes you gave me have a more recent firmware than T-Mobile) will that be a problem in the long run?
    It really shouldn't be an issue at all. Also, you could try contacting AT&T and finding out if they'll unlock a Lumia 640 for you as they've been known to do this. Usually they only do it for previous customers but you could try your luck at it. You could also shop around and see if you can find someone selling AT&T unlock codes that you can use with a Lumia 640. Once you've unlocked the phone you can take it anywhere but you're not going to get T-Mobile specific features unfortunately.
    dlalonde likes this.
    04-20-2016 09:58 PM
  13. dlalonde's Avatar
    It really shouldn't be an issue at all. Also, you could try contacting AT&T and finding out if they'll unlock a Lumia 640 for you as they've been known to do this. Usually they only do it for previous customers but you could try your luck at it. You could also shop around and see if you can find someone selling AT&T unlock codes that you can use with a Lumia 640. Once you've unlocked the phone you can take it anywhere but you're not going to get T-Mobile specific features unfortunately.
    Oh that's fine it's already unlocked. Thanks :)
    04-21-2016 06:05 AM
  14. Zachary Boddy's Avatar
    04-21-2016 06:22 AM
  15. jamssx's Avatar
    The T-Mobile and MetroPCS have the 'same' firmware level 15203, which is a higher version than the other RM-1073 variants. Note the last 5 digits are the variant not the level. Virtually all the others are 15184. There is virtually no bloat in the T-Mobile version unlike the ATT versions. The issue with the T-Mobile version is until they approve the fix for IMS (wifi calling and VoLTE issues) you're not getting Windows 10 without insider.
    dlalonde and libra89 like this.
    04-21-2016 10:23 AM
  16. pankaj981's Avatar
    The T-Mobile and MetroPCS have the 'same' firmware level 15203, which is a higher version than the other RM-1073 variants.
    The Argentina CV has a higher firmware version, something in 16xxx branch.

    Tried both and none of them had any LTE, never mind band 12, nor did they have 4G.
    What do you mean by no LTE? They have LTE and HSPA+
    dlalonde and RumoredNow like this.
    04-21-2016 11:19 AM
  17. dlalonde's Avatar
    The Argentina CV has a higher firmware version, something in 16xxx branch.


    What do you mean by no LTE? They have LTE and HSPA+
    The highest available speed was 4G and the fastest speed I got was 3G. I had no LTE option available and ##3282# didn't work.
    04-21-2016 11:58 AM
  18. jamssx's Avatar
    On the MS servers AR CV is 02177.00000.15184.36002 Not that it really makes much difference if you're not using wifi calling.
    04-21-2016 01:45 PM
  19. pankaj981's Avatar
    On the MS servers AR CV is 02177.00000.15184.36002 Not that it really makes much difference if you're not using wifi calling.
    You will get an OTA after that. If you need proof then I will post a screenshot if that matters.
    The highest available speed was 4G and the fastest speed I got was 3G. I had no LTE option available and ##3282# didn't work.
    You getting 4G/LTE or 3G really depends on your network and coverage. It does work on AT&T and T-Mobile's LTE bands. Field Test mode doesn't work on most of the Latin American ROMs.
    Last edited by pankaj981; 04-21-2016 at 03:58 PM.
    04-21-2016 03:40 PM
  20. dlalonde's Avatar
    You will get an OTA after that. If you need proof then I will post a screenshot if that matters.

    You getting 4G/LTE or 3G really depends on your network and coverage. It does work on AT&T and T-Mobile's LTE bands. Field Test mode doesn't work on most of the Latin American ROMs.
    That's what's strange. On T-Mobile ROM I have the option for LTE and I generally get 4G. But with those two ROMs I got 3G only and didn't have the option for LTE.
    04-21-2016 04:29 PM
  21. Mark F24's Avatar
    I am using the 059X153 LTA 7R CV ROM and my phone displays LTE on the top bar. I'm on AT&T so no wifi or band 12, I just wanted to have a plain ROM and see if I could do it. Tried the T-Mob ROM but had Redstone running with glitches so I swapped it for this one, I like it.

    It has US English as an option, it is on the spacebar of the keypad.
    04-21-2016 07:20 PM
  22. pankaj981's Avatar
    That's what's strange. On T-Mobile ROM I have the option for LTE and I generally get 4G. But with those two ROMs I got 3G only and didn't have the option for LTE.
    I just checked again in cellular + settings and I see 4G, 3G and 2G in the drop down. In if you see @Mark F24's comment, he confirms that he gets LTE too. I really cannot do more to prove this than share screenshots.


    BTW is this thread still needed?
    04-21-2016 07:38 PM
  23. dlalonde's Avatar
    I just checked again in cellular + settings and I see 4G, 3G and 2G in the drop down. In if you see @Mark F24's comment, he confirms that he gets LTE too. I really cannot do more to prove this than share screenshots.


    BTW is this thread still needed?
    Oh no I have 4G it just never connects to it, only 3G.

    Anyhow you can close this thread if you want, I feel like I've ran your patience into the ground. I appreciate your help still. Thanks for everything.
    Guytronic likes this.
    04-21-2016 07:50 PM
  24. pankaj981's Avatar
    Cool, PM me if you have any specific questions I can answer.

    Thread is being closed. Thanks everyone for chiming in.
    Guytronic likes this.
    04-21-2016 09:06 PM

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