07-08-2016 09:38 AM
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  1. AR2186's Avatar
    Thought... what if we find antenna cable/hardware for the 1520.3 and swap whats in the 1520.2 , anyone think it will give us the same reception as the 1520.3?
    There is almost no chance that the antennae used in RM-937/RM-938/RM-940 are different hardware, as it makes absolutely no sense from a purchasing or manufacturing run perspective. Its likely that the only real difference between the models (other than the QI hardware and storage space in RM-940) is all firmware/software based.

    I know NVIDIA chips have been software defined for a while, and if Apple's iPhones are any example, Qualcomm radios can be configured for a lot of bands (obviously it costs extra $/band). Chances are the mainboards are just configured for specific firmware. At one point, it seemed to be possible to flash different firmware on 920's and, I think, enable different bands
    beyondcr likes this.
    03-09-2015 02:31 PM
  2. ElronTheElder's Avatar
    I didn't want to hi-jack this beautiful thread, however, you have to "hack" (old school saying) the settings in order to make this work.
    Sent from my SM-N900T using Tapatalk
    .

    Old school "hack" is duct tape, bubblegum, wire, ...whatever it takes to overcome innate limitations.
    as in: I have used a lead pencil to create tracings on CPU's to overcome set base frequency's.
    What the OP has done is overcome the hack used to limit capabilities of this hardware.
    In effect he bypassed a hack.
    We both agree it was well done.
    ha, no smear intended or implied.
    Dr_8820 likes this.
    03-10-2015 12:30 PM
  3. len0808's Avatar
    i have a att 1520, that i'm using on tmobile, as a test, i disabled all bands except wcdma 1700 and wcdma 2100. sure enough, the 4G signal strength has more bars, and UARFCN = 2037 confirmed that it is on AWS band 4. so my final setting was to uncheck all bands except for LTE band 4 and band 17, WCDMA 1700 and 2100. Kudos to the OP. i live in chicago, even though tmobile has refarmed 4G 1900, signal is always very weak.
    beyondcr and RumoredNow like this.
    03-10-2015 11:39 PM
  4. beyondcr's Avatar
    i have a att 1520, that i'm using on tmobile, as a test, i disabled all bands except wcdma 1700 and wcdma 2100. sure enough, the 4G signal strength has more bars, and UARFCN = 2037 confirmed that it is on AWS band 4. so my final setting was to uncheck all bands except for LTE band 4 and band 17, WCDMA 1700 and 2100. Kudos to the OP. i live in chicago, even though tmobile has refarmed 4G 1900, signal is always very weak.
    I was starting to do this last night, I was not sure all bands t mobile used, was wondering if it would save battery or give better reception disabling unused bands this way the phone will only look for what it should use.
    Last edited by beyondcr; 03-11-2015 at 10:24 AM.
    03-11-2015 09:50 AM
  5. Donny James's Avatar
    This Just in. FCC grants T-Mobile, Verizon and AT&T spectrum from AWS-3 auction TmoNews

    FCC grants T-Mobile, Verizon and AT&T spectrum from AWS-3 auction

    Those of you following spectrum acquisitions and auctions will know that, towards the end of 2014, T-Mobile and a bunch of other companies took part in an AWS-3 spectrum auction. Although T-Mo was by no means the biggest of the bidders, it did secure a healthy amount of the airwaves to help strengthen its network. And, its been discovered today, that it is one of the first to be granted its spectrum by the FCC.

    Of all the 31 bidders, 11 of them have now been granted licenses. Among those were T-Mobile, AT&T and Verizon as well as Central Texas Telephone Investments, FTC Management Group, Gila River Telecommunications, Ligtel Communications, Michigan Wireless, Nsight Spectrum, Pioneer Telephone Cooperative and the Triangle Communication System.

    It doesnt take a math genius to figure out that far more are still waiting for their licenses to be approved than have had them granted so far. But perhaps the interesting story is who those are. Among them is Dish, a company which was surprisingly one of the biggest bidders during the winter auction. There are also concerns from carriers that some of the bidding was coordinated in an unfair manner to secure discounts for companies bidding as designated entity partners. As reported by Fierce Wireless:

    Northstar Wireless and SNR Wireless made $13.3 billion in gross provisional winning bids, but are seeking to pay only around $10 billion because they filed their applications as designated entities to get the FCCs 25 percent discount for designated entities and small businesses. That move has drawn strong opposition from Verizon, AT&T and T-Mobile, as well as lawmakers and Republican FCC Commissioner Ajit Pai. They claim Dish and its designated entity partners manipulated the rules of the auction and coordinated their bidding strategy.

    Turning our attention back to T-Mobile, what this means for you is that the carrier now has more 1700/2100 spectrum to roll out, although AWS-3 frequency issues mean it wont be added to the existing band 4 LTE. The spectrum covers a number of areas in North and South Carolina, Ohio, Florida, Michigan, Indiana, Illinois, Kentucky, Arizona, Tennessee, Alabama, Mississippi, West Virginia, North Dakota, Texas, Arkansas, Los Angeles, Nebraska, Missouri, South Dakota, Montana, New Mexico, Colorado, New York and Oklahoma. In fact, for a full list of markets covered by the spectrum, head on over to this FCC PDF attachment to the public notice.

    With this spectrum now secured, and the 700MHz and 1900MHz LTE networks being deployed, T-Mos network is going to get much stronger. Not just wider reaching, but faster and more reliabletoo.

    EDIT Previously assumed the AWS-3 frequencies matched the 1700/2100 network in use. Apparently, it doesnt. Ive changed the post to reflect that. 3GPP is currently working on a new band to comply with all of the FCCs requirements.
    04-10-2015 01:44 PM
  6. pdawg17's Avatar
    Does this trick work on the WP10 preview?
    04-12-2015 11:14 PM
  7. aleunge's Avatar
    Does this trick work on the WP10 preview?
    No idea. But you should do this before you update to w10. It should stick since this is at a firmware level (I.e. Firmware updates on the other hand might kill this off in the future)
    04-12-2015 11:54 PM
  8. Donny James's Avatar
    Does this trick work on the WP10 preview?
    Yes it so works.
    04-13-2015 06:33 AM
  9. sadude69's Avatar
    When I enter the field test menu and I update network type...there is no manual option. it just says automatic, 2g only, 3g only and 4g only. I don't see a way of bringing up the list of bands like in the screenshot.

    I have a RM-940 that is unlocked and it is a t-mobile SIM
    04-23-2015 11:42 AM
  10. Dr_8820's Avatar
    Are you sure that it's a RM-940?
    Sent from my Nokia Lumia 1520 using Tapatalk
    04-23-2015 11:49 AM
  11. AR2186's Avatar
    When I enter the field test menu and I update network type...there is no manual option. it just says automatic, 2g only, 3g only and 4g only. I don't see a way of bringing up the list of bands like in the screenshot.

    I have a RM-940 that is unlocked and it is a t-mobile SIM
    What firmware do you have. OS and Firmware number?
    04-23-2015 11:55 AM
  12. sadude69's Avatar
    Bizarre...I guess the SIM that came in my phone wasn't active and it changed the options. I put in my wife's sim from her 1520 and I got the manual option right away and was able to select the 1700 band just as described. I'll do some testing later on today to see if it works as intended but so far so good

    Thanks!

    It is a RM-940 and I just updated it to Denim as it was shipped to me with Black

    OS 8.10.14219.341
    Firmware 02540.00019.14484.37028
    04-23-2015 12:09 PM
  13. aleunge's Avatar
    I did this on a few 1520s and no issues each time (black and denim). But I did do it with no SIM card inserted. Not sure if that makes a difference.
    04-23-2015 03:48 PM
  14. Sean Boyle's Avatar
    When I enter the field test menu and I update network type...there is no manual option. it just says automatic, 2g only, 3g only and 4g only. I don't see a way of bringing up the list of bands like in the screenshot.

    I have a RM-940 that is unlocked and it is a t-mobile SIM
    I have the same problem, very odd. I order Lumia 1520's online and sell on Kijiji for profit. Some people want them to work on Wind mobile, so I do this trick as someone who was buying one showed me. But I had to dig a little deeper as I came across another individual who needed a Wind compatible. As I get to step 4, there is no option to change to manual! Only Automatic, 2G, 3G, and 4G. With or without the SIM card inserted - no option. Its is a RM 940 from AT&T running Cyan. The person bought the phone but is now asking for my help to get it to work - and I also need to know for future phones. Any idea why I don't have the option to switch to Manual?
    04-25-2015 01:44 PM
  15. Dr_8820's Avatar
    As sadude69 said, try switching SIM cards.

    Sent from my SM-N900T using Tapatalk
    04-26-2015 08:25 PM
  16. Sean Boyle's Avatar
    As sadude69 said, try switching SIM cards.

    Sent from my SM-N900T using Tapatalk
    Ok thanks, I figured since his SIM card wasn't activated that it would be like not having one in there.
    I forgot to mention I am running
    OS version
    8.10.14219.341
    Firmware revision #
    02540.00019.14484.37028

    I will try putting in a active sim from another network, will post results.
    04-27-2015 10:32 AM
  17. Sean Boyle's Avatar
    Also the first SIM card that I had in it was active.
    04-27-2015 10:39 AM
  18. Sean Boyle's Avatar
    As sadude69 said, try switching SIM cards.

    Sent from my SM-N900T using Tapatalk
    Tried inserting another active SIM card (Rogers), still no manual option, tried again with active WIND card, nothing still. Any ideas?
    04-27-2015 12:05 PM
  19. Dr_8820's Avatar
    Did you try without a SIM card in? I believe that someone did that and it worked....
    Sent from my Nokia Lumia 1520 using Tapatalk
    04-27-2015 08:16 PM
  20. Sean Boyle's Avatar
    Did you try without a SIM card in? I believe that someone did that and it worked....
    Sent from my Nokia Lumia 1520 using Tapatalk
    Yeah I have tried without any SIM card in multiple times. Reset (turn off/on) the phone in between. The first time I tried I had no SIM.
    04-28-2015 12:18 PM
  21. pdawg17's Avatar
    I am having the same problem. What's weird is I bought one off of craigslist in March (was manufactured in January) that was already unlocked and the manual setting was there. I dropped it the other day and shattered the screen so went to Microsoft store for a replacement (seller had bought complete care) and after unlocking it (on black and windows 8.0) there is no manual setting.

    Huge bummer...

    UPDATE: Found a post from Sean in another thread where he said that reinstalling the OS with WPRT made the "manual" setting appear and he was right - it worked! I'm all set!
    Last edited by pdawg17; 05-25-2015 at 01:44 AM.
    05-24-2015 12:45 PM
  22. Donny James's Avatar
    That's good to hear except you have to wipe your phone.
    05-26-2015 06:49 AM
  23. larrynj's Avatar
    I just switched my 1520 from AT&T to T-Mobile. Is there a way to enable wi-fi calling?
    06-28-2015 07:10 AM
  24. HoosierDaddy's Avatar
    I just switched my 1520 from AT&T to T-Mobile. Is there a way to enable wi-fi calling?
    Not until they become more of an un-carrier. They THINK they can force more people to buy their phone from T-Mobile by only providing WiFi calling for phones they sell. Yeah, I'd rather have a 640 with WiFi calling than my 1520 without it. NOT. So they are ******* off customers who would gladly buy their phone from T-Mobile IF THEY JUST OFFERED IT! LoL
    Last edited by HoosierDaddy; 06-28-2015 at 09:15 AM.
    RumoredNow and larrynj like this.
    06-28-2015 07:20 AM
  25. ScrubbyXD's Avatar
    Not until they become more of an un-carrier. They THINK they can force more people to buy their phone from T-Mobile by only providing WiFi calling for phones they sell. Yeah, I'd rather have a 640 with WiFi calling than my 1520 without it. NOT. So they are ******* off customers who would gladly buy their phone from T-Mobile IF THEY JUST OFFERED IT! LoL
    Odd, my BLU WinHD does wifi calling.

    Nope, I'm wrong...i coulda swore it did...odd
    Last edited by ScrubbyXD; 06-28-2015 at 05:22 PM.
    06-28-2015 05:06 PM
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