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[Q] Using an RM-875 in North America - best ROM for LTE compatibility?

OP joal_o

12th April 2014, 10:04 PM   |  #1  
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I have a Nokia Lumia 1020, product type RM-875. It is a Singapore country variant, but I know how to flash it with different RM-875 ROMs thanks to these instructions posted by anaheiim: http://forum.xda-developers.com/show....php?t=2515453.

My problem: it is not compatible with my carrier's LTE (SaskTel). I only get H or H+ in the top-left corner of the screen, and about one quarter of the download speed as other phones. The RM-877 is meant for North-American markets, as I understand; it works with the 700​/850​/1700​/1900 MHz bands, while the RM-875 works with the 2100​/1800​/2600​/900​/800 MHz bands. My carrier uses the 1700 and 2100 bands. I am wondering if the RM-875 can be made to work better with my carrier's LTE service by flashing it with a different ROM.
Last edited by joal_o; 12th April 2014 at 10:51 PM. Reason: terminology
25th April 2014, 09:07 PM   |  #2  
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What kind of speeds are you getting ?

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27th April 2014, 06:19 AM   |  #3  
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About 4 Mbps, whereas I'd be getting 10 to 12 with a phone meant for north america

Quote:
Originally Posted by roblxskye

What kind of speeds are you getting ?

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1st May 2014, 12:24 AM   |  #4  
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Quote:
Originally Posted by joal_o

I have a Nokia Lumia 1020, product type RM-875. It is a Singapore country variant, but I know how to flash it with different RM-875 ROMs thanks to these instructions posted by anaheiim: http://forum.xda-developers.com/show....php?t=2515453.

My problem: it is not compatible with my carrier's LTE (SaskTel). I only get H or H+ in the top-left corner of the screen, and about one quarter of the download speed as other phones. The RM-877 is meant for North-American markets, as I understand; it works with the 700​/850​/1700​/1900 MHz bands, while the RM-875 works with the 2100​/1800​/2600​/900​/800 MHz bands. My carrier uses the 1700 and 2100 bands. I am wondering if the RM-875 can be made to work better with my carrier's LTE service by flashing it with a different ROM.

This is not changing the ROM that you change networks frequencies.
16th May 2014, 10:00 PM   |  #5  
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##3282#
Try opening the Field Test menu, ##3282# . Try playing with settings over there. There is a 4G frequency selection section in it.

p.s. changes are lost after reboot
p.s.2 If you have RM-875, you can't flash a rom for RM-877 as fa as I know. You can flash ROMs for one RM, but for different regions, but the RM number should stay the same. RM-875 has hardware different from RM-877. Its like trying to flash a rom for GSM networks into CDMA phone. Different hardware, different ROMS. But you still could try via Nokia Care Suite.
15th June 2014, 06:21 PM   |  #6  
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I'd also like to know about this. I have the singapore variant (what the amazon seller sent me) that I am trying to use on Tmobile. I get H and H+ but the ##3282# bring up "something happened and we couldn't complete this action" every time. (On WP 8.0)
Would love to know if there is a way to get it to run even faster...or even get the amazing WiFi calling feature from samsung phones. hah. A stretch I know.
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