My device is XT 1092, stock ROM. I bought it unlocked within my country, but the recently offered LTE services in my country support only band 40. So, is there some way I can flash some other modem/radios which have band 40 enabled?
tyus2 said:
My device is XT 1092, stock ROM. I bought it unlocked within my country, but the recently offered LTE services in my country support only band 40. So, is there some way I can flash some other modem/radios which have band 40 enabled?
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Impossible. Physically it does not have band 40 capabilities. However there is one moto x 2014 model which does have band 40, the XT1085 which is from China. It is the only one that can connect to band 40 lte.
Enviado desde mi XT1095 mediante Tapatalk
As for the title, does the Mi 5 LTE+ is using interband CA or intraband CA in stock ROM/any custom ROM?
Since my country carrier is using band 3 and band 7 LTE mostly, and my current carrier claim that they using interband CA (although it's still LTE CAT 4, so the max bandwidth they do support is 20 Mhz) so my Mi 5 can't use their LTE-A hmmm
sss2sssss said:
As for the title, does the Mi 5 LTE+ is using interband CA or intraband CA in stock ROM/any custom ROM?
Since my country carrier is using band 3 and band 7 LTE mostly, and my current carrier claim that they using interband CA (although it's still LTE CAT 4, so the max bandwidth they do support is 20 Mhz) so my Mi 5 can't use their LTE-A hmmm
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Hi, what's the difference between them? Also in my country there's the aggregation of b3 and b7 and with my mi5 I have never had 4g plus..
Skull_Devil said:
Hi, what's the difference between them? Also in my country there's the aggregation of b3 and b7 and with my mi5 I have never had 4g plus..
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Interband is B3+B7
Intraband is B3+B3 or B7+B7
However after I research awhile and found that Mi 5 does can support Interband CA since just now I read from Taiwan forum, both Taiwan Chunghwa Telecom and Japan NTT Docomo can use their CA in Mi 5 as the attachment shown below
And both operators are using Interband CA, their config is show below:
NTT Docomo: CA_3A_19A, CA_1A_21A, CA_1A_19A_21A, CA_1A_3A_19A and more
Chunghwa Telecom: CA_3A_8A, CA_3A_7A_8A
And as for what I search, B7 have poor signal distribution, as for my operator I'm most seeing the B3 but B7 is really seldom come out
sss2sssss said:
Interband is B3+B7
Intraband is B3+B3 or B7+B7
However after I research awhile and found that Mi 5 does can support Interband CA since just now I read from Taiwan forum, both Taiwan Chunghwa Telecom and Japan NTT Docomo can use their CA in Mi 5 as the attachment shown below
And both operators are using Interband CA, their config is show below:
NTT Docomo: CA_3A_19A, CA_1A_21A, CA_1A_19A_21A, CA_1A_3A_19A and more
Chunghwa Telecom: CA_3A_8A, CA_3A_7A_8A
And as for what I search, B7 have poor signal distribution, as for my operator I'm most seeing the B3 but B7 is really seldom come out
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I can assure you that b3+b7 doesn't work with mi5. I tried really hard to find out a solution but I never succeeded.
http://en.miui.com/thread-360460-1-1.html
This is a post in miui forum where other people had the same problem.. I also chatted with all the dev team trying to figure out something.. Is there something problematic with that and I don't know what it is.. (b7+TDD frequency bands works)
Skull_Devil said:
I can assure you that b3+b7 doesn't work with mi5. I tried really hard to find out a solution but I never succeeded.
http://en.miui.com/thread-360460-1-1.html
This is a post in miui forum where other people had the same problem.. I also chatted with all the dev team trying to figure out something.. Is there something problematic with that and I don't know what it is.. (b3+TDD frequency bands works)
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But then with the Taiwan Chunghwa Telecom, their band is all FDD band, why in some post they reply it still can detect LTE+?
sss2sssss said:
But then with the Taiwan Chunghwa Telecom, their band is all FDD band, why in some post they reply it still can detect LTE+?
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I honestly don't know, during my searches someone said to me that the problem is the kind of the spectrum (continous or discontinous). Don't ask me what does it mean cause I don't know.. Maybe this is nothing but that's the only answer that I found.. I tried with 3 different phones and I got the 4g plus, with mi5 no 4g plus. I tried all roms (china, global, third part roms) no 4g plus.. Just with b3+b38
Skull_Devil said:
I honestly don't know, during my searches someone said to me that the problem is the kind of the spectrum (continous or discontinous). Don't ask me what does it mean cause I don't know.. Maybe this is bull**** but that's the only answer that i found.. I tried with 3 different phones and i got the 4g plus, with mi5 no 4g plus. I tried all roms (china, global, third part roms) no 4g plus.. Just with b3+b38
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Just now I'm also found that the spectrum distribute by my current carrier is also kind of hairwire, inside the house they are almost all B3 while when go to outside the house hey are almost all B7
This is kind of weird, and according to some forum they tell that my current carrier is really doesn't display 4G+ in major phone as they using 10MHz+10MHz (CAT4) which results some phone may just detect it as 4G signal
sss2sssss said:
Just now I'm also found that the spectrum distribute by my current carrier is also kind of hairwire, inside the house they are almost all B3 while when go to outside the house hey are almost all B7
This is kind of weird, and according to some forum they tell that my current carrier is really doesn't display 4G+ in major phone as they using 10MHz+10MHz (CAT4) which results some phone may just detect it as 4G signal
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No way, that's not possible cause I checked with lte bands and I also checked the band used and I know for sure how much Mhz my carriers use in my country and that conclusion is not possible. I also have proofs that mi5 has no problem in detecting 4g plus as the sum of more bands with photos of lte bands logs.. I think that this problem is underrated and I found just few people to talk about it
I got some news, A friend of mine said to me that intraband is the sum of near frequencies (such as b7 and b38), this kind of aggregation is possible in every condition. The interband aggregation (such as b3 and b7) needs a chip called companion that helps to sum the download of distant bands (b3 and b7). Probably the mi5 does not have this kind of chip and so the only possible CA is the one with near frequencies.. I also tested it and it works. I don't know how to confirm this anyway but it makes a lot of sense.
I was curious if it was possible to enable frequences not officially supported on the Mi 9. I did a quick search and found quite a bit of enabling additional bands on other phones( lg, samsung, moto) but see nothing for xiaomi and more specifically mi 9. I was hoping to enable band 71 600mhz for T-mobile USA. Has anyone attempted to turn on other LTE bands and was sucessful? Thanks!
https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
https://www.androidauthority.com/activate-4g-lte-868847/
https://www.**************/how-to-enable-all-disabled-lg-g4-lte-4g-hsdpa-bands/
sushi143 said:
I was curious if it was possible to enable frequences not officially supported on the Mi 9. I did a quick search and found quite a bit of enabling additional bands on other phones( lg, samsung, moto) but see nothing for xiaomi and more specifically mi 9. I was hoping to enable band 71 600mhz for T-mobile USA. Has anyone attempted to turn on other LTE bands and was sucessful? Thanks!
https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
https://www.androidauthority.com/activate-4g-lte-868847/
https://www.**************/how-to-enable-all-disabled-lg-g4-lte-4g-hsdpa-bands/
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i dont think u can enable other bands because global an chinese model dont have the same modem
Mi 9 uses SD855 and the difference in just between the locked and unlocked band! i have a Chinese Mi 9 and i could successfully unlock CA on B3 badB7 but it was unstable in changing between H+ and 4G+
https://forum.xda-developers.com/Mi-9/how-to/enable-4g-4-5g-carrier-aggregation-mi9-t3977213
Someone can confirm to me what frequency bands the redmi note 9 (m2003j15ss) supports? My carrier on my country, technically, works on some bands of LTE B7 (2600MHz), B3 (1800MHz) and B28 (700MHz APT). I read that the redmi note 9 supports those bands, so why I'm not getting any lte signal? Someone having this kind of problem too?
Hi guys, I have the cn version of Xiaomi Mi 11 Ultra and I enabled 5g preferred in the settings, my friend with an iPhone gets better speeds than me, and we both use a sim from the same company, do you happen to know why he gets Carrier aggregation and I don't? I am also using Xiaomi EU stable custom rom, and it is very annoying that my phone is working slower, much help will be appreciated thank you very much!
The China model has these 5G bands:
5G ：n1 / n3 / n28 / n41 / n77 / n78 / n79
Compare these bands with iPhone bands, maybe iPhone has more.
Band support is not everything, good compare Carrier Aggregation and Dual Connectivity combinations and check device support all used by your network.
You can check these via https://cacombos.com website.