Carrier Aggregation (CA) BAND B7+B28 - Redmi Note 8 Pro Questions & Answers

I am writing from Chile ??, here for the 4G network, the bands B7 or B28 are used, for the 4G+ or LTE-A network, Carrier Aggregation (CA) is made, which is the simultaneous connection B7+B28, it is assumed that the Redmi Note 8 Pro global, has CA, and the model has the aforementioned bands for both 4G and 4G+, but I can not make such aggregation of carriers, Xiaomi has disappointed me, which says to sell global versions, but that do not work. (REDMI NOTE 8 PRO GLOBAL, PGGMIXM, MIUI 11.0.6.0 Stable, M1906G7G

Redmi Note 8 Pro doesn't support 7+28, here is listed supported combinations: https://cacombos.com/device?model=M1906G7G

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Note 3 Verizon unlocked for India LTE bands

Hi, I am living in India and using Samsung Note 3 Verizon SM-N900V, Android 5.0. Earlier carrier was Reliance CDMA and now carrier is Reliance GSM. I am unable to use Reliance LTE bands 3, 5 & 40 as Note 3 is not enabled for Indian LTE bands. Please suggest how can I unlock it for LTE bands 3, 5 & 40

Oneplus 5t carrier aggregation support

Does one plus 5t have 2CA OR 3CA SUPPORT? GALAXY S8 IS SUPPORTING CA ON ALL THREE BANDS OF JIO 4G (BAND 3,5&40) BUT MY ONEPLUS 5T SHOWS CA OR LTE+ ONLY WHEN ON BAND 3 AND BAND 5

Note 10+ 5G

Hi All,
i want to ask if anyone know if sm-976n (Korean version) note 10+ 5g will work on any 5g network around world. i live in UAE and i have option to get SM-976N . we do have 5g network here but not sure if phone wil support or not.
thanks
i did my own researh awhile ago..
TL;DR:
N976N will work with current 5G in UAE, but around the world support is kinda fine in GCC and most of Europe, otherwise no go.
Long Answer:
N976N supports 5GNR band n78 only.
5G Bands around the world so far:
....
UAE:
n78 (also all GCC uses this 5G band)
n258 planned (NOT SUPPORTED BY N976N)
Europe:
n78 (plus some random n20,n38's)
mmWave bands details are still too early
China:
N976N will NOT work with current Chinese 5G networks
n38
n78 being built
n79
USA:
N976N will NOT work with ALL US 5G networks.
n41: Sprint
n71: Upcoming for T-Mobile
n257: T-Mobile
n260: T-Mobile, AT&T
n261: Verizon
Japan:
N976N will NOT work with ALL JP 5G networks.
n77
n79
n257
Also no phone currently supports 5G SA (Stand Alone) standard.
....
kinda shows how early 5G is at the moment...
ST-Cyclone921R said:
i did my own researh awhile ago..
TL;DR:
N976N will work with current 5G in UAE, but around the world support is kinda fine in GCC and most of Europe, otherwise no go.
Long Answer:
N976N supports 5GNR band n78 only.
5G Bands around the world so far:
....
UAE:
n78 (also all GCC uses this 5G band)
n258 planned (NOT SUPPORTED BY N976N)
Europe:
n78 (plus some random n20,n38's)
mmWave bands details are still too early
China:
N976N will NOT work with current Chinese 5G networks
n38
n78 being built
n79
USA:
N976N will NOT work with ALL US 5G networks.
n41: Sprint
n71: Upcoming for T-Mobile
n257: T-Mobile
n260: T-Mobile, AT&T
n261: Verizon
Japan:
N976N will NOT work with ALL JP 5G networks.
n77
n79
n257
Also no phone currently supports 5G SA (Stand Alone) standard.
....
kinda shows how early 5G is at the moment...
Click to expand...
Click to collapse
thank you so much for great reply and information
ST-Cyclone921R said:
i did my own researh awhile ago..
TL;DR:
N976N will work with current 5G in UAE, but around the world support is kinda fine in GCC and most of Europe, otherwise no go.
Long Answer:
N976N supports 5GNR band n78 only.
5G Bands around the world so far:
....
UAE:
n78 (also all GCC uses this 5G band)
n258 planned (NOT SUPPORTED BY N976N)
Europe:
n78 (plus some random n20,n38's)
mmWave bands details are still too early
China:
N976N will NOT work with current Chinese 5G networks
n38
n78 being built
n79
USA:
N976N will NOT work with ALL US 5G networks.
n41: Sprint
n71: Upcoming for T-Mobile
n257: T-Mobile
n260: T-Mobile, AT&T
n261: Verizon
Japan:
N976N will NOT work with ALL JP 5G networks.
n77
n79
n257
Also no phone currently supports 5G SA (Stand Alone) standard.
....
kinda shows how early 5G is at the moment...
Click to expand...
Click to collapse
hi
i have question about note 10+ 5g ftom USA or Australia , can you tell if will work in all GCC countries?
thanks
PM'd back

Chinese K30 5G in Europe (Italy)

Hi,
As for 4g phones, 5G One can be used in Europe, and in details in Italy. For 4g Chinese phone missed band 20, what is for 5g?
Thanks
I am checking that for germany right now, i see some missing. More than i have expected.
Germany will use the old UMTS frequencies in Germany for 4G / 5G.
So i am missing for 4G b8, b20, b28, b32 and for 5G n1, n28.
10min search, may be missing some.
Italy
Italy using for 4G/5G (wikipedia)
b1,b3,b7,b8,b20,b32, n78, n258
K30 Provides (chinese Website translation)
n41, n78
b1,b3,b5,b7,b8,b34,b38,b39,b40,b41
Hello , how we can unlock the band 20 ?
Is that even possible anymore?
spychodelics said:
Is that even possible anymore?
Click to expand...
Click to collapse
I hope yes, me i try to find a solution. You have european rom version on your K30 5G ?
@xedthecreative We can check all supported bands and combos from modem log. Xiaomi have nice method via CIT. I have made instruction https://mt-tech.fi/en/how-to-get-4g-supported-ca-combinations-from-your-android-phone/ (scroll down to Xiaomi -> New method section). Can you test if this work with your device?
I try build database of supported 4G & 5G Bands and Combos: https://cacombos.com/ - if you like help me to build better database, you can send logs to [email protected]
xedthecreative said:
Hi,
As for 4g phones, 5G One can be used in Europe, and in details in Italy. For 4g Chinese phone missed band 20, what is for 5g?
Thanks
Click to expand...
Click to collapse
Ciao, hai poi risolto? ANch'io l'ho comprato di recente.
It's fake that you can unlock the LTE missing bands: it's a hardware limitation.
I am using the K30 5G in Spain and it works pretty good, I almost see no difference with mobile data with my previous phone, the LG G4, and besides I am prepared to receive 5G signals in my city
If you guys finally decide to buy this phone, buy the K30 5G variants, as it also has some more 4G bands than the normal K30 4G variant.
In Spain we use B1, B3, B7, B8 and B20 4G bands, and picasso only misses the B20 band.

S20+ 5G SM-G986B/DS cannot pick up 5G signal in China

Not sure if anyone experienced this. I bought my S20+ 5G in Sweden (SM-G986B/DS). Recently I'm traveling in China and I noticed that, even there's 5G coverage and i have a sim card which support 5G and i have turned the 5G switch on. I still cannot get 5G signal on my mobile.
I did some search and my carrier is using N78 and SM-G986B/DS supports N1 (2100), N3 (1800), N5 (850), N7 (2600), N8 (900), N28 (700) N40 (2300), N77 (3700), N78 (3500)....So there should not be a problem for my mobile to pick up the signal.
However, a S20+ China/HK version (supports 5G bands N41(2500),N78(3500),N79(4500)) can pick up the 5G signal with same sim card.
So i start suspecting actually there's a lock which preventing my mobile to pick up 5G signal. I read some report that some China version of 5G mobile, such as 1+8 china version or Xiaomi 10, also cannot pick up 5g signal in Europe, even they share the same band...
And that's really getting annoying... Is there a lock? It's a hardware lock or software lock?
In Samsung phone there is Carrier Policy limit bands, features etc per carrier like other devices. I have instruction how you could check supported bands, carrier aggregation and 5G support connected-network with Samsung devices: https://mt-tech.fi/en/how-to-get-4g...ions-from-your-android-phone/#Samsung_Devices . Without modem log hard to say.
S20+ China/HK-version: https://cacombos.com/device?model=SM-G9860 works at least in China Mobile 5G-network.
Based on your observation of the carrier bands, I'd say the mobile providers in China are using using either N41(2500) or N79(4500) for 5G. Checking the list of bands used by country on Wiki, China Mobile is using n41 (and maybe n79 as well), China Telecom is using N78 and China Unicom is also using N78.
Which mobile company are you using?
Sleepycat3 said:
Based on your observation of the carrier bands, I'd say the mobile providers in China are using using either N41(2500) or N79(4500) for 5G. Checking the list of bands used by country on Wiki, China Mobile is using n41 (and maybe n79 as well), China Telecom is using N78 and China Unicom is also using N78.
Which mobile company are you using?
Click to expand...
Click to collapse
It's China Unicom and it's N78. According to the Samsung website, N78 is supported by SM-G986B as well. That's why i'm confused.
olkitu said:
In Samsung phone there is Carrier Policy limit bands, features etc per carrier like other devices. I have instruction how you could check supported bands, carrier aggregation and 5G support connected-network with Samsung devices: https://mt-tech.fi/en/how-to-get-4g...ions-from-your-android-phone/#Samsung_Devices . Without modem log hard to say.
S20+ China/HK-version: https://cacombos.com/device?model=SM-G9860 works at least in China Mobile 5G-network.
Click to expand...
Click to collapse
Thanks, will try to have a look. and it sounds like even the mobile supports the bands but it's still cannot pick up the signal because the carrier is limited?
chya83 said:
Thanks, will try to have a look. and it sounds like even the mobile supports the bands but it's still cannot pick up the signal because the carrier is limited?
Click to expand...
Click to collapse
This could be possible situation. If you like to get modem log from your device there can see if it support 5G in used network. That is only way. Here is instruction: https://mt-tech.fi/en/how-to-get-4g...tions-from-your-android-phone/#Exynos_devices .

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