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FDD-LTE: International Standard?

Question:
Are the FDD-LTE bands universal?
Let's say a certain country lists their FDD-LTE bands as something like:
900/1800/2100
And the phone lists their bands as:
800/850/1700/1800/1900/2100
It should work because there is overlap right? As long as one frequency is the same, it should work?
This is such a basic question I should have been able to find it, but my searches were fruitless. (maybe because they are universal and my question is pointless?)
(I will ask questions about CDMA/GSM in another thread so as to uncomplicate the issue)
Background (you can skip reading this if you want):
My question arises for the simple reason that I travel pretty regularly between the US, Japan and sometimes other countries in Asia (and in February I'm going to Turkey) and I want to buy an unlocked phone that works pretty much anywhere. I am phone shopping and decided on the Asus Zenfone 2 ZE551ML 64GB (Amazon has a sale on this phone for under $300). It looks like it has all the 3G/4G bands for all the countries I want to visit. But Japan is.... weird when it comes to these sort of things (This is the country that invented DVD regions for Christssakes.). They always seem to do something to make their technology a little different to isolate their market (and rake in more cash). On the Asustek site it lists the LTE bands as:
2G :
EDGE/GSM :
850/900/1800/1900,
3G :W-CDMA 800(6)/850(5)/900(8)/1900(2) /2100(1)MHz
4G :
FDD-LTE: (JP version)
2100MHz(1)/1900MHz(2)/1800MHz(3)/1700/2100MHz(4)/850MHz(5)/800MHz(6)/900MHz(8)/1700MHz(9)/800MHz(18)/800MHz(19)/700MHz(28)
Notice how they put "(JP version)" in front of the frequency list? Does that mean the Japanese version of the phone? or do they have a "special" FDD-LTE network in Japan?
It is very important to me that the phone works in Japan as I spend most of my time here.
Thank you in advance, I have always received great responses to my questions here.

I think they mean the Japanese version of the phone. See if you can find specs of other regional versions of this phone (US, or EU).
The LTE band numbers are universal, FDD-LTE + a frequency is not necessarily universal.
Here's a list of the defined bands and technical parameters of each one:
https://en.wikipedia.org/wiki/E-UTRA#Frequency_bands_and_channel_bandwidths
Here's a list of the LTE bands used in each country. Japan uses quite a lot bands: 1, 3/9, 11, 8, 21, 26/18/19/5, 28.
https://en.wikipedia.org/wiki/List_of_LTE_networks

Frequency bands on Chinese Vs European OP8

Hi team,
It seems OnePlus is showing different frequencies on the 5G band for phones sold in China (IN2010) and Europe (IN2013).
IN2010: Bands 41, 78 & 79
IN2013: Bands 1, 3, 7, 28, 78.
Does anyone who if a Chinese phone originally intended for IN2010 bands are flashed the international ROM IN21BA, are the other bands accessible in Europe . Other bands being, 1,3,7,28 ect.
Or is there a hardware lock?

It's technically programmed into NVRAM, but the publicly found version of QPST doesn't support this device, so I don't know of a way to modify the bands.

1,3,7,28 and 20 are 4g LTE bands in France, so Europe. It's not 5g bands
These bands are presents on the IN2010 model too

craznazn said:
It's technically programmed into NVRAM, but the publicly found version of QPST doesn't support this device, so I don't know of a way to modify the bands.
Click to expand...
Click to collapse
Shame, when Europe starts using band 28 on 5G, the Chinese imported phone won't support this band then.

Also i recommend compare 4G and 5G Combinations between China and Europe variant:
China: https://cacombos.com/device?model=IN2010
Europe: https://cacombos.com/device?model=IN2013

Hello.
Would be Interested in this topic as well...?.
Actupsp ...are you sure ?

samco08 said:
Hello.
Would be Interested in this topic as well...?.
Actupsp ...are you sure ?
Click to expand...
Click to collapse
In France B28 used for 4G LTE for now but i think they will transfer it to 5G like other countries. That will be low band 5G for many countries to build coverage.

Question 5G bands in the SM-G996W

Hello,
I am looking to buy an unlocked S21+ from Samsung Canada store (SM-G996W) and I checked here :
S21+ Differences that the following 5G bands: n2, n41, n66, n71 are the ones supported by the Candian model so my question is:
Is it possible to change the supported bands? For example, if I travel to a country where the used 5G band is the n28, will the S21+ support this band. If so, how please?
Btw, I have seen some users changing Network bands on Samsung devices without root so I want to make sure that it works with the 5G bands especially from someone who have a S21+ please?
Here is the link of the short tutorial: Un/Locking LTE Bands on Samsung I am talking about.
Thanks for your help

Farouk_50 said:
Hello,
I am looking to buy an unlocked S21+ from Samsung Canada store (SM-G996W) and I checked here :
S21+ Differences that the following 5G bands: n2, n41, n66, n71 are the ones supported by the Candian model so my question is:
Is it possible to change the supported bands? For example, if I travel to a country where the used 5G band is the n28, will the S21+ support this band. If so, how please?
Btw, I have seen some users changing Network bands on Samsung devices without root so I want to make sure that it works with the 5G bands especially from someone who have a S21+ please?
Here is the link of the short tutorial: Un/Locking LTE Bands on Samsung I am talking about.
Thanks for your help
Click to expand...
Click to collapse
AFAIK this 5G bands are hardware related, not software related. So no "unlocking" in this case.

SM-A426B in Europe versus SM-A4260 in Asia (Hong-Kong): 5G reception problem

I bought a Samsung A42 5G from Rakuten. It is a 8Gb RAM version, model SM-A4260.
I live in France, and I use Prixtel MVO with the Orange network (3500Mhz antenna for 5G already open where I live).
5G is not working, even if the model I use has the good 5G bands:
Network: 5G: n1/n3/n5/n7/n8/n28/n40/n41/n78/n79 / (France is using n3, n28 and n78 right now).
Is it possible that it does not work because it is not the SM-A426B european model ? Software volontary limitation ?
4G LTE bands work perfectly...
Any idea to solve my problem ?

fanzizou33 said:
I bought a Samsung A42 5G from Rakuten. It is a 8Gb RAM version, model SM-A4260.
I live in France, and I use Prixtel MVO with the Orange network (3500Mhz antenna for 5G already open where I live).
5G is not working, even if the model I use has the good 5G bands:
Network: 5G: n1/n3/n5/n7/n8/n28/n40/n41/n78/n79 / (France is using n3, n28 and n78 right now).
Is it possible that it does not work because it is not the SM-A426B european model ? Software volontary limitation ?
4G LTE bands work perfectly...
Any idea to solve my problem ?
Click to expand...
Click to collapse
Do you think it is possible to flash the official international ROM of the SM-A426B on this Asian SM-A4260 version ?
The hardware seems the same...

Question US version works in India?

Thinking of importing the Pixel 7 Pro from the US to India since India doesn't have a 256GB or 512GB version.
Will I be able to use dual sim in India with VoLTE?
And will I get 5G to work in India?
Please help!

No

superspartan said:
No
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Click to collapse
So VoLTE and 5G won't work and neither will dual sim?
Will installing the Indian ROM work?

According to youtube link, it may work but u need to buy unlock phone only and it should be bought with full payment with no emis
And regarding warranty only Google support would answer best.
5g update will be included in December with feature update

The model sold in India is GP4BC, and the one in the US is GE2AE. The main difference is the radio bands, but I believe it should work fine.
For example, the GP4BC model supports LTE band 32, but GE2AE does not. However, from what I see, LTE band 32 isn't used in India. In any case, carriers support multiple LTE bands, so you should be fine for LTE coverage with the US model GE2AE.
For 5G, GP4BC supports two additional sub-6 bands (75 & 76). From what I see online, these 5G sub-6 bands aren't used by any carriers in India as well, so 5G sub-6 should also work fine if you buy the US GE2AE model.

craigacgomez said:
The model sold in India is GP4BC, and the one in the US is GE2AE. The main difference is the radio bands, but I believe it should work fine.
For example, the GP4BC model supports LTE band 32, but GE2AE does not. However, from what I see, LTE band 32 isn't used in India. In any case, carriers support multiple LTA bands, so you should be fine for LTE coverage with the US model GE2AE.
For 5G, GP4BC supports two additional sub-6 bands (75 & 76). From what I see online, these 5G sub-6 bands aren't used by any carriers in India as well, so 5G sub-6 should also work fine if you buy the US GE2AE model.
Click to expand...
Click to collapse
Thanks a lot for the detailed workup. Giving my friend the go ahead to get it for me then.