[Q] Has anyone successfully accessed LTE from a different country's XT925? - RAZR HD Q&A, Help & Troubleshooting

Someone in a related thread posed the suggestion that there are different hardware chips for different region XT925s. Has anyone successfully changed from one LTE region to another and have LTE still work? IE Canada <> Brazil <> Australia <> France etc.

theoretically this phone supports about 6 or 7 different LTE bands and it uses the bands according to the firmware that is installed, for example if you are running the rogers/fido, you will be able to get those LTE bands at&t included I tested this myself. If you are going to another country then you can flash that specific firmware and you should be able to get that country's LTE go to the firmwares thread in development.

Related

[Q] LTE in US with retail Australia xt925

so based on the specs posted on moto's Australian website, this phone does not support at&t US LTE frequencies.
Is this a software limitation or hardware? Would flashing a different firmware get it to work?

[Q] LTE Bands for Canadian Version (SM-G920W8)

I was wondering if anyone has had any luck with definitively determining which network bands are offered on the SM-G920W8. I have done a lot of searching today, and everything I seem to read online about this is conflicting. Is there a source out there with this information that someone thinks might be correct?
I am mostly just wondering if my phone will be able to access European networks while traveling.
A related question - if I key in *#2263#, select Band Selection>LTE, I get a listing of LTE bands. Are all of these active on my phone?
I can post screenshots if it helps.

can I*burn ROM image to a device with different LTE band configuration?

Dear all:
As you know, many phones has different sub-type that designed to support different LTE band of varioius geographical regions. As an example, the phone I use has three different variant of dual-SIM phone that differ only in different LTE band supported (Moto X Pure): Chinese variant, Latin America variant, Southeast Asian variant. Aside from different LTE band supported, everything else (hardware wise) is identical.
Can I simply burn Latin American variant ROM (which is also a dual-SIM) to a Chinese phone, assuming that despite differences in LTE band supported, the radio hardware is the same thus the radio*ROM is interchangable.
I hope my question make sense. thanks in advance.
Harv

Changing LTE bands

I purchased a Honor View 10 from Alibaba a couple months back with the international build (BKL-L09 8.0.0.131 C636) installed on it. I however live in Canada and the LTE bands installed in this version don't work in Canada. I just saw they finally released the View 10 a couple of days ago in the US and the band's will on the US version will have the LTE bands that will also work in Canada. My question is what is the US model of the View 10 and is it possible to unlock the other LTE bands?
das_raj said:
I purchased a Honor View 10 from Alibaba a couple months back with the international build (BKL-L09 8.0.0.131 C636) installed on it. I however live in Canada and the LTE bands installed in this version don't work in Canada. I just saw they finally released the View 10 a couple of days ago in the US and the band's will on the US version will have the LTE bands that will also work in Canada. My question is what is the US model of the View 10 and is it possible to unlock the other LTE bands?
Click to expand...
Click to collapse
I think you need rebrand your device to a US variant
I emailed Funky Huawei and they said rebranding will not change LTE bands. Unless of course they are wrong...
really? It's bad news for me. I have Chinese version view 10 already.
das_raj said:
I emailed Funky Huawei and they said rebranding will not change LTE bands. Unless of course they are wrong...
Click to expand...
Click to collapse
I was hoping it will be possible to switch bands with rebranding, I have US version and I'm in Europe
Rebranding will not change LTE bands!
A phone's bands are physical. Just take a look at one of jerryrigeverything's phone teardown videos and try to spot a long wire(s) going around the inside of the device.
nasty007 said:
I was hoping it will be possible to switch bands with rebranding, I have US version and I'm in Europe
Click to expand...
Click to collapse
That's funny..I have the Europe version and I'm in usa
Actually the LTE bands can be unlocked but not via rebranding but changing (or updating) the kernel. The bands are only locked to a specific region via software which is related to the kernel of the device. Rebranding only helps with receiving updates for a certain region but you gotta change the kernel.
qtoo941 said:
Actually the LTE bands can be unlocked but not via rebranding but changing (or updating) the kernel. The bands are only locked to a specific region via software which is related to the kernel of the device. Rebranding only helps with receiving updates for a certain region but you gotta change the kernel.
Click to expand...
Click to collapse
I wonder if you can flash a l04 kernel in a l09.
qtoo941 said:
Actually the LTE bands can be unlocked but not via rebranding but changing (or updating) the kernel. The bands are only locked to a specific region via software which is related to the kernel of the device. Rebranding only helps with receiving updates for a certain region but you gotta change the kernel.
Click to expand...
Click to collapse
I really don't know if it would be just something in kernel, but until EU version isn't on 8.1 we cant test or propperly compare kernel source.
We know Kirin 970 is capable for all frequency, because P20 is out only as one version for all markets,or at least for EU/US
Maybe with this way it is possible to rebrand from US to EU and get LTE bands
https://forum.xda-developers.com/p1...brand-rebrand-update-guide-t3691013?nocache=1
nasty007 said:
I was hoping it will be possible to switch bands with rebranding, I have US version and I'm in Europe
Click to expand...
Click to collapse
Could you do the other way round?
das_raj said:
I purchased a Honor View 10 from Alibaba a couple months back with the international build (BKL-L09 8.0.0.131 C636) installed on it. I however live in Canada and the LTE bands installed in this version don't work in Canada. I just saw they finally released the View 10 a couple of days ago in the US and the band's will on the US version will have the LTE bands that will also work in Canada. My question is what is the US model of the View 10 and is it possible to unlock the other LTE bands?
Click to expand...
Click to collapse
Did you solve the problem? I am in the same situation but with a P20 Lite
Actually.. You don't need the kernel
It's in the modem.. That's what dictates what bands your radio received.
It's that easy on Samsung.. It's that way here.
Wee used to flash different modems from different regions on the same model.
Trying to figure out a way for a universal flashing technique in these phones as most of them are the same with only the region lock and recovery check.
Since most of these phones contain the same modem, that's what needs to be done.
Trying to see if I can switch identifier in modems.. If I can fool the checks into thinking one modem is the same region for another
I have an Honor View 10 (global) that isn't working on the LTE bands in the US either. Is it possible to use the North American firmware and flash the global phone? Would that gain access to the LTE bands? Thanks.
geoff67 said:
I have an Honor View 10 (global) that isn't working on the LTE bands in the US either. Is it possible to use the North American firmware and flash the global phone? Would that gain access to the LTE bands? Thanks.
Click to expand...
Click to collapse
It picks up lte 4g on band 5
But shows 4g. Lte is working fine. Do a down load speed test you get lte
I'm on the att towers
I have the India bkl l09 c675
Lte works fine
geoff67 said:
I have an Honor View 10 (global) that isn't working on the LTE bands in the US either. Is it possible to use the North American firmware and flash the global phone? Would that gain access to the LTE bands? Thanks.
Click to expand...
Click to collapse
I have a US Verson of V10 and not working LTE with some carries in Brazil... Works only on band 3, but here, the carries use 3, 7 and 28. Can you want to change your phone with me ? Rs [email protected]
So, did we figure out how to change bands on View 10 ?
I'm in Canada and using Rogers network. My device is bought from India BKL-L09
I have set the region to Canada
The LTE is working and showing
My problem is that the download speed is horrible (will never exceed 8 mbps).
I've switched my SIM in other devices and I'm getting up to 100mbps.
Any advice?

Modem,Radio,Baseband. Carrier tuned? Firmware - Samsung

I live in Australia and I know there's carrier firmware for Samsung phones Optus, Telstra, Vodaphone, and just XSA for Australia I would like to know if Optus, Telstra, Vodaphone specifically tune there modem files they provide in there firmware, so using Optus firmware with Optus sim card provides a better reception, battery life network speeds, then say using XSA with a modem that's for all Australia and no specific network intended.
I've also read someone suggesting sometimes carriers don't update there modem files they just stick with one that they found to work throughout a phones lifetime, uncertain how true untrue this statement was.
Thanks.
Alister. said:
I live in Australia and I know there's carrier firmware for Samsung phones Optus, Telstra, Vodaphone, and just XSA for Australia I would like to know if Optus, Telstra, Vodaphone specifically tune there modem files they provide in there firmware, so using Optus firmware with Optus sim card provides a better reception, battery life network speeds, then say using XSA with a modem that's for all Australia and no specific network intended.
I've also read someone suggesting sometimes carriers don't update there modem files they just stick with one that they found to work throughout a phones lifetime, uncertain how true untrue this statement was.
Thanks.
Click to expand...
Click to collapse
Different carriers use different network/radio bands, the modem in their firmware is designed to work with the bands that their network supports. That is why a modem from one carrier's firmware won't work with another carrier's network if they support different radio bands. The XSA firmware uses bands that they all support, they just might not be the optimal bands supported by the various carriers, the "generic" bands instead of the "best" bands for "this" network or "that" network, it will work on those other networks, it just won't be as efficient as using the modem that comes in that carrier's firmware.
In other words, the modem in the XSA firmware might work on the Telstra network, it just won't work as well as the modem that comes in Telstra's firmware.
As for the question about whether a carrier updates their modem or not, depends on the network or the devices they offer. Usually, modems aren't updated unless improvements are made to the network itself that require the modem to be updated.
Sent from my LGL84VL using Tapatalk
Droidriven said:
Different carriers use different network/radio bands, the modem in their firmware is designed to work with the bands that their network supports. That is why a modem from one carrier's firmware won't work with another carrier's network if they support different radio bands. The XSA firmware uses bands that they all support, they just might not be the optimal bands supported by the various carriers, the "generic" bands instead of the "best" bands for "this" network or "that" network, it will work on those other networks, it just won't be as efficient as using the modem that comes in that carrier's firmware.
In other words, the modem in the XSA firmware might work on the Telstra network, it just won't work as well as the modem that comes in Telstra's firmware.
As for the question about whether a carrier updates their modem or not, depends on the network or the devices they offer. Usually, modems aren't updated unless improvements are made to the network itself that require the modem to be updated.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
Yes i have extracted the modem file and flashed it before say Telstra and then got reception while using a Optus sim card, so your definitely sure in this case of Telstra, Vodaphone, and Optus providing modems optimised for there networks which XSA doesn't have?
The reason i ask is if that's true then i want to download, multiple firmwares for Optus for example extract the modem file from each, work out which one out of probably several Optus has released provides the best, reception, battery life, 4G data speeds is most reliable, i just hope it's not we assume XSA and telsta, vodaphone and optus are all different when in fact they are all the same.
Of course when it's LG vs Xiaomi or Oppo ect then definitely either the manufacture provided the modem files, or a carrier did if they market sell that phone on there network since they modify the firmware, hard to be sure they change the modem themselfs instead of sticking with the manufactures provided modem.
Hopefully that makes more sense.

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