[Radio] D821 phone with wrong LTE bands (USA) - Nexus 5 Q&A, Help & Troubleshooting

Hi all,
I hope to find a solution to a very strange problem I face. Sometime ago I bought a Nexus 5 D821. Th process was a little bit confusing, as I ordered the phone from eglobal (a chinese merchant), and the phone was delivered from the UK. until I faced my current problems, the phone worked quite nicely, so I cannot tell anything bad yet. However, recently I got a new mobile contract, which supports LTE (Vodafone Germany), but I am not able to connect to any LTE Band here. As it turns out, my phone, which in fact is the D821 Version, does only support the US LTE Bands 25, 26 and 41. I can only suppose that something strange happend during the manufacturing process, maybe this European phone should have been sold on the US market, so they patched it or something like that.
As I'm pretty sure, first you will think, well he got a D820, so whats this guy's problem, so I add some screenshot recently taken, which come from my phone. (I will add the images, once I figure out how it works.)
My Question is, is there any way to get the Europe Bands work on my phone. I found certain threads, discussing how to enable different bands on other phone versions, e.g. enable band 3 on D820, but that is not my use case.
As I understood it correctly, my hardware should support the European bands. If there really is a hardware difference, I guess that my phone neither will work on US LTE bands.
I can only speculate, so is it possible that someone extracts a certain file out of a D821, which I can flash to my phone? I read something about qnx files, which are also used to enable other bands. I think I'm quite skilled to do some further research, if someone can point me into the right direction. E.g. where can I find the configuration of the bands, is this somewhere in /proc filesystem? My phone is rooted and I'm familiar with linux and its commands. I bet it would take ages to gather all the necessary information on my own, unfortunately I do not have the time, so I though it would be beneficial to ask here for some help.
However, I would highly appreciate your comments, suggestions and any kind of help you could provide.
Best regards,
0xrayn
images can be found here (cannot upload yet to xdm, sorry):
ra23.net/imgs

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momostarz said:
Bump
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Sorry mate, wish i could help. D820 owner here, bumping your thread.

Related

[Q] Possible to chance baseband?

Hello guys, just got a new Nexus S I9023, from this seller
http://www.amazon.com/gp/product/B004USPRM4
But, they said it would be a UMTS 850Mhz frecuency phone, and turned out to be UMTS 900.....
Im familiar with rooting android phones and custom recoveries, but im new with samsung devices, so I ask
Is it possible to change the radio/baseband of my I9023 for a I9020T which is the proper frecuency I need?
Very much thanks in advance fellas.
As far as I know, you can't, sorry :/ I believe this is a hardware setting.
Not 100% sure, though.
Good Luck.
Radio bands are hardware based. You can't change your bands via software.
You can change your baseband radio, but that won't change bands.
Oh well.... just what I hoped for, I hope the amazon vendor knows the mess they did.
Sadly, Its hard for me to return it, since I live in Venezuela. Guess Ill sell it, theres a carrier here that supports 900mhz
Most of those independant sellers on Amazon or eBay are idiots...Never trust them and always check the device well before you buy...Live and learn

[Q] Will it work?

Hello everyone,
I've been searching sometime for an answer but I seem to keep getting conflicting information. Here's the gist: I'm moving to South Korea long term and I have a Samsung Nexus S that was purchased through Koodoo. Works like a sweet machine and I'm loath to give it up. I'm just wondering if it will work when I bring it over instead of forking out money again for another smartphone.
Reasons I think it will work: Nexus S seems to have a wide range of frequencies that it is compatible with, designed to be a world phone, etc.
Reasons I think it might not work: I keep hearing different information on South Korean frequencies from CDMA only to god-knows-what.
Can anyone out here help? It's quite confusing to me. If it won't work then I'll likely try to resell it (still in pristine condition) before leaving instead of bringing it all the way over and it being unusable. However if it does work, again, it would save me buying a new smartphone over there which will probably cost me more in the long run.
Any advice is MUCH appreciated. Thanks!
I'd like to say that it should work fine in S.Korea givin that the i9020 is basically the m200(Korean nexus s). I'm not completely sure though, I can be wrong so don't count me in on it 100%. If it's possible I would contact a Korean GSM telco through email and ask, they'll know if your nexus s is compatible with their bands. I would do that JUST to make sure
What model of Nexus do you have? Do you what bands/frequencies South Korea service providers use?

[Q] Purchasing a US N5 to use in the UK

morning guys
I've seen a few threads about buying in the US and using the N5 in different countries and the fact that although you can use it for 3G/GSM, being able to use 4G LTE is a no go due to the bands that are utilised.
Does/Would anyone know if this is changeable due to the radio being used or would it be a hardware matter as to me it would seem abit odd to produce 2 different phones using the same form factor where a piece of software enabling the bands would be more cost efficient. I appreciate that the software etc is probably being looked at by Dev's now but was wondering if anyone with previous knowledge of this would know.
Only reason I ask is as I'm in the US at the moment (the 32Gb works out considerably cheaper than in the UK) and the area I live in (in the UK) hasn't got 4G (and probably won't have for a while), whether or not to purchase one and then wait for a radio change, but if thats not possible I'll have to go with the expensive UK version
thanks for you help
There are two Nexus 5 models, the D820 (for the U.S) & D821 (for the rest of the world. According to this article by Android Central, it seems that there is a physical difference between the radios installed in each model. So I don't think you would have the option of flashing a radio from a D821 on to a D820 and suddenly have access to UK/European LTE bands. I'm no expert though so maybe others could confirm/deny this.
I too would like to know the same thing (hoping to take advantage of relatives in the US )
However reading around a bit I think it's a hardware limitation. They use the same software on the phones, but they enable the different LTE bands built into the hardware.
Pretty sure no amount of flashing radios will enable the different LTE bands...I'd love to be wrong though.
Shame, even after sales tax the saving would have been worth it. Might have to bite the bullet and buy UK price £££££££££

CDMA Galaxy s6 modem

So it seems the CDMA s6 uses the qualcomm MDM9635 modem instead of the shannon 333. This is surely because of the fact CDMA patents are largely owned by qualcomm (something along the lines of that) . What I want to speculate on is the fact that both the sprint and U. S. Cellular version have more lte bands listed than the Verizon model. Most notably 12 and 17. These would be great to have especially if someone ever wanted to jump ship to T-Mobile or AT&T (I'm sure for that exact reason verizon probably asked for them to be disabled). I'm wondering if we ever received root, and that's a big if, we could theoretically unlock those bands also. All in all it would make this phone more globally and domestically appealing. What are you guys thoughts on this? Hopefully we can have some devs jump aboard once we achieve root to make this happen.
jgeorge15 said:
So it seems the CDMA s6 uses the qualcomm MDM9635 modem instead of the shannon 333. This is surely because of the fact CDMA patents are largely owned by qualcomm (something along the lines of that) . What I want to speculate on is the fact that both the sprint and U. S. Cellular version have more lte bands listed than the Verizon model. Most notably 12 and 17. These would be great to have especially if someone ever wanted to jump ship to T-Mobile or AT&T (I'm sure for that exact reason verizon probably asked for them to be disabled). I'm wondering if we ever received root, and that's a big if, we could theoretically unlock those bands also. All in all it would make this phone more globally and domestically appealing. What are you guys thoughts on this? Hopefully we can have some devs jump aboard once we achieve root to make this happen.
Click to expand...
Click to collapse
Just a guess but I don't think just having root would allow this as at bare minimum it sounds like you'd have to modify the RIL.
Just get a Canadian variant G920W8. No CDMA support, but full LTE interoperability with SHANNON333 modem supporting Band 12, 13, 17, 2, 4, 5, 29.
Hmmmm...try this maybe
jgeorge15 said:
So it seems the CDMA s6 uses the qualcomm MDM9635 modem instead of the shannon 333. This is surely because of the fact CDMA patents are largely owned by qualcomm (something along the lines of that) . What I want to speculate on is the fact that both the sprint and U. S. Cellular version have more lte bands listed than the Verizon model. Most notably 12 and 17. These would be great to have especially if someone ever wanted to jump ship to T-Mobile or AT&T (I'm sure for that exact reason verizon probably asked for them to be disabled). I'm wondering if we ever received root, and that's a big if, we could theoretically unlock those bands also. All in all it would make this phone more globally and domestically appealing. What are you guys thoughts on this? Hopefully we can have some devs jump aboard once we achieve root to make this happen.
Click to expand...
Click to collapse
Could try the Qualcom Unlocking Bands thread....http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
milan03 said:
Just get a Canadian variant G920W8. No CDMA support, but full LTE interoperability with SHANNON333 modem supporting Band 12, 13, 17, 2, 4, 5, 29.
Click to expand...
Click to collapse
If CDMA wasn't an issue I would have got the international SM-G925F because that has plenty of LTE Band support. But at least for the next few years verizon still has a CDMA network and where I'm at that's the only provider I get good service with.
sd_N said:
Could try the Qualcom Unlocking Bands thread....http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
Click to expand...
Click to collapse
I actually did this with the one plus I had but I don't know if I want to try this with my s6. Don't have time to really fix things if anything goes wrong unfortunately or I would have
jgeorge15 said:
I actually did this with the one plus I had but I don't know if I want to try this with my s6. Don't have time to really fix things if anything goes wrong unfortunately or I would have
Click to expand...
Click to collapse
I tried on my rooted G920V. Can not connect to QPST or DFS. Are you sure there is a MDM9635?
lostvangel said:
I tried on my rooted G920V. Can not connect to QPST or DFS. Are you sure there is a MDM9635?
Click to expand...
Click to collapse
Well in all honesty the sprint galaxy s6 uses the mdm9635 as per a sprint rdf file on the phone. I was just making the assumption that the Verizon one would use the same one.
I'd love to hear if anyone else succeeds w/ this. I need more LTE bands than the crap list that Verizon supports on this damn modem
BobbySteel said:
I'd love to hear if anyone else succeeds w/ this. I need more LTE bands than the crap list that Verizon supports on this damn modem
Click to expand...
Click to collapse
The hardware is definitely capable. It's just a matter of someone more experienced tampering around. It should be on a software side that the bands are being disabled. Unfortunately if there is code within the kernel itself that's blocking these bands we may never be able to utilize them.
BobbySteel said:
I'd love to hear if anyone else succeeds w/ this. I need more LTE bands than the crap list that Verizon supports on this damn modem
Click to expand...
Click to collapse
Verizon supports very few other LTE Bands for international users. Those in Asia do not have LTE coverage.
jgeorge15 said:
I actually did this with the one plus I had but I don't know if I want to try this with my s6. Don't have time to really fix things if anything goes wrong unfortunately or I would have
Click to expand...
Click to collapse
Do you think this is possible on the verizon s6 galaxy? My phone has a custom rom but my kernel and bootloader are stock.
kmalh said:
Do you think this is possible on the verizon s6 galaxy? My phone has a custom rom but my kernel and bootloader are stock.
Click to expand...
Click to collapse
The thing is its stated you might need a custom kernel for these changes to stick. Seeing as our bootloader is locked most likely we will never get anything more than a custom rom. I don't really think any devs are looking into this. Modem work isn't really my cup of tea. Hope eventually someone comes up with something.

Question USA Customization on xperifirm

Hi,
I'm trying to get my Xperia 5iii vowifi working on Freedom mobile in Canada.
I want to test if they USA customization would work.
It might not, I see my XA2 H3123 had a customization for Freedom, which I know won't exist on anything newer.
I can see in xperifirm a usa customization for the 1iii with firmware 61.0.A.23.20
For the 5iii there is no USA customization but has the same firmware number.
Is there a usa customiztion on the way? Or can I download the firmware for the 1iii
It seems the phone is not out in the US yet. That’s what I’m waiting for to pick one up. I’ve seen pre-orders at US retailers saying Jan 11 is the date they will ship. So, you might find the firmware in a few weeks. I wouldn’t recommend trying to load the 1 III firmware.
Hi @Yakkosmurf ,
Thanks for the reply!
I'm really torn between trying to get this to work, and selling the device before messing around with it.
I think I'm going to give the MBN method a try
Any updates on this?
Several news articles say the 5 iii is out in USA now, but I cannot find any stores shipping or carrying it in north america (Canada)
I do find shippers selling what they call the "international version", apparently versions from Taiwan or Hong Kong.
If it turns out the "international" 5 iii is the same as the USA 5 iii and can just be reflashed to USA (I did this once with an older xperia) now the USA 5 iiithen that starts to look like a possibility…
Confusing me further the "international" XPeria 5 III is model number XQ-BQ72 and the USA model number is XQ-BQ62. No idea if there's an actual difference.
Hi @mcc111 ,
I'll tell you what's happened with mine. I bought the XQ-BQ72 and it does work on the networks here, but you can't get any of the added services like VoLTE or VoWifi (this one was important for my uses).
I tried flashing most of the roms from XQ-BQ72, but it seems the problem is there needs to be a configuration file in the modem, which basically won't exist if they haven't launched in the country (none for Canada).
I then tried flashing XQ-BQ52 which seems to be the European model, but that was even worse. The signal would connect and disconnect repeatedly, so there might be some hardware difference keeping it from playing nicely. Or, the 52 just has modem settings that don't work here. But I am not experienced enough to know which.
Because of that, I doubt flashing the 62 is a good idea. I haven't tried because I gave the phone to my wife who doesn't need the extra network features, and it'll be a headache to take back to screw around with more.
I bet since the 62 has been launched, it'll be available online eventually.
mavicanuck said:
Hi @mcc111 ,
I'll tell you what's happened with mine. I bought the XQ-BQ72 and it does work on the networks here, but you can't get any of the added services like VoLTE or VoWifi (this one was important for my uses).
I tried flashing most of the roms from XQ-BQ72, but it seems the problem is there needs to be a configuration file in the modem, which basically won't exist if they haven't launched in the country (none for Canada).
I then tried flashing XQ-BQ52 which seems to be the European model, but that was even worse. The signal would connect and disconnect repeatedly, so there might be some hardware difference keeping it from playing nicely. Or, the 52 just has modem settings that don't work here. But I am not experienced enough to know which.
Because of that, I doubt flashing the 62 is a good idea. I haven't tried because I gave the phone to my wife who doesn't need the extra network features, and it'll be a headache to take back to screw around with more.
I bet since the 62 has been launched, it'll be available online eventually.
Click to expand...
Click to collapse
Can you discribe who you got to flash the os? I tried flahstool but it didn't recognize my 5iii, then I tried newsflasher and got stuck in a boot loop. Saw a couple people in the newflasher thread getting bootloops as well.
Do you mind share your process?
There is a solution reported as working for both Xperia 1 III & Xperia 5 III posted here: https://forum.xda-developers.com/t/5ii-1-5iii-volte-patch-guide-to-release-the-root.4363269/
So, can anyone confirm that they were able to Flash a Xperia 5 III US Rom with 5G working, VolLTE and Volwifi working?
teostar said:
Can you discribe who you got to flash the os? I tried flahstool but it didn't recognize my 5iii, then I tried newsflasher and got stuck in a boot loop. Saw a couple people in the newflasher thread getting bootloops as well.
Do you mind share your process?
Click to expand...
Click to collapse
I used new flasher.
Newflasher guide to install new firmware for Xperia XZ Premium, XZ1 and more | Xperia Blog
One of the most frequent questions we get asked from Sony Xperia owners is how to change the firmware. Whether that relates to upgrading/downgrading major Android versions, debranding the handset or simply changing the firmware region for faster updates. Using
www.xperiablog.net
This was a few months ago. My flashing to other firmwares for the same model worked fine, but none had the modem configurations to work with freedom. If I flashed the other model, my cellular connection wouldn't work properly.
I haven't tried the USA version, and can't as I gave the phone to my wife who doesn't need the wifi calling.
&(*) said:
There is a solution reported as working for both Xperia 1 III & Xperia 5 III posted here: https://forum.xda-developers.com/t/5ii-1-5iii-volte-patch-guide-to-release-the-root.4363269/
Click to expand...
Click to collapse
I couldn't get this to work in Canada, but I'd love to hear if anyone else got it to work.
My understanding of this method is your configuration files need to exist on some other version, which it seems mine were not.
A note, it turns out that the XQ-BQ72 (international) and XQ-BQ62 (usa) actually support different bands. The XQ-BQ62 supports more bands. You can see this on this site and some other places: https://www.phonemore.com/compare/p...xq-bq72-vs-sony-xperia-5-iii-xq-bq62/17024281
The bands missing on the XQ-BQ72 are N20, N66, and N71.
No idea whether the remaining bands are adequate for USA 5G and/or on which providers.
I eventually got a XQ-BQ62. I'm having some issues with it but I'll make a new thread for that.

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