[Q] Data not working with unlocked Aria on tmobile - HTC Aria Q&A, Help & Troubleshooting

I recently unlocked my HTC Aria (Att) and am using it on T-Mobile but it will not connect to the data network i can text and call but not access the internet from tmobiles network. I have been trying to figure out how to make it connect and don't know what to do. I tried setting it up to a new VPN but i don't know if i did it correctly. I am aware that it will only be an edge connection but something is better than nothing. Is there anyone that could help me out?

mvineyard said:
I recently unlocked my HTC Aria (Att) and am using it on T-Mobile but it will not connect to the data network i can text and call but not access the internet from tmobiles network. I have been trying to figure out how to make it connect and don't know what to do. I tried setting it up to a new VPN but i don't know if i did it correctly. I am aware that it will only be an edge connection but something is better than nothing. Is there anyone that could help me out?
Click to expand...
Click to collapse
If you were trying to set up a VPN, that is the wrong option. You need to set up APN settings for T-Mobile. I'm sure if you search you will find the correct settings you need.

So an unlocked Aria's data will work with T-mobile?
Will an unlocked T-mobile device function fully with my AT&T sim card?

vicmora5 said:
So an unlocked Aria's data will work with T-mobile?
Will an unlocked T-mobile device function fully with my AT&T sim card?
Click to expand...
Click to collapse
Yes to both questions. That's what unlocked means.
The only thing that won't work is 3G data because AT&T and T-Mobile use different frequencies for 3G.
2G data will work fine.

vicmora5 said:
So an unlocked Aria's data will work with T-mobile?
Will an unlocked T-mobile device function fully with my AT&T sim card?
Click to expand...
Click to collapse
The answer is Yes and No. If your term 'fully' includes 3G data access then no in both cases you will not get 3G data speed. You will only be able to get Edge data, which is pretty slow. So if you need voice and text service and don't mind slow data speeds then go ahead.

Thanks. Well I actually have the problem that I don't get 3G on my Aria for whatever reason .-. Even though I emailed them and they said I should be able to get 3G all I have ever gotten is EDGE. l:
I asked this because I was looking at getting the new Sidekick, but I am seeing if it would be better to just go ahead and switch to T-Mobile, or staying with AT&T and buying an unlocked Sidekick.

vicmora5 said:
Thanks. Well I actually have the problem that I don't get 3G on my Aria for whatever reason .-. Even though I emailed them and they said I should be able to get 3G all I have ever gotten is EDGE. l:
I asked this because I was looking at getting the new Sidekick, but I am seeing if it would be better to just go ahead and switch to T-Mobile, or staying with AT&T and buying an unlocked Sidekick.
Click to expand...
Click to collapse
Does your Aria have the AT&T logo on the top right? Also, check the model number underneath the battery. If it says A6366 then it should support AT&T 3G frequencies. If it says A6380 then it won't.
How old is your SIM card? You may need a newer one.

drumist said:
Does your Aria have the AT&T logo on the top right? Also, check the model number underneath the battery. If it says A6366 then it should support AT&T 3G frequencies. If it says A6380 then it won't.
How old is your SIM card? You may need a newer one.
Click to expand...
Click to collapse
I already made a thread for this and couldn't figure out what was wrong, but what was weird was that like 30 mins ago I disconnected from my wifi because I moved my router and stuff, and I was getting G not E, but now that I did it again I am only getting E /:
That was the first time I saw I was getting G
And yes it's an AT&T one, it hasn't been too long since i've had it.
And the under the battery it says A6366

vicmora5 said:
I already made a thread for this and couldn't figure out what was wrong, but what was weird was that like 30 mins ago I disconnected from my wifi because I moved my router and stuff, and I was getting G not E, but now that I did it again I am only getting E /:
That was the first time I saw I was getting G
And yes it's an AT&T one, it hasn't been too long since i've had it.
And the under the battery it says A6366
Click to expand...
Click to collapse
I suspect the "G" you were seeing was for gprs, which if I am not mistaken is slower than edge. Somebody jump in and correct me if I am wrong. If you are running a stock rom, you would see a "3G" not just a "G" if you were actually getting 3G data connection.

vicmora5 said:
I already made a thread for this and couldn't figure out what was wrong, but what was weird was that like 30 mins ago I disconnected from my wifi because I moved my router and stuff, and I was getting G not E, but now that I did it again I am only getting E /:
That was the first time I saw I was getting G
And yes it's an AT&T one, it hasn't been too long since i've had it.
And the under the battery it says A6366
Click to expand...
Click to collapse
G is slower than E. It happens sometimes just because of the nature of wireless networks. Nothing to worry about. When you are getting 3G signal it will say "3G" or "H".
You should really do two things -- first make sure your area actually has 3G. Go to the coverage viewer on AT&T's website, click on "Data" at the top, then see if your area has dark blue ("Mobile Broadband" is what they call 3G on that page). Of course the other way to know is if you have any other AT&T phone that can get 3G signal at your location -- or perhaps a friend's phone.
If you are sure your area actually has 3G coverage, then I'd try going to an AT&T store and asking to switch to a new SIM card. Just explain that you can't get 3G signal on your phone and they should do it for free if the SIM card is old.
Good luck.

Related

[Q] gt-i9100 US 4g access

I have been around the forum for many years now, but am new to Android. I purchased a GT-i9100 in India for work travel between US and there. I have rooted and upgraded to 2.3.4, and applied a new kernel to remove the exclamation point. So, with that said, here is my question:
I am in the US right now, and in an area supported by T Mobile HSPA, but the phone will only connect to Edge. I am PRETTY sure it was only connecting to Edge before I did the work, but I cannot be sure. Would there be anything I did to the phone that would prevent it from getting onto the "4G" network? Is there anything I need to do now to change so it can connect?
I am not sure if this is related either, but I have a Verizon LTE data card, and if I place that SIM in the GT-i9100, it won't recognize it at all. It seems to only see T Mobile and ATT in the US.
I have spoken to T Mobile and they confirmed the 4g availability where I am, and they also reset my network connection, so the issue does not appear to be on my account or with TMobile.
Sorry for the long post, but I have been searching around and can't seem to get my small mind around resolution.
The SGS2 does not work with T-Mobile's 4G bands here in the US. If you want 4G you'll need AT&T.
dvinnola said:
Sorry for the long post, but I have been searching around and can't seem to get my small mind around resolution.
Click to expand...
Click to collapse
That's because there is no resolution. As stated in several other threads on these forums (learn to do a search, and there's even one on the main page of Q/A right now) THERE IS NO WAY to get 3G on T-Mobile. The hardware in the phone does not support their 1700MHZ band.
Your 2 options:
1. Buy a T-Mobile phone
2. Switch to AT&T

Do you have to unlock the Sim card on the i605 to flash it to Boost?

Do you have to unlock the Sim card that comes with the i605 to flash it to Boost?
Thank you,
John
pede69 said:
Do you have to unlock the Sim card that comes with the i605 to flash it to Boost?
Thank you,
John
Click to expand...
Click to collapse
The Note comes Sim unlocked from the factory.
As for flashing it to boost, i honestly have no idea, however usually you can just use any ROM and add in the correct APN information.
I forgot to mention, I have a Verizon phone.
Do their Sims come unlocked as well?
Oh... I did. Verizon is a pain is why I asked.
pede69 said:
I forgot to mention, I have a Verizon phone.
Do their Sims come unlocked as well?
Oh... I did. Verizon is a pain is why I asked.
Click to expand...
Click to collapse
I have the same phone I-605 VZW Note 2.
They most defiantly come Sim unlocked.
I switched to AT&T service and all I had to do was put in my AT&T Sim and check that all the APN information was right, works perfectly.
Only down side is I do not get AT&T LTE as the I-605 does not support that band, however i do get 3G, H, and H+ service.
pede69 said:
Do you have to unlock the Sim card that comes with the i605 to flash it to Boost?
Thank you,
John
Click to expand...
Click to collapse
You shouldnt have to . I have mine flashed to pageplus... Only thing is your gonna have a notification saying " NO SIM" which is annoying for the first few days... but you can edit the build prop to remove that....
But question: why go with boost.. Why dont you try pageplus or selectel etc... other Verizon prepaid's? better reception and data speed..
Milimbar said:
I have the same phone I-605 VZW Note 2.
They most defiantly come Sim unlocked.
I switched to AT&T service and all I had to do was put in my AT&T Sim and check that all the APN information was right, works perfectly.
Only down side is I do not get AT&T LTE as the I-605 does not support that band, however i do get 3G, H, and H+ service.
Click to expand...
Click to collapse
Hey what speeds do you get on ATT 3g, H , and H+
also since you have the ATT sim card which uses GSM network you can talk and surf at the same time correct?
Ma$etas said:
Hey what speeds do you get on ATT 3g, H , and H+
also since you have the ATT sim card which uses GSM network you can talk and surf at the same time correct?
Click to expand...
Click to collapse
3G is like 1.5MB/s
H is about 3MB/s
H+ is 4-5MB/s
I am 99% of the time on H+ and its never below 4MB/s. It could get much higher but where i use the phone I only have 2 bars of service.
As for surfing and talking... I honestly have no idea. i have never really needed to try.
Milimbar said:
The Note comes Sim unlocked from the factory.
As for flashing it to boost, i honestly have no idea, however usually you can just use any ROM and add in the correct APN information.
Click to expand...
Click to collapse
Milimbar said:
3G is like 1.5MB/s
H is about 3MB/s
H+ is 4-5MB/s
I am 99% of the time on H+ and its never below 4MB/s. It could get much higher but where i use the phone I only have 2 bars of service.
As for surfing and talking... I honestly have no idea. i have never really needed to try.
Click to expand...
Click to collapse
Well this whole ordeal I'm going through has left me exhausted and stressed out after a week and a half of trying
to figure it out. I have an i605 that was flashed to Boost and inadvertently got RTN'ed back to Verizon.
NO ONE on here has been able to help me get it back to Boost.
Even had a few people on here that programs phones all the time TeamView in with me and could not figure it out.
Works on Verizon when Sim is in and shows no Sim when it's out. And no service. Have been able to get most
Boost data flashed to phone but MDN and MSID won't stick. And also some NAM data.
I'm just lost at what to do now. AND... actually it is my wife's new phone and she is not a happy camper.
Thanks,
John
pede69 said:
Well this whole ordeal I'm going through has left me exhausted and stressed out after a week and a half of trying
to figure it out. I have an i605 that was flashed to Boost and inadvertently got RTN'ed back to Verizon.
NO ONE on here has been able to help me get it back to Boost.
Even had a few people on here that programs phones all the time TeamView in with me and could not figure it out.
Works on Verizon when Sim is in and shows no Sim when it's out. And no service. Have been able to get most
Boost data flashed to phone but MDN and MSID won't stick. And also some NAM data.
I'm just lost at what to do now. AND... actually it is my wife's new phone and she is not a happy camper.
Thanks,
John
Click to expand...
Click to collapse
Oh yeah...
Boost because they are the least expensive carrier that has a truly non-throttling
unlimited plan. My wife and I are on the shrinkage plan and are at 40$ each and
I burn up bandwidth like there was a fire sale on it.
Like 20g per month. Never had any issues. Any of you guys have a carrier that
you can do that with for that money?
Thanks,
John

[Q] A way to get 4G or 4G LTE on Verizon Galaxy S4?

I have a Verizon Galaxy S4 rooted and running the Darthstalker S4 Rom. I recently got an ATT sim card to put into my device because they were second best with the signal where I live. Which is the US. What I want to know, Is there a way to get 4G or 4G LTE on my device with ATT? I know 4G is here because my cousin is with them and has 4G LTE. Ive tried a few APN settings to no avail. Also every once in awhile I completely lose service because it starts searching for a service to run on again. All I get is H or H+ and half of the time, I dont even get that. That data never really works on that. Especially H. Also, I never get 3G either. Sorry if this is long, Im just at an end where I cannot find an answer. Any help would be greatly appreciated. Thanks
mouthymotor said:
I have a Verizon Galaxy S4 rooted and running the Darthstalker S4 Rom. I recently got an ATT sim card to put into my device because they were second best with the signal where I live. Which is the US. What I want to know, Is there a way to get 4G or 4G LTE on my device with ATT? I know 4G is here because my cousin is with them and has 4G LTE. Ive tried a few APN settings to no avail. Also every once in awhile I completely lose service because it starts searching for a service to run on again. All I get is H or H+ and half of the time, I dont even get that. That data never really works on that. Especially H. Also, I never get 3G either. Sorry if this is long, Im just at an end where I cannot find an answer. Any help would be greatly appreciated. Thanks
Click to expand...
Click to collapse
Try flashing the latest Modem, it seems to to support the ATT LTE Bands. I have used an AIO sim in both a VZW GS4 and LG G2 and both get LTE. It doesn't seem to switch very quickly either. Also make sure you are have LTE/GSM selected for the radio.
My 2 cents
rinkde post
equake said:
Try flashing the latest Modem, it seems to to support the ATT LTE Bands. I have used an AIO sim in both a VZW GS4 and LG G2 and both get LTE. It doesn't seem to switch very quickly either. Also make sure you are have LTE/GSM selected for the radio.
My 2 cents
Click to expand...
Click to collapse
Could you point me into the right direction? Also, I can only choose GSM, or LTE. Not both at the same time. And GSM only works
mouthymotor said:
Could you point me into the right direction? Also, I can only choose GSM, or LTE. Not both at the same time. And GSM only works
Click to expand...
Click to collapse
Kinda dependent on the ROM but you might want to use the APP called Advanced Signal Status (Play Store).
From memory you can't since this model dosent support the other carrier's LTE/4g band. May be wrong but pretty sure that info is correct
Sent from my SCH-I545 using XDA Premium 4 mobile app

[Q] Grandfathered T-Mobile $5 data plan on Galaxy S5?

Is there any way for me to get my grandfathered $5/month "Preferred Phone First Unlimited Web Only" data plan to work on a Galaxy S5?
Currently I am told "Your data plan does not work on this device", but it works fine on an HTC Radar 4G.
I'm hoping to at least get some part of the data plan working on this phone, even if some features might be limited (i.e. even if I can only check email, that's better than nothing)... currently I can't use my data plan at all on this phone.
wfunctionjohn said:
Is there any way for me to get my grandfathered $5/month "Preferred Phone First Unlimited Web Only" data plan to work on a Galaxy S5?
Currently I am told "Your data plan does not work on this device", but it works fine on an HTC Radar 4G.
I'm hoping to at least get some part of the data plan working on this phone, even if some features might be limited (i.e. even if I can only check email, that's better than nothing)... currently I can't use my data plan at all on this phone.
Click to expand...
Click to collapse
Try setting it to only 4g and changing your APN to the non LTE.
Sent from my SM-G900T using XDA Premium 4 mobile app
---------- Post added at 09:06 AM ---------- Previous post was at 09:05 AM ----------
Try setting it to only 4g and changing your APN to the non LTE.
Sent from my SM-G900T using XDA Premium 4 mobile app
wfunctionjohn said:
Is there any way for me to get my grandfathered $5/month "Preferred Phone First Unlimited Web Only" data plan to work on a Galaxy S5?
Currently I am told "Your data plan does not work on this device", but it works fine on an HTC Radar 4G.
I'm hoping to at least get some part of the data plan working on this phone, even if some features might be limited (i.e. even if I can only check email, that's better than nothing)... currently I can't use my data plan at all on this phone.
Click to expand...
Click to collapse
Yep what jab74101 said . Just cahnge your phone under he more networksmobile network setting to wcdma/gsm only . You wont have LTE but hopefully you will find a work around for it
jab74101 said:
Try setting it to only 4g and changing your APN to the non LTE.
Sent from my SM-G900T using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Which APN do you mean? If you mean epc.tmobile.com, it doesn't work -- I still get the same error as I did with fast.t-mobile.com (yup I switched to WCDMA/GSM, and verified LTE was off).
spirodave said:
Yep what jab74101 said . Just cahnge your phone under he more networksmobile network setting to wcdma/gsm only . You wont have LTE but hopefully you will find a work around for it
Click to expand...
Click to collapse
Yup I just replied to that one right now.
Question though: is WCDMA/GSM 3G or 4G? Or is it a marketing ambiguity? I'm confused because online sources say WCDMA is 3G whereas the phone changes from "4G LTE" to "4G" (not "3G") when I switch to that...
wfunctionjohn said:
Yup I just replied to that one right now.
Question though: is WCDMA/GSM 3G or 4G? Or is it a marketing ambiguity? I'm confused because online sources say WCDMA is 3G whereas the phone changes from "4G LTE" to "4G" (not "3G") when I switch to that...
Click to expand...
Click to collapse
Just go to settings then about phone and click Status and see what type of network you are connected to . It will say UMTS or HSPA+ .Depending where you are will decide which one . I just turned my phone to that setting GSM/WCDMA and I am showing HSPA+ . So that means you should get HSPA+42 which isnt bad at all here in saint louis .. I see actual DL speeds of up to 20Mbps on HSPA+42 . Did you call TMOBILE and tell them about your problem ? I wouold think if you are grandfathered in then they should take care of your problem by offering the true unlimited on LTE ..Unless that isnt in the original contractT
spirodave said:
Just go to settings then about phone and click Status and see what type of network you are connected to . It will say UMTS or HSPA+ .Depending where you are will decide which one . I just turned my phone to that setting GSM/WCDMA and I am showing HSPA+ . So that means you should get HSPA+42 which isnt bad at all here in saint louis .. I see actual DL speeds of up to 20Mbps on HSPA+42 . Did you call TMOBILE and tell them about your problem ? I wouold think if you are grandfathered in then they should take care of your problem by offering the true unlimited on LTE ..Unless that isnt in the original contractT
Click to expand...
Click to collapse
Oh I see, I'll take a look under the status then.
No I haven't tried calling T-Mobile, and frankly I don't know what our original contract looks like (I don't think I have a copy, and if I ask them to send me a copy I'm not sure I could trust them to have not changed the terms).
I'm also worried if the wrong rep sees the plan, he/she will mess it up -- most of them have a tendency to go to great lengths to get you off the grandfathered plans (they aren't even all aware that the plan exists) so it's not worth the risk for me at the moment.
If you log into your tmobile account it should blaintently show that you have the $5 data . I dont think there is anyway they could mess that up .. If I had UNlimited I would defenitely want to use LTE .
spirodave said:
If you log into your tmobile account it should blaintently show that you have the $5 data . I dont think there is anyway they could mess that up .. If I had UNlimited I would defenitely want to use LTE .
Click to expand...
Click to collapse
Well it says "Preferred Phone First Unlimited Web Only", but like I said, I've read more than on horror story about how representatives have messed it up... if I have to go that direction I will, but I'm not convinced yet that I do.
wfunctionjohn said:
Well it says "Preferred Phone First Unlimited Web Only", but like I said, I've read more than on horror story about how representatives have messed it up... if I have to go that direction I will, but I'm not convinced yet that I do.
Click to expand...
Click to collapse
When you say "unlimited web only" that is different then "unlimited data". Those are very old plans that were out for specific phones. In order to get this to work, you are going to have to Google a lot and figure out the proper apn settings. What does the Radar 4G specify as its APN settings? I would try to get as much information from that phone as I could. Secondly, it could be that T-Mobile is reading the device you are using and then not allowing it to work on their end.
wfunctionjohn said:
Well it says "Preferred Phone First Unlimited Web Only", but like I said, I've read more than on horror story about how representatives have messed it up... if I have to go that direction I will, but I'm not convinced yet that I do.
Click to expand...
Click to collapse
Yes Elsebb commented below and what he said is what you should go with ... i didnt think about the web only thing . that is completely different. You need to figure out the correct APN settings and go with that . I think it might be impossible to use LTE with it . cant really hide LTE
elesbb said:
When you say "unlimited web only" that is different then "unlimited data". Those are very old plans that were out for specific phones. In order to get this to work, you are going to have to Google a lot and figure out the proper apn settings. What does the Radar 4G specify as its APN settings? I would try to get as much information from that phone as I could. Secondly, it could be that T-Mobile is reading the device you are using and then not allowing it to work on their end.
Click to expand...
Click to collapse
It doesn't seem to be related to the APN at all. I just tried another new Android 4.4.2 phone (I'll avoid mentioning what kind since I don't want T-Mobile to see this and block it =P) and it works just fine on LTE with the typical fast.t-mobile.com APN.
I guess that means it's based on the IMEI, meaning you just have to find a brand/model that works, so there isn't much hope for the S5.
wfunctionjohn said:
It doesn't seem to be related to the APN at all. I just tried another new Android 4.4.2 phone (I'll avoid mentioning what kind since I don't want T-Mobile to see this and block it =P) and it works just fine on LTE with the typical fast.t-mobile.com APN.
I guess that means it's based on the IMEI, meaning you just have to find a brand/model that works, so there isn't much hope for the S5.
Click to expand...
Click to collapse
You know what, i remember when i was getting a new phone carrier that i heard of Go Phone and that if you purchased a Go SIM for an ATT phone, it simply won't work, but if you bought a GSM phone and unlocked it (one that wasn't ATT branded) it worked perfectly.
I wonder if you are experiencing something similar. The S5 that you have, is it T-Mobile branded? And if it is, is the Android 4.4.2 phone you just tried now T-Mobile branded? That might be the issue.
elesbb said:
You know what, i remember when i was getting a new phone carrier that i heard of Go Phone and that if you purchased a Go SIM for an ATT phone, it simply won't work, but if you bought a GSM phone and unlocked it (one that wasn't ATT branded) it worked perfectly.
I wonder if you are experiencing something similar. The S5 that you have, is it T-Mobile branded? And if it is, is the Android 4.4.2 phone you just tried now T-Mobile branded? That might be the issue.
Click to expand...
Click to collapse
That's possible but somewhat unlikely since my HTC Radar was also T-Mobile branded just like my S5. I can't rule it out without testing it on an unlocked phone.
wfunctionjohn said:
That's possible but somewhat unlikely since my HTC Radar was also T-Mobile branded just like my S5. I can't rule it out without testing it on an unlocked phone.
Click to expand...
Click to collapse
Did the HTC Radar have LTE?
elesbb said:
Did the HTC Radar have LTE?
Click to expand...
Click to collapse
No, but I don't have any reason to believe LTE is relevant here (it never seems to make a difference in any scenario).
wfunctionjohn said:
No, but I don't have any reason to believe LTE is relevant here (it never seems to make a difference in any scenario).
Click to expand...
Click to collapse
The thing I'm getting at is that phone because it doesn't have lte, is an "approved" T-Mobile phone that works with that plan. See if you can get an unlocked att s5 and see if it works.
Sent from my SM-G900T using Tapatalk

Question AT&T phone calls

I have At&t and just got the Oppo Find N, chinese version. When i got to make a phone call, it pauses and sometimes doesnt seem to even connect before the call goes through. Data and texts seem to work fine with no hesitation. Anyone else having this problem or any advice? Thanks!
I had the same thin happen while in the office at home is working well.. not sure will test again tomorrow.. are you still having the issue ?
Sorry lads, i was on the same boat as you just a few days ago. My Find N also stopped making and receiving phone calls. Turns out AT&T shut down its 3G services hence you're unable to make phone calls. You'll need to switch to Tmobile if you want to continue using the phone. Tmobile is retiring 3G in July but I believe it handles phones differently than AT&T so we'll still be able to use it after July.
Not sure if that is the case I am on ATT and my Oppo N is on 4G able to make calls…
and might have spoken to soon.. unable to make calls any more.. The weird part is that SMS and 4G internet works..
carrieta17 said:
Not sure if that is the case I am on ATT and my Oppo N is on 4G able to make calls…
Click to expand...
Click to collapse
It is pretty much the case. If youre able to make phone calls currently, it means ATT hasn't shut down the 3G towers in your area. They have plans to complete shutdown by Feb
carrieta17 said:
and might have spoken to soon.. unable to make calls any more.. The weird part is that SMS and 4G internet works..
Click to expand...
Click to collapse
Right..... You didn't speak too soon. The towers in your area were just shut down. You'll have to switch to Tmobile now.
Since folks here are talking about T-mobile, I have a question.
Does 5G work with it on T-mobile (I'm in the US)?
I saw that it supports n41 which is one of the band supported by T-mobile. But just wanna double-check.
iocat said:
Since folks here are talking about T-mobile, I have a question.
Does 5G work with it on T-mobile (I'm in the US)?
I saw that it supports n41 which is one of the band supported by T-mobile. But just wanna double-check.
Click to expand...
Click to collapse
I'm on T-Mobile, and have not had working 5G.
That doesn't mean it doesn't work somewhere... But not here in LA.
rcs1000 said:
I'm on T-Mobile, and have not had working 5G.
That doesn't mean it doesn't work somewhere... But not here in LA.
Click to expand...
Click to collapse
I guess 4G LTE speed wasn't too bad?
I've been on both and honestly my 5G UC indicator shows up but the speed difference is not perceivable.
Suggest trying to manually change the band preference using a utility such as '5G LTE' by Rudra Green on the play store. This allows lots of different LTE and 5g options to be selected. The only problem is that the setting is lost after the phone is restarted. I have been using this to enable 5g in the UK.

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