Question SM-G998B no carrier aggregation, help needed - Samsung Galaxy S21 Ultra

So i bought a sm-g998b (s21 ultra) from australia (telstra) and came to estonia, and here i dont have any carrier aggregation, volte, vowifi, doesnt work, no 4.5g, no 5g, i tried switching bands to european but it says unsuccesful with all of the bands, is there a solution for my problem? eg changing out the firmware or something else?

Everything is absolutely normal - a quick Google search would have told you the same.
Estonia doesn't have a 4G network (*country coverage is approx 2% for 4G).
- You'll have a few 4G cells in the center of Talinn
- Since 3G doesn't have VoLTE (LTE=4G), everything is in order.
- VoWIFI won't work either, because *most* of the time, the wifi network must be on your carrier broadband box.

RedWave31 said:
Everything is absolutely normal - a quick Google search would have told you the same.
Estonia doesn't have a 4G network (*country coverage is approx 2% for 4G).
- You'll have a few 4G cells in the center of Talinn
- Since 3G doesn't have VoLTE (LTE=4G), everything is in order.
- VoWIFI won't work either, because *most* of the time, the wifi network must be on your carrier broadband box.
Click to expand...
Click to collapse
You're wrong. Even your link shows, that the coverage percentage is definitely higher than 2%, in addition to the fact that this map only contains community-provided data, which might not cover all areas.
All 3 telcos in Estonia have about 99% of coverage of the whole country, two of which (Telia and Elisa) also support VoLTE for certain phones and Telia (also building 5G using DSS) supports VoWiFi.
You can take a look at CellMapper [1] and see, how many 4G towers there actually are in Estonia.
1 - https://www.cellmapper.net/map?MCC=...Band=0&showSectorColours=true&mapType=roadmap
To OP: Are you roaming or using a local SIM card?

RedWave31 said:
Everything is absolutely normal - a quick Google search would have told you the same.
Estonia doesn't have a 4G network (*country coverage is approx 2% for 4G).
- You'll have a few 4G cells in the center of Talinn
- Since 3G doesn't have VoLTE (LTE=4G), everything is in order.
- VoWIFI won't work either, because *most* of the time, the wifi network must be on your carrier broadband box.
Click to expand...
Click to collapse
you are completely wrong, estonia have had 4g+(lte-a) since 2011-2012 and coverage is 99.9% of the whole country, i have had volte and 4g+ work on my xperia xz3 since 2012-2013, i have local sim btw, i am from estonia, 2% can be for 5g rollout but thats not the issue right now, issue is i dont have any carrier aggregation on my s21 ultra and on my gfs s20 ultra, i have mine flashed with odin to SEB latest firmware but that did not resolve the issue, when i go into mobile data service menu it only shows one tower connected there and i already talked with my service provider they said that i should have at least 13 masts covering my location with perfect visiblity + all bands covered so i should be getting at least 6-800mbps (according to their test they ran on my location, yes my isp is doing tests on actual on site locations to help clients), so if anyone has any ideas as what could be wrong or should i flash any other rom on it or something? i am out of ideas, i though firmware flash would fix my issue

Haleskinn said:
So i bought a sm-g998b (s21 ultra) from australia (telstra) and came to estonia, and here i dont have any carrier aggregation, volte, vowifi, doesnt work, no 4.5g, no 5g, i tried switching bands to european but it says unsuccesful with all of the bands, is there a solution for my problem? eg changing out the firmware or something else?
Click to expand...
Click to collapse
did you find a solution?

clipdawg05 said:
did you find a solution?
Click to expand...
Click to collapse
nope no solution, tried SEB firmwares etc, but nothing, got 4.5g working now but it only works 10% of the time maybe

Haleskinn said:
nope no solution, tried SEB firmwares etc, but nothing, got 4.5g working now but it only works 10% of the time maybe
Haleskinn said:
nope no solution, tried SEB firmwares etc, but nothing, got 4.5g working now but it only works 10% of the time maybe
Click to expand...
Click to collapse
That is weird. You have the global version of the phone. It should work
Click to expand...
Click to collapse

Related

Stuck on EDGE!!!

I have an i9305 and I can't figure out why my device can't receive UMTS/WCDMA or LTE signal. ( on stock rom)
Grigster said:
I have an i9305 and I can't figure out why my device can't receive UMTS/WCDMA or LTE signal. ( on stock rom)
Click to expand...
Click to collapse
where do you live, do you have a lte plan and a lte sim?
Update:
I have come to the conclusion that the 3G and LTE modul might by fried, so I'm sending it to warranty. Anyway, thank for your concern!
I live in Romania and I have a fully working HSPA+ plan.
Grigster said:
Update:
I have come to the conclusion that the 3G and LTE modul might by fried, so I'm sending it to warranty. Anyway, thank for your concern!
I live in Romania and I have a fully working HSPA+ plan.
Click to expand...
Click to collapse
no way 3g module would be faulty, its the same piece (the whole cellular thing)
go to your carrier first, see if they need to configure something(like apn or so)
there is also the hidden menu(dont remember how to open it, search on google) where you can change some signal options

Huawei Mate S 4g+ issue

I recent buy a Mate S, I'm the first owner. My issue with it is that it wont go on 4g+, it appears only 4g in the right top corner of the screen. I had already changed two operators, first time I was on Vodafone 4g+, and now I'm on Orange 4g+., I taught the mobile operator was the problem but...
I've called the operators, and they told me the problem is not from them because they already have my phone settings in their data base and should had worked.
When I get the nano sim out, and put it for example in a S6 Edge, or S5 Neo, 4g+ connection is avaible, but when i get it back in my Mate S, it wont work.
I've checked already the access name points: Name, Apn, Proxy, Port, Server, MCC, MNC, and they are all the same, like the other phones.
I turned on the 4g+ function from the phone internet menu, the phone restarted automaticaly and nothing hapens, just 4g.
My country is Romania, from Europe and i have the curent firmware CRR-L09C432B361,EMUI 4.0.1, android 6.0
My frustration is that I pay for 4g+ speed, and my phone is brand new. The seller wont change the phone because it has pass 31 days from the buing time.
I've sent it in service, but the only thing they done was an update, stock firmware and new update with the same problem...
Please help me with and advice, i am very greatefull, have a nice day and please excuse my gramatical problems, i don't excelate in english.
This is my first post, please be gentle.
Marchiano88 said:
I turned on the 4g+ function from the phone internet menu, the phone restarted automaticaly and nothing hapens, just 4g.
My country is Romania, from Europe and i have the curent firmware CRR-L09C432B361,EMUI 4.0.1, android 6.0
My frustration is that I pay for 4g+ speed, and my phone is brand new.
Click to expand...
Click to collapse
Same problem with my phone and I'm from Romania too. I've already wrote to Huawei and I'm still waiting for their answer. You can also contact them here: http: // consumer.huawei.com/ro/contact-us/index.htm?tag=email
vertissimos said:
Same problem with my phone and I'm from Romania too. I've already wrote to Huawei and I'm still waiting for their answer. You can also contact them here: http: // consumer.huawei.com/ro/contact-us/index.htm?tag=email
Click to expand...
Click to collapse
Hy, I'm glad for your reply. I wrote to huawei too, 2 weeks ago and they still didnt answer...lack of support from them. No explanation, shame on them
Marchiano88 said:
Hy, I'm glad for your reply. I wrote to huawei too, 2 weeks ago and they still didnt answer...lack of support from them. No explanation, shame on them
Click to expand...
Click to collapse
No worry, if i'm not getting any answer soon, i'll call them at TelVerde România: 0800400896. Somehow, i'll find an answer. The phone is ok, but I would like to use the 4G+ connectivity too. I'll write here when i'il have an issue.
Where is the option to select 4g+ in the settings? I have B361.
zan. said:
Where is the option to select 4g+ in the settings? I have B361.
Click to expand...
Click to collapse
Settings -> The first "More" -> Mobile Network -> The last option "Frequency aggregation" (that must be "on").
Huawei answered me. They told that the Huawei Mate S has 4G+ capabilities, that it can aggregate romanian frequencies carriers (for example, band 3 and band 20 for Vodafone Romania which means the 1800 MHz and 800 MHz bands aggregation). But the speed is limited because the phone is LTE Cat 4 only.
And the most important, the 4G+ icon is a standard protocol of the phone and it is possible to see 4G icon instead 4G+ icon even then the frequencies aggregation is realized. In romanian: pictograma de 4G+ reprezinta un protocol standard al smartphone-ului, de aceea este posibil ca in dreptul liniilor de semnal sa va apara specificat tot conexiune 4G, desi smartphone-ul este conectat la 4G+ prin agregarea benzilor.
The last part seems a little strange to me: I have a 4G+ connection, but the phone shows only a 4G icon and the speed is max 150 Mbps because LTE Cat 4 capabilities. For me that is like the phone is a 4G phone only with a menu option that makes you believe you have a 4G+ phone.
I think that I'll go to the service center too.

EU VoLTE on SM-G7810

Hello!
Did anyone manage to get VoLTE and VoWiFi to work with any EU carrier and SM-G7810? I have the options enabled in settings, but, unfortunately, I think the phone does some sort of carrier check(my carrier is Orange RO). As it seems that many people in Europe bought this phone as it has 8 GB RAM and it tends to be rather cheap, has anyone been able to get VoLTE to work? The bands are okay, and in my case I know it's not a carrier issue(I had Xiaomi phones which were also not supported officially by the carrier but I called them once and told asked them to just enable VoLTE and VoWiFi for me and from that point on it worked after I disabled the carrier check on the Xiaomi phone). In my area I have poor 3G and 2G reception, but very good LTE band 20 so VoLTE is quite important for me.
Jacharcus said:
Hello!
Did anyone manage to get VoLTE and VoWiFi to work with any EU carrier and SM-G7810? I have the options enabled in settings, but, unfortunately, I think the phone does some sort of carrier check(my carrier is Orange RO). As it seems that many people in Europe bought this phone as it has 8 GB RAM and it tends to be rather cheap, has anyone been able to get VoLTE to work? The bands are okay, and in my case I know it's not a carrier issue(I had Xiaomi phones which were also not supported officially by the carrier but I called them once and told asked them to just enable VoLTE and VoWiFi for me and from that point on it worked after I disabled the carrier check on the Xiaomi phone). In my area I have poor 3G and 2G reception, but very good LTE band 20 so VoLTE is quite important for me.
Click to expand...
Click to collapse
Hi, do you fix it ? I have also the same problem.
After clearing Carrier Whitelist VoLTE is working for me on DiGi and Vodafone Romania . IT also works Digi 5G that doesn't have extensive coverage .
What strangely doesn't seem to work is B3 2CA on Vodafone , strangely it works B3+B1 but not B3 intraband.
Also the good thing about the phone is the existance of B20 that really works even the phone is HK, China model
rama898989 said:
After clearing Carrier Whitelist VoLTE is working for me on DiGi and Vodafone Romania . IT also works Digi 5G that doesn't have extensive coverage .
What strangely doesn't seem to work is B3 2CA on Vodafone , strangely it works B3+B1 but not B3 intraband.
Also the good thing about the phone is the existance of B20 that really works even the phone is HK, China model
Click to expand...
Click to collapse
Hello. Can you please tell me how you cleared Carrier Whitelist? I can't find any information online. Thank you.
Search XDA as it is in the service menu and it is used generally for 5GCarriwr Whitelisting.

Question S21 Ultra, originally T-Mobile, now Visible (Verizon), but doesn't have correct bands for 5g

I bought an unlocked S21 Ultra last fall that was originally sold by T-Mobile, and I initially used it with H2o (AT&T) and it always worked fine, though it never got 5g service, though I'm not sure that 5g has been implemented yet by AT&T in the Phoenix market, at least not the C-band
On Jan 21, it automatically updated the software so that it now shows SM-G998U_OYN_ATT_12_0018 ATT/XAA,TMB/TMB as the Service provider software version, so it seemingly has both AT&T and T-Mobile software at this time. At that time, it also switched from showing the T-Mobile logo on bootup to showing the AT&T logo, and I think it added, NR B66 as an additional radio band (in addition to NR B41, B71 and the UW bands of B260 and B261). Earlier this week I switched to Visible and while it works fine on 4g LTE, I'm not getting any 5g connectivity. In researching bands, the only one that I have that Verizon uses is the NR B66, while I probably really need NR B2, B5 and in particular B77 to get the new C-band.
The question is, will the phone at some point automatically update to VZW software, and at that point enable additional bands that I need to get 5g? Or is there a way of forcing this? Or what is the best option to enable 5g on this phone? I really don't want to switch to the U1 software as that seems to require a factory reset, and I'm not keen on going through reconfiguring everything again and getting all my icons back where I want them.
Or will this phone not support these bands unless the U1 software is first installed?
Thanks!
Anyone?
Have you tried switching to a Verizon compatible firmware?
With ODIN, you can switch firmwares without losing data.
I suggest trying that, US carrier optimization is known to be the worst
No, I have not tried that. Sorry to ask a dumb question, but what firmware should I use, and where do I find it? I ask because the "official" firmware seems to be from Jan 2021, and it seems to be the U1 option, not carrier specific firmware. I've done some searching, but I haven't been able to find the Verizon version so far. Thanks.
I'm on an European 21U, for the USA version, you need to check this guide
G998U and G998U1 Firmware Links and Flashing Discussion Here
For those who aren't already aware, G998U is the model number of all of the US carrier versions of the S21 Ultra. The G998U1 is the model number of the same device, but sold by Samsung SIM unlocked and with no carrier bloatware. Firmware is 100%...
forum.xda-developers.com
RedWave31 said:
I'm on an European 21U, for the USA version, you need to check this guide
G998U and G998U1 Firmware Links and Flashing Discussion Here
For those who aren't already aware, G998U is the model number of all of the US carrier versions of the S21 Ultra. The G998U1 is the model number of the same device, but sold by Samsung SIM unlocked and with no carrier bloatware. Firmware is 100%...
forum.xda-developers.com
Click to expand...
Click to collapse
I think you need to go from U1 to U (VZW) to see if that solves it.
Can't help on anything else, since on Exynos (European) devices, flashing is much easier than on Snapdragon devices.
I read the link above in detail, and it says that the only difference in the 5 files is the "USERDATA", otherwise the other 4 files are identical between vendors. So USERDATA seems to be a critical file in regards to switching from T-Mobile to Verizon. My concern is that further down in the first article it says that flashing the USERDATA file will wipe the existing data.
- HOME CSC file keeps data intact; using the other CSC will wipe data. Flashing USERDATA will also wipe data.
If this is true, and the only way to manually get the VZW info that I'm looking for without flashing to U1, there doesn't seem to be any advantage to flashing this using Odin, as it'll also wipe my user data. In other words, if I go that route, I'd be better off just flashing to U1, and try that. Theoretically, this should give me everything that I need without first flashing to VZW, and if it'll work with Verizon/Visible without the VZW bloatware, then that would definitely be preferred.
My entire reason for trying all this is to try to get the additional NR radio bands, specifically N2, N5 and N77, which I don't have with the T-Mobile software.
As for backing up the phone and then restoring it, does Odin provide this capability? Or is Samsung Kies a much better option? The Kies software seems to be made for this, so if this is the case and it'll exactly restore the phone like it was before, then it wouldn't actually be a big deal to backup, flash and then restore the phone.
it's a problem with the T-Mobile S21 series, you need to flash U1 software.
Not really what I wanted to hear, but sounds like you have experience with this. I take it that the factory T-.Mobile software (or is it firmware?) essentially locks out the NR bands that they don't have, even if other software is installed on top of it. Thx
Last night I broke down and flashed it with the U1 XAA firmware, using the CSC (not Home) file. It went well, finishing the flash in <4 minutes. Then spent the next 4+ hours reconfiguring things that aren't automatically restored by using SmartSwitch to restore. I'm not sure how that works, but it seems that it doesn't actually back up the apps, rather it just backs up the name and placeholder, so when it's restored it has to redownload every single stinking app again. Plus, I had to go through and relog into every app where this is an issue, plus because it's now called SM-G998U1, I had to delete all the old G998U devices in various places, particularly Google. What a pain... Kind of wish I'd tried the Home CSC, particularly after what I see below.
What's interesting is that I know have the N2, N5, N66, plus the N77 and N78 C-bands, (as well as N260) but I lost the T-Mobile specific bands of N41 & N71, in addition, I also lost N261. I don't care about these as I'm not in an area where the Ka millimeter wave bands matter. However, I do find it interesting that the U1 firmware removed the TMB specific 5g bands. I would have thought that the Factory U1 firmware would automatically support all US carrier bands, but I guess not.
I'm using Visible (Verizon MVNO), and while it worked "decently" before, it's now orders of magnitude better than it was previously as a U device. I debated installing the VZW firmware, but decided not to, and I most definitely don't want to go through setting everything up again. However, I know have a MUCH better signal at my house, a consistent 5 bars, and a signal right around a 89-90 dB, while previously it hovered around 105-109 dB, which is pretty marginal, particularly when the antenna is only about 1/3 mile away. It also now tells me that I'm on LTE+ (rather than LTE 4g like before), so apparently this particularly tower isn't 5g yet, and I haven't left the house yet to see what I get at other locations from other towers.
However, what's really astounding is the speeds that I know get. Previously, download speeds would always start off slow at around 10 - 15 Mbs, and eventually get up to around 60 - 70 on the average, with upload speeds typically maxing out around 15 Mbs. However, now, I'm getting consistent download speeds of right at 240 Mbs (Visible limits max speed to around 250 Mbs on 5g), and upload speeds of ~70 Mbs. It's an incredible difference, so my suspicion is that I may be getting some 5g speeds, even though both Network Cell Info and LTE Discovery apps tell me that I'm generally only connected to the B2 and B5 LTE bands. Or maybe it's possible to get that kinds of speeds out of LTE with the new technology (forget what it's called) that shares bands at the same time, hence the LTE+ moniker.
Also, even though I installed the CSC file, the Service Provider Software is still ATT/TMB. To be specific, it's SAOMC_SM-G998U1_OYM_ATT_12_0026 ATT/ATT,ATT/TMB, and there isn't VZW anywhere. Maybe this will eventually update I don't know. However, it did remove the ATT startup splash screen that I had previously, so that's changed.
It also automatically downloaded and installed One UI 4.1 afterwards, so that seems to be working properly. Any thoughts on any of the above?
Thanks for the help that was provided previously.
kmdigital said:
Last night I broke down and flashed it with the U1 XAA firmware, using the CSC (not Home) file. It went well, finishing the flash in <4 minutes. Then spent the next 4+ hours reconfiguring things that aren't automatically restored by using SmartSwitch to restore. I'm not sure how that works, but it seems that it doesn't actually back up the apps, rather it just backs up the name and placeholder, so when it's restored it has to redownload every single stinking app again. Plus, I had to go through and relog into every app where this is an issue, plus because it's now called SM-G998U1, I had to delete all the old G998U devices in various places, particularly Google. What a pain... Kind of wish I'd tried the Home CSC, particularly after what I see below.
What's interesting is that I know have the N2, N5, N66, plus the N77 and N78 C-bands, (as well as N260) but I lost the T-Mobile specific bands of N41 & N71, in addition, I also lost N261. I don't care about these as I'm not in an area where the Ka millimeter wave bands matter. However, I do find it interesting that the U1 firmware removed the TMB specific 5g bands. I would have thought that the Factory U1 firmware would automatically support all US carrier bands, but I guess not.
I'm using Visible (Verizon MVNO), and while it worked "decently" before, it's now orders of magnitude better than it was previously as a U device. I debated installing the VZW firmware, but decided not to, and I most definitely don't want to go through setting everything up again. However, I know have a MUCH better signal at my house, a consistent 5 bars, and a signal right around a 89-90 dB, while previously it hovered around 105-109 dB, which is pretty marginal, particularly when the antenna is only about 1/3 mile away. It also now tells me that I'm on LTE+ (rather than LTE 4g like before), so apparently this particularly tower isn't 5g yet, and I haven't left the house yet to see what I get at other locations from other towers.
However, what's really astounding is the speeds that I know get. Previously, download speeds would always start off slow at around 10 - 15 Mbs, and eventually get up to around 60 - 70 on the average, with upload speeds typically maxing out around 15 Mbs. However, now, I'm getting consistent download speeds of right at 240 Mbs (Visible limits max speed to around 250 Mbs on 5g), and upload speeds of ~70 Mbs. It's an incredible difference, so my suspicion is that I may be getting some 5g speeds, even though both Network Cell Info and LTE Discovery apps tell me that I'm generally only connected to the B2 and B5 LTE bands. Or maybe it's possible to get that kinds of speeds out of LTE with the new technology (forget what it's called) that shares bands at the same time, hence the LTE+ moniker.
Also, even though I installed the CSC file, the Service Provider Software is still ATT/TMB. To be specific, it's SAOMC_SM-G998U1_OYM_ATT_12_0026 ATT/ATT,ATT/TMB, and there isn't VZW anywhere. Maybe this will eventually update I don't know. However, it did remove the ATT startup splash screen that I had previously, so that's changed.
It also automatically downloaded and installed One UI 4.1 afterwards, so that seems to be working properly. Any thoughts on any of the above?
Thanks for the help that was provided previously.
Click to expand...
Click to collapse
As a UK user of Snapdragon that's very interesting that you get n78 c band. I am on
the G998w version and here is my dialler code *#2263# result. As you can see it has no n78 which is important in the UK. Could I see your result just to check all the bands?
Ptuk said:
As a UK user of Snapdragon that's very interesting that you get n78 c band. I am on
the G998w version and here is my dialler code *#2263# result. As you can see it has no n78 which is important in the UK. Could I see your result just to check all the bands?
Click to expand...
Click to collapse
Here you go. As you can see I have both N77 and N78 bands. What I find interesting is that it says Sim 1 is ATT, which isn't what I'm using.
Ptuk said:
As a UK user of Snapdragon that's very interesting that you get n78 c band. I am on
the G998w version and here is my dialler code *#2263# result. As you can see it has no n78 which is important in the UK. Could I see your result just to check all the bands?
Click to expand...
Click to collapse
Here you go. What's interesting is that it says Sim 1 is ATT, which isn't what I'm using.
Thank you. Yes weird the att thing. I think I will give it a crack to move to u1. Seems that the differentiation between exynos and snapdragon has fallen and that channels are no longer an impediment to using snapdragon in Europe. I also got ota update of my w phone in UK which I wasn't sure would happen.
Ptuk said:
Thank you. Yes weird the att thing. I think I will give it a crack to move to u1. Seems that the differentiation between exynos and snapdragon has fallen and that channels are no longer an impediment to using snapdragon in Europe. I also got ota update of my w phone in UK which I wasn't sure would happen.
Click to expand...
Click to collapse
Yeah, I see that you don't have any C-bands, plus you have the TMB N41 and N71 bands, which is very similar to what I had prior to the U1 flash, but lost for some reason with U1, possibly because it seems to think that it's ATT for some reason. I'd be very interested in knowing what bands you have after a U1 flash.
I'll tell you as soon as I've got the nerve to do another flash!
@Ptuk and @kmdigital , will follow your conversation as I'm needing the N78 5g band. I flashed G998W last night but no luck. Weird is that I was from U then U1 but did not have get to see the N78 band appear.
@kmdigital , can you point me out on which firmware you have installed so I can try and how you actually flashed it. Thanks. Badly needing n78.
mapl.ph said:
@Ptuk and @kmdigital , will follow your conversation as I'm needing the N78 5g band. I flashed G998W last night but no luck. Weird is that I was from U then U1 but did not have get to see the N78 band appear.
@kmdigital , can you point me out on which firmware you have installed so I can try and how you actually flashed it. Thanks. Badly needing n78.
Click to expand...
Click to collapse
Sorry to clarify....you flashed from G998w to u then u1? If so can you tell me which u1 you used...I'm wondering whether kmdigitals success is Verizon related or not
Ptuk said:
Sorry to clarify....you flashed from G998w to u then u1? If so can you tell me which u1 you used...I'm wondering whether kmdigitals success is Verizon related or not
Click to expand...
Click to collapse
I was originally on G998U then flashed to G998U1 and nothing was changed. Hoping using an universal U1 firmware I would get the N78 band but no luck.
Then, last night I flashed to G998W and lost 260 and 261. Same result no n78 band. I would like to know how @kmdigital was able to get the N78 which I badly need. On download mode my s21 ultra shows ATT at the upper part.
From G998U1UES5BVC1 to G998WVLS5BVAB. I cant recall which G998U I had prior to U1
mapl.ph said:
@Ptuk and @kmdigital , will follow your conversation as I'm needing the N78 5g band. I flashed G998W last night but no luck. Weird is that I was from U then U1 but did not have get to see the N78 band appear.
@kmdigital , can you point me out on which firmware you have installed so I can try and how you actually flashed it. Thanks. Badly needing n78.
Click to expand...
Click to collapse
Yes, I downloaded it from SamFw.com, file name Samfw.com_SM-G998U1_XAA_G998U1UES5BVC1_fac
kmdigital said:
Last night I broke down and flashed it with the U1 XAA firmware, using the CSC (not Home) file. It went well, finishing the flash in <4 minutes. Then spent the next 4+ hours reconfiguring things that aren't automatically restored by using SmartSwitch to restore. I'm not sure how that works, but it seems that it doesn't actually back up the apps, rather it just backs up the name and placeholder, so when it's restored it has to redownload every single stinking app again. Plus, I had to go through and relog into every app where this is an issue, plus because it's now called SM-G998U1, I had to delete all the old G998U devices in various places, particularly Google. What a pain... Kind of wish I'd tried the Home CSC, particularly after what I see below.
What's interesting is that I know have the N2, N5, N66, plus the N77 and N78 C-bands, (as well as N260) but I lost the T-Mobile specific bands of N41 & N71, in addition, I also lost N261. I don't care about these as I'm not in an area where the Ka millimeter wave bands matter. However, I do find it interesting that the U1 firmware removed the TMB specific 5g bands. I would have thought that the Factory U1 firmware would automatically support all US carrier bands, but I guess not.
I'm using Visible (Verizon MVNO), and while it worked "decently" before, it's now orders of magnitude better than it was previously as a U device. I debated installing the VZW firmware, but decided not to, and I most definitely don't want to go through setting everything up again. However, I know have a MUCH better signal at my house, a consistent 5 bars, and a signal right around a 89-90 dB, while previously it hovered around 105-109 dB, which is pretty marginal, particularly when the antenna is only about 1/3 mile away. It also now tells me that I'm on LTE+ (rather than LTE 4g like before), so apparently this particularly tower isn't 5g yet, and I haven't left the house yet to see what I get at other locations from other towers.
However, what's really astounding is the speeds that I know get. Previously, download speeds would always start off slow at around 10 - 15 Mbs, and eventually get up to around 60 - 70 on the average, with upload speeds typically maxing out around 15 Mbs. However, now, I'm getting consistent download speeds of right at 240 Mbs (Visible limits max speed to around 250 Mbs on 5g), and upload speeds of ~70 Mbs. It's an incredible difference, so my suspicion is that I may be getting some 5g speeds, even though both Network Cell Info and LTE Discovery apps tell me that I'm generally only connected to the B2 and B5 LTE bands. Or maybe it's possible to get that kinds of speeds out of LTE with the new technology (forget what it's called) that shares bands at the same time, hence the LTE+ moniker.
Also, even though I installed the CSC file, the Service Provider Software is still ATT/TMB. To be specific, it's SAOMC_SM-G998U1_OYM_ATT_12_0026 ATT/ATT,ATT/TMB, and there isn't VZW anywhere. Maybe this will eventually update I don't know. However, it did remove the ATT startup splash screen that I had previously, so that's changed.
It also automatically downloaded and installed One UI 4.1 afterwards, so that seems to be working properly. Any thoughts on any of the above?
Thanks for the help that was provided previously.
Click to expand...
Click to collapse
When on U1 firmware, the device will restart upon a SIM card being inserted and load the bands needed for that provider. However, I have seen with certain MVNO's it doesn't act the same as a major Carrier when on U1, meaning that it will not register properly (why it still shows ATT for csc and not VZW). It seems that the csc is ATT because it doesn't register your SIM as VZW. Try to find a VZW SIM (doesn't need service) and allow the restart, then put back in your Visible SIM. My guess is the phone will not ask for a restart and will have the Verizon bands loaded from the restart when you inserted the VZW SIM.

Question 5G not enabled by default

Hi there,
I apologize in advance if the question has already been answered. I searched but found nothing.
And I apologize for my English, I'm French Canadian.
I bought a OnePlus 10 Pro 12gb/256gb, model NE2213 last week.
Everything works fine except for 5G. I only have 4G (LTE) by default but with the 5G settings app I can select the NR option to enable 5G. Everything works fine and I can use 5G without any problems.
When I restart my cell, I again come across the 2G/3G/4G option only, no 5G.
The option seems to be there and functional but it does not seem to be activated by default.
Is there a solution for this?
Thanks a lot !!
CasseDePouelle said:
Hi there,
I apologize in advance if the question has already been answered. I searched but found nothing.
And I apologize for my English, I'm French Canadian.
I bought a OnePlus 10 Pro 12gb/256gb, model NE2213 last week.
Everything works fine except for 5G. I only have 4G (LTE) by default but with the 5G settings app I can select the NR option to enable 5G. Everything works fine and I can use 5G without any problems.
When I restart my cell, I again come across the 2G/3G/4G option only, no 5G.
The option seems to be there and functional but it does not seem to be activated by default.
Is there a solution for this?
Thanks a lot !!
Click to expand...
Click to collapse
Besides your APN there's not a huge amount you can do.
Is your phone an actual NE2213 or has it been converted?
If it's the latter then that could explain things..
Thanks for your answer!
This is an original NE2213 model purchased from a Canadian website. It was 30% cheaper than the North American model and I read on the internet that the bands were compatible with 5G.
It's not the end of the world because 5G is not really deployed here in Canada but I don't understand why I can activate it via the 5G settings app but when the device restarts it seems to be desactivate.
CasseDePouelle said:
Thanks for your answer!
This is an original NE2213 model purchased from a Canadian website. It was 30% cheaper than the North American model and I read on the internet that the bands were compatible with 5G.
It's not the end of the world because 5G is not really deployed here in Canada but I don't understand why I can activate it via the 5G settings app but when the device restarts it seems to be desactivate.
Click to expand...
Click to collapse
Oh ok, crazy, an EU device being sold from a Canadian resupplied does shout region change to me and would explain things..
Are you based in the EU?
No, I live in Canada and I'm on the Bell Mobility network which uses the n66 and n78 bands for 5G.
This website sells different cell phone models less available in Canada (OnePlus, Xiaomi, etc.) but sells Chinese or international versions.
Like I say I can live with it, 4G is as fast as 5G here for now, but I was wondering if there is a solution to enable 5G directly on boot.
Fun fact, when I set up the cell for the first time, it was showing 5G in the top right but when I was done with my setup and turned off the wi-fi it was rendering 4G and i can't choose 5G in the network options.
CasseDePouelle said:
No, I live in Canada and I'm on the Bell Mobility network which uses the n66 and n78 bands for 5G.
This website sells different cell phone models less available in Canada (OnePlus, Xiaomi, etc.) but sells Chinese or international versions.
Like I say I can live with it, 4G is as fast as 5G here for now, but I was wondering if there is a solution to enable 5G directly on boot.
Fun fact, when I set up the cell for the first time, it was showing 5G in the top right but when I was done with my setup and turned off the wi-fi it was rendering 4G and i can't choose 5G in the network options.
Click to expand...
Click to collapse
Just out of curiosity, what's your expected speeds on 5G and what are you getting on 4G..I don't use 5G on purpose. I simply don't need it as 4G gives my 250Mb +
Anyone who needs more then that needs a PC
I did a live test...
5G: 69/3 Mbps (d/u)
4G: 56/5 Mbps (d/u)
I'm at home and wifi is off.
Basicallyt, not a big difference, I'm going out today and redo a test to see if the speed is really different.
Do another test outside of my home...
4g : 61/24 Mbps
5g : 141/44 Mbps.
Big difference this time!
CasseDePouelle said:
Do another test outside of my home...
4g : 61/24 Mbps
5g : 141/44 Mbps.
Big difference this time!
Click to expand...
Click to collapse
I'd say they're both slow tbh.. in comparison to my 250 or 900Mb on ,5g
Google be your area, but I'm not sure.
Can you force it with the engineering code?
dladz said:
I'd say they're both slow tbh.. in comparison to my 250 or 900Mb on ,5g
Google be your area, but I'm not sure.
iCan you force it with the engineering code?
Click to expand...
Click to collapse
I try to go to engineering mode with different solutions i found on the web with no success.
I got a connexion problem or mmi incorrect code...
CasseDePouelle said:
I try to go to engineering mode with different solutions i found on the web with no success.
I got a connexion problem or mmi incorrect code...
Click to expand...
Click to collapse
It's a key combination from the dialer I can't remember it
I tried *#*#4636#*#* but nothing happens. I also tried ##4636## and i got the connexion problem or mmi incorrect code...
I tried to install engineering mode but i got a message..."
App not installed
The package conflicts with an existing package by the same name"
So basically i don't know what to do at this time...
I think follow the 8 pro number .
Have a Google, sorry mate I can't remember for the life of me
No problem, last question, do i need to root the cell to do this ?
CasseDePouelle said:
No problem, last question, do i need to root the cell to do this ?
Click to expand...
Click to collapse
No your do not mate. Not at all
Thanks a lot i will try again
CasseDePouelle said:
Thanks a lot i will try again
Click to expand...
Click to collapse
Good luck mate, recorded knowledge will always helps others.
Reply ever with results
Ok, to enter the EngineerMode you have to press *#899#, but i only have this printscreen when arriving in the menu, I do not see any option to modify the frequency bands.
CasseDePouelle said:
Ok, to enter the EngineerMode you have to press *#899#, but i only have this printscreen when arriving in the menu, I do not see any option to modify the frequency bands.
Click to expand...
Click to collapse
Bottom option id say

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