Database Users

Note 3 Rubbish Signal... wrong modem? help needed

Hi, I bought my note 3 in UAE and I am using it in the UK. I am on Vodafone. I always get rubbish signal in my house. It is on "emergency calls only" nearly all the time. Also the LTE/4G has NEVER worked since I got it on launch (Sep). Whenever I turn the 4G on the H+ sign never comes up. Some people may argue that Vodafone is a rubbish network. I agree too but I think I may need to flash a different modem? My model is a SM-9005. Do I need to flash a different modem to get the 4G to work? Thanks

hayat55 said:
Hi, I bought my note 3 in UAE and I am using it in the UK. I am on Vodafone. I always get rubbish signal in my house. It is on "emergency calls only" nearly all the time. Also the LTE/4G has NEVER worked since I got it on launch (Sep). Whenever I turn the 4G on the H+ sign never comes up. Some people may argue that Vodafone is a rubbish network. I agree too but I think I may need to flash a different modem? My model is a SM-9005. Do I need to flash a different modem to get the 4G to work? Thanks
Click to expand...
Click to collapse
You can actually try a different ROM or maybe a custom ROM? At the same time, reception might just be poor in your house. So you might need to make do with regular 3G or EDGE. I no for a fact that in my friend's house i ALWAYS have to switch to 2G because 3G reception is never available, I have SM-N900 tho.

stanley08 said:
You can actually try a different ROM or maybe a custom ROM? At the same time, reception might just be poor in your house. So you might need to make do with regular 3G or EDGE. I no for a fact that in my friend's house i ALWAYS have to switch to 2G because 3G reception is never available, I have SM-N900 tho.
Click to expand...
Click to collapse
I know but when I do have good reception the 4G never works even outside as well
Sent from my SM-N9005 using Tapatalk

hayat55 said:
I know but when I do have good reception the 4G never works even outside as well
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
And how about when you set it to HSPA only?

UAE's LTE bands won't work with Vodafone.
Sent from my CM11 Kitkat powered N9005

radicalisto said:
UAE's LTE bands won't work with Vodafone.
Sent from my CM11 Kitkat powered N9005
Click to expand...
Click to collapse
what if i flash a different rom/modem?
I just checked and vodafone operates 4G/LTE at 800MHz. On the samsung uae website it says that the note 3 supports 800MHz 4G/LTE

ROM's won't make a difference as it's the hardware on the device itself.

I also noticed the note 3 doesnt have a superb signal reception... For example in my house my moms s3 and dads s4 have full bars where i on my note have one bar less than they do. Little dissapointed

metko said:
I also noticed the note 3 doesnt have a superb signal reception... For example in my house my moms s3 and dads s4 have full bars where i on my note have one bar less than they do. Little dissapointed
Click to expand...
Click to collapse
Check phone status in settings and compare it with the S3 and S4 - you'll see it's just the bar's that show different the dBm's are what counts. You'll see it'll be identical to the S3/4

radicalisto said:
Check phone status in settings and compare it with the S3 and S4 - you'll see it's just the bar's that show different the dBm's are what counts. You'll see it'll be identical to the S3/4
Click to expand...
Click to collapse
Good point didnt thought of that

I have the same uae version in Kuwait and also had 1 signal bar at home. Flashed Polish KK after root and now I get 3 bats at all times.

Tarzan- said:
I have the same uae version in Kuwait and also had 1 signal bar at home. Flashed Polish KK after root and now I get 3 bats at all times.
Click to expand...
Click to collapse
Didn't that trip knox?

Bump... can anyone help me on which modem i need to flash? I checked and the UAE note 3 supports my UK carrier LTE band. Apart from this I always get crap signal.

hayat55 said:
Didn't that trip knox?
Click to expand...
Click to collapse
Flashing official firmware won't trip knox
hayat55 said:
Bump... can anyone help me on which modem i need to flash? I checked and the UAE note 3 supports my UK carrier LTE band. Apart from this I always get crap signal.
Click to expand...
Click to collapse
The device itself has the bands. But you cannot access them by changing the modem. The N9005 supports many many bands but different MPN Codes on each device limit it to specific countries.
It's all a legal thing. Radio frequencies are controlled, unless the UAE version supports the exact same frequency that your UK carrier runs on it won't work. Upgrade to kitkat and test it.
Sent from my CM11 Kitkat powered N9005

Tarzan- said:
I have the same uae version in Kuwait and also had 1 signal bar at home. Flashed Polish KK after root and now I get 3 bats at all times.
Click to expand...
Click to collapse
I did say after root. So yes Knox tripped but I don't care.

help me please share that modem
N9005XXUGBOD3

Note 4 exynos LTE problem

does anyone have this problem? i have a friend in the same room with lg g3 on his hand connected with the 4g lte. i have my note 4 with lte capable sim but i got only h+. i really hate this feeling that the g3 beats my note 4 in connectivity issues.. any help will be much appreciated. btw im from philippines and my carrier is smart. tia.

I thought the Exynos CPU wasn't LTE capable? I thought that's the whole reason why the US (which is where I live and LTE is abundant and a big selling point) variant's all use the Snapdragon CPU.
If I'm right, then your phone can't use LTE because it doesn't have the proper hardware. It wouldn't matter if you put in a sim capable of LTE. It would be like having a WiFi router that's capable of a/b/g/n/ac and trying to use a phone only capable of seeing a/b/g signals. The router (the cell tower) would be putting out all signals, yet the phone would not be able to see the n or ac signals.
Another thing is that you may need to have your provider register the phone's IMEI. I had this happen with my old phone, which was LTE capable, but it only got H+. Turns out that the ATT guy didn't register the IMEI, so ATT thought I was still using the phone prior, which was an S2 and wasn't LTE capable. The was basically a cap on the account preventing me from getting lte.

no sir.. Exynos variants are also LTE capable.. I have my LTE in some open roads when i ride the bus.. but my confusion is that my friend and i was in the same room but he has lte in his g3 (he also have the ip5s but sell it which also have lte in that room) while my note 4 only reached the h+.. it hurts actually.

Well I am on 910C, and I have a pretty good coverage in 4G. I didn't notice any difference when I transit from my Note 2 to Note 4, it is the same reception I have been getting..

well, its hard to accept things in here but I think I cant do anything about it. Thanks btw.

rexxar31 said:
no sir.. Exynos variants are also LTE capable.. I have my LTE in some open roads when i ride the bus.. but my confusion is that my friend and i was in the same room but he has lte in his g3 (he also have the ip5s but sell it which also have lte in that room) while my note 4 only reached the h+.. it hurts actually.
Click to expand...
Click to collapse
Oh ok. I misunderstood your initial post and I thought I read somewhere that the Exynos version couldn't work with lte.
Stupid question, but are you both on the same carrier? If so then I have no clue why one phone would get lte and the other not. Unless the G3 has a better antenna or something.
---------- Post added at 04:58 AM ---------- Previous post was at 04:57 AM ----------
rexxar31 said:
well, its hard to accept things in here but I think I cant do anything about it. Thanks btw.
Click to expand...
Click to collapse
May be the only thing to do unfortunately lol

spexwood said:
Oh ok. I misunderstood your initial post and I thought I read somewhere that the Exynos version couldn't work with lte.
Stupid question, but are you both on the same carrier? If so then I have no clue why one phone would get lte and the other not. Unless the G3 has a better antenna or something.
Click to expand...
Click to collapse
Yes we have the same carrier which is SMART. All the difference I know is that his sim came from a smart plan while mine does not. I just bought it from a smart store. I think it wasn't the problem anyway but i cant think of any differences. He has iphone5s before he got the g3 and also got 4g in that room.

I got the same problem as you, and Samsung confirmed that my device has radio defects. And soon I will get the replacement.

FUXAS said:
I got the same problem as you, and Samsung confirmed that my device has radio defects. And soon I will get the replacement.
Click to expand...
Click to collapse
Maybe I should go to my carrier because it is a part of my carrier plan. Thanks.

i check my friend's signal and i found out that it has -93dbm and 49asu and having lte(his phone was an lg g3) and mine has -63dbm and 25asu (galaxy note 4) but doesnt have lte. which signal is better? i dont have any idea in here.. thanks.

rexxar31 said:
i check my friend's signal and i found out that it has -93dbm and 49asu and having lte(his phone was an lg g3) and mine has -63dbm and 25asu (galaxy note 4) but doesnt have lte. which signal is better? i dont have any idea in here.. thanks.
Click to expand...
Click to collapse
If possible swap sim card with your friends sim card, easiest way to isolate problem.

i never tried to swap sim card with him but i already tried another LTE sim card but the result is the same. did you think my note has a problem.? im going to attach pictures. mine is the ss and the picture from camera is the g3. we are in the same room as well.

Can you post this two screen shot,this is mine.

no problem. this is mine. I already checked if the LTE is enabled but got no luck. :crying:

Buddy, I sent you a pm.

Your device is defect, i've returned a 910C with a problem like this, no calls possible in 4g3g2g and 3g2g auto mode, extremely unstable lte and umts data connection, etc. unusable. They swapped the motherboard, i think, because of a better asv group for cpu now and a resetted knox and custom counter. IMEI is still the same. Well, now everything works, i've stable lte and umts and i calls work.

pappschlumpf said:
Your device is defect, i've returned a 910C with a problem like this, no calls possible in 4g3g2g and 3g2g auto mode, extremely unstable lte and umts data connection, etc. unusable. They swapped the motherboard, i think, because of a better asv group for cpu now and a resetted knox and custom counter. IMEI is still the same. Well, now everything works, i've stable lte and umts and i calls work.
Click to expand...
Click to collapse
i am really going to report this to them because it gives me too much inconvenience.

How is the Reception on T-Mobile for people who bought the unlocked SM-G935F version

Any issues with the Unlocked version in using it to T-Mobile?

[EDITED for accuracy] Yes - weaker signal on T-Mobile than the S5, with the unlocked international SM-G935FD (dual SIM). This might be due to the metal body around the antenna, or weaker modem.

Dandv, you are an idiot. Quit giving people false information. Your phone does get lte. You have an international version. Just because your phone says 4g doesn't mean your not getting lte. Everyone but the US labels lte as 4g. What the label says in the top right corner of your phone has no bearing on what you are getting as far as the international version goes. Here's how it breaks down international to us version. LTE=4G on international version. H+=What T-mobile calls 4G. H=3G and so on. It's just labeling and has nothing to do with what you are actually getting. If you don't believe me you can switch the network in the settings from lte to 4g and it will change the symbol from 4g to h+. Now, your signal is a whole different issue. A-the modem that came with your phone might not be optimized for T-mobile but you can find a different modem to try and flash via Odin. B-the phone supports all bands from every region. And C-the modem in the s7 might be weaker than the s5. My modem in my s6 is weaker and it's because of the metal body. This is very well known and could be found out if you did some research. Everything that I am telling you can be Googled if you don't believe me. This is suppose to be a helpful forum for people with questions so please stop giving false information.

miller1821 said:
Dandv, you are an idiot. Quit giving people false information. Your phone does get lte. You have an international version. Just because your phone says 4g doesn't mean your not getting lte. Everyone but the US labels lte as 4g. What the label says in the top right corner of your phone has no bearing on what you are getting as far as the international version goes. Here's how it breaks down international to us version. LTE=4G on international version. H+=What T-mobile calls 4G. H=3G and so on. It's just labeling and has nothing to do with what you are actually getting. If you don't believe me you can switch the network in the settings from lte to 4g and it will change the symbol from 4g to h+. Now, your signal is a whole different issue. A-the modem that came with your phone might not be optimized for T-mobile but you can find a different modem to try and flash via Odin. B-the phone supports all bands from every region. And C-the modem in the s7 might be weaker than the s5. My modem in my s6 is weaker and it's because of the metal body. This is very well known and could be found out if you did some research. Everything that I am telling you can be Googled if you don't believe me. This is suppose to be a helpful forum for people with questions so please stop giving false information.
Click to expand...
Click to collapse
I know it's not what was asked. but ZERO issues on ATT network with 935F.

In some regions they dont name it LTE, its Just 4G or 4G+. so if it displays 4G then you are on LTE

Any comments on International vs. T-Mobile version as far as everyday use and performance on T-Mobile? I'm trying to decide which version I should get. I like the absence of bloatware, etc. on International version (though T-mobile probably has the least of the big 4 carriers), and possibly better/more frequent (?) updates.

GeodudeFFP said:
Any comments on International vs. T-Mobile version as far as everyday use and performance on T-Mobile? I'm trying to decide which version I should get. I like the absence of bloatware, etc. on International version (though T-mobile probably has the least of the big 4 carriers), and possibly better/more frequent (?) updates.
Click to expand...
Click to collapse
The international version doesn't completely lack bloatware. My G935FD has a bunch of apps that you can't remove (unless you root the phone): S Planner (a calendar, which keeps begging for permission to display notifications, via another notification!), MS suite (Word, Excel, PowerPoint, OneNote, OneDrive, Skype), Samsung's browser (Chrome is already installed), an Email client, Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.

I got the Dual sim version using it in hawaii and everything seems fine for me, no changes from my tmobile note 5.

dandv said:
The international version doesn't completely lack bloatware. My G935FD has a bunch of apps that you can't remove (unless you root the phone): S Planner (a calendar, which keeps begging for permission to display notifications, via another notification!), MS suite (Word, Excel, PowerPoint, OneNote, OneDrive, Skype), Samsung's browser (Chrome is already installed), an Email client, Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.
Click to expand...
Click to collapse
That's not really bloatware at least like it is in the US, but I know what you mean.
Sent Via My Samsung S7 Edge

dandv said:
The international version doesn't completely lack bloatware. My G935FD has a bunch of apps that you can't remove (unless you root the phone): S Planner (a calendar, which keeps begging for permission to display notifications, via another notification!), MS suite (Word, Excel, PowerPoint, OneNote, OneDrive, Skype), Samsung's browser (Chrome is already installed), an Email client, Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.
Click to expand...
Click to collapse
Agreed, that's a lot of junk I don't need, but at least it's without the carrier bloatware.
How about real-world performance...any differences I would notice (i.e., the pros/cons)?

GeodudeFFP said:
Agreed, that's a lot of junk I don't need, but at least it's without the carrier bloatware.
How about real-world performance...any differences I would notice (i.e., the pros/cons)?
Click to expand...
Click to collapse
exynos are better than SD820 in term of dev and battery live

DUOS on T-Mobile
I just received my DUOS today. Ijbterms of reception, seems about half as weak a signal as from my s6 edge I upgraded from.
My major concern is the 4G vs LTE connectivity. I understand how most of the world dubs LTE as 4G, however my worry is not what tiny icon displays in the corner of the screen, its the performance...
My s6-edge was getting the "LTE" speeds of 15mb/s down but now I'm currently faced with speeds 70% slower.
I've checked in settings under Sim manager and mobile networks, but can't seem to change anything.
I know there was mention of finding the right modem firmware to flash onto the phone depending on region of use, can anyone advise me what I might try switching it to?

DJ.A-BOMG said:
I just received my DUOS today. Ijbterms of reception, seems about half as weak a signal as from my s6 edge I upgraded from.
My major concern is the 4G vs LTE connectivity. I understand how most of the world dubs LTE as 4G, however my worry is not what tiny icon displays in the corner of the screen, its the performance...
My s6-edge was getting the "LTE" speeds of 15mb/s down but now I'm currently faced with speeds 70% slower.
I've checked in settings under Sim manager and mobile networks, but can't seem to change anything.
I know there was mention of finding the right modem firmware to flash onto the phone depending on region of use, can anyone advise me what I might try switching it to?
Click to expand...
Click to collapse
What do you have when you dial *#0011# ?

Hi, any luck getting band 12 to work?

Also if you guys can recommend a good app/way to mesure reception strentgh I have both a 935F and 935T running on T-mobile so I can measure speeds if needed - in my apartment (in NYC) I seem to be getting less signal on the international than on the Tmo (1-2 bars vs 4), but call quality is fine.

Remix22 said:
Hi, any luck getting band 12 to work?
Click to expand...
Click to collapse
The phone has band 12 but it won't connect to it with tmobile. It needs tmobile specific files which the international rom doesn't have which is bs.
Sent from my SM-G935F using Tapatalk
---------- Post added at 12:14 PM ---------- Previous post was at 12:11 PM ----------
Remix22 said:
Also if you guys can recommend a good app/way to mesure reception strentgh I have both a 935F and 935T running on T-mobile so I can measure speeds if needed - in my apartment (in NYC) I seem to be getting less signal on the international than on the Tmo (1-2 bars vs 4), but call quality is fine.
Click to expand...
Click to collapse
There are plenty of signal in the play store. But don't be tricked by bars. Tmobile plays around with bars and dB values. The international version keeps it real. It'll tell you the truest bar value in my opinion. With tmobile, where most phoned would show 2 bars, tmobile will show 3-5 bars on their phone, making you think you have excellent service everywhere
Sent from my SM-G935F using Tapatalk

dandv said:
Facebook app that you can't remove if you want to use Metal instead, Samsung Gear (even if you don't have any Gear devices, you can't uninstall it) etc. There are lots of threads on debloating the S7.
Click to expand...
Click to collapse
Well, I managed to get Facebook off my phone and I'm not rooted
Sent from my SM-G930F using XDA-Developers mobile app

SD here on tmo, no issues. Better reception than on my iphone 6 plus on tmo.

ssgunner20 said:
SD here on tmo, no issues. Better reception than on my iphone 6 plus on tmo.
Click to expand...
Click to collapse
hi, I just got the 935f and still have a 935t, I compared signal reception and strength between the two, see my post in the t-mobile section, oh and I get LTE over band 12. One funny thing is that the 935F seems to connect to different towers than the t-mobile one I have no idea why... http://forum.xda-developers.com/showpost.php?p=66740184&postcount=47

So I have the 935f and here's some things I'm seeing. It does have band 12, though no Volte. When I do *#0011# it shows the phone as being in band 12. Now here's the thing, in band 12 on T-Mobile the speed is nowhere near the speed of Band 4, but the phone seems to want to stay in Band 12. I've used a "connection stabilizer" app and it does seem to "bump" the phone into Band 4. I'm no expert on this stuff, but this is my personal experience as the phone is "stuck" in band 12 otherwise. I'm just north of Detroit, and here are my speedtest results in my house. Keep in mind I have never had good reception in my home, 2-3 bars max.
On 2 bars at time of test in my house
Band 12 down 1.71 Mbps up .12 Mbps
Band 4 with app on down 18.90 Mbps up .19 Mbps
Does someone know a better fix for this than an app, it works but it's a major battery drain .

S7 edge 935FD mobile data issues on t-mobile

I got the S7 edge 935FD on t-mobile , I am running Superman room. I noticed that sometimes having full bars of LTE , my connection is really slow I check it with Speed Test and it is under 0.3 Mb. I installed the recommended Modem and Bootloader, and I also try with different CSCs , like XEF,XSG and XSA. At some places with 2 or 3 bars I got 60Mb with speed test , and in others that my old phone get 18Mb , I got 0.2Mb , and my connection is too slow. I tried also other rooms and I am getting similar results. What I am missing?, Could be my phone?, Is this happening to the S7 international versions in the US?
Thank you

APN Setting is not right?

Player04 said:
APN Setting is not right?
Click to expand...
Click to collapse
Definitely APN settings are right, I checked in tmobile website and I also call them to be 100% sure.
Thanks

I am thinking buy 935fd.That is what I afraid. I saw some forum say some 935fd problem with network speed.
Sent from my HUAWEI NXT-L29 using XDA-Developers mobile app

considering
I am trying to decide if I want the 935FD, but am also worried about data speeds in US. does anyone have any newer recommendations?

Voluntario said:
I got the S7 edge 935FD on t-mobile , I am running Superman room. I noticed that sometimes having full bars of LTE , my connection is really slow I check it with Speed Test and it is under 0.3 Mb. I installed the recommended Modem and Bootloader, and I also try with different CSCs , like XEF,XSG and XSA. At some places with 2 or 3 bars I got 60Mb with speed test , and in others that my old phone get 18Mb , I got 0.2Mb , and my connection is too slow. I tried also other rooms and I am getting similar results. What I am missing?, Could be my phone?, Is this happening to the S7 international versions in the US?
Thank you
Click to expand...
Click to collapse
What band is being used when you connect to LTE?
Dial *#0011# when you're on LTE and click STACK 1 if it's in the first SIM slot, and STACK 2 if it's in the second one.
It'll show you Band information.
Secondly, it could also be because of the carrier aggregation stuff, maybe the Exynos variant of the S7E isn't compatible with T-Mobile's Carrier Aggregated LTE network and hence only uses one band for LTE, which will result in poor speeds for the user.

Exynos on AT&T or T mobile

Does anybody use the exynos varient on AT&T or T-Mobile? I'm wondering if you get good service. I'm currently using an exynos S8+ on AT&T without any problems.

i had s9 duos exynos on att. excellent reception. im located in Boston.
Download speedtest to check your data/wifi speed

Thank you for the information. I looked up the S9 exinos on frequencycheck.com. It supports 3 out of the 4 4g bands on AT&T. According to the website the s10 exynos only supports 2 out of 4. So that doesn't help too much but I never thought about checking the s9 since I know it works well.

Works great for me. I got an Exynos from Australia when my phone died. Checked the bands for SM-G975F, and it has all the T-Mobile LTE bands EXCEPT band 71. So you will be good unless you go into rural USA.
Only thing I don't get is Carrier Aggregation. I have wifi calling and VOLTE..

Thank you for the info. After looking up that model it should work fine on both networks. That website I was using has wrong info on some of the models. I think I will buy the SM-G975F.

Wayneman101 said:
Thank you for the info. After looking up that model it should work fine on both networks. That website I was using has wrong info on some of the models. I think I will buy the SM-G975F.
Click to expand...
Click to collapse
I also have the G975 F(BTU - United Kingdom) I live in Milwaukee on ATT Network. I get great LTE Speeds - the only thing I don't get is Wifi Calling and ATT Video Calling - ATT only supports their phones for those features - at least until there is a custom CSC that we can flash (like someone did for the Note 9, S8Plus, etc)

Do you have VoLTE at least on AT&T with the exynos?

Geekser said:
I also have the G975 F(BTU - United Kingdom) I live in Milwaukee on ATT Network. I get great LTE Speeds - the only thing I don't get is Wifi Calling and ATT Video Calling - ATT only supports their phones for those features - at least until there is a custom CSC that we can flash (like someone did for the Note 9, S8Plus, etc)
Click to expand...
Click to collapse
Thank you for the info. I want to keep AT&T but I would switch to T-Mobile to get the exynos variant if needed. But I'm glad I can keep my service. I had the original IPhone and I'm grandfathered in to the original unlimited data plan. I didn't even know AT&T offered wifi calling. Before my exynos s8+ I had a note 4 and for about a year my moms extra free IPhone 6. It wasn't an option back then. I don't really care about WiFi calling though. I get good service where it matters most. I can't wait for S10+ Roms!

nismoxr34 said:
Works great for me. I got an Exynos from Australia when my phone died. Checked the bands for SM-G975F, and it has all the T-Mobile LTE bands EXCEPT band 71. So you will be good unless you go into rural USA.
Only thing I don't get is Carrier Aggregation. I have wifi calling and VOLTE..
Click to expand...
Click to collapse
I get limited carrier aggregation on my Exynos S10+ on T-mobile which helps a little. It still lacks the full CA support tho.

VICosPhi said:
I get limited carrier aggregation on my Exynos S10+ on T-mobile which helps a little. It still lacks the full CA support tho.
Click to expand...
Click to collapse
How do you check that? I check on my service menu and it says CA:None
I do see that I am sometimes connected to three of the same band at the same time.

nismoxr34 said:
How do you check that? I check on my service menu and it says CA:None
I do see that I am sometimes connected to three of the same band at the same time.
Click to expand...
Click to collapse
First you download a file or run speed test using speed test app, then at the same time dial *#0011# and select SIM slot it'll say CA added or CA active. This means you're getting some form of aggregation
Sent from my SM-G975F using Tapatalk

VICosPhi said:
First you download a file or run speed test using speed test app, then at the same time dial *#0011# and select SIM slot it'll say CA added or CA active. This means you're getting some form of aggregation
Sent from my SM-G975F using Tapatalk
Click to expand...
Click to collapse
That's what I've been doing, but I don't see CA added or active. I wonder why mine doesn't even have CA on. Just CA none.

nismoxr34 said:
That's what I've been doing, but I don't see CA added or active. I wonder why mine doesn't even have CA on. Just CA none.
Click to expand...
Click to collapse
And you have the Exynos version correct? Try it in a different area away from your home and see if it activates. If nothing works, factory reset may help.
Sent from my SM-G975F using Tapatalk

VICosPhi said:
And you have the Exynos version correct? Try it in a different area away from your home and see if it activates. If nothing works, factory reset may help.
Sent from my SM-G975F using Tapatalk
Click to expand...
Click to collapse
I am on Exynos, wouldn't have this problem with the SD version (I'd hope). I have factory reset a few times, but never see the CA as activated. I'll check from time to time, but also away from my house it doesn't show that CA is activated. Might be the XSF (australian) version that doesn't aggregate the t-mobile bands.

nismoxr34 said:
I am on Exynos, wouldn't have this problem with the SD version (I'd hope). I have factory reset a few times, but never see the CA as activated. I'll check from time to time, but also away from my house it doesn't show that CA is activated. Might be the XSF (australian) version that doesn't aggregate the t-mobile bands.
Click to expand...
Click to collapse
That could be it. I'm using TPA CSC and some other people on that CSC confirmed carrier aggregation working on T-mobile.
Snapdragon (Chinese or Hong Kong variant) does not support carrier aggregation in T-mobile from what a user posted.
Sent from my SM-G975F using Tapatalk

VICosPhi said:
That could be it. I'm using TPA CSC and some other people on that CSC confirmed carrier aggregation working on T-mobile.
Snapdragon (Chinese or Hong Kong variant) does not support carrier aggregation in T-mobile from what a user posted.
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Do you have a link to the post where it is CA is confirmed on TMO?

For which model the Chinese Snapdragon?
CA is working for me on Exynos. It is not the same as US Snapdragon CA but still better than no CA at all
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Do you need to flash a CSC and/or modem from a US carrier onto an exynos international phone to get VoWIFI, CA, VoLTE, etc? Or does it "just work?" If you need a special CSC do you just pull HOME_CSC out of a US carrier's firmware and flash it with odin or something?

epv said:
Do you need to flash a CSC and/or modem from a US carrier onto an exynos international phone to get VoWIFI, CA, VoLTE, etc? Or does it "just work?" If you need a special CSC do you just pull HOME_CSC out of a US carrier's firmware and flash it with odin or something?
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Hi
You should not flash any firmware from a Snapdragon into a Exynos..... You may not be able to get some of the service provider options using the Exynos firmware, i guess is a try and see situation, but one thing is for sure do not flash a Snapdragon firmware into an Exynos.
Everything else should work , modem is ready for all frequencies but CDMA

in case anyone comes looking, i've tried it on an exynos G973F with XSG csc (one of the OXM multi ones) just because that's what was on the phone.
VoLTE seems to be working on T-Mobile in the US without any messing around, based on the "HD" icon appearing during voice calls. Voice over WiFi seems to also work.
The phone is dual SIM with a TMO sim and an ATT sim. It doesn't get VoLTE on ATT, but I believe that's probably because AT&T only allows it on approved devices.