T989 out of USA issues: good signal but no network access - T-Mobile Samsung Galaxy S II SGH-T989

I have this T989 unlocked and beeing used with local SIM in Central America, maybe the modem/radio is not full compatible with the local network because in a Building I can get 3 or 4 signal bars but when I send a SMS I get "SMS not send" message, and get "No Network Service" when trying a voice call, why is there 3-4 signal bars without Network Available? Phone come back to normal when I go to an open field. Maybe the T989 Modem/Radio is not as full compatibleas I9100 (international model) modem/Radio? May I flash I9100 Modem/Radio into T989?

First, if you flash that radio you could brick. Do not flash anything not made for your device.
If you're on Jelly Bean, or a higher custom rom version, only the latest T-Mobile or Telus radios will work. Nothing else.
Is likely that your apn settings are wrong or missing. You'll have to Google what your carrier apn settings are and check in mobile network settings.
Also, if your carrier bands aren't supported by the t989, there's nothing you can do... It won't work.
View my profile, I dare you. ?
---------- Post added at 08:54 PM ---------- Previous post was at 08:53 PM ----------
And seeing "bars" is normal.... I have no Sim in mine and get bars.
View my profile, I dare you. ?

KJ said:
First, if you flash that radio you could brick. Do not flash anything not made for your device.
If you're on Jelly Bean, or a higher custom rom version, only the latest T-Mobile or Telus radios will work. Nothing else.
Is likely that your apn settings are wrong or missing. You'll have to Google what your carrier apn settings are and check in mobile network settings.
Also, if your carrier bands aren't supported by the t989, there's nothing you can do... It won't work.
View my profile, I dare you. ?
---------- Post added at 08:54 PM ---------- Previous post was at 08:53 PM ----------
And seeing "bars" is normal.... I have no Sim in mine and get bars.
View my profile, I dare you. ?
Click to expand...
Click to collapse
Yep, I have no sim and see those " signal bars" all the time. I believe T-Mobile told me it was for 911 signal or something.
Sent from my SGH-T989

OK, T989 will only work with modem for T989.
Thank you both!

Related

Sprint L710 --> Verizon prepaid

So finally got it worked on Verizon prepaid. Can say it works perfect, perhaps first day, 3G works well.
In that case I have a few questons.
If I flash new Kernel, will it affect on my Verizon service at sprint's L710?
In total what I MUST NOT flash to keep Verizon working on my phone?
How dis you flash it to verizon prepaid?
Same way like to Boost or others with donored Verizon ESN it works well.
As for Tutorial, I'm not a specialist in that question but can help to write it if there are few sources.
Assuming it's like every other flashed service providers, flashing roms and kernels will not affect anything except maybe your ability to send mms. Just don't do a ##786# factory reset using a touchwiz rom because that will clear out your MDN/MSID and AAA Hex keys.
There's no way I'd be on Verizon for their 3g.
beserker15 said:
Assuming it's like every other flashed service providers, flashing roms and kernels will not affect anything except maybe your ability to send mms. Just don't do a ##786# factory reset using a touchwiz rom because that will clear out your MDN/MSID and AAA Hex keys.
Click to expand...
Click to collapse
Thanks a lot, MMS is the least of what I'm worried.
Ascertion said:
There's no way I'd be on Verizon for their 3g.
Click to expand...
Click to collapse
bon courage !
-------------------
Voyage en Vietnam-Voyage au Vietnam-Jonque Classic sails Halong
can you point me in the right direction to get verizon settings? i have the software just need the correct settings for data and prl. thanks
blackhand901 said:
can you point me in the right direction to get verizon settings? i have the software just need the correct settings for data and prl. thanks
Click to expand...
Click to collapse
no problem
just tell me how can i get it? what software I need?
i have qpst 2.7 b 378;
qxdm 03.12.714
dfs 4.0.0.4
can't figure out how to connect phone to it.. put phone to debugging, and soft doesn't recognize it
You should try dfs. It connects to the gs3. I'm) poking for the settings to change. Sort of a step by step. There are plenty for cricket and boost. Just in can't find any for Verizon. I'm sure the steps are similar in just need the specific strings to put in.
Sent from my galaxy s3
Yes it connects.
Well, if you tell me where to look into DFS i'll provide you settings that you need.
In dfs look in Ports->diagnostic
I'm not sure we can post this stuff on xda. I know the guides have been deleted before.
Sent from my galaxy s3
---------- Post added at 04:26 PM ---------- Previous post was at 04:23 PM ----------
I need the info from the data tab
Sent from my galaxy s3
Thanks got it.
PAP
UID
[email protected]
PPP
SIP NAI
[email protected]
UID
[email protected]
PWD
??5(?|:3???z?
HDR AN
UID
[email protected]
HDR AN LONG
UID
[email protected]
But in ##data#
Primary HA IP
255.255.255.255
Secondary
68.28.113.76
EVDO
DDTM OFF (should it put it on?)
at others
MMSC
mms.sprintpcs.com (do not know what to put for verizon)
DSS
sprint server
seems like that guy made just half of his job
Can you check your pm?
Sent from my galaxy s3
Sorry, didn't see.
Well yesterday everything was good on 3g, but when I flashed CM10 I lost data connection, now I come back to stock but there is still some issues with data and Sprint icon appearing, sometimes I get 67 Error Registration to sprint failure.
I checked ##data, there is a lot of settings belong to Sprint. Also now i noticed that 3g speed too slow, i tried speedtest and got 120 down/150 up via speedtest, its not what I got yesterday before CM10. Also phone sometimes looses connection. Think something went wrong while I flashed CM10 or that guy didnt set all proper settings.
Averything txt/call/data work, but some issues I still have to solve...
Does somebody have some info what alse to change in settings?
Ill just stick to Speint instead of going thru all of that trouble to get prepaid.
Headed to get a gusto donor phone. Did you get the 3g worked out?
Sent from my galaxy s3
---------- Post added at 04:05 PM ---------- Previous post was at 04:00 PM ----------
Silly question...do I activate the donor phone prior to starting?
Sent from my galaxy s3
DroidBabe said:
Ill just stick to Speint instead of going thru all of that trouble to get prepaid.
Click to expand...
Click to collapse
I flashed my Epic Touch to Virgin and now I pay $55 instead of $110 and get same service because Virgin is owned by Sprint and uses same towers
blackhand901 said:
Headed to get a gusto donor phone. Did you get the 3g worked out?
Sent from my galaxy s3
---------- Post added at 04:05 PM ---------- Previous post was at 04:00 PM ----------
Silly question...do I activate the donor phone prior to starting?
Sent from my galaxy s3
Click to expand...
Click to collapse
No I did not. Cause I have no AAA/HA codes.
Also I can't flash zeros to SPC that's why I have no possibility to flash it over the air to Verizon.
No luck so far. I have done everything but i have the roaming sign. I cant make a call or text. Can you maybe post a screenshot of your tabs in dfs? I figure that would be easier than typing your values. When i try to make a call i get the verizon operator only. Im did not flash a verizon radio or anything. Not sure if thay matters.

Rogers Galaxy S3 - No more LTE w/ Stock ROM?

Hi everyone,
So, I've got an interesting issue, and I realize that it is likely my fault. I was flashing various ROM's (CM10, CM9 etc) on the phone, and eventually when I put the stock ROM back on, I was only able to connect on "EDGE". I called Rogers and they said my account checked out. So, I did more ttroubleshooting, and in that I noticed that my IMEI was set to "0". So, I found a guide on here to re-add the IMEI using QPST and I was able to get back on 3G, but no 4G/LTE. After rebooting and some time passed, I am now on 4G, but no LTE and this is my issue. Before you say 4G is LTE, I tend to want to disagree. I used to get LTE, and I did see it pop up once since I fixed the phone, but the phone crashed and i wasn't able to test it with LTE running. Since then, I haven't seen it again. I also ran the "Phone Info" app, and if I set it to LTE only, I never get a data connection, even after rebooting, pulling battery etc.
Why I think 4G is not LTE is because when I ran speedtests before I broke my phone, I was getting 28MB down, and 8-10MB up. now, I'm lucky if I'm getting 1MB down and .2MB up. I have once gotten 4MB down, and .8MB up, but this is WELL below LTE speeds that I've had in the past.
I'm hoping someone might be able to help me get back to a 100% clean, stock ROM, modem, firmware etc. I have installed 2 different stock ROM's that I found for the Rogers i747m; one is ~700MB, the other is 1.2GB. Both have the same issue with 4G only. I've also flashed the stock Rogers modem, and still no luck.
Any help would be appreciated, but here are some specific questions if you can help.
Does anyone have screenshots of their stock "about" page, and the "status" page in the phone menu?
Does anyone have a bone stock "complete" firmware/ROM for the Rogers i747?
Is there anything I can do to fix this on my current ROM (stock)?
Thank you!
Here are the threads I've reviewed and followed to try and resolve the issue.
http://forum.xda-developers.com/showthread.php?t=1747200
http://galaxys3root.com/galaxy-s3-unroot/how-to-unroot-canadian-galaxy-s3-sgh-i747m-stock-roms/ (using the Rogers ROM)
http://forum.xda-developers.com/showthread.php?p=29462530#post29462530 (To restore IMEI)
Well I know you are right about one thing when it says 4g it's not the same as LTE mine says LTE when it's on LTE. I'm on Telus though. I have seen others in Canada with this issue after restoring the IMEI, maybe you should check that thread to see if there are any solutions.
Halmo said:
Well I know you are right about one thing when it says 4g it's not the same as LTE mine says LTE when it's on LTE. I'm on Telus though. I have seen others in Canada with this issue after restoring the IMEI, maybe you should check that thread to see if there are any solutions.
Click to expand...
Click to collapse
I ran through every post in that thread, but still no LTE. Man this is driving me crazy. I'll pay someone if they can help me get LTE back... I've already restored the QCN info using the QCN creator posted in one of the threads.
What do you have for your APN settings?
Motokorth said:
What do you have for your APN settings?
Click to expand...
Click to collapse
Thanks for replying. The apn settings are correct, ltemobile.son and the tethering one. This was one of the first things I checked. I'll add screenshots tomorrow if it's helpful
Thanks!
Interesting...got on LTE randomly...well sort-of
SkydiverChris said:
Thanks for replying. The apn settings are correct, ltemobile.son and the tethering one. This was one of the first things I checked. I'll add screenshots tomorrow if it's helpful
Thanks!
Click to expand...
Click to collapse
So, here's something a bit more interesting. Just before bed last night, I caught my phone on the LTE network. I tried loading a few pages/apps, but nothing was working. AFter about a minute, I lost all data connection and it popped back up about 10 seconds later back on 4G and was working again. Not sure if this helps anything, but I did grab a screenshot when it was on LTE.
Anyone?
http://forum.xda-developers.com/showthread.php?t=1826409
RayoMax said:
http://forum.xda-developers.com/showthread.php?t=1826409
Click to expand...
Click to collapse
Thanks for that thread, but does anyone know why the person is removing the SIM and going through all that trouble when rebooting does the exact same thing?
I have used the #2263 menu to set my phone into LTE only mode, and I get no data connection, nor any cell connection either. Switch it back to Automatic and it jumps right back on 4G.
It is faster to remove the sim and enter *#2263# code lol. Once the sim is removed, a no sim notification should appear. Better than waiting for you phone to reboot.
I will post my lte apn setting for you. Hopefully that will help.
Name
Rogers LTE
APN
ltemobile.apn
Proxy
Not Set
Port
Not Set
Username
Not Set
Password
Not Set
Server
Not Set
MMSC
ttp://mms.gprs.rogers.com
MMS proxy
10.128.1.69
MMS Port
80
MCC
302
MNC
720
Authentication Type
None
APN type
default,mms,supl
APN protocol
IPv4
Enable/disable APN
APN enabled
Bearer
Unspecified
---------- Post added at 08:33 PM ---------- Previous post was at 08:28 PM ----------
MMSC
ttp://mms.gprs.rogers.com
There is obviously a h before ttp:// lol. I am still a new member and can't link "websites" yet.
---------- Post added at 08:40 PM ---------- Previous post was at 08:33 PM ----------
It could also be the modem... I have a link to a stock rogers modem. Just flash in recovery and you may have LTE again. http://forum.xda-developers.com/showthread.php?p=29517422&highlight=rogers#post29517422
Just fyi...
I also have a Rogers S3 and noticed that I am not getting the LTE icon on the notification bar after the first week. Now, I only get a 4G icon in GSM, HSDPA, LTE mode, and 3G/H+ in GSM, HSDPA mode.
However, with the 4G icon, I can still get speeds of 30Mbps down, 13 Mbps up, and under System Information, it shows LTE in Network Type.
My conclusion was that dont rely on the icon in the notification bar. Check the system information page to see the actual network type.
The only time I can get the LTE icon to actually show when I am connected to the LTE network instead of the 4G icon is through re-flashing the ROM. I have tried clearing the cache through recovery menu and it still wont work.
I know this doesnt solve your issue, but I hope this will help anyone that stumble across this problem.
Cheers
Thanks for posting all of that. My APN settings are the same, except the APN type. Mine is set to "Internet + MMS". If I change it, I am prompted with a menu to choose from and the settigns on yours are not in the list. Basically it has the folllwing list:
Internet + MMS + DUN
Internet + MMS
Internet + DUN
INternet
MMS
DUN
Also, flashing the Rogers Modem was probably one of the first things I did. I thought that would have been most likely.
My mobile Network type is UMTS:3 and I am definately not getting LTE speeds. I've heard people say that they only see the 4G icon, but get LTE speeds, but I'm only getting about 5down, and less than 1 up. I say that when I was on another ROM, it showed 4G, but seemed much quicker. Now I'm just hosed.
Out of curiosity, under the system settings, what do you have listed for ERI Version and IMEI SV?
Thanks!
Any other ideas?
Mine show ERI Version: Not Available
IMEI SV:01
Hope that help you.
Side note: I also note that for reasons of economy of battery when I switch to GSM network and I want to return to the lte network, it takes a long time to show me the lte icon....it's seem to stuck a few minutes on the edge even if gsm/hspa/lte(auto mode) is selected.
duchkata said:
Mine show ERI Version: Not Available
IMEI SV:01
Hope that help you.
Side note: I also note that for reasons of economy of battery when I switch to GSM network and I want to return to the lte network, it takes a long time to show me the lte icon....it's seem to stuck a few minutes on the edge even if gsm/hspa/lte(auto mode) is selected.
Click to expand...
Click to collapse
Thanks...those settings are the same on mine. Those are the only ones that stand out to me.
Thank you!
SkydiverChris said:
I ran through every post in that thread, but still no LTE. Man this is driving me crazy. I'll pay someone if they can help me get LTE back... I've already restored the QCN info using the QCN creator posted in one of the threads.
Click to expand...
Click to collapse
check peoplearmy's thread - he added info on how to also restore data. if you have having a problem, maybe don't use your own qcn, generate one with his method and restore that. Worked like a charm for me.
Gabik123 said:
check peoplearmy's thread - he added info on how to also restore data. if you have having a problem, maybe don't use your own qcn, generate one with his method and restore that. Worked like a charm for me.
Click to expand...
Click to collapse
I'm pretty sure I did that...but you have to use your own QCN to generate the new "injected" QCN. As far as I know, it doesn't generate one out of nothing. Unfortunately, I didn't have a QCN generated prior to breaking it. Now the "original" QCN I have is "broken" so when I inject it, it's injecting into a broken QCN.
Something I was curious about doing was getting another Rogers S3 QCN (from a willing XDA member), modifying the IMEI and injecting that back into my phone. Not sure if that would break things, but it might be worth a shot. I'm pretty desperate at this point.
Anyone willing to send me their Rogers QCN, so I can replace the IMEI, and inject it into my phone? Worst case the phone blows up, best case I get LTE back, or just restore my current "broken" QCN.
Thanks!
So...I am now fairly convinced that it actually is a hardware issue and not a software issue. I noticed that it was on LTE again (4th time in a week). I was outside walking my dog. I checked tosee if it was working, and out of shock it was! I then downloaded and ran speedtest...got 28down, 9.5 up. BAM!
Now, here's the kicker. I am in a zone where I've always had 4 bars of LTE, except now I can only get it outside. I checked the signal and it was at 62dbm. Walk inside my house, and it jumps to 87+ dbm and drops LTE. I've always had full LTE signal in my house, work, everywhere, now nothing. Based on this, I am certain that the antenna/radio is pooched. Now I have to either get it repaired or get a refurb...ugh. Giving up my month and a half old phone for a refurb really blows...
I am with Telus, and having the exact same problem (minus the IMEI thing).
I flashed to CM10, and my LTE stopped working. Went back to stock, and it's still not working.
Setting phone to LTE only gets me no signal.
I've tested it in Toronto, Mississauga, Barrie (all LTE capable) and nothing is working.
Apparently, it's an issue with the phone. Search Google for Galaxy S3 radio issues (or swap radio for signal) and there is tones of threads. I have a refurb phone coming from Rogers this week, and I'm gonna leave it at stock. Really sucks...but LTE is the bomb.
I read on one thread that Samsung is supposed to push a code fix for the modem, but that's from a bunch of people speculating on the issue. How true it is...time will tell. I'll post back if/when I get LTE back on the new phone.
So, I just got the new phone and LTE is back working everywhere it used to with full signal and full speed.
I hAve this now too...but it's just the icon as I am getting LTE speeds.
Might call Rogers too...

[Q] "Not Registered On Network" Error

Hi, hoping you guys can help me out:
Current Problem: Bought an unlocked N900T, put in my metroPCS sim, try to dial *228 to switch my plan to that phone's IMEI. Get the "Not Registered On Network" error. Ok. Call metroPCS and have them switch me to that IMEI manually while phone is off and sim is out, still not working, they switched the phone to troubleshooting mode for 2 hours and still couldnt figure it out. Now I'm back on my S3 trying to figure out what's wrong.
Things it cant be:
1) Can't be the sim, it works fine in my S3
2) Can't be the IMEI is bad, checked and looks good
3) Can't be ESN is blocked, checked that
Things i've already tried:
1) ODIN back to pure stock rom (was already there anyway tho)
2) Factory reset
3) Set network to GSM, select automatic registration, never finds service.
I hear there is some Ariza patch to fix network for s3, s4, note 2. dont see one for Note 3. Any ideas would be appreciated. :crying:
You might be in in a At&t area, and its trying to connect to that carrier. Mine does that when I'm not in tmobile area. You might want to uncheck roaming if it's enabled.
Sent from my SM-N900T using XDA Premium 4 mobile app
---------- Post added at 11:34 PM ---------- Previous post was at 11:30 PM ----------
Sound like it's default carrier is wronge. Find network operators and manually set it to metropcs.
Sent from my SM-N900T using XDA Premium 4 mobile app
---------- Post added at 11:44 PM ---------- Previous post was at 11:34 PM ----------
Also check what frequency metropcs is using. And set it correctly. Because if it's not set right your phone will try and connect to the wronge carrier that it's not registered too. It sounds like it's trying to connect to the wrong carrier.
Sent from my SM-N900T using XDA Premium 4 mobile app

No mobile data on LTE

Hi,
I have a problem with my LG G3. I can't connect to mobile data, while network is connected to LTE. On LOS 14.1 everything is working fine. But on any stock ROM (v21a, v21c, v30b, v30d, v30n) phone is connected to LTE, but mobile data doesn't work. On CDMA only I have mobile data through 3G+ or H+. Reflashing through LG UP or flashtool doesn't help. Any suggestions? On custom ROMs LTE is working flawlessly, so it is clearly software issue.
Also enabling or disabling fast dormancy didn't help.
I found that the Access Point Name (APN) defined for my carrier on the phone didnt work. I had to manually define it - after which mobile data worked.
The simple answer is - some or all LTE bands are disabled. You have to enable it. To enable it:
1) go to play store and download "Network signal guru".
2) open the app with an active internet connection.
3)tap on the 3 dots on the top right corner.
4) tap on band locking.
5) tap on lte.
6) select all lte bands. Done.
No reboot required. If the network bars still don't show up, then reboot your phone.
Also make sure that you have the proper APN.
I have the same problem. I want to fix it without root.
Cienky02 said:
I have the same problem. I want to fix it without root.
Click to expand...
Click to collapse
All LG phones come with a hidden menu. To enable lte bands there. If it still doesn't work, try resetting network settings.
I bought an LG G3 about 6 months ago. Everything was great and everything was working until I rooted and changed ROMs to Fulmics ROM 5.6. I got back to stock (30b Global), because I didn't like it and I discovered that my LTE isn't working. Like I mean GSM/WCDMA provides me Internet but only (H and 3G), but when I switch to GSM/WCDMA/LTE auto it doesn't even try to connect to the internet. I flashed cyanogen 13, and other AOSP roms and guess what?! I had LTE. So then I thought, that if i have it on custom roms, i need to have it on the stock one. So I flashed about 5 versions of the stock rom and still no luck.
I still have guarantee, but will they do something else then reflashing the stock?
I've also messed about in the Hidden Menu with those fixes that I found on XDA Forums, but still.. No luck at all.
I really want to have fast internet (My carrier supports LTE, and on the box from the phone it has "LTE" on it. Is it possible to be a hardware problem or software? It's soo slow that I can't even upload this.
Also is there any way of fixing this issue without Root?
farhanshaikh671 said:
The simple answer is - some or all LTE bands are disabled. You have to enable it. To enable it:
1) go to play store and download "Network signal guru".
2) open the app with an active internet connection.
3)tap on the 3 dots on the top right corner.
4) tap on band locking.
5) tap on lte.
6) select all lte bands. Done.
No reboot required. If the network bars still don't show up, then reboot your phone.
Also make sure that you have the proper APN.
Click to expand...
Click to collapse
Network Signal Guru require root, but I don't want to root How to fix it through hidden menu?
Magnum44pl said:
Network Signal Guru require root, but I don't want to root How to fix it through hidden menu?
Click to expand...
Click to collapse
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
Cienky02 said:
I bought an LG G3 about 6 months ago. Everything was great and everything was working until I rooted and changed ROMs to Fulmics ROM 5.6. I got back to stock (30b Global), because I didn't like it and I discovered that my LTE isn't working. Like I mean GSM/WCDMA provides me Internet but only (H and 3G), but when I switch to GSM/WCDMA/LTE auto it doesn't even try to connect to the internet. I flashed cyanogen 13, and other AOSP roms and guess what?! I had LTE. So then I thought, that if i have it on custom roms, i need to have it on the stock one. So I flashed about 5 versions of the stock rom and still no luck.
I still have guarantee, but will they do something else then reflashing the stock?
I've also messed about in the Hidden Menu with those fixes that I found on XDA Forums, but still.. No luck at all.
I really want to have fast internet (My carrier supports LTE, and on the box from the phone it has "LTE" on it. Is it possible to be a hardware problem or software? It's soo slow that I can't even upload this.
Also is there any way of fixing this issue without Root?
Click to expand...
Click to collapse
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.
farhanshaikh671 said:
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.
Click to expand...
Click to collapse
I know how to acces hidden menu. Which option in it I have to change?
farhanshaikh671 said:
Different phones have different codes. Try searching "how to access hidden menu on [phone model no]"
---------- Post added at 09:30 AM ---------- Previous post was at 09:28 AM ----------
I too had the exact same problem, until I discovered an app called 'network signal guru'. Go check it out. It'll definitely work.
Click to expand...
Click to collapse
I tells me that i need to root. I dont want to do that, any way to do it without?
On Fulmics there is also no LTE. LTE works only on AOSP/CM ROMs. What the hell?
Magnum44pl said:
I know how to acces hidden menu. Which option in it I have to change?
Click to expand...
Click to collapse
I'm assuming that you have full network bars and you only cannot access the internet.
Accessing hidden menu comes in use ONLY when no network bars are appearing after changing from GSM/HSPA to LTE and it also requires root.
If you ONLY cannot access the internet but have full network bars after changing to LTE, you have to change the APN in settings. APNs are carried specific, so they differ from carrier to carrier. APNs act like a gateway between the phone and the internet. So, APNs are necessary in order to use the internet.
To get your APN, open Google and search "apn settings for [carrier name] 4g"
---------- Post added at 03:26 PM ---------- Previous post was at 03:20 PM ----------
Magnum44pl said:
On Fulmics there is also no LTE. LTE works only on AOSP/CM ROMs. What the hell?
Click to expand...
Click to collapse
If you're already rooted, use the app 'network signal guru'. Download the app, open the app, tap on the 3 dots on the top right corner of the screen. Tap on band selection. Tap on lte. Enable all lte bands. Done.
farhanshaikh671 said:
I'm assuming that you have full network bars and you only cannot access the internet.
Accessing hidden menu comes in use ONLY when no network bars are appearing after changing from GSM/HSPA to LTE and it also requires root.
If you ONLY cannot access the internet but have full network bars after changing to LTE, you have to change the APN in settings. APNs are carried specific, so they differ from carrier to carrier. APNs act like a gateway between the phone and the internet. So, APNs are necessary in order to use the internet.
To get your APN, open Google and search "apn settings for [carrier name] 4g"
---------- Post added at 03:26 PM ---------- Previous post was at 03:20 PM ----------
If you're already rooted, use the app 'network signal guru'. Download the app, open the app, tap on the 3 dots on the top right corner of the screen. Tap on band selection. Tap on lte. Enable all lte bands. Done.
Click to expand...
Click to collapse
Changing APN's and even after rooting using this app didn't help. I am sending phone to repair, because it's still on guarantee.
Magnum44pl said:
Changing APN's and even after rooting using this app didn't help. I am sending phone to repair, because it's still on guarantee.
Click to expand...
Click to collapse
First try claiming a replacement for your sim card. If it still doesn't work, ask for a replacement for ur phone itself.
With new SIM card the problem still exists.

T-Mobile help

I need your help guys and gals. Just switched to T-Mobile and my wife is the only one having issues. I had the phone unlocked and it does work but intermittently. The data will stop working at random even with correct apn settings. Sometimes the 4g lte indicator will be there sometimes not. Restart sometimes fixes, searching available network helps as well. Any help would be appreciated.
Mod please move to question. Put it in wrong place. Thanks.
Apn settings you need to manually set them
---------- Post added at 01:04 PM ---------- Previous post was at 01:01 PM ----------
https://support.t-mobile.com/docs/DOC-30273
Here is the settings above (link straight from t-mobile)
Also just an FYI in case that doesn't work... there has been issues with 7.0 active on t-mobile
Flash back to 6.0.1 (no root needed) and then set apn settings. However don't do that unless for sure your still having issues after going through everything else.
I have set all the apn settings. She is running 7.0, I will try 6 when she gets home.
Try this
criptix said:
I need your help guys and gals. Just switched to T-Mobile and my wife is the only one having issues. I had the phone unlocked and it does work but intermittently. The data will stop working at random even with correct apn settings. Sometimes the 4g lte indicator will be there sometimes not. Restart sometimes fixes, searching available network helps as well. Any help would be appreciated.
Mod please move to question. Put it in wrong place. Thanks.
Click to expand...
Click to collapse
This is not "S7 Active" specific issue. It is overall S7 issue on Android 7.0. You don't need to downgrade to 6.0.1. Just delete all the APNs (make it EMPTY!) -> Restart phone -> Add APN -> Restart. Problem solved.
---------- Post added at 05:26 AM ---------- Previous post was at 05:23 AM ----------
If you get poor LTE coverage on T-mobile, you should switch to 4G instead. That way, you'll get better reception + you'll save little bit of battery life.
Dial *#*#4636#*#* on your phone dialer -> 'Device Information' -> 'Set Preferred Network Type:' -> Select 'WCDMA preferred' or 'Global auto (PRL)'
I used to get 1 bar on LTE, now I'm getting full coverage on UMTS. I'm on MINT SIM (they are T-mobile MVNO).

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