Develop Bugs

[Q] wi-fi not working with custom roms - possible Temp fix

I have searched for this for a long time and have found nothing on it
when I install anything other than stock I can not connect to wi-fi
it says the signal is great but will not connect to any - tries to connect - says it is obtaining IP address then fails
I have gone back and installed stock modems but still the same thing - I have tried several different ROMS including paranoid and CM
when I go back to stock it works great
any Ideas?
possibly fixed - still testing
typed in *#197328640#
hit menu and chose wi-fi
it brings up the wi-fi info and an off-on button -wi-fi power saver mode - click off and it connected as soon as i did that
not sure why but i will play with it some more - i am running a stock MA5 7105 based rom
pa3 now works - had to go into settings - wi-fi- advance - keep wi-fi on during sleep - turn to never then back to always - it connected right away
its the wi-fi power saver mode that i turned off and it has to be redone at each reboot
now that I have figured out that its a problem with the wi-fi power saving mode - and that it must be reset each reboot - anyone have any ideas on how to fix it?
not sure if a script could be ran automaticaly at boot to reset it so that i would not have to go in and do it manually each time
I have no Idea even how to write one

Re: [Q] wi-fi not working with custom roms
Jedi master has wifi calling. And it works.
Sent From Land Of Ooo. Using a Jedi Mastered Note 2.

Kernel?
m936a2 said:
I have searched for this for a long time and have found nothing on it
when I install anything other than stock I can not connect to wi-fi
it says the signal is great but will not connect to any - tries to connect - says it is obtaining IP address then fails
I have gone back and installed stock modems but still the same thing - I have tried several different ROMS including paranoid and CM
when I go back to stock it works great
any Ideas?
Click to expand...
Click to collapse
What kernels are you using?
So far Perseus Kernel has been the most reliable and snappiest kernel but will not work with CM10 or AOSP. Perseus and Jedi roms have been great combos. I didn't like the Saber kernel as I had issues with the 5 ghz band, as well as in and out Wi-Fi connectivity.
Today I'm going back to AOSP hoping they've added some features since the unofficial days, combined with the FORCE Kernel.
ALSO: Make sure you fully wipe your device when changing roms. It's not common for most people, but I format every partition when flashing. I have run into way fewer problems with that approach, but make sure you don't accidently reboot your device before flashing. You'll have to odin flash at that point.

m936a2 said:
I have searched for this for a long time and have found nothing on it
when I install anything other than stock I can not connect to wi-fi
it says the signal is great but will not connect to any - tries to connect - says it is obtaining IP address then fails
I have gone back and installed stock modems but still the same thing - I have tried several different ROMS including paranoid and CM
when I go back to stock it works great
any Ideas?
Click to expand...
Click to collapse
I think I know the Answer to your issue!.. Check out the Threads I stared, by clicking on my profile , in the SGS4G Forum..
http://forum.xda-developers.com/showthread.php?t=1957920
Or try these two things.
1)If you are using WPS Connection Make sure you are holding Your WPS button for at least ten seconds before releasing it to ensure you "have it scanning Your Devise".. it had been so long for me between stock and custom I "Thought it only took 2 seconds..
2) AND MOST LIKELY YOUR ISSUE.. If you were using a "Password" and entering it forget entering it. The "Password" is no longer "working"
Instead. Click on your Wifi Icon on your laptop or PC. Then Left click Your Wifi Connection. Now Right click Properties. Now CHECK the box under network security key (you will have to be an Administrator to do this) and you will see YOUR WIFI SECURITY KEY ie (aed566fgd1cbi34hjk77i) and input that in as Your Password instead of the "old" Password you had which could have been your dogs name or your first cars name..
Sorry for the lack of technical directions..
Your password (I think) is no longer what you set it as. IT IS as what shows in your WIFI Properties Network Security Key on your Laptop/PC.
Let me know please.

not looking for wi-fi calling - trying to figure why the wi-fi will not connect to my home wi-fi when installing custom roms I know the WEP password by heart and have tried several Roms - stock works - custom does not - I always do a clean install - I have had several androids - all rooted and find a clean install tends to work better - its not something installed later (apps) as it will not log in when i am setting up at first start up or after rebooting
I shut down wi-fi security on my router - still can not connect to it when open - tried 2 different custom roms
I am going to try a stock based custom rom and see if the problem continues - all the ones i tried are 4.2 ports or based on at&t roms
Frosty - based off stock LL4 works
JediX - based off 7105 rom does not work for me

none of the "stock" 7105 roms from teshxx are working for me - they install great - everything works but can not connect to any wi-fi

Re: [Q] wi-fi not working with custom roms
m936a2 said:
I have searched for this for a long time and have found nothing on it
when I install anything other than stock I can not connect to wi-fi
it says the signal is great but will not connect to any - tries to connect - says it is obtaining IP address then fails
I have gone back and installed stock modems but still the same thing - I have tried several different ROMS including paranoid and CM
when I go back to stock it works great
any Ideas?
Click to expand...
Click to collapse
While the phone is trying to connect to WiFi, unplug the router and plug it right back in, WiFi should allow you to connect when it's done resetting
Sent from my SGH-T889 using xda app-developers app

Re: [Q] wi-fi not working with custom roms
Could be a problem that started at root. I would odin back to stock reroot then try again. If it was settings or user error you would be making the same mistakes on stock roms. But you say it works on stock roms so it would seem that's not the case.
sent via note 2 in boss mode @ quad core 2 ghz

tgamble160 said:
Could be a problem that started at root. I would odin back to stock reroot then try again. If it was settings or user error you would be making the same mistakes on stock roms. But you say it works on stock roms so it would seem that's not the case.
sent via note 2 in boss mode @ quad core 2 ghz
Click to expand...
Click to collapse
I will try that tonight - thanks - I love paranoid roms - i have it on both my other phones(vibrant and sensation) and would like to get it working on my note

Re: [Q] wi-fi not working with custom roms
m936a2 said:
I have searched for this for a long time and have found nothing on it
when I install anything other than stock I can not connect to wi-fi
it says the signal is great but will not connect to any - tries to connect - says it is obtaining IP address then fails
I have gone back and installed stock modems but still the same thing - I have tried several different ROMS including paranoid and CM
when I go back to stock it works great
any Ideas?
Click to expand...
Click to collapse
It def sounds like a issue with root or u have a bad phone internal.
Sent from my SGH-T889

Re: [Q] wi-fi not working with custom roms
m936a2 said:
I will try that tonight - thanks - I love paranoid roms - i have it on both my other phones(vibrant and sensation) and would like to get it working on my note
Click to expand...
Click to collapse
I'm serious though... for years now, whenever I try to connect to WiFi after not being on it for a set amount of time, I'll try to connect and it will get stuck at Obtaining IP... All I do is unplug the power cable from the back of my router (not the modem you get from the ISP) for like 1 second, plug it back in, and viola, devices connect perfectly
Sent from my SGH-T889 using xda app-developers app

Same issue for me. Nothing is working for me.

ok - Odin back to stock - fresh start no root - wi-fi works great -root with CF-auto root - all good triangle away to remove root count
clean install of Paranoid 3.0 - wi-fi does not work at set-up - will not connect
clean install of CM nightlies - wi-fi still not working - install LL4 stock modem - still nothing
teshxx MA5 - same thing
went back to LL4 based Frosty - wi-fi connects right away
wi-fi connects with any true stock based roms but no ports or ASOP based ones
I don't even get past initial set-up - I can tell right away if it is working

Re: [Q] wi-fi not working with custom roms
m936a2 said:
ok - Odin back to stock - fresh start no root - wi-fi works great -root with CF-auto root - all good triangle away to remove root count
clean install of Paranoid 3.0 - wi-fi does not work at set-up - will not connect
clean install of CM nightlies - wi-fi still not working - install LL4 stock modem - still nothing
teshxx MA5 - same thing
went back to LL4 based Frosty - wi-fi connects right away
wi-fi connects with any true stock based roms but no ports or ASOP based ones
I don't even get past initial set-up - I can tell right away if it is working
Click to expand...
Click to collapse
What model is ur router.
Sent from my SGH-T889
---------- Post added at 06:12 PM ---------- Previous post was at 05:49 PM ----------
m936a2 said:
ok - Odin back to stock - fresh start no root - wi-fi works great -root with CF-auto root - all good triangle away to remove root count
clean install of Paranoid 3.0 - wi-fi does not work at set-up - will not connect
clean install of CM nightlies - wi-fi still not working - install LL4 stock modem - still nothing
teshxx MA5 - same thing
went back to LL4 based Frosty - wi-fi connects right away
wi-fi connects with any true stock based roms but no ports or ASOP based ones
I don't even get past initial set-up - I can tell right away if it is working
Click to expand...
Click to collapse
Also how did u root ur phone?
Sent from my SGH-T889

the router is not the problem as I have tried getting on both closed and open systems. I used Odin to o back to stock unrooted as well as to apply CF auto root. Its weird - i have been rooting my android phones since my first mytouch and I am about stumped lol

Re: [Q] wi-fi not working with custom roms
m936a2 said:
the router is not the problem as I have tried getting on both closed and open systems. I used Odin to o back to stock unrooted as well as to apply CF auto root. Its weird - i have been rooting my android phones since my first mytouch and I am about stumped lol
Click to expand...
Click to collapse
Yes but some people using Odin have either done it wrong or bad download of Odin.every phone is different. Some temperamental. Is ur antivirus off just incase
Sent from my SGH-T889

BACARDILIMON said:
Yes but some people using Odin have either done it wrong or bad download of Odin.every phone is different. Some temperamental. Is ur antivirus off just incase
Sent from my SGH-T889
Click to expand...
Click to collapse
antivirus is off - what i dont get is why it works every time when running a stock rom or even a stock based rom - even if i go directly from a non working costom rom to a stock based rom - it works - i don't have to odin back to stock to get it to work - just flash a stock based rom and wi-fi starts working

Re: [Q] wi-fi not working with custom roms
m936a2 said:
antivirus is off - what i dont get is why it works every time when running a stock rom or even a stock based rom - even if i go directly from a non working costom rom to a stock based rom - it works - i don't have to odin back to stock to get it to work - just flash a stock based rom and wi-fi starts working
Click to expand...
Click to collapse
Sounds like something is getting killed in the rom flash. What recovery u using.
Sent from my SGH-T889
---------- Post added at 07:31 PM ---------- Previous post was at 07:30 PM ----------
m936a2 said:
antivirus is off - what i dont get is why it works every time when running a stock rom or even a stock based rom - even if i go directly from a non working costom rom to a stock based rom - it works - i don't have to odin back to stock to get it to work - just flash a stock based rom and wi-fi starts working
Click to expand...
Click to collapse
I know this sucks but I would use zedomax way of rooting on his website. Then flash a rom from a fresh download.
Sent from my SGH-T889

BACARDILIMON said:
Sounds like something is getting killed in the rom flash. What recovery u using.
Sent from my SGH-T889
---------- Post added at 07:31 PM ---------- Previous post was at 07:30 PM ----------
I know this sucks but I would use zedomax way of rooting on his website. Then flash a rom from a fresh download.
Sent from my SGH-T889
Click to expand...
Click to collapse
this time I am using Clockworkmod 6.0.2.8 - i have used TWRP before

Same Problem
m936a2 said:
antivirus is off - what i dont get is why it works every time when running a stock rom or even a stock based rom - even if i go directly from a non working costom rom to a stock based rom - it works - i don't have to odin back to stock to get it to work - just flash a stock based rom and wi-fi starts working
Click to expand...
Click to collapse
I am having the same problem tried everything for 2 days now I have PA3 tried every option that I know of and one thing worked for a short time. I toggled the moble network off rebooted and wifi came on updated mt apps rebooted and it was off like a &^*@ tease! I am frustrated as hell because every phone I own is running PA3. My T-Mobile phone is just for podcast while im driving and I only download them via wifi! before I leave to work. I dont even use as a phone. I went to stock and have full wifi, rooted and have wifi updated to pa3 and no wifi. every costom rom I use I get no wifi unless I go to stock. is there a newer modem I should flash. I tried everything else and I don't care if I even cant make a call on it I just want wifi. Ad no the unpluging router did not work and all 5 of my other phones with modded roms work and 2 with pa3. 10 seconds till I throw my phone through the window and I am at the pont that I don't care that I miss spellled everything I typed

[Q] Poor mobile data connection after loss and subsequent reinjection of IMEI

Hello everyone, please excuse my noobness. I have spent two days now searching and trying to solve my issue, but no luck. Here are the series of events:
1. rooted i747 and got cwm 5.5
2. flashed liquidsmooth with cwm 5.5 and gapps
3. everything was fine (i think)
4. i tried to flash cm 10.1 with cwm 5.5 not realizing i needed 6.x and the flash failed
5. restored to my liquidsmooth back up
6. realized my imei was 0 at this point and no cell signal
7. used odin 3.07 to flash back to stock 4.1.1 rom from samsung
8. injected my imei using NV items reader writer method
After this sequence of events, regardless of the rom (stock, cm, liquidsmooth), my modem connects to LTE and is fine while i'm using it, but then after idling for 20 mins or more is on GPRS. Sometimes it has no data connection whatsoever. If i go to airplane mode and then come back out of airplane mode it will find the LTE tower and be fine again until I leave it alone or use it for more than 20 minutes.
I am using the correct APN (phone or pta on ATT)
my IMEI is correct under status in the about section in settings.
I have also done this : http://forum.xda-developers.com/showthread.php?t=2036891
i have also flashed my modem with this rom : I747UCDLK3_I747ATTDLK3_ATT (My baseband version is UCDLK3) from this thread: http://forum.xda-developers.com/showthread.php?t=1831898
The issue isn't that I can not connect to HSPA+ or LTE ... the issue is I lose that connectivity after 20-30 minutes and can not gain it back unless I toggle airplane on and off.
Any help or suggestions would be greatly appreciated.

I wanted to update this thread, in case others had the issue.
There was no solution that could be found. I ended up taking the phone in to ATT after resetting to factory defaults and resetting the flash counter. They replaced it and now on CM10.1.2 with normal functioning radio.

Can't make calls out (Random only on network mode WCDMA/GSM (Auto Connect)

Hi.
I have a Samsung Galaxy S3 T999 model on carrier T-mobile. Lately the phone has gone nuts and will get stuck on dialing out and will never make the call. Everything else works fine. Sometimes I have to soft reset, pull the battery and that will fix it for a call or two, then it will get stuck again. I have contacted T-mobile about this over 5 times and none of them can help. We tried to change the sim, reset the account. Etc and nothing. I have reset the cache, factory reset and even put in a good working sim card from another phone and the same problem comes up. During my latest troubleshooting I have narrowed it down to where I switch "network mode" to GSM only and that can make calls out all the time, but the data stays on E (which then I can't use the internet because it's so slow) When I switch back to auto I am sometimes able to place calls again, but only a few. After I test a few calls and leave the phone for a few minutes the phone will get stuck back on not making calls out and just saying "dialing".
Has anyone had the same problems or know of a fix? Currently I have been trying to flash the modem to different versions to see if that fixes the problem. The first two modems I have flashed did not work and came up with "unknown baseband".
If anyone can help I greatly appreciate it.

This is a known issue with 4.3.. What firmware are you on? Assuming you flashed the correct baseband for your device, the 'unknown baseband' message sounds like you are in 4.3 but what build? You can't flash any modems successfully less than 4.3
Sent from my SGH-M919 using Tapatalk

serio22 said:
This is a known issue with 4.3.. What firmware are you on? Assuming you flashed the correct baseband for your device, the 'unknown baseband' message sounds like you are in 4.3 but what build? You can't flash any modems successfully less than 4.3
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
I was previously on 4.1.2 when the problem first started. I updated it to 4.3 and still the same problem.
jss15j.t999uvuenc2 build. (I put this one back on last night so at least I can use the phone today when I am at work)
I was just hoping that the device didn't go bad when it was on 4.1.2 because it was working just fine before the problem started.

Was it official update to NC2 by OTA/Odin or you just flashed a ROM?
Sent from my SGH-M919 using Tapatalk

serio22 said:
Was it official update to NC2 by OTA/Odin or you just flashed a ROM?
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
NC2 was OTA. After doing some searches it said that OTA could of been corrupt, so I went and downloaded KIES and did a reinstall that way.
When I upgraded to 4.3 I tried that default baseband out and had the same problems. That is when I was searching on google and came across this forum and also the thread about flashing modems.

What APN (Access Point Name) are you on ? Also what is your Preferred Network Type set to ? Its located in Settings > More I think.(I don't use Stock Firmware)

Perseus71 said:
What APN (Access Point Name) are you on ? Also what is your Preferred Network Type set to ? Its located in Settings > More I think.(I don't use Stock Firmware)
Click to expand...
Click to collapse
APN is epc.tmobile.com
Network Mode current set to GSM (the only way I can make calls out without the problem occuring)
WCDMA/GSM (Auto Connect) is what it should be on so my data is at 4G, but the calls is the problem here

I am not sure but can you check the settings of the Dialer to see if there is ways to choose Lookup providers ?

Perseus71 said:
I am not sure but can you check the settings of the Dialer to see if there is ways to choose Lookup providers ?
Click to expand...
Click to collapse
Nope don't see anything in the dialer about selecting a provider..

Its supposed to be something about Choose Lookup Providers. At least that's the way it is on AOSP.

I suggest Odin flashing the stock NC2 firmware and then factory resetting from stock recovery. (Backup first of course!) If it is still an issue, it will most likely be a hardware problem. From what you have said so far, I believe that you will find this to be the case. Could've been due to damage from a drop, or even overheating at some point. Or it could just be that its simply due to hardware degradation over time.

[Q] Problem with Signal/Service - weak Signal, breakdowns

my device now: i9195, I9195XXUCNE6-DBT
I experience weak signal and many connection dropdowns. When this occured first, after i upgraded f4ktion Kernel 1.3.6 to 1.4.5 and
an older version of Carbon Rom (4.2.2) to 4.3 Carbon Rom. Until than everything was fine, flash of rom and kernel did not made any problem.
Btw i used Odin3 3.09 and clean install (step by step like in the guides) all the time.
After some days this realy annoyed me, so i went back to the older Carbon and kernel - problem still occurs.
So i went back to stock rom I9195XXUBML4-DBT (original was UBML4) - problem still existing.
Some time later f4ktion 1.5 and Carbon 4.4.4 was available, so i tried this..still no solution.
Now i am back to stock and updated to I9195XXUCNE6-DBT, same problem.
Some research told me many ne stuff to know..like flashing modem only. I tried some, nothing helped.
After hours of pointless googleing i noticed something on my phone.When i dont type the pin, i have normal signal. As soon as i type the pin
and "activate" my simcard, the signal strength drops. So i googled again and found this:
[Bug Watch] Android 4.3 Radio Bugs Causing Cell Connection Drops On Some Nexus 4 Handsets, Fixes In Sight (not allowed to post links)
I changed the network type to WCDMA only - it helped for some minutes(not many..maybe 2-3). I changed to GSM only and i had normal,
stable signal for like an hour. But later signal loses strenght again, and i need to change network type again.
I have the feeling, that its like a reset or restart of the radio.
But now i am all out of ideas and need some help.
Last thing i can do, is to bring it to repair. But my Knox says 0x1, so maybe you can help me before i ask Samsung.

I have similar problem since ugrading to KitKat roms. I had no problems with previous none Knox roms with MH3 modem but now with NE6 and NF7 KK modems the signal swings constantly up and down from 4 to 1 bars. This is in areas I previously had good signal. Internet also keeps dropping out requiring data toggling on and off. I've reflashed KK 20+ times and haven't been able to get rid of this problem yet.
I'm not sure if pre knox modems are installable but I intend to try and reflash MH3 modem, once I manage to do a successful backup.

I solved a similar problem by downgrade to 4.2.2 Brazil NE2, knox 2. Flashing separate modem (NE2), and reflashing full rom again. No problems for now

Now you stay on 4.2.2 ?
I dont understand why some people do have problems and some not. Is there different hardware version causing the trouble ?
Give me pls some information how you did the downgrade.
-Nandroid Backup
-philz
-Odin (if yes which version)
-why did you choose that rom
I tried to, but wasnt succesfull. I used Odin3 3.09 to flash 4.2.2 (UAMF5 i think) rom and got a brick. When trying to fix this nothing helped until i tried to flash with Odin3 3.04. But all i could do was flashing newest FW again. Did not test more after that, because i was very busy.
If you say that going back solved your problem, i will try again go go back myself. I've found some information on that and when its done i give some informations.

Same here, help?
I'm having the same problem with a newly acquired handset. I have full signal on some places and nothing on others, unfortunately in my house I have no signal! So it's quite exasperating.
My baseband version is I9195XXUCNE6
Android version is 5.0.2 with 3.4.0-cyanogenmod-g92aec50 [email protected] #1 kernel
Cyanogenmod version is 12-20150306-UNOFFICIAL-serranoltexx
Would it help if I flash a separate modem file through Odin? In that case, which one should I flash?
Any help would be appreciated a lot.
Thanks

franzasensi said:
I'm having the same problem with a newly acquired handset. I have full signal on some places and nothing on others, unfortunately in my house I have no signal! So it's quite exasperating.
My baseband version is I9195XXUCNE6
Android version is 5.0.2 with 3.4.0-cyanogenmod-g92aec50 [email protected] #1 kernel
Cyanogenmod version is 12-20150306-UNOFFICIAL-serranoltexx
Would it help if I flash a separate modem file through Odin? In that case, which one should I flash?
Any help would be appreciated a lot.
Thanks
Click to expand...
Click to collapse
If you have warrenty left then you should go to customer service then they will change your mainboard. and it would bw okay.

updated bl and cp for t-mobile galaxy note 3

I found out there was an updated firmware for the t-mobile galaxy note 3, but i couldn't find the bl and cp downloads anywhere, so i decided to just extract and make them available myself. ive uploaded to my phone, on which i am running a 6.0.1 rom with galaxy s8 features. it loaded perfectly fine, and believe it or not, my signal has improved signifigantly! i hope it stays that way. im just sharing in case anyone else was in my predicament, and wanted to make it easy to find. all you need is odin 3.11.1, and the bootloader and modem (bl and cp) available below. if you need to know how to use odin, search it, theres tons of info on xda. just in case something goes wrong with your phone, or youre worried it might, dont do it, and blame the phone gods if something goes wrong.
https://forum.xda-developers.com/devdb/project/dl/?id=25985
XDA:DevDB Information
t-mobile galaxy note 3 (sm-n900t) updated bl and cp, Tool/Utility for the T-Mobile Samsung Galaxy Note 3
Contributors
ravenchalk
Version Information
Status: Stable
Created 2017-08-05
Last Updated 2017-08-05

What's the version? Can anyone else confirm this worked for them?

agapecs said:
What's the version? Can anyone else confirm this worked for them?
Click to expand...
Click to collapse
Seems to be an old bootloader :/
Update-- or maybe it's not flashing? very odd.. heimdall says it is.
Totally weird. I'm seeing the string N900TUVUFQD2 in modem.bin but after I flash it, it' still being listed as the B6 one... super strange. It's like the flash isn't "taking"

I am in the same boat firmware OB6 going to QD2. I've tried Odin 3.11 or 3.12; show successful but Phone INFO still shows OB6?
---------- Post added at 11:12 PM ---------- Previous post was at 10:35 PM ----------
Found the answer; you MUST power off; battery pull not needed. DO NOT CONNECT TO PC. Volume Down+Home+Power, you'll get an option to press Volume Up to continue -> now connect USB to PC. This will allow the upgrade of the Baseband/Modem.

agapecs said:
I am in the same boat firmware OB6 going to QD2. I've tried Odin 3.11 or 3.12; show successful but Phone INFO still shows OB6?
---------- Post added at 11:12 PM ---------- Previous post was at 10:35 PM ----------
Found the answer; you MUST power off; battery pull not needed. DO NOT CONNECT TO PC. Volume Down+Home+Power, you'll get an option to press Volume Up to continue -> now connect USB to PC. This will allow the upgrade of the Baseband/Modem.
Click to expand...
Click to collapse
Yup. That was it. Powering off (and in my case pulling the battery) was the key.
Incidentally this modem is needed for lineageos 14.1 or you'll have simcard issues.
Thx!

fattire said:
Yup. That was it. Powering off (and in my case pulling the battery) was the key.
Incidentally this modem is needed for lineageos 14.1 or you'll have simcard issues.
Thx!
Click to expand...
Click to collapse
I have lineageos 14.1 hltetmo version and today had issues after leaving a wifi hotspot and having an lte connection problem. Just shows an x for data. Restarted phone and lte was back up and running. I was already running the QD2 modem at the time today.

craig198 said:
I have lineageos 14.1 hltetmo version and today had issues after leaving a wifi hotspot and having an lte connection problem. Just shows an x for data. Restarted phone and lte was back up and running. I was already running the QD2 modem at the time today.
Click to expand...
Click to collapse
I had a very similar issue. i was on my own wifi when the problem appeared. I restarted the phone several times, but never pulled the battery out. I decided to go back to stock OS because of the recurring issue. By any chance did you use the tmo apn settings from their website?. At some point even having lte signal i had no data connection at all.
Hows yours running?

Is it possible I might need an older baseband for best signal or basic functions like SMS?
Running MagMa VX1. Flashed bl and cp in Odin before a clean ROM flash in TWRP. ROM's great, data's fine, but I can't receive SMS basic texts. I've checked APN settings and changed APN type a lot -- still can't receive SMS. Could this baseband be the problem? Or what else, for not receiving SMS?
EDIT: Fixed. ROM set APN protocol to IPv4/IPv6 by default. Changed it back to only IPv4 and now receive SMS again.

ravenchalk said:
I found out there was an updated firmware for the t-mobile galaxy note 3...
but i couldn't find the bl and cp downloads anywhere, so i decided to just extract and make them available myself. ive uploaded to my phone, on which i am running a 6.0.1 rom with galaxy s8 features. it loaded perfectly fine, and believe it or not, my signal has improved signifigantly! i hope it stays that way. im just sharing in case anyone else was in my predicament, and wanted to make it easy to find. all you need is odin 3.11.1, and the bootloader and modem (bl and cp) available below. if you need to know how to use odin, search it, theres tons of info on xda. just in case something goes wrong with your phone, or youre worried it might, dont do it, and blame the phone gods if something goes wrong.
https://forum.xda-developers.com/devdb/project/dl/?id=25985
XDA:DevDB Information
t-mobile galaxy note 3 (sm-n900t) updated bl and cp, Tool/Utility for the T-Mobile Samsung Galaxy Note 3
Contributors
ravenchalk
Version Information
Status: Stable
Created 2017-08-05
Last Updated 2017-08-05
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are you using BL: N900TUVUFQD2 ?????

TheGame1083 said:
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are you using BL: N900TUVUFQD2 ?????
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Confirm It Works What he says . Bootloader N900TUVUFQD2