Database Develop

How do I activate the LTE

Hello Friends i recently bought a LG G2 from Verizon ..... but it does not give me network LTE (4G) … ..i have seen videos where design that there is access to a service menu ..... and he tried to enter but i can't .... i would be grateful if you could help me ...... I'm already root user

moyx said:
Hello Friends i recently bought a LG G2 from Verizon ..... but it does not give me network LTE (4G) … ..i have seen videos where design that there is access to a service menu ..... and he tried to enter but i can't .... i would be grateful if you could help me ...... I'm already root user
Click to expand...
Click to collapse
Make sure your on CDMA and not global mode. Settings :network then make sure CDMA is checked and not global

moyx said:
Hello Friends i recently bought a LG G2 from Verizon ..... but it does not give me network LTE (4G) … ..i have seen videos where design that there is access to a service menu ..... and he tried to enter but i can't .... i would be grateful if you could help me ...... I'm already root user
Click to expand...
Click to collapse
They did not set up your phone in store your you? They are kind of Nazi about that.
Do you have your SIM card installed correctly? If the SIM is not in, or not in correctly then 4G wont work.
Also do you have mobile data turned on, have to ask.
Mine data is set to global and works but yeah try setting it to CDMA/LTE

Haxcid said:
They did not set up your phone in store your you? They are kind of Nazi about that.
Do you have your SIM card installed correctly? If the SIM is not in, or not in correctly then 4G wont work.
Also do you have mobile data turned on, have to ask.
Mine data is set to global and works but yeah try setting it to CDMA/LTE
Click to expand...
Click to collapse
Thank you for your help .... i already .... but I am not be able to say as i can put the GSM option/CMDA/LTE

simple_fear85 said:
Make sure your on CDMA and not global mode. Settings :network then make sure CDMA is checked and not global
Click to expand...
Click to collapse
Thank you for your help .... i already .... but I am not be able to say as i can put the GSM option/CMDA/LTE

Did you set it to LTE?
Sent from my LG-VS980 using Tapatalk 2

moyx said:
Thank you for your help .... i already .... but I am not be able to say as i can put the GSM option/CMDA/LTE
Click to expand...
Click to collapse
Settings, Tethering & Networks, Mobile Networks, System Select, LTE/CDMA. If you don't have that option, something is up with your phone, might be a bad sim or something, take it back to the store.

I've had mine on global since forever. Global does not turn off LTE. Perhaps something is physically wrong. Check the SIM

You need a new SIM. Happened to me. Did a bunch of research and there was hints of the SIM that comes with the phone by default sometimes having an issue with 4G. I called Verizon and they sent me one next day. Installed it and been fine ever since.
Try it, It is free and I am pretty sure it will fix it.
Jeff

gixxer340 said:
You need a new SIM. Happened to me. Did a bunch of research and there was hints of the SIM that comes with the phone by default sometimes having an issue with 4G. I called Verizon and they sent me one next day. Installed it and been fine ever since.
Try it, It is free and I am pretty sure it will fix it.
Jeff
Click to expand...
Click to collapse
If you have a local (not 3rd party) store, you can get a SIM free there also.

Just Lost All Cellular Data On Verizon

Strange thing has happened to my beloved N6. This was a Tmob purchased device. Activated on via an existing VZ sim & been working since day 1 no prob. However, about 3 hours ago or so, its lost all its cellular data. Tried reboot, take sim in/out, etc. No luck.
Also, under Network Operators, choosing VZ and trying to register fails - Selected network (Verizon) unavailable
Anyone seeing similar behavior?

By ANY chance, did you put the TMobile SIM back in? For whatever reason, when I did that, I had to factory reset my device to get it to recognize the VZW SIM.
buddhatown said:
Strange thing has happened to my beloved N6. This was a Tmob purchased device. Activated on via an existing VZ sim & been working since day 1 no prob. However, about 3 hours ago or so, its lost all its cellular data. Tried reboot, take sim in/out, etc. No luck.
Also, under Network Operators, choosing VZ and trying to register fails - Selected network (Verizon) unavailable
Anyone seeing similar behavior?
Click to expand...
Click to collapse

anaphora68 said:
By ANY chance, did you put the TMobile SIM back in? For whatever reason, when I did that, I had to factory reset my device to get it to recognize the VZW SIM.
Click to expand...
Click to collapse
I dont think so, but there are an awful lot of sims floating around my house. Strange as it happened mid morning after I had been using data for quite some time. Then poof. No signal.

What state you live in? Indiana has had a blackout for all cell carriers since yesterday/today around knox,greene, and other counties. Bloomington, columbus.

That really, really sucks. Is it possible that Mobile Data is out in your area?
buddhatown said:
I dont think so, but there are an awful lot of sims floating around my house. Strange as it happened mid morning after I had been using data for quite some time. Then poof. No signal.
Click to expand...
Click to collapse

VZ data was ok for co-workers, so data was def good.
Ended up doing a factory reset, and all is good again. I can see a difference in my Cellular Network Screen though...
When I first got it, it was using 'Global' as the 'Preferred Network Type'. When it was busted early today, that was set to LTE with no option for Global. Also, earlier, it would let me scan for available carriers...now after the factory reset...its locked into VZ once again.
I didnt do anything, to my knowledge, to cause it to do any of this...And thats the scary part.

buddhatown said:
VZ data was ok for co-workers, so data was def good.
Ended up doing a factory reset, and all is good again. I can see a difference in my Cellular Network Screen though...
When I first got it, it was using 'Global' as the 'Preferred Network Type'. When it was busted early today, that was set to LTE with no option for Global. Also, earlier, it would let me scan for available carriers...now after the factory reset...its locked into VZ once again.
I didnt do anything, to my knowledge, to cause it to do any of this...And thats the scary part.
Click to expand...
Click to collapse
I saw a post somewhere about changing some APN settings from ipv6 to ipv4 but Verizon doesn't have these or do they?

crashercarlton said:
I saw a post somewhere about changing some APN settings from ipv6 to ipv4 but Verizon doesn't have these or do they?
Click to expand...
Click to collapse
here you go.
http://apn-settings.com/verizon-4g-lte-apn-settings-detailed-configuration-steps/

Happened to me as well. I'm unlocked and rooted on a custom ROM. It just happened to me 2 hours ago. I had to reflash the ROM to gain service again. Bought from Motorola and used on Verizon with an activated sim.

Here too. Motorola bought using an activated verizon sim. Happened a few times. Once in a well covered 4g area. That time recovered on it's own.
Last night happened again. Reboot didn't fix, but airplane mode toggled on and then off did the trick.

I had to flash my ROM again and go through activation before I was able to regain service again. Not sure what happened.

This has been happening to me since last night. The signal icon shows I have half signal, but no LTE and it has an exclamation point on the bars.

idksomuch said:
This has been happening to me since last night. The signal icon shows I have half signal, but no LTE and it has an exclamation point on the bars.
Click to expand...
Click to collapse
Are you running a cm based ROM? Some cm Roms have different RIL's and can cause this. Mine is clean stock ROM so I'm not sure why it happened.

selayan said:
Are you running a cm based ROM? Some cm Roms have different RIL's and can cause this. Mine is clean stock ROM so I'm not sure why it happened.
Click to expand...
Click to collapse
It was actually my T-Mo account. It was suspended for having an overdue bill. It was our first bill with T-Mo and they never informed me that we were not signed up for paper bills, only paperless. I just made the online payment 20 mins ago and everything is working fine for everyone on our account. I also changed our paying options to paper billing. Thanks though!

idksomuch said:
It was actually my T-Mo account. It was suspended for having an overdue bill. It was our first bill with T-Mo and they never informed me that we were not signed up for paper bills, only paperless. I just made the online payment 20 mins ago and everything is working fine for everyone on our account. I also changed our paying options to paper billing. Thanks though!
Click to expand...
Click to collapse
You guys were starting to scare me here as I haven't had any issues.
Had to post... That is an awesome screen name

Larzzzz82 said:
You guys were starting to scare me here as I haven't had any issues.
Had to post... That is an awesome screen name
Click to expand...
Click to collapse
Well with my issue I have no idea why I lost service. I notice that with any ROM you flash the cell network on version stays on global. Even stock, I had mine set to LTE which said recommend but that may have been why I lost all service and had to reflash to get it back.

Fastboot oem config carrier vzw
Sent from my Nexus 6 using XDA Free mobile app

poitee said:
Fastboot oem config carrier vzw
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
What does this do?

selayan said:
What does this do?
Click to expand...
Click to collapse
+1

According to the cyanogenmod wiki it fixes the vzw data problems.

I'm going bonkers! I'll pay you 50 dollars to fix me!

I have a Note 4 Sm N910L from Korea. I live here in Japan at the moment. I bought the phone properly over Amazon and its new. I bought a data sim for it and it was working perfectly for about 7 weeks then one morning when I woke up there was no signal I have tried everything - updated from 444 to 501 then downgraded again UP and DOwn Maaany times. If I go near the Docomo store I can get connected again and it will stay connected for the 3km back to my home and then go off again when I reach home and not go back on - so I know the hardware still works ( I guess). It now just continually says Limited service or "your card is not authorised to use this network". Ive tried many other sims in the phone, none work.
If you can give me a step by step COMPLETE guide with links to any files I need to fix it, I'll pop 50 dollars in a paypal account the same day I can make my first skype call again!!! First person's info that actually does the job gets the money.
Love my phone and Im absolutely &%$'ed without it.
Hope you can help (the wife is out buying some rope and a straight-jacket as I type)

kazbluesk1 said:
I have a Note 4 Sm N910L from Korea. I live here in Japan at the moment. I bought the phone properly over Amazon and its new. I bought a data sim for it and it was working perfectly for about 7 weeks then one morning when I woke up there was no signal I have tried everything - updated from 444 to 501 then downgraded again UP and DOwn Maaany times. If I go near the Docomo store I can get connected again and it will stay connected for the 3km back to my home and then go off again when I reach home and not go back on - so I know the hardware still works ( I guess). It now just continually says Limited service or "your card is not authorised to use this network". Ive tried many other sims in the phone, none work.
If you can give me a step by step COMPLETE guide with links to any files I need to fix it, I'll pop 50 dollars in a paypal account the same day I can make my first skype call again!!! First person's info that actually does the job gets the money.
Love my phone and Im absolutely &%$'ed without it.
Hope you can help (the wife is out buying some rope and a straight-jacket as I type)
Click to expand...
Click to collapse
I loved the way you exposed your problem. I don't come here with a fix but only with few suggestions (so I don't deserve the 50 bucks) :
- check the pins of the sim slot
- check the back screws also and tighten them a little bit
- in network settings try to manually set provider and also choose only one mode (no auto 2g/3g/lte) preferably 2g only
Envoyé de mon SM-N910C en utilisant Tapatalk

It has happened to me with another phone. Turns out my SIM had failed, so it needed to be replaced. Sometimes it happens and it's quite easy to get a new one, so that would be the first thing I'd do if I were you. I hope you fix the problem soon!

Thanks but I tried the sim contacts I didnt notice any screws loose (except my own of course) I'll check (though not hopeful). I appreciate any suggestions.

iridaki said:
It has happened to me with another phone. Turns out my SIM had failed, so it needed to be replaced. Sometimes it happens and it's quite easy to get a new one, so that would be the first thing I'd do if I were you. I hope you fix the problem soon!
Click to expand...
Click to collapse
Iridaki, thank you. I ve tried 4 other sims from my provider in it and they dont want to work either. I feel it is more a software problem as it was alright when i went to sleep one night and the totally banjacked when i woke up in the morning. Im not sure though, just a noob at all this. Thank you for trying to help though.

googy_anas said:
I loved the way you exposed your problem. I don't come here with a fix but only with few suggestions (so I don't deserve the 50 bucks) :
- check the pins of the sim slot
- check the back screws also and tighten them a little bit
- in network settings try to manually set provider and also choose only one mode (no auto 2g/3g/lte) preferably 2g only
Envoyé de mon SM-N910C en utilisant Tapatalk
Click to expand...
Click to collapse
I just looked at my settings and i am unable to find any page where I can choose 2g or 3g or 4. When I rooted the phone a few days ago I remember downloading phone info which let me choose but that made no difference. Now my phone is unrooted again.
Thank you though googy

kazbluesk1 said:
Iridaki, thank you. I ve tried 4 other sims from my provider in it and they dont want to work either. I feel it is more a software problem as it was alright when i went to sleep one night and the totally banjacked when i woke up in the morning. Im not sure though, just a noob at all this. Thank you for trying to help though.
Click to expand...
Click to collapse
Ah I see.
I think I know what's going on.
The N910L supports the following frequencies: GSM 900/1800/1900, UMTS 850/1900/2100 and LTE Band 1, 3, 5, 7.
Docomo don't use GSM at all, instead they use UMTS 800/1700/2100 and LTE Band 1, 9, 19, 21, 28.
Basically your phone is not designed for the Japanese market, as it only supports two of the eight frequencies used by Docomo. The reason you had signal and still have around their store is probably because there's a tower that supports the UMTS 2100 or LTE Band 1 frequency. So you either moved recently or perhaps you didn't but one of the nearby towers was switched to a different, unsupported by your phone, frequency.

kazbluesk1 said:
I just looked at my settings and i am unable to find any page where I can choose 2g or 3g or 4. When I rooted the phone a few days ago I remember downloading phone info which let me choose but that made no difference. Now my phone is unrooted again.
Thank you though googy
Click to expand...
Click to collapse
In network settings , there should be a submenu where you can change it. You can also directly access it with long press on data connection icon in notification drawer
Envoyé de mon SM-N910C en utilisant Tapatalk

Service mode
try this code in the dialer *#0011# whenever you have signal it helps you to identify which band you are connected with
After that you can buy a signal repeater that support that band and bring signal to your home since its not that far distance 3km from docomo store : )

are you on 5.0.1 ?
some suggestions for you.
settings>mobile networks, there should be the preferred network type
check your access point names again, or try adding again, sending a message to provider would probably give u the settings. :fingers-crossed:

iridaki said:
Ah I see.
I think I know what's going on.
The N910L supports the following frequencies: GSM 900/1800/1900, UMTS 850/1900/2100 and LTE Band 1, 3, 5, 7.
Docomo don't use GSM at all, instead they use UMTS 800/1700/2100 and LTE Band 1, 9, 19, 21, 28.
Basically your phone is not designed for the Japanese market, as it only supports two of the eight frequencies used by Docomo. The reason you had signal and still have around their store is probably because there's a tower that supports the UMTS 2100 or LTE Band 1 frequency. So you either moved recently or perhaps you didn't but one of the nearby towers was switched to a different, unsupported by your phone, frequency.
Click to expand...
Click to collapse
Ive not moved recently, and my childrens phones on the same sim plan and provider works perfectly. Also no matter where I go I never get signal - except right outside doccomo shop. BUT phone worked perfectly for 7 weeks before with great signal. Something has changed regarding my phone I think. Maybe my phone got changed to different settings over the air or something.
Thank you

googy_anas said:
In network settings , there should be a submenu where you can change it. You can also directly access it with long press on data connection icon in notification drawer
Envoyé de mon SM-N910C en utilisant Tapatalk
Click to expand...
Click to collapse
When I long press I get a tick box for allowing a Data network and the Just access point settings tab. No tab for choosing 2g 3g 4g LTE etc.
Thanks

azizski said:
try this code in the dialer *#0011# whenever you have signal it helps you to identify which band you are connected with
After that you can buy a signal repeater that support that band and bring signal to your home since its not that far distance 3km from docomo store : )
Click to expand...
Click to collapse
Hello Azizski, I checked *#0011# and the top one says DLCH 10736 ULCH 9786
the other seemingly relavent lines say
MM Cause 0 IDLE/DISCONNECTED-SERVICE
GMM Cause 0 DEREGISTERED/LIMIT
RCC DISCONN RSSI/TX 89/0
Whatever that all means.
Thank you for your help.

are you on 5.0.1 ?
some suggestions for you.
settings>mobile networks, there should be the preferred network type
check your access point names again, or try adding again, sending a message to provider would probably give u the settings. :fingers-crossed:

devilxvergil said:
are you on 5.0.1 ?
some suggestions for you.
settings>mobile networks, there should be the preferred network type
check your access point names again, or try adding again, sending a message to provider would probably give u the settings. :fingers-crossed:
Click to expand...
Click to collapse
Hi, I've input the settings maybe a hundred times now - I can do it from memory almost with my eyes shut . The settings are the same as what workedfor 7 weeks. The guy at the counter of my provider input them too - they dont work anymore.. There is only one access point that used to work.
iijmio
iijmio.jp
[email protected]
iij
chap or pap
Thanks for your help. I stlll feel the problem is something software or update based, maybe the modem has been changed somehow. Or another setting deep inside the phone.
Does flashing an update also flash a new modem and baseband?

devilxvergil said:
are you on 5.0.1 ?
some suggestions for you.
settings>mobile networks, there should be the preferred network type
check your access point names again, or try adding again, sending a message to provider would probably give u the settings. :fingers-crossed:
Click to expand...
Click to collapse
Hi Yup Im on 501. Was on the phone to them 3 times last week - last time for 2 hours - nothing they say seems to work.
Thank you for your help though.

Why you dont try flashing kitkat or first lolipop u get whit odin?
Install from Play Store ☆Phone info☆Samsung and check your CSC code than go to sammmobil and download right FW...flash whit ODIN and u will be see...
*Oh sorry u allready tried that... Maybe to flash different modem?

kazbluesk1 said:
my childrens phones on the same sim plan and provider works perfectly.
Click to expand...
Click to collapse
And, just to clarify, your children have Note 4 phones, with the exact same model number (N910L)?

Jovan1997 said:
Why you dont try flashing kitkat or first lolipop u get whit odin?
Install from Play Store ☆Phone info☆Samsung and check your CSC code than go to sammmobil and download right FW...flash whit ODIN and u will be see...
*Oh sorry u allready tried that... Maybe to flash different modem?
Click to expand...
Click to collapse
Hi, Yes, I want to try to flash a new modem but Im not sure about the procedure and exactly which files I need. I have tried to flash a few modems via ZOdin but I keep getting a nand write fail. Im a noob at this and am obviously doing something wrong. If you can tell me exactly how to do it I'd be very greatful.
Ian

iridaki said:
And, just to clarify, your children have Note 4 phones, with the exact same model number (N910L)?
Click to expand...
Click to collapse
Hi Iridaki,
Nope they have 2 old iphone 4 s' using the same data sim as me. (iijmio ((basically docomo)) ). Sorry about not being clear about that.

Note korean version call issue

Hello all,
anyone with the N version and has call issue like your calls will go straight to vm ?
i called my phone many times and it never rang
maybe i need to flash a different CSC ? I'm not sure
thanks

TheUndertaker21 said:
Hello all,
anyone with the N version and has call issue like your calls will go straight to vm ?
i called my phone many times and it never rang
maybe i need to flash a different CSC ? I'm not sure
thanks
Click to expand...
Click to collapse
Didn't have any issues with mine out of the box or now that I've finally got all the T-Mobile stuff working with it's CSC and apps. I've called out and received calls in both circumstances and had zero issues. What provider are you with here?

Kalm_Traveler said:
Didn't have any issues with mine out of the box or now that I've finally got all the T-Mobile stuff working with it's CSC and apps. I've called out and received calls in both circumstances and had zero issues. What provider are you with here?
Click to expand...
Click to collapse
Mine was some Band LTE I think.
Gonna try your link and see
Edit: your link you gave me fixed the issue.
Thanks.
Sent from my SM-N950F using XDA-Developers Legacy app

Kalm_Traveler said:
Didn't have any issues with mine out of the box or now that I've finally got all the T-Mobile stuff working with it's CSC and apps. I've called out and received calls in both circumstances and had zero issues. What provider are you with here?
Click to expand...
Click to collapse
How did you get the tmobile csc? I was having call issues too but when i changed the ims settings and enabled volte calls got better but when im in a area with bad lte service calls are taking long to go thru. Could that be a csc issue? Also i dont see a link that the op is saying you provided that fixed the problem

AssAssiN FtC said:
How did you get the tmobile csc? I was having call issues too but when i changed the ims settings and enabled volte calls got better but when im in a area with bad lte service calls are taking long to go thru. Could that be a csc issue? Also i dont see a link that the op is saying you provided that fixed the problem
Click to expand...
Click to collapse
Extracted it from the T-mobile ROM and dropped the files into a CSC changer flashable zip for an S8, modified it so it would work on my Note 8 and flashed it.

AssAssiN FtC said:
How did you get the tmobile csc? I was having call issues too but when i changed the ims settings and enabled volte calls got better but when im in a area with bad lte service calls are taking long to go thru. Could that be a csc issue? Also i dont see a link that the op is saying you provided that fixed the problem
Click to expand...
Click to collapse
that was my issue
i spent 45 mns on t mobile call then i realized why i'm calling them since my phone isn't a t mobile one lol
i flashed Kalm file
and that fixed my issue
hopefully the main dev can port it over
i don't think he's gonna be too happy with his file being modified like that

TheUndertaker21 said:
that was my issue
i spent 45 mns on t mobile call then i realized why i'm calling them since my phone isn't a t mobile one lol
i flashed Kalm file
and that fixed my issue
hopefully the main dev can port it over
i don't think he's gonna be too happy with his file being modified like that
Click to expand...
Click to collapse
ah I didn't even think about someone being upset about it. If he is I'll take the link down. I just wanted to share for anyone else in our situation since there is no official Note 8 CSC changer at the moment.

Kalm_Traveler said:
Extracted it from the T-mobile ROM and dropped the files into a CSC changer flashable zip for an S8, modified it so it would work on my Note 8 and flashed it.
Click to expand...
Click to collapse
I found the file in your other thread i just Odin it no root needed right? Thanks in advance

Not Odin, it is a flashable zip so you'll need a custom recovery and probably root

Kalm_Traveler said:
Not Odin, it is a flashable zip so you'll need a custom recovery and probably root
Click to expand...
Click to collapse
Ok cool glad i asked before i did anything lol

Ended up calling t mobile and they had me reset my network settings then turn off my phone while they did something on their end. Turned my phone back on and boom no more problems. Didn't want to try root yet until there was a more stable one available. Thanks for all the help

Kalm_Traveler said:
Not Odin, it is a flashable zip so you'll need a custom recovery and probably root
Click to expand...
Click to collapse
Do you have a link to the CSC file your talking about. I could use it also. I just got my note 8 yesterday from the same place you picked yours up, thanks

gubbilo144 said:
Do you have a link to the CSC file your talking about. I could use it also. I just got my note 8 yesterday from the same place you picked yours up, thanks
Click to expand...
Click to collapse
yeah it's in my thread here https://forum.xda-developers.com/showpost.php?p=73858645&postcount=17
But I redid it last night after someone confirmed that they didn't even need the Note 8 CSC files, and I deleted out everything for other carriers so the new file is only about 120mb instead of 300-something.
I can post that up after work if you want to wait, uploading is blocked here at work for some reason.
Have to add that wifi calling still doesn't seem to be working, but VoLTE does since calling does not drop me from LTE. I have no menu settings for either still, but after doing a full reset, reflashing etc I have the wifi calling quick toggle but it doesn't seem to turn on all the way - the "on" color is light-grey instead of white like everything else (dark grey when off) and in the System UI tuner app, no icon is set for Wifi Calling or VoLTE.

Kalm_Traveler said:
But I redid it last night after someone confirmed that they didn't even need the Note 8 CSC files, and I deleted out everything for other carriers so the new file is only about 120mb instead of 300-something.
I can post that up after work if you want to wait, uploading is blocked here at work for some reason.
Click to expand...
Click to collapse
Howdy. Did you post this anywhere yet? My phone is on it's way. Thanks for the seller tip.

Pinan said:
Howdy. Did you post this anywhere yet? My phone is on it's way. Thanks for the seller tip.
Click to expand...
Click to collapse
Yeah it's in my Exynos T-mobile CSC thread but I've got a better smaller one now. I took a pack that @TEKHD made for the S8+ F variant and switched out the files with Note 8 T-mobile files but there is a little bit left to go to make WiFi Calling work on our N950N, VoLTE works, HD voice works, video calling works, but I'm still trying to figure out what's missing for WiFi calling. It's menu isn't even showing up yet.
Current flashable zip is only 88mb and I'm fairly sure whenever I figure out the remaining files that need to be copied over it won't be much larger.

Kalm_Traveler said:
Yeah it's in my Exynos T-mobile CSC thread but I've got a better smaller one now.
Click to expand...
Click to collapse
Right. The better smaller one is the one I'm looking for. I already had downloaded the older/larger one, then I saw your post.
Is the smaller one available?

Pinan said:
Right. The better smaller one is the one I'm looking for. I already had downloaded the older/larger one, then I saw your post.
Is the smaller one available?
Click to expand...
Click to collapse
I'm about to do a factory Odin flash to stock and test the latest version - if it works properly I'll post it up with a link - though I don't want to step on anyone's toes since the core script and idea belongs to TEKHD.
Fair warning as far as right now I still haven't figured out why WiFi Calling is missing, I set up this the same way he has his S8+ pack for their F variant aside from adding a few framework files that I found referenced in the Tmo Wifi Calling apk that don't exist on a factory Korean N950N but are on the Tmo ROM, and my theory if this next attempt doesn't enable WiFi Calling is that the N950N is fundamentally either just missing more files that need to be in place for it to work and I haven't found them yet, or that it has different/incompatible versions of some files that the T-Mobile Wifi Calling needs to function.
In other words I have 2 more things to test, then I am going to try fully wiping, flashing an N950F-based ROM and apply the T-Mobile WFC pack to that, since the S8/S8+ options that enable it for those folks are for the F variants, not the N variant but the F and N have the same hardware.

Kalm_Traveler said:
I'm about to do a factory Odin flash to stock and test the latest version - if it works properly I'll post it up with a link - though I don't want to step on anyone's toes since the core script and idea belongs to TEKHD.
Fair warning as far as right now I still haven't figured out why WiFi Calling is missing, I set up this the same way he has his S8+ pack for their F variant aside from adding a few framework files that I found referenced in the Tmo Wifi Calling apk that don't exist on a factory Korean N950N but are on the Tmo ROM, and my theory if this next attempt doesn't enable WiFi Calling is that the N950N is fundamentally either just missing more files that need to be in place for it to work and I haven't found them yet, or that it has different/incompatible versions of some files that the T-Mobile Wifi Calling needs to function.
In other words I have 2 more things to test, then I am going to try fully wiping, flashing an N950F-based ROM and apply the T-Mobile WFC pack to that, since the S8/S8+ options that enable it for those folks are for the F variants, not the N variant but the F and N have the same hardware.
Click to expand...
Click to collapse
Sounds good. I went through the same things with my Note 2 years ago. I figured it out and got WiFi Calling working.
Fwiw, I have no interest in Wifi Calling on my Note 8, as my signal (also T-Mobile) is always good, and I use Hangouts (or whatever) when I'm on Wifi, for free calling.
I don't have Note 8 yet, but will order soon from the same seller as you.
Do you have any other suggestions for getting everything up and running for T-Mobile (except WiFi Calling), or is simply flashing the CSC file?

Pinan said:
Sounds good. I went through the same things with my Note 2 years ago. I figured it out and got WiFi Calling working.
Fwiw, I have no interest in Wifi Calling on my Note 8, as my signal (also T-Mobile) is always good, and I use Hangouts (or whatever) when I'm on Wifi, for free calling.
I don't have Note 8 yet, but will order soon from the same seller as you.
Do you have any other suggestions for getting everything up and running for T-Mobile (except WiFi Calling), or is simply flashing the CSC file?
Click to expand...
Click to collapse
If you don't care about Wifi Calling yeah I would say just root, custom kernel, and flash the CSC. You'll get VoLTE, HD voice, video calling etc

Kalm_Traveler said:
If you don't care about Wifi Calling yeah I would say just root, custom kernel, and flash the CSC. You'll get VoLTE, HD voice, video calling etc
Click to expand...
Click to collapse
Ahhhh, of course. I'd forgotten about the kernel. Suggestions?
Thank you for the assist.

[Guide] Boost Cell Signal to Max & Force CA/Volte/Vowifi if avail from Stock ROM

This little trick will change your measly 1 bar signal to nearly max bars and give you a solid consistent signal in places you normally would hardly have a connection. At least it did for me.
This goes a bit beyond enabling VoLTE from your SIM Card Network settings which if you haven't done you should enable before trying this... Of course you may not have the same results I had. I found it works best from Stock ROM no root needed I'm currently on 9.0.12 but tried it on 9.0.11 and Beta 5.
Like any mod you should make a backup now and proceed with caution. (By caution I mean don't deviate from instructions goofing around in any engineering mode is never wise)
You should try check your internet speed now (Google internet speed! And take note of it then run the same test to see if your able to improve at all.
Step 1: Optional step but for best results open dialer and type: *#*#4636#*#* From this Testing Menu select Phone Information. Once in phone info select LTE/UMTS auto (prl) for preferred Network type. Then scroll down a bit and make sure VoLTE is switched on. Exit the phone info screen.
Step 2: Open Dialer again and type: *#800#
A Warning Message to Engineering Mode will popup. Press Enter.
Step 3: Click on the first option Called OnePlusLogKit
Once in the LogKit scroll down until you see the menu called: FunctionSwitch now click and select it.
Step 4: There's 3 checkboxes of interest in this menu... VoLTE Switch, VoWifi Switch and VT Switch. I enable all three but some may have better luck not enabling VT Switch. After enabling each option it'll try and reboot your phone just say no until you have all you want enabled.
Now reboot and profit.
I can tell you without a doubt that if your using a stock OOS Rom and using TMobile as your provider that these changes will not eat up your battery any more than normal and altho depending on your location and towers speed availability this can and will increase your overall speed and your ability to maintain a solid connection in low signal areas! It forces carrier aggration meaning it makes the modem in your phone connect multiple times over varied frequencies to achieve the highest level of connection. Like your old 4g phone x 3 up to 6 put together. So your speeds can be 600% improved. Of course the phone is technically supposed to do this on its own which it can occasionally but only in absolutely optimal situations. So not when you really need it too. Lol. So altho it might not work on carriers without this tech or overseas if u live in North America and use TMobile this will drastically help your phone whether you instantly notice it or not trust me it does!
f you notice anything negative or battery draining or your phone becomes even more radioactive simply go back into the menu and disable the Functions. If this helped you at all throw me a like. Enjoy.

Omg you have saved me. A million thanks. I switched to TMobile after getting this phone and the internet speed has been utterly garbage I've been going through hell with tech support trying to get useable speed. As you can see this made a world of difference.

Is there a way to do this ob pixel 2 xl?

Same...
bladestonez said:
Omg you have saved me. A million thanks. I switched to TMobile after getting this phone and the internet speed has been utterly garbage I've been going through hell with tech support trying to get useable speed. As you can see this made a world of difference.
Click to expand...
Click to collapse
Wow judging by your screenshot that's like 600% increase in service/speed!! Glad that I could help! I was in exactly the same spot you were in. For the life of me couldn't figure out why my Moto e got better service out here in the boonies I'm lucky to get a bar at that time.... Tried countless different methods techniques and apps with no success. Finally I talked T-Mobile into sending me a signal booster but that would only Boost whatever signal it could pickup itself.... So I have it 50yards from the house with an extension cable in a sealed bucket wrapped in towels just to get around 2-4mbs a sec download speeds n that was shotty every blizzard id get no service or **** would blow over n grounds frozen so unless I want to pay $150 for internet I can't watch anything n my son couldn't play his Fortnite.... I finally figured it out a couple days ago n haven't noticed any negative or side effects from the mod. If I get into an area with LTE+ and CA I can go faster than my buddies AT&T5Ge lol or around 130Mbs but before the hack in the same spot I'd average around 15mbs. I'm curious if people are having speed improvements with WiFi signals I don't have a good one so I couldn't test it. I can confirm flashing the Oos based custom roms or Magisk ROMs either before or after greatly slows/lags/retards signal quality and speed. I'm going to work on a ROM that doesn't and also has tethering throttle bypass built in... I'm thinking the reasons they slow everything down is because their all overseas ports rather than base it off a 6t stock.... Anyways thanks again for sharing ur results bladestonez and I
Appreciate the screenshot!:laugh::good::victory:

WillowTree said:
Is there a way to do this ob pixel 2 xl?
Click to expand...
Click to collapse
I'm sure there is to some extent as long as the device has a newer qcom modem and supports Carrier Aggregation & VoLTE in theory this would work for it. But without having the device to test with I couldn't tell you how to do it. Your probably gonna b messing around with dialer codes that lead to engineering modes. Sorry wish my Pixel2 didn't run off last year I'd be a lot more help.:crying:

Why has to be LTE/UMTS? Mine has everything enabled except network type is LTE/WCDMA. It seems there is not too much difference.
Sent from my ONEPLUS 6T using Tapatalk

ma678 said:
Why has to be LTE/UMTS? Mine has everything enabled except network type is LTE/WCDMA. It seems there is not too much difference.
Click to expand...
Click to collapse
UMTS is mainly for MMS support while normal texts are already sent through lte. Anyone who's CDMAless should be on LTE/umts

I have tmobile and verizon dual sim setup, does this apply to this guide too?

It doesn't.
ma678 said:
Why has to be LTE/UMTS? Mine has everything enabled except network type is LTE/WCDMA. It seems there is not too much difference.
Sent from my ONEPLUS 6T using Tapatalk
Click to expand...
Click to collapse
For all intensive purposes step 1 isn't necessary but if your using tmobile I've found that it will give you a more solid and reliable connection. But ur right this is an optional step however like @sonic1675 said unless your using Verizon or some cdmaish why have anything cdma related enabled? For step one any network type is allowed. But for TMO from my own personal experiences I prefer to use the LTE/umts but to each his own real question is did the mod work well on your Wcdma/LTE setup?

It's 4Anyone.
@humblehyper Verizon is fine to try it with. If u could do a before and after speed test comparison with screenshots to show your fellow vzw folk it works that'd be awesome.
But yeah this mod will work on OnePlus 4,5, 6/6t any carrier any location as long as the engineering apps are accessible and the same as the lay out describe...

gigilie said:
I'm sure there is to some extent as long as the device has a newer qcom modem and supports Carrier Aggregation & VoLTE in theory this would work for it. But without having the device to test with I couldn't tell you how to do it. Your probably gonna b messing around with dialer codes that lead to engineering modes. Sorry wish my Pixel2 didn't run off last year I'd be a lot more help.:crying:
Click to expand...
Click to collapse
I appreciate that you atleast answered. I do want a oneplus 6t but waiting for a good deal to buy it for.
Do you know anybody i can get help from?

Tmo here. I get better service without the VT
Last 2 test disabled vs previous 3 enabled vs previous 2 disabled
Thanks for the tip... Now to try by work... My first couple test scores

I'm also on T-Mobile and followed the guide. Definite improvement with download speeds, upload is still meh.
All 4 tests are done in the same location, the top 2 are the results after making the changes, and the result at the very top in orange (?) is single mode testing because I use AdGuard.
In case anyone is wondering why my Speedtest app looks different, it's because I use a smaller display size.
EDIT: Fixed screenshot upload, as AdGuard for some reason broke it.

Hey, why can't I activate VoLTE in the first step? The switch is grey and cannot be checked.

Did anyone try to check if VoLTE/VoWifi work after doing this? I have an unlocked Tmo variant but converted to OOS with active dual sim cards and I lost internet everytime while on a call. I was curious to try but did not work for me. I might be wrong but I think this trick might help ppl with single sim card or with other carriers like AT&T and Verizon from another forum here https://forum.xda-developers.com/oneplus-6t/help/att-verizon-volte-vowifi-calling-t3860031.

gigilie said:
This little trick will change your measly 1 bar signal to nearly max bars and give you a solid consistent signal in places you normally would hardly have a connection. At least it did for me.
This goes a bit beyond enabling VoLTE from your SIM Card Network settings which if you haven't done you should enable before trying this... Of course you may not have the same results I had. I found it works best from Stock ROM no root needed I'm currently on 9.0.12 but tried it on 9.0.11 and Beta 5.
Like any mod you should make a backup now and proceed with caution. (By caution I mean don't deviate from instructions goofing around in any engineering mode is never wise)
You should try check your internet speed now (Google internet speed! And take note of it then run the same test to see if your able to improve at all.
Step 1: Optional step but for best results open dialer and type: *#*#4636#*#* From this Testing Menu select Phone Information. Once in phone info select LTE/UMTS auto (prl) for preferred Network type. Then scroll down a bit and make sure VoLTE is switched on. Exit the phone info screen.
Step 2: Open Dialer again and type: *#800#
A Warning Message to Engineering Mode will popup. Press Enter.
Step 3: Click on the first option Called OnePlusLogKit
Once in the LogKit scroll down until you see the menu called: FunctionSwitch now click and select it.
Step 4: There's 3 checkboxes of interest in this menu... VoLTE Switch, VoWifi Switch and VT Switch. I enable all three but some may have better luck not enabling VT Switch. After enabling each option it'll try and reboot your phone just say no until you have all you want enabled.
Now reboot and profit.
If you notice anything negative or battery draining or your phone becomes even more radioactive simply go back into the menu and disable the Functions. If this helped you at all throw me a like. Enjoy.
Click to expand...
Click to collapse
Wow!! Works like a charm!!!

Will this work with any operator, or t-mobile only? I'm from Argentina, here i have Claro and no VoLTE, VoWiFi and nothing like that.
Sent from my OnePlus6T using XDA Labs

On VZW I was on and have tested this previously, LTE/TD-SCDMA/UMTS as this was the default. It performed fine. I switched to LTE/UMTS, the signal/speed is basically identical.
Default bands are usually 13 with both primary and neighbor but sometimes switches to band 4 or vanishes as only a primary and no neighbor on both settings. So, obviously just telling the radio it can use TC-SCDMA even CDMALess makes no difference since my SIM and phone is provisioned by VZW to only use LTE/UMTS anyway.
So going from LTE/TC-SCDMA/UMTS to LTE/UMTS Auto (PRL) from the original doesn't really do anything for the tower it connects to for me personally or speeds.
Also, the other tweaks did nothing but make things slower in the other menu.

Error: "Connection problem or invalid MMI code" after dialing *#800#. any idea? tia
unlocked TMO OP6t, converted to Int'l OOS 0.0.12 Dual Sim

ysfk7 said:
Error: "Connection problem or invalid MMI code" after dialing *#800#. any idea? tia
unlocked TMO OP6t, converted to Int'l OOS 0.0.12 Dual Sim
Click to expand...
Click to collapse
Use stock dialer. Google dialer doesn't work.