Develop Bugs

Can the TMobile S3 work on their refarmed 3G (1900MHz) network?

Hi,
From the specs, the TMobile S3 supports 1900MHz 3G network.
Does anyone know for sure if the TMobile S3 work on their refarmed 3G (1900MHz) network?
If yes, how do you change from the current 3G freq to the refarmed freg?
Thanks.

They are in the orocess of refarming. Some places are done, some are not. The phone should automatically choose the best available band to use. There are ways to force it by using the service menus actvated by dialer code, but it's a hassle to mess with every time. Plus, on the T999 I don't think you will ever see it say 3G without a mod. So you coukd be using it but it woukd say H or still 4G because of the way its coded. (If I'm remembering right)
Sent from my SGH-T999 using xda app-developers app

Yes, the Galaxy S3 does support 3G PCS(1900 Mhz). If you wanted to know what band you're using, just type *#0011# in the Phone app. In the first line, you will see something like "Band4" in the first line, which will tell you what band you're on. Band4 means AWS (1700/2100). Band2 means PCS (1900).
To force a certain band, type *#197328640# in the Phone app and then hit the following in the secret menus: [1]UTMS -> [1] DEBUG SCREEN -> [8]PHONE CONTROL -> [7]NETWORK CONTROL -> [2]BAND SELECTION.

It's "reframed" not "refarmed".
Sent from my SGH-T999 using xda premium

No its refarmed. Meaning that they were using it in the GSM system and had to carve it out for use in the UMTS system. Yes the Galaxy s3 will work on UMTS 1900. It is best though to let the phone decide as the carrier is using settings to best choose where you should be. For instance the single 1900 UMTS carrier wont be able to support HSPA 42+ until they add a 2nd 1900 Mhz carrier.

sorry erase this comment
Sent from my SGH-I747 using Tapatalk 2

Thank you all for your replies. I will get the phone in a few weeks and try it out.
DocHoliday77 said:
The phone should automatically choose the best available band to use.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Will the phone know if a node is congested?
At my work place, my HTC Sensation 4G shows a "H" with good signal (4 bars). But the data speed is really slow, around 100kbps. My guess is that either the node is congested, or the current 3G signal is blocked by the building. My thinking is that if I switch to the new freg (when it is available), there will be less users and the signal will penetrate building better so my speed will improve.
Will the S3 save me in this situation, or my thinking is completely off?

http://www.airportal.de/

foit2 said:
To force a certain band, type *#197328640# in the Phone app and then hit the following in the secret menus: [1]UTMS -> [1] DEBUG SCREEN -> [8]PHONE CONTROL -> [7]NETWORK CONTROL -> [2]BAND SELECTION.
Click to expand...
Click to collapse
You can actually jump right to the band selection screen with *#2263#

Want LTE on your Korean Note 2 sgh-i317

This may work on other devices and carriers having this same issue. And know were your phone was made to help others. Look under your battery to find were it was made
I started this thread cause over the past 2 years their has been speculation that it's the sgh-i317 made in Korea that's not getting LTE out of the box. I tried everything. Changing my imei, nv items, roms, modems, etc...
Turns out that I successfully was able to get LTE a 1 1/2 - 2 years ago but really didn't know exactly how I did it. I was helping @Trash213 and rediscovered what I had done. Turns out It's a provisioning error that happens when the sim is placed in that phone for the first time and messes up that line forever. Asking T-Mobile to refresh the provisions does not help but they may give you a free sim.
DO NOT PUT THE SIM CARD IN YOUR PHONE FIRST
The Sim card must first be installed into another
T-Mobile LTE device or registered on one
First thing you need to do, is put your note 2 in LTE all by dialing *#2263# and selecting lte band prefrance then selecting lte all.
Get a new T-Mobile Sim Card.
Or put your Sim card in another t mobile lte device and dial *#2263# select lte band preference and then select lte all. Hit home button got to settings more networks change default operater to manual. Then select t mobile to register it. Don't forget to change the band prefrance back to automatic. It's the first choice in *#2263# menu. If you are successful at fixing your Sim card you may skip the next step.
Once the T-Mobile phone boots go to
settings, about, status.
When you see your phone number ( you may have to reboot or make a phone call ) you can then power off the device and remove the sim card.
Put the sim card in the Korean made sgh-i317 and if you are in a strong LTE area it should come up first next to your signal bars.
If still no lte then hit home button go to settings more networks change default operater to manual. Then select t mobile to register it.
Check that you are getting LTE either by looking at the signal bars or by going to settings, about, status.
Once you see that you are getting LTE go back to phone dialer and type *#2263# and select automatic.
For more information on this service mode code see
http://forum.xda-developers.com/showpost.php?p=47934927&postcount=7609&nocache=1&z=5848805580753833
Hope this helps all those phones that couldn't get lte out of the box.​

Lookin good, lookin good. Thanks for this, for those that are having this issue. Really made things quite simple.

Damn now if only I had a phone to put the new SIM inside. I've been trying forever to get LTE on this phone ?

xBkKx said:
Damn now if only I had a phone to put the new SIM inside. I've been trying forever to get LTE on this phone ?
Click to expand...
Click to collapse
Go get the sim find a friend only takes a couple minutes
Make the t mobile rep put in their phone

billb23ok said:
Go get the sim find a friend only takes a couple minutes
Click to expand...
Click to collapse
I know literally no one with t-mobile. It's all Sprint, AT&T, and Verizon lol

xBkKx said:
Damn now if only I had a phone to put the new SIM inside. I've been trying forever to get LTE on this phone ?
Click to expand...
Click to collapse
Literally only take a few seconds. Once the phone number registers on the network it can come right out of the other persons phone and back into your phone. Bam LTE forever as long as you don't screw it up lol.

xBkKx said:
I know literally no one with t-mobile. It's all Sprint, AT&T, and Verizon lol
Click to expand...
Click to collapse
Make the t mobile rep put it in their phone

xBkKx said:
I know literally no one with t-mobile. It's all Sprint, AT&T, and Verizon lol
Click to expand...
Click to collapse
It can be a total stranger. Or a cool tmobile worker. Or a cheap tmobile gsm lte compatible phone you can purchase (cracked screen or something as long as it comes on) if worse come to worse lol
---------- Post added at 08:58 PM ---------- Previous post was at 08:58 PM ----------
billb23ok said:
Make the t mobile rep put in their phone
Click to expand...
Click to collapse
Lmfao. If he's cool he might just do that

While this may be great information, this is certainly not development since you didn't "make this" - moved to general where it belonged in the first place. @billb23ok - Take this as your warning - Please do not create threads in development sections without knowing if it's appropriate. Thanks.

DutchDogg54 said:
While this may be great information, this is certainly not development since you didn't "make this" - moved to general where it belonged in the first place. @billb23ok - Take this as your warning - Please do not create threads in development sections without knowing if it's appropriate. Thanks.
Click to expand...
Click to collapse
Kinda harsh don't ya think? Just saying this is great info and might be the first time he ever posted a thread. Maybe he didn't know the RULES. Just saying you could have had a bit nicer approach to the situation. Sorry for his approach @billb23ok

psycho4us4 said:
Kinda harsh don't ya think? Just saying this is great info and might be the first time he ever posted a thread. Maybe he didn't know the RULES. Just saying you could have had a bit nicer approach to the situation. Sorry for his approach @billb23ok
Click to expand...
Click to collapse
Please save comments like this for PM in the future. Your opinion of moderating activity is not something that should be posted on public forums. Consider this your warning.
The fact that he may not have known the rules doesn't change whether he's subject to them. No one said you had to like the rules, just that you have to follow them. Carry on.

I didn't really followed this method but i flashed this room
http://forum.xda-developers.com/showthread.php?t=2541860&page=1051
And i have s4 on which my phone was getting t-mobile lte and
when i changed the sim back to note 2 am getting lte even when it drops to 4g/3g it goes back to lte.
I'm happy with my note 2.

justforgot said:
I didn't really followed this method but i flashed this room
http://forum.xda-developers.com/showthread.php?t=2541860&page=1051
And i have s4 on which my phone was getting t-mobile lte and
when i changed the sim back to note 2 am getting lte even when it drops to 4g/3g it goes back to lte.
I'm happy with my note 2.
Click to expand...
Click to collapse
Is your note 2 made in china. Check under your battery.
This is for the note 2 i317 made in Korea that are having trouble connecting LTE at all with any rom or phone the sim is put into

I'm going to try this later on today. I'll get back to you with the results. There's a new T-Mobile store down the Street from where I live.

Thanks for the hint, and I tried that. However, when I select "LTE ALL", my phone shows "Unknown" under "Mobile Network Type" of the Device Status.
T Mobile just upgrades their LTE my area, and currently the 4G/LTE is very strong in my T Mobile S5 phone.
AT&T unlocked my SGH-i317 Note II last year after my contract ended. Therefore, I want to use with TMobile, but I can only connect up to 4G.
Do I need to upgrade its APN for the radio in order to receive LTE in my area? Thanks in advanced.
Android Version: 4.4.2
Baseband version: I317UCUCNE5
Kernel version: 3.0.31-1728680
Build number: KOT49H.I317UCUNE5
SE for Android status: Enforcing SEPF_SAMSUNG-SGH-I317_4.4.2_0016

mtdv said:
Thanks for the hint, and I tried that. However, when I select "LTE ALL", my phone shows "Unknown" under "Mobile Network Type" of the Device Status.
T Mobile just upgrades their LTE my area, and currently the 4G/LTE is very strong in my T Mobile S5 phone.
AT&T unlocked my SGH-i317 Note II last year after my contract ended. Therefore, I want to use with TMobile, but I can only connect up to 4G.
Do I need to upgrade its APN for the radio in order to receive LTE in my area? Thanks in advanced.
Android Version: 4.4.2
Baseband version: I317UCUCNE5
Kernel version: 3.0.31-1728680
Build number: KOT49H.I317UCUNE5
SE for Android status: Enforcing SEPF_SAMSUNG-SGH-I317_4.4.2_0016
Click to expand...
Click to collapse
Try putting in lte all then manually registering on the network. If lte shows up change it back to automatic. Let me know if it helps

Thanks
billb23ok said:
Try putting in lte all then manually registering on the network. If lte shows up change it back to automatic. Let me know if it helps
Click to expand...
Click to collapse
I manually select each LTE selection, but none shows up. Here is the list
[1] LTE B2
[2] LTE B3
[3] LTE B4
[4] LTE B5
[5] LTE B7
[6] LTE B8
[7] LTE B17
[8] LTE B20
[9] LTE ALL
Any other idea, please? Thanks.
P.S.
I was briefly saw the LTE logo appearing under the 4G logo in a fraction of a second, and it disappeared until now.

Try this
back up NV items with NV reader writer
to learn how to use it and download it click below link
http://forum.xda-developers.com/showthread.php?t=1804117
go to phone and dial *#197328640#
Select 1 umts
6 common
6 NV rebuild
3 back up if none exists phone may or may not restart after backup
2 erases all efs 1/2/3
When phone boots
go to phone dialer
*#197328640#
1 umts
6 common
6 NV rebuild
4 restore
when phone boots
restore the nv items you backed up with NV reader writer when phone boots
then restore the below file with NV reader writer
https://www.dropbox.com/s/xhl9gvov9lx2mo3/i317imei0.txt?dl=0
when phone boots
In phone dial
*#2263#
Select lte band prefrance
select lte all
hit home button
go to settings
more networks
Mobile networks
mobile operators
select default setup and select manual
select t Mobile after registering it should get lte
then go to phone dialer and type *#2263#
And select automatic
done
Your imeI in status will say 0 or unknown
this is OK while on t Mobile
if you want to go back to at&t then restore the nv backup you made to restore you original imei. So don't delete it you may need that back up some day down the line.

billb23ok said:
Try this
back up NV items with NV reader writer
to learn how to use it and download it click below link
http://forum.xda-developers.com/showthread.php?t=1804117
go to phone and dial *#197328640#
Select 1 umts
6 common
6 NV rebuild
3 back up if none exists phone may or may not restart after backup
2 erases all efs 1/2/3
When phone boots
go to phone dialer
*#197328640#
1 umts
6 common
6 NV rebuild
4 restore
when phone boots
restore the nv items you backed up with NV reader writer when phone boots
then restore the below file with NV reader writer
https://www.dropbox.com/s/xhl9gvov9lx2mo3/i317imei0.txt?dl=0
when phone boots
In phone dial
*#2263#
Select lte band prefrance
select lte all
hit home button
go to settings
more networks
Mobile networks
mobile operators
select default setup and select manual
select t Mobile after registering it should get lte
then go to phone dialer and type *#2263#
And select automatic
done
Your imeI in status will say 0 or unknown
this is OK while on t Mobile
if you want to go back to at&t then restore the nv backup you made to restore you original imei. So don't delete it you may need that back up some day down the line.
Click to expand...
Click to collapse
2 erases all efs 1/2/3
When phone boots
go to phone dialer
*#197328640#
1 umts
6 common
6 NV rebuild
4 restore
I don't understand this part when I select 2 to erase the EFS the backup gets deleted too so option 4: Restore is not available so skipping that part I just restored the backup I did with the program which doesn't make the phone reboot so I did it manually and at this point I'm left back at the start as I just made a circle. Restoring the provided file and rebooting phone leaves me with an unknown IMEI. #06# displays " / 11" and a signal of UMTS still. At this point going into the service menu and selecting LTE ALL disables my data and puts me on an Unknown network that I cannot do anything on, when I manually search for a network I get T-Mobile; 311660; AT&T; Verizon and selecting T-Mobile just says Unable to connect. Try later. Switching the band selection back to automatic phones goes back onto UMTS like I did nothing (other than make my IMEI null)
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Put the the sim in
another t Mobile lte device. If it doesn't get lte on that then you will have to
*#2263#
select lte band prefrance
select lte all
hit home button
go to settings
more networks
Mobile networks
mobile operators
select default setup and select manual
select t Mobile after registering it should get lte
then go to phone dialer and type *#2263#
And select automatic
Then put the sim card back in your phone with imei at zero/unknown
*#2263#
select lte band prefrance
select lte all
hit home button
go to settings
more networks
Mobile networks
mobile operators
select default setup and select manual
select t Mobile after registering it should get lte
then go to phone dialer and type *#2263#
And select automatic
The sim card has already told t Mobile it's a 4G only device. Which is why I started this thread. But I was able to fix the problem with the sim card by putting in another tmobile lte device then back to mine. Instead of replacing it. Try this and let me know how it goes .
I have the note 4 now and my wife kept the note 2 i317.
that phone I have at imei 0/ unknown and 4..4.2 Modem and
conch rebublic 4.3 and the sim would switch to 4G with the original imei. And when ever I put it in someone's phone it would only get 4g. So I registered it on another tmobile lte device and put the sim back in my phone registered it and lte worked.
I was able to fix sim with above steps.

Lte on unlocked sprint s6 edge+ on t-mobile

Does anyone know if I can get lte working or is it possible to do

Probably not

Unfortunately no, it's not possible.

Why would it not be possible? It does support some of t mobile bands.
Sent from my SM-G928P using Tapatalk

Lte band is different on tmobile gsm than on a sprint phones

I Am in same situation. It does not make sense if i go to ##data# i see bands 2,4,12 all LTE in priority list. It is there. How can we make it work?

Mine works on LTE, but signal is very unstable. Voicemail wont work unless switch back to 3G.

Just an update, I unlocked my phone. Connects to B2, B4, B12 no problem.
Sent from my SM-G928P using Tapatalk
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just proof
Sent from my SM-G928P using Tapatalk

Could you please tell us how did you manage to get B2 and B14 working? I checked mine with SignalCheck and it shows that i am on B4 LTE AWS.

fenge said:
Could you please tell us how did you manage to get B2 and B14 working? I checked mine with SignalCheck and it shows that i am on B4 LTE AWS.
Click to expand...
Click to collapse
That's t mobile fastest lte. It will default to that unless you go out of an area that doesn't have aws. Then it should pickup B2 and B12 when available.
Sent from my SM-G928P using Tapatalk

Thank you! My voicemail won't work unless I switch back to 3G, I should probably just stick with 3g.

fenge said:
Thank you! My voicemail won't work unless I switch back to 3G, I should probably just stick with 3g.
Click to expand...
Click to collapse
My voice-mail works fine.
Sent from my SM-G928P using Tapatalk

how do you unlock a phone

That's not proof that it's working. That's proof that the phone is seeing the LTE band. Mine sees it also but I can't actually connect to it. It clearly says unregistered on the screen shot on the top. When connected it says "sending & receiving" or active

littlebeeper said:
That's not proof that it's working. That's proof that the phone is seeing the LTE band. Mine sees it also but I can't actually connect to it. It clearly says unregistered on the screen shot on the top. When connected it says "sending & receiving" or active
Click to expand...
Click to collapse
Happy?
Sent from my SM-G928P using Tapatalk

That's proof. How you get that to connect. I'm on automatic and get only 3g and the APN setting gets blocked. If I go to setting through root and change to LTE/gsm auto prl. I get only 3g. The phone sees the same LTE band your on but it won't connect. Only time it did was when I was using activate phone but it would not show accurate signal meter and then reverted back to 3g when it failed to activate

Used my msl to get into data and added tmobile apn. Left it on automatic and it connects perfect. Only thing I noticed is when using the apn fast.t-mobile.com, is you have to put it in like this. fast.tmobile.com. works fine.
Sent from my SM-G928P using Tapatalk

When I go into ##data# with edit using msl I still can't add or edit APN. It's working right now. But it's on LTE/GSM auto prl in device I go using advanced signal status app, which shows up as LTE GSM UMTS In mobile networks>network mode Only thing is the signal meter is not reading accurate and I have to make a call every few hours to get LTE to connect again. Going to try automatic again. I upgraded to latest update yesterday

I'll have to check again. I'll let you know in the morning
Sent from my SM-G928P using Tapatalk

It works on tmobile
If you can get into GCF SETTING CHANGE NETWORK BANDS TO GSM/WCDMA/LTE. ONCE THAT'S DONE RESTART PHONE AND DIAL ##DATA# HIT EDIT ENTER YOUR MSL CODE.. NEXT HIT LTE THEN HIT LTE ROAMING MAKE SURE IT'S ENABLED.. PRESS BACK ON YOUR PHONE TO SAVE THE SETTINGS... NOW THE LAST THING YOU NEED TO DO IS MAKE SURE IN YOUR T-MOBILE APN SETTINGS BEARER IS SET TO LTE ONLY.. SAVE THE APN SETTINGS AND REBOOT PHONE AND BOOM YOU HAVE YOUR SPRINT UNLOCK EDGE PLUS WORKING ON T-MOBILE LTE.. RECEIVING AND SENDING MMS WON'T WORK UNTIL YOU UNDO ALL SETTINGS AND PUT BACK THE PHONE TO WORK ON 3G.

Verizon and the OnePlus 3?

Howdy!
So I've read that the OnePlus 3 is not compatible with Verizon, but if you look at the bands it's only missing Band 13. Wouldn't the others still work?
Thanks!

I will report on July 1 when my opo arrives.
Sent from my Shield Tablet using XDA-Developers mobile app

Verizon's primary band is Band 13 (700c) according to this website below.
http://www.phonearena.com/news/Chea...on-T-Mobile-and-Sprint-use-in-the-USA_id77933

Maybe the band will become editable by a rom. But who knows

700mhz B13 is not really a "primary" band it just happens to be what Verizon first launched.
I highly doubt that we will see 700 B13 on the OPO3. Vzw is rumored to be rolling out B2 1900 but I'm not sure if it's officially launched in any markets. There is also the fact that vzw uses CDMA BC0 800mhz, which if I read the specs correctly is supported by the OPO3.
All this being said I doubt the OPO3 will work fully supported by vzw.
Of course there are some brilliant people in the xda community who can probably shed some more light on the subject.

It will work with Verizon 3G I saw in a review video. Not LTE tho.
Sent from my VK815 using XDA-Developers mobile app

It has LTE bands 2 and 4, thus if VZW has LTE bands 2/4 in your area then it should work. I'm having issues getting the LG-H830 working, but it doesn't have CDMA. It connects to band4 in my area but no icon, since I believe it needs CDMA for auth.
I haven't tried this yet but you may be able to add band 13
http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059

Do you think a call to VZW customer care would allow one to know what bands are in an area? You'd obviously need to get an upper level service tech on the line...but could they tell you?

SOCOM-HERO said:
Do you think a call to VZW customer care would allow one to know what bands are in an area? You'd obviously need to get an upper level service tech on the line...but could they tell you?
Click to expand...
Click to collapse
I would say waste of time based on my experiencettalking to them. Better off using apps to figure it out. If you don't have Verizon, just visit the store nearest to you and install LTE Discovery on a display phone.
Sent from my rooted and BL unlocked LG-H830 using XDA-Developers app

Skizzy034 said:
It will work with Verizon 3G I saw in a review video. Not LTE tho.
Sent from my VK815 using XDA-Developers mobile app
Click to expand...
Click to collapse
Can you post the link to this review video please?

Skizzy034 said:
It will work with Verizon 3G I saw in a review video. Not LTE tho.
Sent from my VK815 using XDA-Developers mobile app
Click to expand...
Click to collapse
Why would it not work on LTE? It supports bands 2 and 4. If your area is VZW band 13 only then yeah it won't get 4g signal.
Sent from my rooted and BL unlocked LG-H830 using XDA-Developers app

Surprisingly Skizzy034 is correct, 3G (eHRPD) works. I had to enable data roaming first, but I can make/receive calls, sms, mms, and cellular data.
I've also been able to force a connection to LTE. However, when I do this sms, mms and calls don't work (data only).
Basically there is no transition between 3G and 4G.
I've messed around with the build.prop to see if I can get the phone to treat 4G as the preferred connection and only use 3G for sms, mms, and calls but I havent made any progress.
I'm confident that with help from the dev community we can actually get this thing working fairly well on vzw.

cdkg said:
Surprissingly Skizzy034 is correct, 3G (eHRPD) works. I have to enable data roaming first, but I can make/receive calls, SMS, mms, and accedd mobile data.
I've also been able to force a connection to LTE. However, when I do this sms, mms and calls don't work. All that works is data
Basically there is no transition between 3G and 4G.
I've messed around with the build.prop to see if I can get the phone to treat 4G as the preferred connection and only use 3G for sms, mms, and calls but I havent made any progress.
I'm confident that with help from the dev community we can actually get this thing working fairly well on vzw.
Click to expand...
Click to collapse
Did you pull the VZW apn xml file from a VZW phone and swap out yours? I can send if needed. I would like to buy OP3 and I use Verizon, so I'm definitely interested in what you're trying to accomplish.
What do you mean by forcing LTE? Setting RAT to LTE only?
Sent from my rooted and BL unlocked LG-H830 using XDA-Developers app

The APNs appear to have auto configured (attached a screenshot).
When I say "forced into LTE" I have manually changed the RAT to LTE only. This only appears to only work consistently on CM based roms. I did get OOS to lock onto LTE once but I've not been able to do it again.
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cdkg said:
The APNs appear to have auto configured (attached a screenshot).
When I say "forced into LTE" I have manually changed the RAT to LTE only. This only appears to only work consistently on CM based roms. I did get OOS to lock onto LTE once but I've not been able to do it again.
Click to expand...
Click to collapse
If you set RAT to auto do you get both CDMA and LTE? On stock vzw phones, it seems multi APNs are used (VZWIMS and vzinternet)
Were you able to unlock band 13 (http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059)? What LTE band are you connected to? LTE Discovery app from play store can provide that info if you need.
Have you tried:
telephony.lteOnCdmaDevice=1
ro.telephony.default_network=10 ro.cdma.home.operator.alpha=Verizon ro.cdma.home.operator.numeric=311480 gsm.sim.operator.alpha=Verizon gsm.sim.operator.numeric=311480 gsm.operator.alpha=Verizon gsm.operator.numeric=311480
Sent from my rooted and BL unlocked LG-H830 using XDA-Developers app

I have not tried any of those things.
I'm hesitant to bother with attempting to unlock band 13. I spent a lot of time working on that on my opo1 and didn't work.
But I'm willing to give it a shot. I'm on vacation and don't have access to a PC so gonna be a few days. But I can apply the build.prop edits in the next few hours.

I made the build.prop edits you suggested jhasty01. Unfortunately they had no effect.
I'm going to work on unlocking Band13. Because I'm a market that is almost 100% covered by Band4 it is difficult to tell if Band13 is actually working. Perhaps I could disable Band4 but I'm hesitant.
I'm really hoping some of the devs who have worked with RIL can land a hand.
The larger obstacle is getting the RAT to conditionally handoff.

Any updates? Hoping so, would like to buy!

Some possibly helpful information from https://forums.oneplus.net/threads/trying-to-get-op3-working-on-verizon.452925/
Not sure if this is the case for Verizon but it is a known issue for ATT customers have LTE connection issues.
CAUSE: The IMEI for both sim slots are listed to only be set to receive 2G (H), hspa network. So if you contacted your service provider and registered your sim card with either of OP3 IMEI's, then you will not get LTE.
WORKAROUND: get your service provider to put your IMEI back to a previous phone that had LTE service.
NOTE: I had the same issue because I had to get a new Sim card because I went from a microsim to a nanosim. You access your phone information, by dialing *#*#4636#*#*. It will show your "Network type" only as hspa instead of LTE. There is no way to force it to LTE on your end, you have to contact your service provider.
Click to expand...
Click to collapse
Make sure you enabled roaming!

*Update*
Using qpst+qdxm I attempted to set radio/modem to prefer vzw bands and possibly enable B13. I was able to make the changes but the NVRAM resets to default values after power cycling. There is an NVRAM patch for the OnePlusOne which I flashed but it did not play well with the OPO3 and resulted is reboots and black screens. I tested all this on one of the recent CM builds.
I modified the build.prop to force "LTE only" (ro.telephony.default_network=11). Since I use Google Voice/Hangouts for calls and text I can make due.
I have reached out to @Mentor.37 who has been helping patch CDMA phones with GSM caoabilities to work better on GSM networks. He understands what the goal is and said mid-late August he should be able to help. @jhasty1 I only get 3G/eHRPD when roaming is enabled. No matter what ROM the RAT will not automatically transition from 3G44G. I have tried almost every ROM and modified what I thought might help with in the build.prop.
@jhasty1, as for the thread you mentioned (https://forums.oneplus.net/threads/trying-to-get-op3-working-on-verizon.452925/) there is a lot of conflicting information. There are many who say the OPO3 will not work on VZW. Well it is working, I'm using it to write this. I also had the OPO1 working on VZW using B4 LTE data.
As it stands, unless forced into "LTE only" the default RAT is 3G/eHRPD.
If we get some dev support I believe the phone could work very well.
---------- Post added at 02:40 PM ---------- Previous post was at 02:25 PM ----------
I've been able to attach to LTE on bands 2,4 and 5. Now as far as I know vzw has not began using band 5. I think what's happening is I'm roaming on att for some reason.

US998 Hidden Menu LG V30/V30+

EDIT: If the dialer code doesn't work for you, see this post for another way to access the Hidden Menu.
________________
US998 Hidden Menu LG V30/V30+
So, I went looking for the hidden menu dialer code for the US998 LG V30.
https://www.reddit.com/r/tmobile/comments/75tbsc/lg_v30_and_others_engineering_menu/
*#546368#*998#
That's a different menu, and doesn't provide the band locking option and you can break your CA and LTE combos if click the wrong thing. Just wondering if that code works. You can get to the Engineering Mode, though.
Click to expand...
Click to collapse
Found it. Literally you copy and paste this code into your dialer. Do not hit "call". Once you paste it in, the menu instantly pops up.
Unlike for the T-mobile variant, it doesn't let you checkmark off all the bands you want -- at least with AT&T Prepaid, which I have. I think the bands it shows it dependent upon the SIM card you have in your phone.
I was able to click each LTE band my phone IS showing and with one exception (LTE band 30), a box popped up and "Success". Whatever that means.
I think if I had AT&T postpaid it might show more bands. (AT&T Prepaid doesn't allow domestic roaming, but does have roaming in some other countries.) Or if I had T-mobile it might show different bands, like even LTE band 66. Since I have AT&T Prepaid -- with no U.S. roaming -- it's not going to show me a band I'll never use? At least that's my working theory. While the dialer code is the same, possibly options are different depending carrier/SIM card[/B]
You can also go into the Service Menu and turn off MOISTURE DETECTION. Just an FYI for those who need to know that.
I did go into the some of the VoLTE/Wi-Fi calling settings. While VoLTE was already enabled, VoWifi (Wi-Fi calling was not). I enabled it. As an AT&T Prepaid customer, we don't get that yet, and I don't really need it. (I have Google Voice.) But I checkmarked it to enable all that. Didn't seem to break my phone.
I took some screenshots to get into the LTE bands menu, but I didn't take screenshots of the other stuff. Of course, be careful! You can break functionality.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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}
LTE BANDS on AT&T Prepaid

Okay anybody know how to get the LTE band selector back to automatic? Apparently clicking on one of the bands chooses only that band. I am stuck on band 12 which is prevalent in the Atlanta area, but I would like all bands.
By clicking on band 30, I had no LTE whatsoever . I had to click on band 12 to get some LTE signal.
In that menu, I do not see a method to choose a batch of bands. I only see a method to choose one band at a time. Whereas before I mess with the menu I had several bands automatically depending upon signal strength.
I rebooted my phone, hoping the band selector was only for that one session . But still I'm only seeing LTE band 12. I don't want to reset my phone. This got to be away to make it go back to automatic.
Sent from my carrier unlocked LG V30 US998

ChazzMatt said:
Okay anybody know how to get the LTE band selector back to automatic? Apparently clicking on one of the bands chooses only that band. I am stuck on band 12 which is prevalent in the Atlanta area, but I would like all bands.
By clicking on band 30, I had no LTE whatsoever . I had to click on band 12 to get some LTE signal.
In that menu, I do not see a method to choose a batch of bands. I only see a method to choose one band at a time. Whereas before I mess with the menu I had several bands automatically depending upon signal strength.
I rebooted my phone, hoping the band selector was only for that one session . But still I'm only seeing LTE band 12. I don't want to reset my phone. This got to be away to make it go back to automatic.
Sent from my carrier unlocked LG V30 US998
Click to expand...
Click to collapse
Whatever I just did, now I can get other LTE bands. I'm now on LTE band 2.
But I didn't choose LTE band 2, it just found the strongest signal. Whew.
Thought I was going to have to reset my phone.
Sent from my carrier unlocked LG V30 US998

ChazzMatt said:
Whatever I just did, now I can get other LTE bands. I'm now on LTE band 2.
But I didn't choose LTE band 2, it just found the strongest signal. Whew.
Thought I was going to have to reset my phone.
Sent from my carrier unlocked LG V30 US998
Click to expand...
Click to collapse
Funny, i did the same thing this morning when playing with the menus. I thought it was a checkbox and saw a 'SUCCESS' toast show up on clicking. Oh no , what have I done.
I rebooted the phone and everything seems to be back to normal.

A slightly different code for the AT&T version of V30
The code didn't work on my AT&T version, BUT!!!!!! ........ I noticed how the last 3 digits correspond to the unlocked version and substituted them with 931 which corresponds to H931/AT&T phone version and voila!! I get into the hidden menu.
So for AT&T version of V30 the code is *#546368#*931#
Enjoy!
The menu looks a bit different though e.g. band selection is not there

cheri0 said:
The code didn't work on my AT&T version, BUT!!!!!! ........ I noticed how the last 3 digits correspond to the unlocked version and substituted them with 931 which corresponds to H931/AT&T phone version and voila!! I get into the hidden menu.
So for AT&T version of V30 the code is *#546368#*931#
Enjoy!
The menu looks a bit different though e.g. band selection is not there
Click to expand...
Click to collapse
Do you see a service sub-menu category?
If so, check in there.
Sent from my carrier unlocked LG V30 US998

Any suggested changes to be made here?

Does the US998 support Band 71 for T-Mobile?

Guyinlaca said:
Does the US998 support Band 71 for T-Mobile?
Click to expand...
Click to collapse
Not yet. Not until root.
https://forum.xda-developers.com/showthread.php?p=74717874
Sent from my carrier unlocked LG V30 US998

I'm still concerned I may have done something to prevent my LTE bands from automatically switching properly. I've been on LTE Band 2 for two days now and only LTE band 2. Normally traveling to and from work (30 miles down I-75 and across I-285 perimeter) I'll switch bands, according to LTE Discovery app.
But today I'm heading into north Georgia where LTE band 4 is prevalent, so we'll see...

reposting here also as it's very relevant to the US998 hidden menu.
AliLaPointe said:
Hey All,
I unfortunately messed around with the LTE Band Settings on my US 998 (US Cellular) in the hidden menu and am now worried that the phone is locking to specific bands. Right now, no matter how many times I reset network settings and restart the phone, it will only lock to one band (12 or 4). The lock is dependent on which LTE Band Setting I select. Anyone know where in the hidden menu I can reset the band selection? Any help would be appreciated.
Thanks!
Click to expand...
Click to collapse
ChazzMatt said:
Please tell me exactly what you did to fix the problem? When you factory re-set, did you allow Google to restore your data and apps? I really don't want to do a factory reset if I don't have to.
I've already tried airplane mode, as well as chosen other bands (I stick on them unless I re-select LTE band 2.) As well as rebooted multiple times daily.
I've been stuck on LTE band 2 for 4 days now. I selected LTE bands in that hidden menu and it stays only on the one chosen. Before that I was stuck on LTE band 12, but 2 is better than 12 if I have to be stuck on one.
Click to expand...
Click to collapse
VeixES said:
Maybe unselect band 2 for a moment so the device would be forced to use another one?
Click to expand...
Click to collapse
ChazzMatt said:
Unfortunately that doesn't help. It's the US998 menu. You click it, it chooses that band. You click another it chooses THAT band and only that band. It stays in the last band you chose and only that band.
I can select another band besides band 2, but I would then be just choosing another band to be stuck on. I did that initially when I was stuck on band 12. Now I'm stuck on band 2, which is better than being stuck on LTE band 12 in the Atlanta metro area.
I went up to North Georgia last weekend where AT&T LTE band 4 is prevalent, and I was on WEAK LTE band 2 the most of the time, and then on HSPA. I never switched to LTE band 4.
That's why I asked the guy exactly what he did to fix it. He said factory reset, but I would like his details. I don't want to completely reset my phone for nothing. If only a true factory reset will fix it, I'll wait until next weekend when I don't need my phone during the daytime.
Also, did he allow Google to restore data and apps?
Sent from my carrier unlocked LG V30 US998
Click to expand...
Click to collapse

Has anyone found a solution to this? I have tried a factory reset and it did not solve the issue. I also tried a couple things such as changing the RAT Selection to WCDMA ONLY (since VZW) and then LTE ONLY and then to LTE/WCDMA but that results in no service at all whereas I at least have service with WCDMA ONLY or LTE ONLY.
I imagine there should be a simple way to fix this as it is literally just disabling bands in the modem...it is just a matter of figuring out how.

same issue here. anyone succeeded in restoring the default settings? weird hidden menu on this Phone and keeps me frustrated...

Kriffy said:
Has anyone found a solution to this? I have tried a factory reset and it did not solve the issue. I also tried a couple things such as changing the RAT Selection to WCDMA ONLY (since VZW) and then LTE ONLY and then to LTE/WCDMA but that results in no service at all whereas I at least have service with WCDMA ONLY or LTE ONLY.
I imagine there should be a simple way to fix this as it is literally just disabling bands in the modem...it is just a matter of figuring out how.
Click to expand...
Click to collapse
couldn't agree more. But for now it Seems nobody has A solution...

AliLaPointe said:
Hey Chazz, sorry for the delay. I have notifications turned off. But yes, I had to do a factory reset from scratch. I didn't restore any settings and started with a clean slate. I then used LTE discovery to see myself connecting to different bands. Toggling airplane mode showed band 4 and 12.
Click to expand...
Click to collapse
Thanks for the answer. The V30 with the problem is now my backup phone, as I'm using a V30+ as daily phone. I didn't dare touch this menu on that one or my wife's V30.
I have reset that first phone, but it no longer has a SIM card in it. Maybe next weekend I take it for a drive...
Moriatier said:
messed it up, too. It is definitely stupid not to give users the right to select all the bands or to use auto mode. Seems that we have to wait for the bootloader unlock to have that right back?
Click to expand...
Click to collapse
Yeah, the US998 needs the T-Mobile hidden menu, where you can select all the bands you wish, not just one at a time. Very strange design choice from LG.
There is an option in the hidden menu to reset networks. Did you see that? Maybe that's what needs to be chosen?
Sent from my official carrier unlocked LG V30+ US998

ChazzMatt said:
If factory reset doesn't work, then flashing this probably won't. I don't know for sure. However, in that same hidden menu mode, I saw network reset choices. Not in the LTE bands section, but a neighboring section.
Click to expand...
Click to collapse
bbot3k said:
Could you direct me to the setting path? I'm not seeing anything that says network reset choices.
Click to expand...
Click to collapse
Moriatier said:
waiting for your guide, too.
Click to expand...
Click to collapse
Hmmm... very strange. I know I saw something before, but I can't find exactly what I remember.
Anyway, I see the R&D Factory Reset in the Hidden Menu. Is that some kind of super duper re-set? I don't know. It's in the Hidden Menu for a reason.
I also see Network Settings Reset in the the regular Settings menu. I don't have a SIM card in this phone, but if I did would it re-set ALL my network settings?

ChazzMatt said:
Hmmm... very strange. I know I saw something before, but I can't find exactly what I remember.
Anyway, I see the R&D Factory Reset in the Hidden Menu. Is that some kind of super duper re-set? I don't know. It's in the Hidden Menu for a reason.
I also see Network Settings Reset in the the regular Settings menu. I don't have a SIM card in this phone, but if I did would it re-set ALL my network settings?
Click to expand...
Click to collapse
I think the Network Settings Reset in the regular settings menu is already covered by the factory data reset. Thanks for getting back to us though. I'm not entirely sure if Factory Data Reset worked for me or not. T-Mobile around where I live is mostly Band 4. I've looked through cellmapper for towers that had band 2 and were spotted recently, and as I drove by them I didn't notice my phone connecting to anything other than band 4.

ChazzMatt said:
Hmmm... very strange. I know I saw something before, but I can't find exactly what I remember.
Anyway, I see the R&D Factory Reset in the Hidden Menu. Is that some kind of super duper re-set? I don't know. It's in the Hidden Menu for a reason.
I also see Network Settings Reset in the the regular Settings menu. I don't have a SIM card in this phone, but if I did would it re-set ALL my network settings?
Click to expand...
Click to collapse
had tried R&D Factory Reset, failed to fix the messing up in the hudden menu.

Ive got a H931 that was a test phone that has the USERDEBUG imprint on the LG home screen. Was able to access the hidden menu. Anyone know what setting to alter to remove the USERDEBUG imprint from home screen?

Anybody know if there's a way to turn on advanced hd voice calling in this menu? Under phone settings the option is greyed out for me and appears to be off