yashsingh1/xdaforums huggingface dataset:
[LG V30 Guides, News, & Discussion] ChazzMatt:
Yes, for Red Pocket AT&T MVNO, use US998 firmware. The TWRP flashable zips and full image KDZ are side by side in these threads:

*

[US998][STOCK][PIE]LG V30 US998 US99830b_00_0902.KDZ

If you use 30b, make sure you read all of

post #6 workarounds

in that thread if you get stuck on LG logo.

*

[US998][STOCK][OREO]LG V30 US998 US99820h_00_0318.KDZ

If you go last Oreo 20h TWRP-flashable zip, it's best to flash 20e, 20f, 20g, 20h all back-to-back, then Magisk. Those Oreo TWRP flashable zips were incremental to some degree and only flashing 20h will not give you everything you need. We found a good combination was 20e, 20f, 20g, 20h.

Alternatively, if you want to REALLY make sure, then as @TheDannemand suggests, you can flash

US998 Nougat KDZ

via LGUP Partition DL, Master Reset, then immediately flash either US998 20h or 30b KDZ (which are full images). At that point you will still have unlocked bootloader but no TWRP. Then go through

this standalone TWRP installation post

to re-install TWRP/root. It's basically WTF Section 6 written as a standalone post. Ignore that it says it's for Pie. ;) It works for any V30 bootloader unlocked firmware with fastboot flash commands. I just wrote it mostly for people who flashed Pie KDZ and lost TWRP, before we got the Pie TWRP flashable zips. It works if your bootloader is already unlocked, you have fastboot flash commands, and just need to install/re-install TWRP and root.

The advantage the TWRP-flashable zips have is they are easier and Devs JohnFawkes and Seadrsn took the time to enable DTS and the lockscreen animations on their releases.
[LG V30 Guides, News, & Discussion] :
WOW, Thanks!! So do you think I could 1st just try wiping and flashing US99830b first? TO allow te people at Red Pocket to provision phone and then if its wonky do a major redo?
[LG V30 Guides, News, & Discussion] ChazzMatt:
Yes, you can try 30b Pie TWRP flashable zip. Some people have no issues whatsoever, while others get stuck on LG logo and either have to try all the

post #6 workarounds

or they drop down to Oreo.
[LG V30 Guides, News, & Discussion] :
I did that but dont get the voWIFI, voLTE options....I did the hiddenmenu stuff recomended above but am I remembering you dont have voWIFI on your ATT phones?
[LG V30 Guides, News, & Discussion] ChazzMatt:
I don't on actual AT&T. But @TheDannemand does on Red Pocket "AT&T."
[LG V30 Guides, News, & Discussion] :
Maybe I am confused as his post on this thread says " Unfortunately US998 does NOT support AT&T WiFi Calling " .... @TheDannemand do you have voWIFI working on Red Pocket?
[LG V30 Guides, News, & Discussion] ChazzMatt:
But he says he has VoLTE on Red Pocket "AT&T".

If you switched to a T-Mobile MVNO or T-Mobile itself, you can get both VoLTE and VoWifi on US998 firmware.
[LG V30 Guides, News, & Discussion] TheDannemand:
Exactly as @ChazzMatt wrote: I have VoLTE working on Red Pocket GSMA (AT&T) but NOT VoWiFi (WiFi Calling) despite much trying.

Red Pocket does provide VoWiFi on GSMA as long as the phone supports it, but US998 ROM blocks the provisioning of VoWiFi on AT&T. If only we could flip that provisioning I am sure it would work just like VoLTE.

I tested @david.542569's TWRP flashable AT&T H931 ROM and both VoLTE and VoWiFi works on that (with GSMA) plus it adds menus. But unfortunately we don't have a recent version of that ROM. The last version shared by the dev is early Oreo. I am guessing one reason may be that LGUP doesn't support Dump mode once you're on Pie, making it a lot harder to capture all the partitions.
[LG V30 Guides, News, & Discussion] :
So it seems my best choice since I NEED voWIFI (I spend half the year in an area with no cell service and only WIFI at the house) is to use US998 Oreo and the Red Pocket GSMA ATT SIM? or could I still use LS99830a?

PIE is not a need for me...service and voWIFI is key. I went to Red Pocket to get away from the awful sprint service now since the merger...
[LG V30 Guides, News, & Discussion] TheDannemand:
If you need VoWiFi, I would say Red Pocket GSMT (TMO) is a good choice, since it is supported by US998, menus and all. See the following:

https://help.redpocket.com/hc/en-us...-and-can-I-use-it-with-my-Red-Pocket-service-

Not all Red Pocket plans can be switched to GSMT, in which case you may have to choose a different plan includes GSMT.

Edit: Or you could use the TWRP flashable H931 ROM (from AT&T) which I linked in my previous post. You'll be stuck on early Oreo, but the ROM is otherwise nice. And of course fully supports VoLTE and VoWiFi on AT&T, includig GSMA.
[LG V30 Guides, News, & Discussion] :
RP says the offer voWIFI on their GSMA planse.....which is the SIM they are sending....so I just dont know what ROM I will have to try as it seems US998 wont be an option as you say?
[LG V30 Guides, News, & Discussion] TheDannemand:
Then I suggest you give that H931 ROM a try.
[LG V30 Guides, News, & Discussion] ChazzMatt:
You can try another T-Mobile MVNO, like Mint if you can't get T-Mobile SIM from Red Pocket?

With either US998 20h (last Oreo) or US998 30b (most recent Pie) will give you both VoLTE and VoWifi on T-Mobile network.

The only issue is, can you use T-mobile network? Some who live in rural areas well off the interstates cannot -- like my mother.
[LG V30 Guides, News, & Discussion] :
SO i activated a GSMA SIM with Red Pocket. I used US998 for a while and then tried this H931 Rom. It seemed to work fine but it said my SD card was corrupted and needed to be formatted. I didnt of course because it is packed with all my stuff....oly seems to be an issue on this rom? (tried it twice) all fine on US998

Thoughts?

also, is this the only ROM you can think of with the GSMA that will get voWIFI, voLTE, VVM etc?

What about the CDMAS....I think we said nothing will work?

@ChazzMatt feel free to interject ;)
[LG V30 Guides, News, & Discussion] TheDannemand:
Let's sum it up:

1) AT&T / Red Pocket GSMA: US998 ROM supports VoLTE, but NOT VoWiFi, nor menus. H931 ROM will give you everything, but we only have an older (mid Oreo) version and will probably never get anything newer. You can try H933 ROM (use Frankenstein via Nougat).

2) Sprint / Red Pocket CDMAS: LS998 phones (IMEI) with LS998 ROM (stock KDZ or JohnFawkes) should support everything (Red Pocket specifically mentions it here). US998 ROM lacks some Sprint LTE bands, plus TMO is about to retire Sprints CMDA business.

3) T-Mobile / Red Pocket GSMT: US998 ROM supports VoLTE and VoWiFi and menus; possibly VVM too. If you have good TMO reception in your area, it is the most functional choice on US998. Reception should only improve as TMO starts using 800 and 850 MHZ bands from Sprint. The US998 ROM supports most TMO LTE bands, although not 600 MHz B71.

4) Verizon / Red Pocket CDMA: Can only be activated Verizon phones (IMEI) but should work on US998 ROM after moving activated SIM card over, according to several XDA reports. Of course VS996 ROM should work even better. Red Pocket offers VoLTE on CDMA, but NOT VoWiFi. Other MVNOs may be better choice until Red Pocket starts offering VoWiFi.

The following two Red Pocket support pages about VoLTE and VoWiFi have been kept updated throughout this year:

What is VoLTE and can I use it with my Red Pocket service?

What is WiFi calling and can I use it with my Red Pocket service?

Generally the most complete support for a carrier's features are always with their branded phones and ROMs. V30 holds up pretty well for a 3.5 year old phone, and its flexibility is incredibly thanks to Frankenstein and WTF. But some compromises are inevitable. I think a compelling case can be made for the combo of TMO/GSMT and US998 ROM (on ANY North American IMEI -- except TMO's H932).

Edit: May I suggest you consider getting a Google Voice number? This will give you WiFi Calling and visual voice mail regardless of carrier support, plus the ability to make/receive calls and text messages on multiple devices (phones/PCs/tablets). You can keep your current carrier number and use the Google Voice number as your primary (I do this). Or you can port your current carrier number to Google Voice (keep it as your primary) and get a new carrier number which nobody will ever see (my wife did that). Setting it up and using it is outside the topic of this thread, but it is relevant for those who depend on VoWiFi. Nothing to do with VoLTE though, which is for when you are outside WiFi range.
[LG V30 Guides, News, & Discussion] :
Thanks for the thoroughness!

What do you think is the issue with the H931 Rom that I flashed and had the corrupted SD card message?

Which H933 ROm?
[LG V30 Guides, News, & Discussion] schwinn8:
For the record, I am using TotalWireless (Verizon CDMA MVNO) with great results. It works on VoLTE and VoWIFI as well. Granted, I'm also on VS996 right now... but bottom line, it works well for me (and a few others that have reported this too).
[LG V30 Guides, News, & Discussion] TheDannemand:
Sorry, I forgot to comment on that SD card issue. I honestly couldn't say for sure. What I can think of:

1) A problem with the H931 ROM or the way it was flashed: If you checked its MD5, we assume no corruption. If you were on Pie before flashing it, that could cause some problems. If so, flashing US998 Nougat with LGUP Partition DL, then back up to Oreo might clean up the phone; then flash H931 ROM after that.

2) I suppose it is possible that the H931 doesn't support the format of the SD card whereas your US998 ROM does. If the H931 ROM otherwise appears to work, I would just back up the contents of the card, let the H931 ROM format it, then copy the contents back.

AT&T always made VoLTE and VoWiFi hard to get: It used to be only for their postpaid subscribers with AT&T-branded phones. That's why US998 doesn't have AT&T VoWiFi. (Or rather it is configured to ignore the provisioning of it; I expect if we could flip that bit, it would work just like VoLTE.) It was unique when Red Pocket began offering both about a year ago, but you still need an H931 ROM to fully support it.

Again, I would consider Red Pocket GSMT in your case, since that is better supported by US998. But only if you have good TMO coverage.

H933 is the Canadian open market ROM. Check ChazzMatt's threads in the ROM section, Pie and Oreo respectively. I don't know if it works with AT&T VoLTE and VoWiFi, but it has more LTE bands than any other model.

Otherwise VS996 is something to consider, as mentioned by @schwinn8 -- as long as you have a Verizon phone (IMEI) with which to activate it. Several members have good reports about TotalWireless. We'll see in another 1-2 months what Red Pocket does with its current CDMA (Verizon) plans after CDMA dies.
[LG V30 Guides, News, & Discussion] :
Very good.... @ChazzMatt your thoughts on H933? Vowifi?
[LG V30 Guides, News, & Discussion] schwinn8:
Something I want to clarify. My wife's and my phones are both US998 IMEI devices. They have been unlocked and then flashed over to VS996. I did have a previously activated SIM when I switched to these phones under Verizon originally, and they worked fine then as well. I later switched to TW and retained all the functionality (VoLTE and VoWIFI).

I believe that you should be able to get VoLTE and VoWIFI on TW even without a Verizon phone and without a previously activated SIM, as TW doesn't seem to care in that sense. After all, I did that, basically - I used a new TW SIM and activated this US998 IMEI phone, with VS996 flashed, and am running TW with VOLTE/WIFI working.

Note, early on, I did have to use Shortcut Master to get into the settings and force it on, which I documented in one post here somewhere... but from what I've heard others who have done this have not had to do this...

I will say that Verizon won't activate their SIM on a non Verizon phone (IMEI)... that is true... because I did try that for my in-laws. Verizon is stubborn and stupid about this, even though there is no technical reason they can't. The in-laws ended up buying a VZ phone only because they wanted in-store-support (they don't live near me) and VZ are assholes about this "different" IMEI and refuse to do anything if that doesn't match.
[LG V30 Guides, News, & Discussion] ChazzMatt:
Very succinct, well organized summary. On point #4 (Verizon), I would add the same thing about CDMA you mentioned on point #2 (T-mobile/Sprint). ;) Verizon will be LTE/5G only, sooner than T-Mobile/Sprint (which will be retiring both their HSPA and Sprint legacy CDMA).

Also, I just found out some more info about T-Mobile retiring Sprint's CDMA bands... Although all phones on T-Mobile network must be "VoLTE capable" as of January 2021, T-Mobile has clarified

they won't completely shut down Sprint's old CDMA until January 2022.

As former Sprint customers have noted (who are still using their old Sprint phones), T-Mobile is already killing a lot of CDMA towers for 5G rollout -- leaving only skeleton CDMA infrastructure. But it won't completely shut down Sprint legacy CDMA totally for another year. As for their own HSPA, it will be shut down but I can't find a drop dead date right now.
[LG V30 Guides, News, & Discussion] ChazzMatt:
I don't think it would help in your case for AT&T VoLTE or VoWiFi. If you were moving to another country, I would agree that H933 firmware would give you more LTE bands.
[LG V30 Guides, News, & Discussion] ChazzMatt:
re: H931 TWRP-flashable zip

The few TWRP-flashable zips NOT made by the Dev Team JohnFawkes and Seadrsn use different methodology. If it were possible (it's NOT!) to compare the T-Mobile H932 TWRP-flashable zips (different dev also) to the zips made by others made by JohnFawkes and Seadrsn, you would probably run into the same issue. Even though they did make the Canada H933 TWRP flashable zip, it has completely different partition structure so it's also not totally cross compatible with their VS996, US998, LS998 TWRP flashable zips.

The AT&T H931 TWRP flashable zip was made by another dev and probably needs a cleanly formatted microSD card. As previously suggested, you can copy the contents over to PC, format card, copy back.
[LG V30 Guides, News, & Discussion] :
Did either of you ever test the IMS setting mod on the AiX US998 ROm? I got the voLTE to work/notify in status on Fawkes US99830b, but have not been successful on Aix even though it also has the menu settings intact @ChazzMatt
[LG V30 Guides, News, & Discussion] TheDannemand:
I have not tried Aix.

As previously mentioned (maybe it was another thread, every thread seems to be about VoLTE these days) it is not enough for a ROM to have the IMS code, it also must have built-in carrier configs for the carrier you are using. Aix is based on H930 (as I understand) and I doubt it has carrier configs for North American carriers.

You should ask Aeon Li about that. I would tag him if I could, but I have no way to enter (or remember) his Korean username.

If he sees this and wants to add the NA carrier configs, I can upload them from my US998. We don't have an OP partition on this phone.
[LG V30 Guides, News, & Discussion] :
He posted in this thread Post #29 @에어 론 리
[LG V30 Guides, News, & Discussion] tech_infinity:
Verizon is pausing its 3G shutdown indefinitely: https://www.theverge.com/2021/1/5/22215453/verizon-3g-shutdown-paused-delay-network-old-phones
[LG V30 Guides, News, & Discussion] ChazzMatt:
Ha! People don't want to give up their old phones. This is the 2nd time they delayed shutting it down. Well, good. This means Verizon users can still use LOS custom ROMs a while longer...
[LG V30 Guides, News, & Discussion] ldeveraux:
I'm willing to bet they understand they'd come off as major assholes if they pursued this in a COVID world..
[LG V30 Guides, News, & Discussion] TheDannemand:
It was probably mostly a marketing tactic from the beginning (before COVID): "Let's scare as many as possible to buy new phones from us. When we can see that enough have done so, THEN we'll make the switch to the network. If we switch too early, we'll lose subs."
[LG V30 Guides, News, & Discussion] ldeveraux:
I don't doubt it was sincere. Why would they want to pay technicians and big brains to support the network that's been around for a decade+ and nobody uses anymore?
[LG V30 Guides, News, & Discussion] TheDannemand:
Of course I am not doubting that they meant to switch. But I do doubt that they ever thought it realistic to force all their subs to buy new phones at short notice. However it doesn't hurt telling everyone they MUST buy new phones or be disconnected -- even if they didn't realistically believe that everyone would.
[LG V30 Guides, News, & Discussion] :
So, when I do insert a RP GSMT SIm and reboot, are you saying that the menus for voLTE/voWIFI etc should appear? Right now they are not available using US99830b
[LG V30 Guides, News, & Discussion] TheDannemand:
That is what has been reported by other TMO users with US998. I do not have TMO myself anymore, so I haven't been able to confirm it since getting a US998 about a year ago.

It definitely should be the same as a TMO SIM card. The phone has no knowledge of RP, it only knows about TMO.

Have you tried a network settings reset? And do you have LTE service? Did you request RP to enable VoLTE and VoWiFi? You probably need to set up APN first, as you did with ATT/GSMA.
[LG V30 Guides, News, & Discussion] :
I will be doing it later this week and will confirm
[LG V30 Guides, News, & Discussion] ChazzMatt:
Another article speculated it's also because of the "Internet of Things" (IoT). A LOT of home/business alarm systems, automatic water meter readings (our county for sure), crop sensors, etc. use cellular signals to send data. They've been on the market for years, and you have to replace all those with "LTE" versions.

Last year, we got my 90 year old mother one of those "home alert" necklaces in case she needs to call for 911 if she's fallen and can't move. It uses 3G cell phone signal. I even called the company response center from her necklace to test. It dialed a phone number. I could hear it through the speaker. They answered. I asked if it was AT&T or Verizon, and if it was 3G or they had upgraded to LTE. They wouldn't answer specifically, but said they were always updating their technology and she would get replacement hardware as needed. :rolleyes: Doing online research in their forums, this particular brand seems to use AT&T 3G -- so we have until 2022. But plenty of similar companies probably use Verizon.
[LG V30 Guides, News, & Discussion] NothinYet22:
My co-worker has sprint, and he cracked his phone yesterday. I was trying to see if my vs996 would work on sprint network. Then I got into the Frankenstein/flashing roms. What would be a good ROM to flash using lgup for transferring the vs996 to sprint. Am I wasting my time?
[LG V30 Guides, News, & Discussion] ChazzMatt:
Well, Sprint is now T-mobile, so I assume he has T-mobile SIM? or T-mobile compatible SIM? Flash

US998 20h KDZ

. It will give him CDMA (for Sprint), HSPA (for T-mobile) and all the T-mobile LTE bands, except for LTE band 71. For T-mobile you especially need LTE Band 12, which Verizon VS996 firmware does not have. What US998 firmware doesn't have is a few of the old Sprint LTE bands -- but he may not need that.

US998 20h is the last Oreo firmware and is more stable than the US998 Pie, which is hard to flash for many people. I don't want you to go down that rabbit hole when it's not necessary. Use

US998 20h

.

US998

CDMA: 800 MHz CDMA

2G GSM: 850/900/1800/1900 MHz

3G UMTS (HSPA):850/900/1900/2100 MHz

4G LTE Bands: 1/2/3/4/5/7/12(17)/13/20/25/66
[LG V30 Guides, News, & Discussion] NothinYet22:
Thank you very much, I figured that is what I had to do. I was just making sure. Ill take care of that. Much appreciated!
[LG V30 Guides, News, & Discussion] ChazzMatt:
On the other hand, maybe do NOT get a new SIM card. I've removed that extra suggestion from my reply above. Someone has reported issue with new SIM cards their T-mobile MVNO (Ting) is distributing. No one else has reported this, yet, so I don't know if it's a Ting issue or T-Mobile issue.

https://xdaforums.com/t/warning-v30-us998-possibly-others-no-longer-works-well-on-tmo.4219665/
[LG V30 Guides, News, & Discussion] :
@TheDannemand @ChazzMatt I am switching today from Red Pocket GSMA to GSMT....Will I have to reflash US998 and start from scratch to get the voLTE/voWIFI menus show up?

Or will a simple reboot get them available....
[LG V30 Guides, News, & Discussion] TheDannemand:
Again, I haven't tried it myself, but I cannot see any reason you would need to reflash. Replacing the SIM and updating APN should be all. Or maybe perform a Network Settings Reset from the settings menu.

But before you switch, notice the warning thread linked by ChazzMatt. I am linking it again below:

https://xdaforums.com/t/warning-v30-us998-possibly-others-no-longer-works-well-on-tmo.4219665/

We don't know if this applies to all new SIM cards from TMO and TMO MVNOs. But if you received an X3 SIM do NOT go through with the switch, as US998 does not have the IMS carrier configuration for it.

If (for whatever reason) you don't like the service you are getting on GSMT, you can switch back to GSMA. But you must have an unused GSMA SIM card. Red Pocket cannot re-activate previously used SIM cards.
[LG V30 Guides, News, & Discussion] :
I just confirmed from Red Pocket that they don't use the new X3... They still use the V1 triple cut cards
[LG V30 Guides, News, & Discussion] TheDannemand:
I assume it would say X3 or hybrid on the SIM. But I don't know anything beyond what's posted in that thread I linked.

Anything you find out will be valuable information to others.
[LG V30 Guides, News, & Discussion] :
See my edit above.. Will report when port is finished
[LG V30 Guides, News, & Discussion] TheDannemand:
Good!

As mentioned previously, make sure you ask Red Pocket (chat or phone) to activate VoLTE and WiFi Calling. While VoLTE should be on by default, I don't think WiFi Calling is on by default. See the Red Pocket support page linked below (same as I linked previously):

https://help.redpocket.com/hc/en-us/articles/360022031312
[LG V30 Guides, News, & Discussion] :
I will WARN everyone on here that Red Pocket has the MOST inept series of customer service reps.....the amount of time I have had to spend with them on changing SIM cards is simply amazing....Dont do it if you want sanity
[LG V30 Guides, News, & Discussion] TheDannemand:
I am sorry to hear that :confused:

I've switched several times myself, as well as a few times for my wife, and they all went very smoothly. I was prepared that it might take a while, but they took just a few minutes each time. Admittedly last time was over a year ago. I don't know if COVID has affected their level of service.

One thing to keep in mind is that, because Red Pocket provides service on all four carrier networks, switching to a different network isn't just replacing a SIM, it's actually porting the number to another network. Porting to or from CDMA networks in particularly is more involved because these networks consider both the phone and the SIM, and their provisioning is more complex. Between GSM networks it's just a SIM. I remember in the past when I was on Sprint MVNOs, porting in and out could take a few days.

But you porting from GSMA (AT&T) to GSMT (T-Mobile) really shouldn't be hard.
[LG V30 Guides, News, & Discussion] :
It was hard when they kept losing my plan that I paid for and then claiming I didnt pay for it....a mess....

Anyway I am finally on GSMT and US99830b

While voWIFI works and it toggles on, with no ability to change e911 like I aused to it doesnt have the icon on status bar...

voLTE: while it says in call log etc that I have "HD" next the phone icon I dont see anywhere in settings yet where I can toggle voLTE on or off