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Folks,
I know there's a mixed bag of posts among a bunch of threads that cover how to get Verizon VoWiFi/VoLTE and HD calling working with a US998 variant device and I've had success with those elements but in the process, found that Hotspot gets broken.
So, here's where I'm currently at; both VoWiFi and Hotspot are critical needs for me.
I have a Frankensteined LS998 that, on a purebred US998 ROM, Hotspot works flawlessly but VoWiFi does not and I've not had any success in getting it too either.
I ended up switching back to a purebred VS996 ROM and now have VoWiFi working but Hotspot functionality fails at the "You need to subscribe" lock out message.
I have tried to isolate what specifically is different between the two ROM's that would trigger Hotspot to fail like this in the VS996 ROM but have not had any luck.
I've played with a ton of settings via Shortcut Master, compared all the files in /system/etc/dsts/joan_vzw_170626 and tried "DF Tethering Fix" and a bunch of other random stuff based on bits an pieces I've picked up all over the web but am still coming up short.
Ideally I'd like to get VoWiFi working on a US998 ROM and, just for kicks, tried these steps https://forum.xda-developers.com/showpost.php?p=76613814&postcount=391 but it appears there is still some key VZW software missing.
It feels like getting the Hotspot working on the VS996 ROM is perhaps just something like an APN setting away (yes, I've tried adding DUN to the APN's list with no luck) so I'd be happy with either solution.
One thing I haven't tried is just flashing just the VZW modem to US998 to see if that may just bring the VoWiFi pieces across without compromising Hotspot but before I do that, I wanted to pose the question to the knowledgeable folks in these forums in case someone already has an answer or suggestion for me.
Is there anyone out there that's had some luck in this area?
Cheers,
Windza
Like you, I tried the mixed bag of techniques posted across forums to get VoWIFI going on my US998. I have also crawled hidden apps using Shortcut Master. Although there were glimmers of hope, none of the methods gave positive results.
I do have a pair of identical V30's and have thought about doing a side-by-side comparison to see if I can find the difference. One might be the Settings app itself. The bottomline is that I just don't have the time anylong to go down these rabbit holes and my will to battle with LG is attenuating rapidly. I do not need VoWiFi but HotSpot is a must so I am mostly content using the stock US998 Oreo rom.
BTW, if you want unthrottled hotspot bandwidth on Verizon, go into the APN settings on the phone and switch both APN Protocal and APN Roaming Protocol to ipv4. Then switch the ttl from 64 to 65 on any computer or device that will connect to the hotspot.
Windza said:
Folks,
I know there's a mixed bag of posts among a bunch of threads that cover how to get Verizon VoWiFi/VoLTE and HD calling working with a US998 variant device and I've had success with those elements but in the process, found that Hotspot gets broken.
So, here's where I'm currently at; both VoWiFi and Hotspot are critical needs for me.
I have a Frankensteined LS998 that, on a purebred US998 ROM, Hotspot works flawlessly but VoWiFi does not and I've not had any success in getting it too either.
I ended up switching back to a purebred VS996 ROM and now have VoWiFi working but Hotspot functionality fails at the "You need to subscribe" lock out message.
I have tried to isolate what specifically is different between the two ROM's that would trigger Hotspot to fail like this in the VS996 ROM but have not had any luck.
I've played with a ton of settings via Shortcut Master, compared all the files in /system/etc/dsts/joan_vzw_170626 and tried "DF Tethering Fix" and a bunch of other random stuff based on bits an pieces I've picked up all over the web but am still coming up short.
Ideally I'd like to get VoWiFi working on a US998 ROM and, just for kicks, tried these steps https://forum.xda-developers.com/showpost.php?p=76613814&postcount=391 but it appears there is still some key VZW software missing.
It feels like getting the Hotspot working on the VS996 ROM is perhaps just something like an APN setting away (yes, I've tried adding DUN to the APN's list with no luck) so I'd be happy with either solution.
One thing I haven't tried is just flashing just the VZW modem to US998 to see if that may just bring the VoWiFi pieces across without compromising Hotspot but before I do that, I wanted to pose the question to the knowledgeable folks in these forums in case someone already has an answer or suggestion for me.
Is there anyone out there that's had some luck in this area?
Cheers,
Windza
Click to expand...
Click to collapse
Thanks for the response... glad to know I'm not alone on this.
In fact, I lol'd at you having identical V30's and considering looking at them side by side.
I happen to have 3 identical LS998 variants (1 with shattered screen, 1 with US998 ROM and 1 with VS996 ROM) and was sitting at the dining table yesterday doing exactly that with the 2 good phones... trolling through Shortcut Master/IMS/APN/PDN etc.
As you said, glimmers of hope but no positive results.
I found myself frustrated at my own lack of knowledge and experience with cell networks and then even really finding anything solid on the internet.
It seems like there's almost a black hole or void out there on the nitty gritty of cell network setups (perhaps it's unique per provider and considered proprietary/IP?).
It feels like the answers exist in understanding what the settings mean and using the right combinations but I'm with you in that I'm already time short and my resolve is nearly run out...
I'm going to try flashing the VS996 modem to the US998 ROM today... will report back when I know the result.
Can someone at least tell me what APN types like ia, ims, dun etc. mean specifically or point me in the direction of a resource that might?
Thanks for the response... glad to know I'm not alone on this.
In fact, I lol'd at you having identical V30's and considering looking at them side by side.
I happen to have 3 identical LS998 variants (1 with shattered screen, 1 with US998 ROM and 1 with VS996 ROM) and was sitting at the dining table yesterday doing exactly that with the 2 good phones... trolling through Shortcut Master/IMS/APN/PDN etc.
As you said, glimmers of hope but no positive results.
I found myself frustrated at my own lack of knowledge and experience with cell networks and then even really finding anything solid on the internet.
It seems like there's almost a black hole or void out there on the nitty gritty of cell network setups (perhaps it's unique per provider and considered proprietary/IP?).
It feels like the answers exist in understanding what the settings mean and using the right combinations but I'm with you in that I'm already time short and my resolve is nearly run out...
I'm going to try flashing the VS996 modem to the US998 ROM today... will report back when I know the result.
Can someone at least tell me what APN types like ia, ims, dun etc. mean specifically or point me in the direction of a resource that might?
Windza said:
It feels like the answers exist in understanding what the settings mean and using the right combinations but I'm with you in that I'm already time short and my resolve is nearly run out...
I'm going to try flashing the VS996 modem to the US998 ROM today... will report back when I know the result.
Click to expand...
Click to collapse
Aaaaaand... the result is unsurprising. I know some folks were reporting anecdotal improvements after flashing the VS996 modem into US998 but I'm not seeing notable difference from where I was already at.
I was on US998 20e and flashed modem from VS996 20f but no luck... last resort is to try US998 20h and VS996 20k but I'm not holding my breath.
No matter what I override in the background, the consistent element on the US998 is the two switches in the attached s/shot are grayed out and unable to be toggled on (even though their equivalents in the background are on).
As soon as I flash a VS996 ROM, these switches can be toggled to get things working.
I will be of no help... But I'm definitely interested in this!
I've got US998 running vs996 stock pie with full functionality of Hotspot and vowifi. One thing I noticed when debloating my install was that removal of the Verizon phone app would cause the phone to not boot, so my guess is their app is one of the pieces of the vowifi puzzle.
Has anyone tried running Verizon phone app on a US998 Rom?
I am in the exact same boat.
Currently running US998 on Verizon VS996 only for hotspot. I also tried to get VoLTE running via https://forum.xda-developers.com/lg-v30/how-to/wtf-lg-v30-t3790500/post76613814#post76613814 but no luck. Was able to get the Verizon app to run but it didn't help with VoLTE. Possibly because I'm on a corporate plan so I don't have many options available in the app. Also missing RCS messaging features which I had on VS996 ROM, but maybe I need to try the "beta versions of Messenger" trick.
I also tried copying the HotspotProvision.apk and odex from US998 to VS996 rom but no luck there either.
Yet-another-'I want this'-reply. I use my phone for, in order, Tethering, maps, and phonecalls, and it's frustrating that using Verizon as a carrier means we have all sorts of compromises when it comes to functionality because they are supporting ancient network tech.
I'm just worried that in a world of folding screens and bull**** edge displays, actual good devices like the V30 are going to fall apart in the dev community. If we don't have a fix soon, I'm expecting never to get one.
Windza said:
So, here's where I'm currently at; both VoWiFi and Hotspot are critical needs for me.
I have a Frankensteined LS998 that, on a purebred US998 ROM,
* (Unauthorized Verizon) Hotspot works flawlessly
* but (Verizon) VoWiFi does not
I ended up switching back to a purebred VS996 ROM and now have
* (Verizon) VoWiFi working but
* Hotspot functionality fails at the "You need to subscribe" lock out message. (Because you're not paying for that Verizon hotspot service)
I have tried to isolate what specifically is different between the two ROM's that would trigger Hotspot to fail like this in the VS996 ROM but have not had any luck.
Click to expand...
Click to collapse
See my parenthetical comments.
That answers your question. Your hotspot would work on Verizon firmware IF you paid for it, like they want. There's no mystery.
Whereas on US998, Verizon has no control over how you use your data. You get "free" tethering feature on US998 firmware.
But on US998 Verizon still has control over whether to grant Wi-Fi calling to devices on their network, and they decline to do that. Control freak Verizon makes you be on Verizon firmware for Wi-Fi calling to "encourage" you to buy their hardware (even though you didn't).
T-Mobile doesn't care and grants Wi-Fi calling on US998. So, it's not "Wi-Fi calling" issue -- it's a Verizon issue.
The difference between the two "ROMs" is one is based on firmware certified by Verizon and the other is not.
---------- Post added at 11:57 PM ---------- Previous post was at 11:50 PM ----------
ellomdian said:
Yet-another-'I want this'-reply. I use my phone for, in order, Tethering, maps, and phonecalls, and it's frustrating that using Verizon as a carrier means we have all sorts of compromises when it comes to functionality because they are supporting ancient network tech.
I'm just worried that in a world of folding screens and bull**** edge displays, actual good devices like the V30 are going to fall apart in the dev community. If we don't have a fix soon, I'm expecting never to get one.
Click to expand...
Click to collapse
Get a V30. Heck, get a V30+! You can have tethering, maps, phone calls on US998. What you cannot have on US998 firmware with Verizon SIM card is Verizon Wi-Fi calling. T-mobile allows it, but Verizon doesn't. But you still get phone calls.
My sister and brother-in-law are both on US998 firmware (former LS998 V30+) on Verizon and they both get VoLTE.
$110 for mint US998 V30+.
https://forum.xda-developers.com/lg-v30/development/us998-lg-v30-us998-us99830a000704-kdz-t3952256
ChazzMatt said:
That answers your question. Your hotspot would work on Verizon firmware IF you paid for it, like they want. There's no mystery.
Click to expand...
Click to collapse
ChazzMatt, here's the kicker - that seemed like an obvious and logical argument to me initially as well BUT I had issues initially with not having any of the good stuff on VS996 and ended up on the phone with Verizon.
They assured me that my phone was provisioned for everything but my SIM card was very old (true) and potentially the issue... something about it being issued well prior to VoWiFi being rolled out (likely also true based on quick Google search).
This seemed like a real stretch to me but I ended up at the store with a real decent Rep/Tech (surprising I know) who confirmed that my phone was provisioned for everything but, nonetheless, also thought the SIM was a stretch to resolve the problem.
Fast forward past him having a ton of issues with my account and nicely gaming a bunch of stuff to work around their system (using IMEI/MEID's from the recycle box... lol, I tell the truth and was impressed/shocked); I end up with a new SIM but still have nothing working and he is out of answers as well.
I came back home and started massaging settings via Shortcut Master and eventually got VoWiFi working but came up short on Hotspot which is where my OP came in.
My OP skipped this detail because I thought it was fluff but, to circle back, there may be something relevant in that for the local Rep to have to game their system might suggest Verizon has a technical/provisioning issue with my device.
It wouldn't be the first time I've had a major Telco screw my services up... (I once ended up with a $12K bill in Australia due to Telstra setting my 3G phone up for old school 2G data access which was billed at ludicrous rates - ended up resolved amicably tho I had a major initial flipout).
Windza said:
ChazzMatt, here's the kicker - that seemed like an obvious and logical argument to me initially as well BUT I had issues initially with not having any of the good stuff on VS996 and ended up on the phone with Verizon.
They assured me that my phone was provisioned for everything but my SIM card was very old (true) and potentially the issue... something about it being issued well prior to VoWiFi being rolled out (likely also true based on quick Google search).
This seemed like a real stretch to me but I ended up at the store with a real decent Rep/Tech (surprising I know) who confirmed that my phone was provisioned for everything but, nonetheless, also thought the SIM was a stretch to resolve the problem.
Fast forward past him having a ton of issues with my account and nicely gaming a bunch of stuff to work around their system (using IMEI/MEID's from the recycle box... lol, I tell the truth and was impressed/shocked); I end up with a new SIM but still have nothing working and he is out of answers as well.
I came back home and started massaging settings via Shortcut Master and eventually got VoWiFi working but came up short on Hotspot which is where my OP came in.
My OP skipped this detail because I thought it was fluff but, to circle back, there may be something relevant in that for the local Rep to have to game their system might suggest Verizon has a technical/provisioning issue with my device.
It wouldn't be the first time I've had a major Telco screw my services up... (I once ended up with a $12K bill in Australia due to Telstra setting my 3G phone up for old school 2G data access which was billed at ludicrous rates - ended up resolved amicably tho I had a major initial flipout).
Click to expand...
Click to collapse
To add to the confusion -- this is from the Verizon Pie TWRP-flashable zip ROM thread:
https://forum.xda-developers.com/lg...lg-v30-joan-vs996-verizon-30c-t3974139/page13
Teldin2 said:
Has anyone had any luck provisioning the hotspot on the stock image? I've tried several methods with no success.
Click to expand...
Click to collapse
PerCompLLC said:
No issues at all with me. I use it every day! Worked out of the box.
Sent from my VS996 using Tapatalk
Click to expand...
Click to collapse
EDIT: Never mind. He has unlimited data.
__________
Windza said:
a real decent Rep/Tech (surprising I know) who confirmed that my phone was provisioned for everything but, nonetheless, also thought the SIM was a stretch to resolve the problem.
Fast forward past him having a ton of issues with my account and nicely gaming a bunch of stuff to work around their system (using IMEI/MEID's from the recycle box... lol, I tell the truth and was impressed/shocked)
Click to expand...
Click to collapse
My brother-in-law (who could sell snow to Eskimos) and my sister recently switched from AT&T to Verizon with two former LS998 V30+ converted to US998 V30+. NOT bootloader unlocked. Just stock phones.
Yes, "US998" with Oreo 20h are carrier unlocked phones (with CDMA and LTE band 13), but I know you need an already-activated Verizon SIM card. Verizon is NOT going to activate a SIM card on former Sprint LS998 V30+...
But my brother-in-law found a store rep willing to help. The guy said, "They will tell you this phone doesn't work on Verizon, but it does." He activated two SIM cards for them, let them go drive to their neighborhood and test them out. They are switching to Verizon because the upscale neighborhood they are moving to has an AT&T black hole. Only Verizon works there. (Even AT&T microcell doesn't work well, because of size of the house and thick walls. And they don't get AT&T Wi-Fi calling because it's not AT&T branded hardware.)
Any great Verizon signal. Not sure if the rep provisioned VoLTE or not, as I haven't touched the phones recently. But they are very happy. The guy told them, "If something happens and you need help, come to the store and ONLY SEE ME. Don't tell anyone else what I've done."
Nice to find someone like that, but my brother-in-law is GREAT about finding people like that. He's a very successful salesperson and knows how to make people WANT to help him. What's really scary is when he turns his skill set against other salespeople. You should see him when shopping for a car.
"What color are you looking for, sir?"
"Doesn't matter, it's just all sheet metal to me. Color isn't important."
When he really has his eye on that cobalt blue SUV or whatever...
"Oh, that one? I guess I could drive that if you've got nothing better."
When he gets finished, it's like they've been hypnotized.
He walks out with exactly what he came to get, and at fantastic price.
I'm pretty new to both rooting and this website, so I apologize in advance for any newbie mistakes I'm gonna make.
Background:
I have a VS-996 which frankensteined and unlocked by following this post . After doing that I flashed pie and then flashed lineage os from here . That rom wasn't very stable and kept crashing, so I tried others. I wound up going with Havoc OS. I believe it was in 3.4 when I first flashed it. I've kept up with the updates up to 3.7.
The Problems:
Havoc OS works fine for me, very stable, except for some reason phone calls and messages(both sms and MMS) are spotty at best. Sometimes texts won't send at all, or they'll act like they sent but the text won't be recieved. Sometimes my phone will say I can make emergency calls only. Group messages and sending pictures don't seem to work at all, at any time. These issues seem most prevalent immediately after booting my phone up. Data works perfectly except sometimes when the phone doesn't like to register that the SIM is inserted for a little bit after booting up.
What I've tried:
I've tried reinstalling the rom.
I've tried installing different Android 10 roms.
I've tried going through the process again starting at the the Frankenstein method and going from there.
I've tried messing with the apn
If I flash back to a stock pie ROM everything goes back to working perfectly, and I'm using my sim in my old V20 while I try to sort this out, so I know the SIM is not to blame.
I've been unable to find anybody else with this particular problem, though that could just be because the problems cover so many different aspects that I'm not sure exactly how to search for answers.
Any help is appreciated, thanks.
olliethehobo said:
Havoc OS works fine for me, very stable, except for some reason phone calls and messages(both sms and MMS) are spotty at best. Sometimes texts won't send at all, or they'll act like they sent but the text won't be recieved. Sometimes my phone will say I can make emergency calls only. Group messages and sending pictures don't seem to work at all, at any time. These issues seem most prevalent immediately after booting my phone up. Data works perfectly except sometimes when the phone doesn't like to register that the SIM is inserted for a little bit after booting up.
Click to expand...
Click to collapse
Are you Verizon customer? You say you have VS996.
There's an LOS ROM bug for Verizon SIM card users where upon rebooting the phone you have to make a phone call first to then receive texts. This phone call "registers" the SIM card or whatever. Many people call their voicemail number to satisfy this requirement.
This bug affects all LOS-based ROMs.
Yes I am a verizon customer. I had noticed that making a phone call seemed to help things along when messages wouldn't send. I guess I managed to let my phone die or turn it off enough to hide the fact that it fixed me. Giving it a test just now it seems to be working correctly. I don't know if I'll be happy or mad if the solution turns out to be this simple.
olliethehobo said:
Yes I am a verizon customer. I had noticed that making a phone call seemed to help things along when messages wouldn't send. I guess I managed to let my phone die or turn it off enough to hide the fact that it fixed me. Giving it a test just now it seems to be working correctly. I don't know if I'll be happy or mad if the solution turns out to be this simple.
Click to expand...
Click to collapse
Was noted extensively on LOS-16 ROMs, but not discussed as much with LOS-17 (Android 10) ROMs. But earlier this month someone in the Havoc 3.7 (LOS-17 based) thread did bring it up...
July 9, 2020
https://forum.xda-developers.com/lg-v30/development/rom-havoc-os-3-3-t4062657/page39
XxD34THxX said:
Would anyone happen to know a fix for the having to make a call on verizon to receive incoming calls/text messages-
It's the main thing preventing me from running any android 10 rom. Have an unlocked (True) US998
Click to expand...
Click to collapse
gimpy1 said:
I don't know of a fix, but, I always called my voice mail to get it to work. I haven't been on a custom room for a little while. I assume that still works, though.
Click to expand...
Click to collapse
However, the larger problem is in six months you will not be able to use LOS-based custom ROMs with V30 on Verizon.
* As of December 31, 2020 Verizon is dropping 3G CDMA to repurpose bandwidth for 5G.
After that date, to make any phone calls on Verizon you will need VoLTE. No LOS-based custom ROMs have VoLTE. You will need stock Verizon firmware. It can be rooted stock firmware; you can use Magisk modules to add features -- but needs to be Verizon firmware for VoLTE.
* T-mobile users are in the same predicament.
In January 2021, T-mobile will be dropping 3G HSPA for same reasons. T-mobile users will need VoLTE, which only comes with V30 stock firmware. However, T-mobile is less stingy. They also allow US998 firmware to have VoLTE and Wi-Fi calling with T-mobile SIM. Whereas Verizon requires Verizon stock firmware, and it needs to have been activated on a phone with Verizon IMEI at some point.
* AT&T will also eventually drop 3G HSPA -- but not until February 2022 (18 months from now).
So, for U.S. V30 owners who wish to run custom ROMs a little longer, you should check out AT&T Prepaid. It's a lot cheaper than "regular" AT&T, but is only for people who own their phones.
18 months is a long time. Anything can happen in 18 months!
AT&T only gives VoLTE to AT&T IMEI phones, as well as iPhones and some other phones I would never own. I've never used an AT&T branded phone on AT&T. I'm an AT&T customer with three native US998 for myself, my wife, my mother -- so I'll cross that bridge when I come to it in February 2022. Will probably give my mother an AT&T V35. Maybe my wife, too. Also, LG may get their act together and produce a good phone fro the LG V70 or LG V80.
Any Verizon, T-mobile (and Sprint), and AT&T MVNOs (Straight Talk, Ting, etc.) will also be affected by these decisions.
I have a more extensive discussion of this issue here:
All U.S. V30/V3O+/V30S will need stock firmware, not LOS-based custom ROMs. When?
https://forum.xda-developers.com/lg-v30/how-to/s-v30-v3o-v30s-stock-firmware-los-based-t4138223
I have an unlocked Sprint lgv30 Plus. It's an LS998. Switched it over to T-Mobile it has a T-Mobile SIM card in it everything works with the phone like LTE and SMS just not MMS. Tried a few times with the techs at T-Mobile and they can't seem to find the problem. Can anybody help with this problem? Thanks in advance
Is it bone-stock otherwise, or have you bootloader unlocked or rooted or rommed to get to LS998?
schwinn8 said:
Is it bone-stock otherwise, or have you bootloader unlocked or rooted or rommed to get to LS998?
Click to expand...
Click to collapse
I don't understand bone stock but it was purchased from Sprint and nothing was done to it it's stock from Sprint. Nothing worked with the T-Mobile SIM until we got it unlocked from Sprint and we created the APN for T-Mobile. We tried all suggested APNs and still everything works but MMS.
Well, if it was purchased from Sprint, then they should be held responsible... it's their phone and ROM after all. TMo merged with Sprint, so it's their problem as well... not yours.
Without rooting the phone, there isn't a lot we can do here on XDA, because the manufacturers and carriers have locked you out of such things anyway. Once rooted, there are things we can try, but this should be your last recourse... it's their problem, make them fix it. If they can't then they should give you a replacement phone that works... after all, that's what you paid for.
Stinkflyz said:
I don't understand bone stock but it was purchased from Sprint and nothing was done to it it's stock from Sprint. Nothing worked with the T-Mobile SIM until we got it unlocked from Sprint and we created the APN for T-Mobile. We tried all suggested APNs and still everything works but MMS.
Click to expand...
Click to collapse
You can always convert to US998 and see if that works to get MMS. There are many T-mobile customers on US998 firmware.
I spoke with T-Mobile and they said there's nothing they can do and they're only offering me $21 for the phone so I would like to do what I can to get it working such as routing and putting on us998 but I don't know how
Stinkflyz said:
I spoke with T-Mobile and they said there's nothing they can do and they're only offering me $21 for the phone so I would like to do what I can to get it working such as routing and putting on us998 but I don't know how
Click to expand...
Click to collapse
https://forum.xda-developers.com/t/...ar-instructions.3790500/page-10#post-76584629
That's surprising. How long ago did you buy this phone? I would certainly put up a much bigger stink with them, as they sold you a defective product. Of course, if it's been a while, then I misunderstood... your initial post implied it was a recent purchase.
Anyway, as for rooting it, use the WTF thread (as mentioned by ldeveraux above). The key is you must read it carefully and completely... multiple times... and on a PC NOT ON THE PHONE. The post is long, but the post is very clear and details ALL the paths you would need to take. You may not need to follow all of them, so you do the ones that apply to you, one by one. Print out the post, and have it handy to use a a checklist to go through the process.
If you're not sure, you can certainly ask on that thread. Keep in mind, MANY people have used this process without issue, so if you're missing something it's likely in the post, and you just need to be more careful reading it. In reality, you should have no questions, as everything is in there... so please make the effort to read it carefully, multiple times, and follow the instructions. It's not difficult... just very specific and precise.
Stinkflyz said:
I spoke with T-Mobile and they said there's nothing they can do and they're only offering me $21 for the phone
so I would like to do what I can to get it working such as routing and putting on us998 but I don't know how
Click to expand...
Click to collapse
You may not have to unlock bootloader and root just to get T-mobile MMS. I would first just try installing US998 firmware.
If that works, then later you can decide whether you wish the total control over your phone that root brings.
You would need to do some of this anyway for the "WTF" boootloader unlock and root method, but right now you don't have to do it all.
You just need to follow the Frankenstein instructions and first flash Nougat US998 (very old, but necessary), then do a Master Reset (explained in the instructions) to stop any bootlooping. Then you would install US998 firmware more recent like Oreo 20H US9998 (very stable, lot of fixes and improvement).
After that, put in your T-mobile SIM card and see if you get MMS. With US998 firmware you will now have these bands:
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
As I said before, we have lots of T-mobile users on US998 firmware. So, surely they are getting MMS.
If that works to solve your problem and then you still wish to unlock bootloader and root, in the WTF Instructions you would have to do some of those same steps anyway (Nougat US998 and Master Reset), but would just TEMPORARILY use an earlier version of Oreo US998 (like 20a or 20b) before moving on to US998 20h.
Follow the "Frankenstein" instructions linked above. Read in a web browser, not an app. There's also several Trouble Shooting Steps at the bottom of that post.
This same issue happened to me, as well, except the problem was only with sending or receiving from apple devices. MMS and pictures worked fine to and from android devices. I purchased a V30+ from sprint back in 2017. Switched to T-Mo in Jan., 2021. My V30+ is stock. T-Mo's solution was to replace my V30+ with an LG Velvet as they could not figure this out and didn't want to be bothered. Was told it was my device and going from CDMA to GSM. I really like my V30+ and would love to find out how to get MMS working again so I can return this Velvet within the 14 days I have. Is it true if changing from LS998 to US998 that you lose VOLTE and WiFi Calling? These are important to me and would hate to loose those features but would also love to get the DTS audio. Any help is appreciated.
1hollowell1 said:
This same issue happened to me, as well, except the problem was only with sending or receiving from apple devices. MMS and pictures worked fine to and from android devices. I purchased a V30+ from sprint back in 2017. Switched to T-Mo in Jan., 2021. My V30+ is stock. T-Mo's solution was to replace my V30+ with an LG Velvet as they could not figure this out and didn't want to be bothered. Was told it was my device and going from CDMA to GSM. I really like my V30+ and would love to find out how to get MMS working again so I can return this Velvet within the 14 days I have. Is it true if changing from LS998 to US998 that you lose VOLTE and WiFi Calling? These are important to me and would hate to loose those features but would also love to get the DTS audio. Any help is appreciated.
Click to expand...
Click to collapse
No, that's NOT true with T-Mobile. US998 supports T-Mobile VoLTE and Wi-Fi calling. Or at least they do with older SIM cards. Someone with newer SIM card says something may have changed. But that person had an MVNO SIM card, not official T-Mobile SIM card. Another MVNO said his SIM card still works just fine.
Follow the Frankenstein instructions, change to US998 Nougat, then Master Reset, then US998 Oreo 20h.
I tried looking at the Franken phone instructions and being a newbie I did not understand them so they're no use to me I've rooted phones in the past but I don't understand the instructions
I am on red pocket service. I just received an email stating I do not have VOLTE enabled and may lose service. Supposedly, I should be able to enable VOLTE. I reached out to customer service in the past and they stated it is active on their side. Their website says I should be able to see it under settings -> mobile network; but I see not options for VOLTE. I have had **** service the past few months, with texts not being sent despite it showing bars or texts incoming taking a while; I wonder if this is related. Can anyone please help me?
I am on Android 8.0.0
Kernel 4.4.78
Version: US99820h
If it helps, VoLTE plus app says VOLTE is enabled. Do I need to be concerned? Is there any reason my service seems to run like crap? It's red pocket GSM-T. Had many people tell me calling me goes straight to voicemail, I get texts late, for confirmation texts I often have to restart the phone to get the texts to come through... Any fix to this? Should I switch to a different image and go onto a different set of towers/service?
Many V30 phones require the carrier's ROM to operate VOLTE. For example, when I was on Verizon, I had to have VS996 to get VOLTE to work. I also used it on Total Wireless (which is a VZ MVNO) for the same reason.
I'm guessing your GSM-T means you're on TMo, so you may need a TMo ROM to get VOLTE to work. US998 is a world-phone ROM, so it's not carrier specific, which may be why it doesn't work.
As for the general operation, you should be fine on US998 for all other functions... so if you're having issues then there may be something else going on.
You might also just need some updates - 20h is nougat level, which is ancient. You may need to move to Oreo... which worked great for me on my V30 in the past.
schwinn8 said:
Many V30 phones require the carrier's ROM to operate VOLTE. For example, when I was on Verizon, I had to have VS996 to get VOLTE to work. I also used it on Total Wireless (which is a VZ MVNO) for the same reason.
I'm guessing your GSM-T means you're on TMo, so you may need a TMo ROM to get VOLTE to work. US998 is a world-phone ROM, so it's not carrier specific, which may be why it doesn't work.
As for the general operation, you should be fine on US998 for all other functions... so if you're having issues then there may be something else going on.
You might also just need some updates - 20h is nougat level, which is ancient. You may need to move to Oreo... which worked great for me on my V30 in the past.
Click to expand...
Click to collapse
So, do you think I would need switch to a newer ROM, specifically for tmobile? I have been on us998 since buying it, always had some issues with texts coming in late and connectivity (although not as bad as when I had a S5 on Ting's t-mobile network). I had called and been told VOLTE is active with red pocket twice in the past, but despite always being on wifi I've still had people tell me I do not always come in clear when talking on the phone.
Can you point me to a newer ROM you used? I can try updating and messing with the phone later this month.
You can't use my ROM (VS996), as it was for Verizon. I doubt that will work for you. You need to find the proper on for your carrier (TMobile most likely) and see if that fixes the issues. All my ROMs I sourced from this website/forum, so you just need to search the V30 section here.
Note, when switching ROMs, you will need to wipe it so be prepared with backups for your data.
SuperUser1010 said:
So, do you think I would need switch to a newer ROM, specifically for tmobile? I have been on us998 since buying it, always had some issues with texts coming in late and connectivity (although not as bad as when I had a S5 on Ting's t-mobile network). I had called and been told VOLTE is active with red pocket twice in the past, but despite always being on wifi I've still had people tell me I do not always come in clear when talking on the phone.
Can you point me to a newer ROM you used? I can try updating and messing with the phone later this month.
Click to expand...
Click to collapse
Just be careful NOT to flash H932 ROM on your device, it will brick your phone.
You could try updating to us998 Pie ROM and see if it helps.
tech_infinity said:
Just be careful NOT to flash H932 ROM on your device, it will brick your phone.
You could try updating to us998 Pie ROM and see if it helps.
Click to expand...
Click to collapse
Do you have a us998 pie rom you recommend for me to try?
tech_infinity said:
Just be careful NOT to flash H932 ROM on your device, it will brick your phone.
You could try updating to us998 Pie ROM and see if it helps.
Click to expand...
Click to collapse
I saw chazzmatt mention in another thread that when t mobile and sprint merged, VoLTE/VoWiFi calling on US998 firmware phones may have been lost. He suggested that changing to verizon version is a way to fix this. Is this something I may have to do? And is there a guide on how to do it? I only see switching to us998.
And this would this be the rom to flash to for android 9?
[US998][STOCK][PIE]LG V30 US998 US99830b_00_0902.KDZ
RECOVERY TIPS if you get stuck on logo while updating to this wonky US998 Pie. < Please stop asking in Telegram thread or creating new XDA threads when it's right here. We will just direct you back here. OK? ____________ * Do NOT update to Pie...
forum.xda-developers.com
@ChazzMatt is the resident expert, so you can certainly take his advice. I saw that post as well.
Converting to VS996 just means you will use LGUP to flash that ROM over your current one. The end of the WTF post/thread talks about this process as well (be sure to read that post on a computer, as phones often cut-off the bottom).
Note that this will erase your data, so backup/etc as necessary before doing that. My recommendation is to use the last Oreo version of the ROM, as Pie on VS996 had issues last time I had heard... that's the last ROM I used before switching to my other phone.
SuperUser1010 said:
I saw chazzmatt mention in another thread that when t mobile and sprint merged, VoLTE/VoWiFi calling on US998 firmware phones may have been lost. He suggested that changing to verizon version is a way to fix this. Is this something I may have to do? And is there a guide on how to do it? I only see switching to us998.
And this would this be the rom to flash to for android 9?
[US998][STOCK][PIE]LG V30 US998 US99830b_00_0902.KDZ
RECOVERY TIPS if you get stuck on logo while updating to this wonky US998 Pie. < Please stop asking in Telegram thread or creating new XDA threads when it's right here. We will just direct you back here. OK? ____________ * Do NOT update to Pie...
forum.xda-developers.com
Click to expand...
Click to collapse
And in doing so, they still need an already-activated Verizon SIM card or Verizon MVNO SIM card. Verizon won't activate a SIM card with a phone that doesn't have native Verizon IMEI. But you can stick in an already activated SIM card into a v30 with VS996 firmware and it's fine. So whoever does this needs to also have an old Verizon phone for that purpose. Buy some cracked screen Verizon phone off eBay, activate Verizon or Verizon MVNO SIM card, THEN put that SIM card into Frankenstein'ed phone flashed with VS9996 (Verizon) firmware.
ChazzMatt said:
And in doing so, they still need an already-activated Verizon SIM card or Verizon MVNO SIM card. Verizon won't activate a SIM card with a phone that doesn't have native Verizon IMEI. But you can stick in an already activated SIM card into a v30 with VS996 firmware and it's fine. So whoever does this needs to also have an old Verizon phone for that purpose. Buy some cracked screen Verizon phone off eBay, activate Verizon or Verizon MVNO SIM card, THEN put that SIM card into Frankenstein'ed phone flashed with VS9996 (Verizon) firmware.
Click to expand...
Click to collapse
Are phone numbers attached to the sim? So I would have to: obtain verizon sim card, transfer my phone # while activating a plan on it using another phone, then place it into my current phone after flashing it into VS9996 and upgrading it to 9.0?
Yes, the phone number is attached to the SIM card.
Yes, your steps are correct - activate SIM on some other phone, then put it into the VS996.
schwinn8 said:
Yes, the phone number is attached to the SIM card.
Yes, your steps are correct - activate SIM on some other phone, then put it into the VS996.
Click to expand...
Click to collapse
Hmmm, perhaps before I spend money to switch to verizon I should try upgrading from US99820h to US99830b using that thread I posted above? Maybe that will fix things for me. I thought I had fixed something when I updated my redpocket APN point, but I still get random loss of service where I live and work at (despite constant wifi). According to redpocket customer service, being locked into 240 MNC sim card does not change anything compared to 280 MNC.
Perusing the us99830b thread, I saw if I have TWRP installed then I must use johnfawk's image to flash. I cannot "upgrade" and keep all my data using the firmware off LG's website with LGUP. Am I understanding that part correctly? And the TWRP image for me to download is this link? Mirror Link
First, my recommendation is to stay at Oreo (20-series) ROMs. Last I recall, the V30 Pie rom had issues that were never fixed.
Secondly, yes, I don't believe you can upgrade the ROM... you will need to flash the full ROM which would erase things. That being said, since you're already converting between ROMs you will need to wipe the phone anyway, so do all the updates/upgrade BEFORE you install anything else on your phone. And, of course, backup everything you need before doing that...
schwinn8 said:
First, my recommendation is to stay at Oreo (20-series) ROMs. Last I recall, the V30 Pie rom had issues that were never fixed.
Secondly, yes, I don't believe you can upgrade the ROM... you will need to flash the full ROM which would erase things. That being said, since you're already converting between ROMs you will need to wipe the phone anyway, so do all the updates/upgrade BEFORE you install anything else on your phone. And, of course, backup everything you need before doing that...
Click to expand...
Click to collapse
You mentioned before that 20h is nougat level, but my android version says 8.0.0, isn't that oreo already?
Looking at this site: https://lg-firmwares.com/lg-us998-firmwares/
I am already at the latest Oreo software. So, several questions:
1. I could back up all my stuff and risk missing something, but I can also just create a current TWRP image and go back to where I am presently in terms of all my stuff?
2. Should I be trying a https://lg-firmwares.com/lg-vs996-firmwares/ VS99620k version? When I reboot my phone it says it is a LG V30+ThinQ and I vaguely remember the box it came with said LS998 crossed off, with it booting as a US998 phone.
3. I have an old CDMA Galaxy S3 (best phone I've had). Assuming I am able to boot it up, can I buy a verizon MVNO sim card (let's say off of TING), switch my phone # to that and pop it in the S3? Or can I bum someone else' verizon phone and do this, then give the phone back instantly?
4. If a friend has an old verizon sim card, can I use that to utilize either red pocket or ting services?
5. Then, flash this US99820h to VS99620k, swap the sim card out of the S3 into the newly flashed V30?
6. Assuming I do all this and I still see no menu for VOLTE, assuming I still have the same issues of service dropping constantly, any suggestions for moving to a new phone, or what to use to find a new phone? Many new phones seem to have lots of stuff I do not care for (fancy cameras...) and no 3.5mm jack; but I really crave a phone that is functional.
Sorry for lots of questions. But each day this phone is pissing me off more and more and reminding me to do something about it - been busy and have stuff I do not want to risk losing.
I didn't say 20-series was nougat... I said it was Oreo?
1) TWRP will backup everything, so you could use this as a way to "keep safe" what you have now, and maybe you can break into the ZIP and extract things here and there as needed, but I don't think you can use this as a way to restore just your programs/data... it's a whole-image that you need to restore, which includes the OS and such. But if you're already on Oreo, I don't think you need to do any of that?
2) Yes, you can apply VS99620k. I believe that's what I had on my V30 before I left it. I wouldn't pay much attention to the splash screens on bootup... they change between versions but don't really mean/do anything from what I could see. My phone started as US998 (without the "ThinQ" branding) and I believe it showed the ThinQ branding when I was on VS996.
3) Yes, you'll need an activated SIM on VZ to transfer. Yes this is one way to do it. I did something similar with my Droid Turbo. VZ won't activate anything unless the IMEI matches THEIR phone, so this is one way to get that to happen. The trick, today, is that VZ may not activate the old phone because it's not VOLTE capable, so they'll say it's not supported, so that's a risk you should be aware of. For that matter, a newer SIM also may not work on the older phone... I don't know if that's a thing or not.
4) I don't know if MVNOs will let you use VZ SIM cards. Technically, they should be able to, but my guess is they will require their "own" SIM. You'd have to ask the MVNO.
I moved to the Galaxy S10+, which is a similar size phone, has a headphone jack, and is older so it's lower cost (I think I paid $300 about a year or two ago). A few other V30 faithfuls have followed this path as well. I think ChazzMatt went to a Note because that's what ATT gave him to help him transition to a VOLTE-capable phone. I believe he's still using his V30 though.
Newer Galaxy phones lost the headphone jack. I would recommend getting yourself ready for this eventuality... it may mean just getting a dongle, which isn't convenient, or getting bluetooth adapters... but my point is that it's going away whether you like it or not, so start preparing now.
EDIT: I forgot to mention, the S10 is not rootable (at least with Snapdragon). Exynos can be rooted, but I don't know how usable those are in the USA. That's another thing you may need to get used to - not being able to root/ROM. IMO, it's not necessary anymore, and I have given up on it on my phones... and I haven't missed it AT ALL. But I know some have gotten into heated arguments with me over that... one I recall was particularly nonsensical, but whatever. If I could root, I would do that... but I don't see it as a requirement anymore.
SuperUser1010 said:
Hmmm, perhaps before I spend money to switch to verizon I should try upgrading from US99820h to US99830b using that thread I posted above? Maybe that will fix things for me. I thought I had fixed something when I updated my redpocket APN point, but I still get random loss of service where I live and work at (despite constant wifi). According to redpocket customer service, being locked into 240 MNC sim card does not change anything compared to 280 MNC.
Perusing the us99830b thread, I saw if I have TWRP installed then I must use johnfawk's image to flash. I cannot "upgrade" and keep all my data using the firmware off LG's website with LGUP. Am I understanding that part correctly? And the TWRP image for me to download is this link? Mirror Link
Click to expand...
Click to collapse
As @schwinn8 recommends staying on Oreo, I also concur.
1) If you have TWRP, just flash the Verizon last Oreo by John Fawkes. See link below.
LG V30 Verizon VS996-20k ROM
Working downlink mirror: VS996 20K Verizon TWRP-flashable ZIP
2) If you don't have TWRP installed -- for people who are not bootloader unlocked -- then you would flash full stock ROM VS996 20K "KDZ" file from US998. See top post in this thread. (For those who are still bootloader locked, the stock Verizon ROMs and US998 ROMs are the only ones for North America variants which are safely fully cross flashable without first having to go through the "Frankentein" conversion "Nougat" stage.)
As for spending money on Verizon to get VOLTE, there are several Verizon MVNOs that are less expensive than Verizon proper and will still do the trick. Both Visible and Total Wireless are even owned by Verizon, like Cricket is owned by AT&T.
RedPocket also offers Verizon-network SIM cards. They are also a Verizon MVNO. Which carrier service are you using with your RedPocket? They offer choice of AT&T (most common), T-Mobile and Verizon. I searched your posts in this thread and you don't say which you have -- so I assume the AT&T-linked SIM card? If you flash the last Oreo TWRP-flashable zip for Verizon, and you want to keep RedPocket, just have them ship you the Verizon-linked SIM card. You should then have VoLTE.
NOTE: You would still need to use an old Verizon phone to activate that SIM card, but then you could put it into your "VS996". I'm only suggesting a way to not have to actually switch to Verizon, you can still use Redpocket but have them send you a Verizon linked SIM once you are on Verizon firmware.
ChazzMatt said:
As for spending money on Verizon to get VOLTE, there are several Verizon MVNOs that are less expensive than Verizon proper and will still do the trick. Both Visible and Total Wireless are even owned by Verizon, like Cricket is owned by AT&T.
RedPocket also offers Verizon-network SIM cards. They are also a Verizon MVNO. Which carrier service are you using with your RedPocket? They offer choice of AT&T (most common), T-Mobile and Verizon. I searched your posts in this thread and you don't say which you have -- so I assume the AT&T-linked SIM card? If you flash the last Oreo TWRP-flashable zip for Verizon, and you want to keep RedPocket, just have them ship you the Verizon-linked SIM card. You should then have VoLTE.
NOTE: You would still need to use an old Verizon phone to activate that SIM card, but then you could put it into your "VS996". I'm only suggesting a way to not have to actually switch to Verizon, you can still use Redpocket but have them send you a Verizon linked SIM once you are on Verizon firmware.
Click to expand...
Click to collapse
Got it, if flashing is all I have to do, this will be simple.
I was not clear, I did mean verizon MVNOs, meant more verizon in broader sense: CDMA. I am currently on red pocket T mobile. I was previously on Ting. Had similar issues on both with randomly losing service. It was bearable, but since 3G shutdown timeframe, this became a larger and more frequent issue. Currently, if I turn on data, I get Edge service (I read this is 2g?), otherwise when I am having a texting conversation, I am regularly losing service completely and do not have strong service in places where other Tmobile users have regular service.
On another note, I am looking to swap from red pocket; I spoke to customer service about call records, was told several times they would be sent to me, never received anything. Red pocket prices are hard to beat though.
I impulse bought a pixel 7 unlocked too (there were some incentives that were hard to resist). So, I will probably swap to that phone while holding onto this one and tinkering to see if it was a phone issue, US998 issue, SIM issue, service issue... then give the phone to family in a year or so.
Hello!
Can someone please help me with this?
Everything was fine until 2-3 days ago. When all of a sudden I was unable to send text messages or make phone calls. All the while I could access internet without any issues.
If I switch to 2G or EDGE for the Subnetwork, I can make calls and send SMS.
How can I fix this?
Could dropping the phone have caused this?
Dropping could certainly break something, of course, but let's assume that's not it.
What carrier? Is the phone officially supported by them (ie, IMEI matches the carrier)? Are you on their official ROM? Does/did your VOLTE work (before and after the "few days ago")?
Some carriers are switching over to VOLTE-only setups, so they may be testing that to see what works/doesn't before they make it final. In other words, maybe your phone is not "officially" supported by VOLTE on the carrier, which is why it's failing? Without VOLTE, I think text may fail as well (even if you're not actively on a call?)
That would be my first guess. In my case, for example, I was on a US998 phone (per IMEI) running VS996 on Verizon. Since the IMEI didn't match a VZ phone, they refused to say it was compatible (even though it worked fine for many years). The IMEI stuff is a bunch of BS, but that's a whole separate topic... but I wonder if this is what you're running into. It's the carrier's way to force you into "their" device, even though it's not any different from any other variant (when the proper ROM is installed).
schwinn8 said:
Dropping could certainly break something, of course, but let's assume that's not it.
What carrier? Is the phone officially supported by them (ie, IMEI matches the carrier)? Are you on their official ROM? Does/did your VOLTE work (before and after the "few days ago")?
Some carriers are switching over to VOLTE-only setups, so they may be testing that to see what works/doesn't before they make it final. In other words, maybe your phone is not "officially" supported by VOLTE on the carrier, which is why it's failing? Without VOLTE, I think text may fail as well (even if you're not actively on a call?)
That would be my first guess. In my case, for example, I was on a US998 phone (per IMEI) running VS996 on Verizon. Since the IMEI didn't match a VZ phone, they refused to say it was compatible (even though it worked fine for many years). The IMEI stuff is a bunch of BS, but that's a whole separate topic... but I wonder if this is what you're running into. It's the carrier's way to force you into "their" device, even though it's not any different from any other variant (when the proper ROM is installed).
Click to expand...
Click to collapse
Carrier texts should theoretically still work as they are "data". It's the "voice" part of VoLTE that won't work. That's why I can still receive carrier texts on my Galaxy Note 9 with AT&T -- which still has older firmware (so I can be rooted). A few months ago, I lost the ability to make/receive phone calls on my AT&T number when 3G towers were decommissioned in my area... But luckily I have Google Voice number, which also uses "data" (VoIP) so I make/receive all my Google Voice phone calls. (That's been my main phone number for years.)
However, I no longer can make/receive AT&T phone number calls -- which is fine. I switched Google Voice settings to data/Wi-Fi only instead of piggy backing on carrier phone number. Yet, I still receive AT&T texts, which is good because my bank insists on using a "real" (carrier) phone number for SMS security code confirmation.
Amer28 said:
Hello!
Can someone please help me with this?
Everything was fine until 2-3 days ago. When all of a sudden I was unable to send text messages or make phone calls. All the while I could access internet without any issues.
If I switch to 2G or EDGE for the Subnetwork, I can make calls and send SMS.
How can I fix this?
Could dropping the phone have caused this?
Click to expand...
Click to collapse
You are in Portland? What carrier are you using that still has 2G and Edge?
ChazzMatt said:
You are in Portland? What carrier are you using that still has 2G and Edge?
Click to expand...
Click to collapse
I'm with a company that uses T-Mobile towers. I connect just fine with 4G LTE, and get reasonably good speeds over it. But when I'm on 4G, I cannot make or receive calls or text. It says Emergency Calls Only.
So far, I've tried everything. I resettled network. I looked for different APN values that may fix the issue. When I couldn't think of anything else, I did a factory reset. (I mean, I wiped Data, and all other partitions in TWRP except for System and SD Card.) There have been no changes.
I'm starting to think the issue may be hardware, I did drop the phone a couple of times the day it stopped working. Though I usually end up dropping the phone once a day or every two days. I can't believe the screen hasn't cracked yet, at all. Could a drop from 3-4 feet on hard surface like tiles damage the antenna in such a way that only 4G data works?
I'm ready to give up and buy a new phone even though I can't really afford it. It would be awesome if I can get this to work.
schwinn8 said:
Dropping could certainly break something, of course, but let's assume that's not it.
What carrier? Is the phone officially supported by them (ie, IMEI matches the carrier)? Are you on their official ROM? Does/did your VOLTE work (before and after the "few days ago")?
Some carriers are switching over to VOLTE-only setups, so they may be testing that to see what works/doesn't before they make it final. In other words, maybe your phone is not "officially" supported by VOLTE on the carrier, which is why it's failing? Without VOLTE, I think text may fail as well (even if you're not actively on a call?)
That would be my first guess. In my case, for example, I was on a US998 phone (per IMEI) running VS996 on Verizon. Since the IMEI didn't match a VZ phone, they refused to say it was compatible (even though it worked fine for many years). The IMEI stuff is a bunch of BS, but that's a whole separate topic... but I wonder if this is what you're running into. It's the carrier's way to force you into "their" device, even though it's not any different from any other variant (when the proper ROM is installed).
Click to expand...
Click to collapse
I'm on T-Mobile towers with the US998. I don't think there is an issue with IMEI. How would I connect to data with 4G if that was the case?
I never had Volte on this phone. I do recall seeing it when I first got it but I'm running stock rooted Android 9.
When I say it used to work a few days ago, I mean it just stopped working at one point. I wanted to make a phone call, and all of a sudden, I couldn't. I noticed then that it says Emergency Only sign, so I walked around the house for about 15 mins to try to get signal. Then I went to my car and drove around, but nothing.
I messed around with Network settings, and figured out that Voice and TXT worked when I switch to a lower 'Sub-Network' setting that says, "GSM / GSPR / EDGE Only".
To get 4G Data back, I have to switch it back to "LTE/Legacy 3GPP multi"
These two are found under "GSM/UMTS Settings", after clicking on "System Select" in "Mobile Networks ".
I want to also mention that my carrier website has been talking about a data migration that would affect phones using their old SIM Card.
When I saw that, I called them and had them send me a new SIM. I thought surely this must be it, but the new SIM works exactly like the old one.
Perhaps the migration or whatever it is they did that required new SIM cards just doesn't work well with my phone? Even though, before putting the order in, the rep I spoke to did check my IMEI and said that my phone is compatible.
Agreed, it doesn't sound like an IMEI issue.
FWIW, I showed a 4G connection on a phone (I don't remember if it was my V30 or a Galaxy S10+ that I was going to replace it with). On that phone, at one point, but there was no actual connection. So, the indicators aren't always accurate. That's why I thought maybe the data isn't really working, and if data isn't working then VOLTE won't work... and with many of the carriers switching off non-VOLTE calling, that could kill the ability to make calls?
In your case, you said data worked... but if VOLTE was never enabled, and the carrier dropped non-VOLTE, then, again, you may lose calling.
In any case, these were my theories. I think you're on top of the situation but I don't have any other ideas for you to try...
Instead of buying a new phone, have you considered installing and setting up Google Voice, as ChazzMatt said? I recently had to do that because AT&T's 3G shutdown meant that I could no longer place or receive calls. My quick guide on doing that is here: https://forum.xda-developers.com/t/...-based-custom-roms-when.4138223/post-87342453
I don't know why you can't also send or receive texts, but the Google Voice app has the ability to do that, so maybe try using that after you've set it up.
Amer28 said:
I'm on T-Mobile towers with the US998. I don't think there is an issue with IMEI. How would I connect to data with 4G if that was the case?
I never had Volte on this phone. I do recall seeing it when I first got it but I'm running stock rooted Android 9.
When I say it used to work a few days ago, I mean it just stopped working at one point. I wanted to make a phone call, and all of a sudden, I couldn't. I noticed then that it says Emergency Only sign, so I walked around the house for about 15 mins to try to get signal. Then I went to my car and drove around, but nothing.
I messed around with Network settings, and figured out that Voice and TXT worked when I switch to a lower 'Sub-Network' setting that says, "GSM / GSPR / EDGE Only".
To get 4G Data back, I have to switch it back to "LTE/Legacy 3GPP multi"
These two are found under "GSM/UMTS Settings", after clicking on "System Select" in "Mobile Networks ".
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Click to collapse
There's been reports T-Mobile which is now merged with Sprint has borked the ability for VoLTE/VoWiFi calling on US998 firmware phones (native or Frankenstein'ed). Apparently they only allow it now on T-Mobile H932, whereas pre merger they were happy to give VoLTE and voWi-Fi calling to "US998" phones
First, it was reported with new SIM cards they were distributing earlier this year. Then people who kept their old SIM cards found they didn't work after a forced "security update."
This seems to have also trickled down to the T-Mobile MVNOs.
This is why we told someone else recently they should probably convert their phone from US998 on T-Mobile to Verizon VS996 firmware.
Then get a Verizon sim card or Verizon MVNO SIM card, and activate it in an old cracked screen Verizon phone off eBay, then put that already-activated SIM card into their "VS996" V30.
They will have VoLTE and VoWi-Fi calling.
Alternatively, if you really want to stick with T-Mobile network, you can do what @osprey00 suggested -- which is get a Google Voice number and use it as a tool to forward your carrier calls to it.
You can read his post, see his experiences, and see if this would apply to you.
For ME -- I've been using Google Voice for the past 10 years as my main phone number. I ported my carrier phone number at the time to Google Voice. Then got throwaway carrier numbers (whoever had cheapest plan) but never gave those to my friends. To my friends nothing ever changed. I've had the same "number" for the past two decades.
But within the past couple years, I had to start giving my bank and my cable company my carrier phone number for SMS security codes. Very annoying, because in the past they used my Google Voice number to text me with no problem.
So, even though under my current firmware (on my rooted Note 9) I cannot get carrier phone calls, I still have LTE data. And with the LTE data, I can use Google Voice (calls and texts) because it's VoIP. I also get AT&t carrier texts, as that is also data. It's just AT&T phone calls I cannot send or receive.
AT&T deactivated the SIM card in my native US998 V30+ and sent me a replacement phone, which is a Samsung Note 9. I'm staying with AT&T for a reason. Otherwise I would probably pull the "V30" Verizon trick also.
I bought both my wife and my elderly mother 64GB V35 phones -- which is basically an upgraded 64GB V30. (They previously had native US998 V30.) AT&T gives V35 VoLTE and WiFi calling, and for them there was nothing new to learn.
ChazzMatt said:
There's been reports T-Mobile which is now merged with Sprint has borked the ability for VoLTE/VoWiFi calling on US998 firmware phones (native or Frankenstein'ed). Apparently they only allow it now on T-Mobile H932, whereas pre merger they were happy to give VoLTE and voWi-Fi calling to "US998" phones
First, it was reported with new SIM cards they were distributing earlier this year. Then people who kept their old SIM cards found they didn't work after a forced "security update."
This seems to have also trickled down to the T-Mobile MVNOs.
This is why we told someone else recently they should probably convert their phone from US998 on T-Mobile to Verizon VS996 firmware.
Then get a Verizon sim card or Verizon MVNO SIM card, and activate it in an old cracked screen Verizon phone off eBay, then put that already-activated SIM card into their "VS996" V30.
They will have VoLTE and VoWi-Fi calling.
Alternatively, if you really want to stick with T-Mobile network, you can do what @osprey00 suggested -- which is get a Google Voice number and use it as a tool to forward your carrier calls to it.
You can read his post, see his experiences, and see if this would apply to you.
For ME -- I've been using Google Voice for the past 10 years as my main phone number. I ported my carrier phone number at the time to Google Voice. Then got throwaway carrier numbers (whoever had cheapest plan) but never gave those to my friends. To my friends nothing ever changed. I've had the same "number" for the past two decades.
But within the past couple years, I had to start giving my bank and my cable company my carrier phone number for SMS security codes. Very annoying, because in the past they used my Google Voice number to text me with no problem.
So, even though under my current firmware (on my rooted Note 9) I cannot get carrier phone calls, I still have LTE data. And with the LTE data, I can use Google Voice (calls and texts) because it's VoIP. I also get AT&t carrier texts, as that is also data. It's just AT&T phone calls I cannot send or receive.
AT&T deactivated the SIM card in my native US998 V30+ and sent me a replacement phone, which is a Samsung Note 9. I'm staying with AT&T for a reason. Otherwise I would probably pull the "V30" Verizon trick also.
I bought both my wife and my elderly mother 64GB V35 phones -- which is basically an upgraded 64GB V30. (They previously had native US998 V30.) AT&T gives V35 VoLTE and WiFi calling, and for them there was nothing new to learn.
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I think it was a hardware problem, honestly.
No matter what I did, I even tried different ROM to ensure I didn't mess around with root settings and somehow enabled or disabled something that I should not have. I tried flashing stock radios, and no, nothing would fix it.
I took my brothers phone to see if the SIM card would work with his phone, an unlocked Google FI phone. As soon as I installed the SIM, and booted up the phone, I could tell it was working perfectly even on the lock screen. Right away the status showed the name of the wireless company, and active 5G data icon on the status.
I must have damaged the internal radio or the LTE data modem when I dropped the phone last. The screen of the phone never broke even though I dropped the phone countless times, though the back glass has cracked lines all over even if the surface is still smooth and the phone continued being waterproof (I tested).
Anyway, I have since bought a new phone and the Data/Text/Talk all work perfectly on it.
I'm not sure what I'll do with this phone, as selling it wouldn't be ethical. And I doubt anyone would buy a phone with the warning that service may not work.
Ah well, I may just keep and use it as a test device.
Thanks to all who tried to help.
Amer28 said:
I think it was a hardware problem, honestly.
No matter what I did, I even tried different ROM to ensure I didn't mess around with root settings and somehow enabled or disabled something that I should not have. I tried flashing stock radios, and no, nothing would fix it.
I took my brothers phone to see if the SIM card would work with his phone, an unlocked Google FI phone. As soon as I installed the SIM, and booted up the phone, I could tell it was working perfectly even on the lock screen. Right away the status showed the name of the wireless company, and active 5G data icon on the status.
I must have damaged the internal radio or the LTE data modem when I dropped the phone last. The screen of the phone never broke even though I dropped the phone countless times, though the back glass has cracked lines all over even if the surface is still smooth and the phone continued being waterproof (I tested).
Anyway, I have since bought a new phone and the Data/Text/Talk all work perfectly on it.
I'm not sure what I'll do with this phone, as selling it wouldn't be ethical. And I doubt anyone would buy a phone with the warning that service may not work.
Ah well, I may just keep and use it as a test device.
Thanks to all who tried to help.
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Click to collapse
tried a rom on a j7 2015 because android 6 is going to be left and I only get emergency calls on lte and on 3g, no problem. It's not imei problem maybe exynos processor. I went back to 6.0.1 and no problem with 4g lite. By the way, I'm not in the USA.