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I'm having huge issues with my phone. I'm on a custom rom and even when I was on stock rooted, I've been missing calls left to right. So people call and it goes straight to voicemail. Sometimes it's two rings and then goes to voicemail. Any fixes that I should know of or am I just fxcked?
lowridincrew said:
I'm having huge issues with my phone. I'm on a custom rom and even when I was on stock rooted, I've been missing calls left to right. So people call and it goes straight to voicemail. Sometimes it's two rings and then goes to voicemail. Any fixes that I should know of or am I just fxcked?
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Im using Sprint v30+ on attending and have zero issues at all. Maybe it's Sprint problem and not your phone proble
lowridincrew said:
Sprint V30+ Unlocked to T-Mobile
I'm having huge issues with my phone. I'm on a custom rom and even when I was on stock rooted, I've been missing calls left to right. So people call and it goes straight to voicemail. Sometimes it's two rings and then goes to voicemail. Any fixes that I should know of or am I just fxcked?
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For some of the calls, could be a reception issue.
The callers hear two rings on their end or you hear two rings before going to voicemail? If the latter, then the phone was already ringing and due to reception you didn't hear it. If no reception, then calls will go unanswered and go to Voicemail.
Tell me what you mean by this: Sprint V30+ (LS998) Unlocked to T-Mobile
You're using T-mobile but you have a Sprint V30+ LS998? How is it unlocked? You Frankenstein converted to another variant, like US998 or it's actually still LS998 V30+ which Sprint unlocked for you? US998 has more T-mobile LTE bands than LS998 -- like LTE band 66. IF you haven't converted, you should.
ChazzMatt said:
For some of the calls, could be a reception issue.
The callers hear two rings on their end or you hear two rings before going to voicemail? If the latter, then the phone was already ringing and due to reception you didn't hear it. If no reception, then calls will go unanswered and go to Voicemail.
Tell me what you mean by this: Sprint V30+ (LS998) Unlocked to T-Mobile
You're using T-mobile but you have a Sprint V30+ LS998? How is it unlocked? You Frankenstein converted to another variant, like US998 or it's actually still LS998 V30+ which Sprint unlocked for you? US998 has more T-mobile LTE bands than LS998 -- like LTE band 66. IF you haven't converted, you should.
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I converted it to the US998 variant using the Frankenstein method and the callers hear two rings not me. I have no notification unless they leave a voicemail
Hey guys,
After using my V30 for a few days I realized I couldn't make or receive calls. This is weird because everything else works. The carrier is cricket.
I suspect a VoLTE configuration issue, but I don't know enough to dig into that.
Here's everything I know:
Old phone works with same SIM
SMS, MMS, and LTE data all work on V30
when placing calls, phone just says "calling" for 15-30s before showing "call ended"
when receiving calls, caller hears ring before going to voicemail
phone is new H931 frankensteined to US99820b/20h (have tried both)
Have tried reboot/reset several times
Cricket support was not much help and I don't have high hopes for LG support. Anyone experience a similar issue with their V30 or know enough about the secret menu to troubleshoot?
Thanks
I have had the US998 for 9 months and have had similar issues. I also have Cricket and for the first month, before I even rooted it, I had great service with the phone. Then I unlocked the bootloader and rooted it... Ever since I've had poor reception with the phone almost anywhere, especially when indoors. I have fine 4G internet speeds but have to go outside to make any phone call. I'm currently on rooted stock Pie through TWRP zip but I've tried countless Oreo roms, stock included, but the same problem has been with the phone for the past 7 months. I've tried every APN setting there is but keep in on global normally. Is it possible that we've messed up our modem partition? I'd think Cricket would use the same LTE bands as AT&T but I could be wrong.
johnnokomis said:
I have had the US998 for 9 months and have had similar issues. I also have Cricket and for the first month, before I even rooted it, I had great service with the phone. Then I unlocked the bootloader and rooted it... Ever since I've had poor reception with the phone almost anywhere, especially when indoors. I have fine 4G internet speeds but have to go outside to make any phone call. I'm currently on rooted stock Pie through TWRP zip but I've tried countless Oreo roms, stock included, but the same problem has been with the phone for the past 7 months. I've tried every APN setting there is but keep in on global normally. Is it possible that we've messed up our modem partition? I'd think Cricket would use the same LTE bands as AT&T but I could be wrong.
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I have no problems with AT&T signal on my rooted US998 V30+.
No, you haven't messed up your modem partition.
I have AT&T Prepaid. The only difference between that and Cricket is I have actual AT&T data servers (vs Cricket data servers) and my speeds are not capped. You're never going to see the speeds I have, because AT&T caps Cricket at 8mbps.
Why are you using "Global"? You should be using settings similar below: GSM/HSPA (sometimes called WCMDA)/LTE. Don't confuse "WCDMA" with "CDMA". They are totally different. WCDMA is HSPA, if you don't see HSPA in your settings.
GinR said:
Hey guys,
After using my V30 for a few days I realized I couldn't make or receive calls. This is weird because everything else works. The carrier is cricket.
I suspect a VoLTE configuration issue, but I don't know enough to dig into that.
Here's everything I know:
Old phone works with same SIM
SMS, MMS, and LTE data all work on V30
when placing calls, phone just says "calling" for 15-30s before showing "call ended"
when receiving calls, caller hears ring before going to voicemail
phone is new H931 frankensteined to US99820b/20h (have tried both)
Have tried reboot/reset several times
Cricket support was not much help and I don't have high hopes for LG support. Anyone experience a similar issue with their V30 or know enough about the secret menu to troubleshoot?
Thanks
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1) Check your APN. Make sure it's set to what you need for Cricket. Google Cricket APN.
2) You are not currently using AT&T firmware, so you will not have VoLTE. You need to turn VoLTE off in the settings if you see it. AT&T only allows certain phones on Cricket to use VoLTE -- and you currently have "US998", not H931.
If you see VOLTE setting turn it off, see if your phone calls can be made? Trying to use the VoLTE setting when you aren't allowed VoLTE will cause phone calls to fail.
If you bootloader unlock your phone and re-flash the AT&T H931 TWRP flashable zip, it's possible you get VoLTE IF Cricket is allowed VoLTE on H931 phones. Many AT&T postpaid customers are using rooted, bootloader unlocked H931 phones and have VoLTE because they flash to the H931 TWRP flashable zip.
What was your previous phone? Just saying your "old phone" tells us nothing whatsoever. Was it AT&T branded?
Are you sure you had VoLTE on your old phone with Cricket? Or you just assume you did? If it was an iPhone, then it's possible you had VoLTE on Cricket. If it wasn't, then you may just be assuming you did. I'm not current with the phones which have VoLTE with Cricket, I just know it has been very few.
Because AT&T keeps VoLTE as a premium feature -- although they have been giving it to more phones recently. But still usually with AT&T branded phones (which my US998 V30+ is not). I do not have VoLTE on AT&T Prepaid with my US998 -- and I couldn't care less.
You don't actually need VoLTE. When you make a phone call your phone can drop down temporarily to HSPA while you have the phone call and you will still have data. When the phone call finishes your phone will then return to LTE.
I have AT&T Prepaid, as does my wife and my mother -- and all our US998 V30/V30+ phones do exactly that. We do not have VoLTE and don't care.
See screenshot. If you find this setting, turn off VoLTE see if you can make/receive phone calls until you can flash the H931 TWRP flashable zip. But also find out if AT&T H931 can use VoLTE on Cricket.
LG V30 AT&T H931-20Q ROM
https://forum.xda-developers.com/lg-v30/development/lg-v30-att-h931-20f-rom-t3872926
Thanks for the detailed response.
My previous Cricket LG M327 definitely has VoLTE on Cricket per this list:
cricketwireless[dot]com/support/great-big-network/compatible-phones.html
There's also a settings option for it, and I can tell the difference between calls with/without.
If AT&T considers it a premium feature, you're probably right that it's limited to branded phones.
On my V30 I don't see an option for VoLTE in the option menu. I also don't have nearly as many options for mobile network mode as you do.
I will try flashing H931 to see if that changes anything.
GinR said:
Thanks for the detailed response.
My previous Cricket LG M327 definitely has VoLTE on Cricket per this list:
cricketwireless[dot]com/support/great-big-network/compatible-phones.html
There's also a settings option for it, and I can tell the difference between calls with/without.
If AT&T considers it a premium feature, you're probably right that it's limited to branded phones.
On my V30 I don't see an option for VoLTE in the option menu. I also don't have nearly as many options for mobile network mode as you do.
I will try flashing H931 to see if that changes anything.
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Check your APN also?
ChazzMatt said:
Check your APN also?
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I did check that. All correct.
I went to try it this morning and suddenly it worked on US99820b. I refurbished to 20h which is the version I want and switched to LTE/GSM network mode and it works.
Thanks for your help.
It worked for a day or so, then stopped working again. I think the issue is that Cricket is trying to provision the phone for VoLTE, but then their backend won't actually allow this IMEI to make VoLTE calls. I obtained an active SIM on another carrier and confirmed that the handset can make/receive both VoLTE and non-VoLTE calls.
Do any of you guys know how to disable VoLTE via adb/hidden menus? There is no option in the normal Settings menu with the cricket sim installed. My other option is to switch carriers.
I'm totally mystified by this. So I updated my G6 to Pie like a week ago, maybe even longer...and I'm fairly certain I've rebooted since then, though I suppose it's possible I have not. Anyway, I just rebooted my phone this morning, and now I'm getting no signal for my Unreal (AT&T MVNO) SIM. I reset all my network settings but no dice. I still have my Tracfone SIM that I don't use anymore, which is a Verizon MVNO, and that one there are no issues -- it picks up the LTE/CDMA signal right away.
I also have a spare FreedomPop SIM and that doesn't work, either, because I'm fairly certain it is also an AT&T MVNO. Why is this phone suddenly unable to use GSM? I've tried switching networks from Global to LTE/GSM but no dice.
PLEASE HELP!
It must've been a network issue, because the signal came back. It had nothing to do with the reboot. Crazy that the cell signal can go out like that...
Hi, did you install pie on vs988/98 ? If, then how did you do that. Can i flash h873 pie on verizon variant ? Cus right now i have coverted vs988 to h873 by flashing h873 kdz
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?
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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.
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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
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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
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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.
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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
Hello,
I purchased the LG v30 Plus us998 on Amazon. It's supposed to be able to run off of Verizon towers. I don't know if that's actually true because for the life of me I cannot get it to work. I really hate to send the phone back because I like it. Is there a way to do this? Thanks for any help.
I had converted two phones from H931 (AT&T) to US998. One converted fine, but the other refused to talk on VZ towers. I believe it's because there may have been a defect or something with it, which prevented the CDMA radio from working or something. I ended up returning and refunding that phone, thankfully.
You may have the same issue - it could be a phone that simply doesn't work on VZ for some other reason. I assume you are using an already-activated SIM card? VZ won't likely activate it on your phone, because they're idiots/jerks.
You may also consider trying a short-term plan/setup on a VZ MVNO like Total Wireless, which is what I have. That would also test you on VZ towers... and would only cost you 1-month's service (unless you stay on, of course, haha)
schwinn8 said:
I had converted two phones from H931 (AT&T) to US998. One converted fine, but the other refused to talk on VZ towers. I believe it's because there may have been a defect or something with it, which prevented the CDMA radio from working or something. I ended up returning and refunding that phone, thankfully.
You may have the same issue - it could be a phone that simply doesn't work on VZ for some other reason. I assume you are using an already-activated SIM card? VZ won't likely activate it on your phone, because they're idiots/jerks.
You may also consider trying a short-term plan/setup on a VZ MVNO like Total Wireless, which is what I have. That would also test you on VZ towers... and would only cost you 1-month's service (unless you stay on, of course, haha)
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Thanks for your answer. I have red pocket mobile which runs off Verizon towers. On my other phone it works fine. I took the sim out of that phone and put it into this one. I thought I would be able to do that since the phone is unlocked.
Yes, swapping in a SIM should work, but as I mentioned it doesn't always. Still, you may want to check your APN settings, in case they aren't updating automatically/properly. See what they were on the old phone, then swap in the SIM and make sure you have the same settings on the US998.
Functionally, it should work - I ran US998 for a short while on VZ when I first converted these phones. Since then, I switched to VS996 instead (because I was on VZ at the time, and wanted VOLTE to work). And then I changed to TW and am on that now, with VS996 still going (Oreo, as I see no reason to switch to Pie since Oreo works so well). Both my wife and I are on VS996 + TW for over a year now...