After many unfruitful hours on helplines both carrier (TracFone) and Google helpdesk I thought maybe there would be some help here from a person who knows more than a diagnostic tree book. 4G voice just quit, wont dial even, just immediately says call ended. 3G still works and they both still do data. I've reset, cleared cache on phone app and connectivity services, restarted, airplane on and off, basically everything I could think of short of a factory reset.
I think this is the most significant thing but it was disregarded by all call operators: I swapped the sim with my wife's phone and it didn't help.
To my limited understanding this made my phone hers in the eyes of the carrier.
So I felt that this eliminated the carrier as the fault, unless they have some file that says don't allow 4G voice on Pixel 2xl's.
The only other thing I can think of beyond some Google conspiracy to make me buy a new phone is the Qualcomm com chip 4G voice parts have quit.
So anyhow I throw myself at your feet and hope someone has some knowledge or experience to relate.
If I could afford a new phone I'd just dump it.
Thanks!
Does your wife use the same carrier as you? If yes, can you try a sim from a different carrier? Did your sim work in your wife's phone?
> To my limited understanding this made my phone hers in the eyes of the carrier.
Not quite. The carrier can still identify the phone by IMEI.
> unless they have some file that says don't allow 4G voice on Pixel 2xl's.
Actually, the carriers often have lists of models that they white- or blacklist for VoLTE. And the phone's firmware must contain the correct configuration for VoLTE on that specific carrier. But it's unusual that it stops after having worked.
> the Qualcomm com chip 4G voice parts have quit.
I don't think there's much hardware involved that isn't also used for other things. A hardware problem seems very unlikely.
runekock said:
Does your wife use the same carrier as you? If yes, can you try a sim from a different carrier? Did your sim work in your wife's phone?
> To my limited understanding this made my phone hers in the eyes of the carrier.
Not quite. The carrier can still identify the phone by IMEI.
> unless they have some file that says don't allow 4G voice on Pixel 2xl's.
Actually, the carriers often have lists of models that they white- or blacklist for VoLTE. And the phone's firmware must contain the correct configuration for VoLTE on that specific carrier. But it's unusual that it stops after having worked.
> the Qualcomm com chip 4G voice parts have quit.
I don't think there's much hardware involved that isn't also used for other things. A hardware problem seems very unlikely.
Click to expand...
Click to collapse
TF went over the IMEI several times and said it was cleared for 4GLTE.
The problem was solved by moving to Mint, not only do I again have VoLTE but the call clarity is incredible, I actually had to turn down the volume.
I filed with the FCC and started a chargeback with VISA against TF.
Thanks for your reply!
LEARNED: A temp try us Mint sim is a CHEAP diagnostic tool!
Related
I successfully flashed the CDMA Desire with a Sprint Radio off the Evo. It's baseband 2.15.00.09.01
I also installed PRL 60677 from sprint. I also tried the Cyanogen MOD.
It's currently running the alltel ROM so I can get access to the dialing codes in the PRL but even though I flashed the RADIO and the PRL it still shows the network as alltel and it won't let me get access in menu>settings>Wireless networks>mobile network
I can turn it on. But it either seems to take a long time to turn off, or go off by itself, not sure which. But once its on it is greyed out and won't let me get access to it.
I thought maybe it was the PRI, but I don't see how that could be. Is there some sort of Initial Program Loader from alltel doing this can someone tell me why it won't pick up on a sprint network that I have for cdma like connecting or sharing a connection etc... and won't get off U.S. Cellular network?
I might just try flashing to verizon and see what happens just to observe. It should be a lot easier than flashing to sprint.
edit: I did change all the dialing codes to sprint in the ## menu btw. I used the codes from another sprint Phone.
EDIT: It also won't turn off always when I hit Airplane mode and constantly says "Turning on...." and won't give access when to "Mobile Network" when you hold down the power button and that menu comes up.
I used the original Stock RUU to switch back. It changed the baseband and everything else back and also got rid of my clockwork recovery in the process
The only thing it didn't change is the PRL. I had to redownload that and manually rechange the codes in the ## secret dialing menu's.
As far as I understand I will need to change the esn or have this esn to sprint to be able to get it working on a sprint network. It is very difficult thing to do so I will have to postpone this. I'm thinking there might be some code or something in one of the abstraction layers or HAL layers that is preventing you from changing the esn somewhow... not really sure but that seems like the best place for me to look as it is the interface between the software and hardware. The hardware is there and able to do it, so it must be the most basic software or HAL that is preventing me from doing it I am guessing. BTW this is not illegal. I own my phone. If anything it's illegal for someone to sell me crap that doesn't work the way it should because of bogus programming that's been put on my phone to prevent me from using it! And nikola tesla invented the radio btw where is the money and credit he deserves for this?!
Hey man,
I am trying to do something like this for my wife. I'll let you know how it goes once I get the phone. In the meantime, maybe this might help you?
http://forum.xda-developers.com/showpost.php?p=4199684&postcount=5
I know it's not quite the same - taking VZW phone onto Sprint Network, but I thought it might help you out.
I'll post my experience later when I get the phone next week.
Thanks,
-Marcus
Eloquence said:
Hey man,
I am trying to do something like this for my wife. I'll let you know how it goes once I get the phone. In the meantime, maybe this might help you?
http://forum.xda-developers.com/showpost.php?p=4199684&postcount=5
I know it's not quite the same - taking VZW phone onto Sprint Network, but I thought it might help you out.
I'll post my experience later when I get the phone next week.
Thanks,
-Marcus
Click to expand...
Click to collapse
I don't think that's quite the same thing. I read through the post and a lot of it didn't make a whole lot of sense. Generally you have to have a compabible esn with the network you want to use. Every carrier has a database of all the esn's that are registered and available to use their service. If you try to connect to their service their software will recognize the esn as false and not grant service even if you install all the correct radio's/basebands, PRL files, Firmware, etc... it just won't work because you don't have an esn in their database so you have no authority to connect to their network. So you have to change the esn. But it's not such a simple thing to change an esn. I'm guessing its written in hexadecimal somewhere in the registry, but maybe not. There are certain command sets like the Haye's command set that only apply to CPU or other hardware like modem/Radio. There is an RIL which communicates between a driver, the modem/radio, and the OS. I'm guessing the esn is communicated and retrieved by the RIL layer that communicates via proxy & a driver or in one other PPP protocol that apparently only communicates with the network at certain times suspiciously. That's because the ESN is apparently located in the radio/modem and people have successfully changed their esn by changing their modem and installing a different one. A modem is essentially an ultra small electronic radio. In the same way that a radio picks up signals out of the air and converts to sound, a modem picks up signals also and can convert to sound as well as internet data, text messaging, etc...
If your radio doesn't have the proper command sets it can not pick up on certain signals such as for example sprint 1900 MHz for a sprint radio/baseband version vs a 900MHz signal for a 900 MHz Verizon. Each carriers software might be set up to block the other carriers signals in certain ways. For example each carrier has roaming agreements with the other carriers so that when you go out of your host carriers network say from Verizon into Sprint then you can "roam" and still get coverage. Sprint in this case provides the coverage and therefore they have an agreement to use each others network to provide better coverage. They may also pay each other small fees to use their network. Roaming, carrier type, cell number, mobile network operator, ip addresses, etc... can all be preprogrammed into CDMA handsets through ## secret dialing modes. This only works on CDMA handsets or in CDMA mode on your phone (i.e. not GSM). Usually on HTC devices you press ##775# to update a PRL file which is the Preferred Roaming List. That is usually easy enough, but this may not always update all your phones programming and you may have to do so manually through other ## dialing codes such as Primary HA secondary HA MCC (Mobile Country code) MNC (Mobile Network code) etc... Even if you do all that though it serves no purpose if the esn isn't registered to the network that you want to use. Generally only Cricket and MetroPCs in the USA will register a CDMA esn to use on their handsets. All the other carriers like Sprint, Att, Verizon, etc... generally won't do it, hence you can't get CDMA service from them if you have a CDMA capable handset even if you update all of your files as there is a program that is run on behalf of the carriers that manually checks your phones ESN/MEID/etc... to see if you have the "proper Credentials" or authorization to use their network. In this case the authorization is given on whether or not if your ESN is in their database and that it aslo can be in their database but blacklisted or grey listed in the case of you have an innactive account and need to pay them to get it "white Listed" or if you have a debt on your account or the phone is reported stolen it may be "black Listed". Usually you can flash to Cricket or MetropCs fairly easily though and they will even do it for you for a small fee.
Hey guys, just unwrapped my new N5x and popped in my sim card. Yet for some reason I can't make or receive any calls!
Calls to me go straight to voicemail, and when making an outgoing call it either immediately says call ended or after a while says network unavailable.
The strange thing is that the entire time I'm connected to LTE (full bars) and data works fine (I can use chrome), and I can even send and receive SMS!
It's been like this straight out of the box. I reset the network settings, then factory reset the device, then upgraded to 6.0.1, rinsed and repeated with no luck.
Probably related: I tried setting the phone from LTE preferred to 3G or 2G but it still says connected to LTE. Even did it manually from the *#*#4636#*#* and nothing changed.
I'm using HOT Mobile in Israel and the American version of the phone. All bands are here are supported.
Any thoughts on how to proceed?
Do US specifc models of phones normally work fine in Israel?
I know I had these symptoms when I managed to accidentally swap my UK model to use USA bands. Only potential difference is that I don't think SMS worked for me.
If someone more knowledgeable knows where the "Network settings reset" pulls values from and to, that might help.
Or which partition holds the data that makes a US phone a US version and an EU phone an EU version (assuming it isn't hardware), we could potentially flash stuff.
Yeah they do. I have a friend with a 5x and his phone is working fine. :/
Check your apn settings, re add them again to test.
Maybe your network do not support lte calls, try it on 3g. This was my solution even thought my network supported volte and worked on s6 but not on my 5x.
I see you tried the 3g option, my problem was another app causing the conflict between lte and 3g. Able to source for another spare sim to try?
I deleted the apn settings - no luck. tried 2 different service providers and same results with both
I havnt installed anything yet and wiped the phone to be sure. Could a stock app be causing the conflict? How can I check?
did you try having your friend put his sim in your phone and yours in his to see if it works?
Yep - he's on the same service provider that I am. Didn't work. Also tried a Sim card from a different service provider.
Here is a solution if you still need it http://forum.xda-developers.com/showpost.php?p=64023143&postcount=10
I recently purchased an HTC 10 US model from ebay, taking my chances given the low price tag. The phone is loaded with a Telcel OS version, though the seller advertised the phone as unlocked. Hardwarewise, everything has been working beautifully.
I just got an H2Owirelees SIM, activated, popped it in. Initially, when I tried to manually create an APN, it reported 'this user is not allowed to create APN profiles.'
The device later auto-updated with APN info sent from H2O. I can send and receive calls and text, but still no data connection. Under settings, Data is enabled but shows 'Disconnected.' No data connection at all, not 2g, 3g, 4g, nothing.
So I'm wondering if there is some sort of partial carrier lock, which is not allowing me to receive data connections. The phone's model no is 2ps6500, which should mean that I have the US version. I would initially get a system notification suggesting I purchase a data plan for my phone, which redirects me to Telcel's website, which is why I suspect some sort of carrier lock.
Any insights on this? I realize this is probably a situation which not many others are encountering, but hoping to resolve without needing to flash a different ROM.
*********UPDATE********** I bought a new sim from straight talk and VOLTE works now! (GSM compatible Straight Talk Sim card) My old sim was from 2014, so it wasn't VOLTE compatible.
I have an ebay zombie LG G710ULM flashed to latest Google Fi Android 9 software, I received an email from Straight Talk (Wal-Mart US cell phone service reseller) telling me that my LG G7 does not support VoLTE and my phone will be unable to receive calls in January 2021.
-Using a network info app, the app is telling me it is connected to T-Mobile towers (so I have a Straight Talk T-Mobile compatible SIM)
-I can't find any options to enable VoLTE in settings, and wifi calling is erroring out
I was wondering if there are ways to get VoLTE and Wifi Calling working (Straight Talk supports it, but not my current ROM/SIM).
I can switch to the following sims supported by Straight Talk.
-AT&T Compatible Sim
-Verizon Compatible Sim? If my phone supports CDMA bands
OTHERWISE MOST OF US WILL HAVE A PAPERWEIGHT IN 2021!!!!!!!!!
Same problem
I'm having the same problem. Any progress on this?
I'd like to know this too. Surprised there is no traffic here with all the knowledgeable people on this forum.
G710EAW here. BTW There was an Android 10 update just two hours ago from Android 9. Someone with an 'EM' phone in another thread said VOWifi is "working now" but how do others know if it's working when January 1st comes around?
Falkentyne said:
I'd like to know this too. Surprised there is no traffic here with all the knowledgeable people on this forum.
G710EAW here. BTW There was an Android 10 update just two hours ago from Android 9. Someone with an 'EM' phone in another thread said VOWifi is "working now" but how do others know if it's working when January 1st comes around?
Click to expand...
Click to collapse
If you guys have cross flashed roms, then volte will not work. It doesnt work for any of us who have crossflashed. Whichever model.
You need to be on original software. Looks like some licensing thing that volte requires. They need to provision volte for all the phones. Sounds like they are not interested to provision it for g7. Odd that even EAW model which has original firmware, they sent that mail too....
Sad/Odd to see your carriers are suddenly changing to only Volte.
Is there a way to put it back to original software? I actually don't need it crossflashed to anything because it's a Verizon originally and I would like to use it on that network. Or does it not work that way?
Turnhoo said:
Is there a way to put it back to original software? I actually don't need it crossflashed to anything because it's a Verizon originally and I would like to use it on that network. Or does it not work that way?
Click to expand...
Click to collapse
Main issue is that your carriers dont want to provision volte for your G7s. So no guarantee if cross flashing back to original will work.
There is crossflashing guide in guides section with which you can go back to stock firmware. Do this at your own risk.
In our country we have a volte carrier called Jio. They provide an app called jiocall. Using that app you could use their service even if your phone is not volte capable. You will have to see if there are such apps for your carrier. Thats the only non technical, simpler solution.
I have some information that might make all of you guys happy.
I was told by Safelink Wireless that VOTLE is a function of BOTH the phone *AND* the sim card.
Basically, if the phone itself is VOLTE compatible but the sim card is not, then the phone will be reported on their system as not compatible, and will ask you to upgrade your phone.
However if a VOLTE compatible SIM is inserted, if the phone does in fact support VOLTE, it will then work. That's because it's provisioned on the carrier via the sim card itself.
If you purchased a sim via the "Buy your own sim" package, e.g. online or from Best Buy, etc, awhile ago, then that sim is not compatible. You simply need to call Tracphone/Safelink and ask to buy a VOLTE compatible SIM (which costs 99 cents). Then when you get it, call their tech department to have them transfer the phone service and phone number to the new SIM.
You can dial the phone's service menu and go to the VOLTE/GPRI menu and if the options are there, then the phone supports it.
What's the correct service menu number for our phones?
Falkentyne said:
I have some information that might make all of you guys happy.
I was told by Safelink Wireless that VOTLE is a function of BOTH the phone *AND* the sim card.
Basically, if the phone itself is VOLTE compatible but the sim card is not, then the phone will be reported on their system as not compatible, and will ask you to upgrade your phone.
However if a VOLTE compatible SIM is inserted, if the phone does in fact support VOLTE, it will then work. That's because it's provisioned on the carrier via the sim card itself.
If you purchased a sim via the "Buy your own sim" package, e.g. online or from Best Buy, etc, awhile ago, then that sim is not compatible. You simply need to call Tracphone/Safelink and ask to buy a VOLTE compatible SIM (which costs 99 cents). Then when you get it, call their tech department to have them transfer the phone service and phone number to the new SIM.
You can dial the phone's service menu and go to the VOLTE/GPRI menu and if the options are there, then the phone supports it.
Click to expand...
Click to collapse
Update, I recently bought a new sim and I have VOLTE right now on ULM android 9 latest security fix LG G7 image, running on Straight Talk.
took a while to understand lgup but my 710 oulm had a type oreo that the guy said couldnt be but i crossed flashed it to 10 i dont see the rom anymore and i hope i put it on another drive it was a canadian rom for android 10 works great otherwise im looking to get volte active in the *#*#4636#*#* phone menu you can see "provision for the setting under the radio on off but its a grey area the buttons dont work could be good could be bad its definately part of 10 but ?? grey areas preferred network could be sketchy to play with the phone initially on transition had incredible link up speed now its giving me a pain because assume i played with the connection preferences tab and its a registration error like dum just use the assigned sim guys and stop trying to mac or identify with every device anyway its the registration of a telephone number robo heads
So, I was forced to switch from Sprint to T-Mobile. My phone is unlocked and has both CDMA and GSM. They put a new T-mobile SIM card in. They were able to get it to work on calls and text, but not data. The tech guy messed with it for quite a while. In the end, I temporarily switched to my old Moto X and it is working, so I have a T-mobile sim. The G7 has the same GSM bands as the Moto X so it should work.
I talked to an LG tech support specialist on the phone. He said that they cannot do anything due to proprietary software legalities, and that the phones are minorly different but there is no reason that it should not be working. He suggested that if it could be flashed to the T-Mobile software it would work, but of course they cannot do anything.
So what are the best options and method to get this phone to work on the T-Mobile network?
This is all in the US.
In_The_Way said:
So, I was forced to switch from Sprint to T-Mobile. My phone is unlocked and has both CDMA and GSM. They put a new T-mobile SIM card in. They were able to get it to work on calls and text, but not data. The tech guy messed with it for quite a while. In the end, I temporarily switched to my old Moto X and it is working, so I have a T-mobile sim. The G7 has the same GSM bands as the Moto X so it should work.
I talked to an LG tech support specialist on the phone. He said that they cannot do anything due to proprietary software legalities, and that the phones are minorly different but there is no reason that it should not be working. He suggested that if it could be flashed to the T-Mobile software it would work, but of course they cannot do anything.
So what are the best options and method to get this phone to work on the T-Mobile network?
This is all in the US.
Click to expand...
Click to collapse
It would have helped if you told us exactly what model your G7 is.
What band is it defaulting to? Is it band 4?
Did you try a factory reset?
Try band 2, 4 and 12 in the service menu. I forgot the code I think its *#*#546368#*#*
Also, after changing bands in the service menu, you must go to "Network mode" and choose "Auto" (calls will instantly disconnect if you don't).
Yes, it has been factory reset X 2.
Model # LG-G710PM
Build # PKQ1.181105.001
Software Version G710P21b
Android9
I tried to enter the service mode as you wrote it, but no go. Double checked the code, it says to use *#546368#* plus the last 3 numbers of the model # (in this case 710) and then #. still no go.
It is set on Auto.
In_The_Way said:
Yes, it has been factory reset X 2.
Model # LG-G710PM
Build # PKQ1.181105.001
Software Version G710P21b
Android9
I tried to enter the service mode as you wrote it, but no go. Double checked the code, it says to use *#546368#* plus the last 3 numbers of the model # (in this case 710) and then #. still no go.
It is set on Auto.
Click to expand...
Click to collapse
Sorry, yeah I can't remember the key combo if i'm not at the phone
So *#546368#*710# did NOT work?
I just tested it and it worked instantly on mine.
Does *#*#4636#*#* work?
Falkentyne said:
Sorry, yeah I can't remember the key combo if i'm not at the phone
So *#546368#*710# did NOT work?
I just tested it and it worked instantly on mine.
Does *#*#4636#*#* work?
Click to expand...
Click to collapse
I tried those codes, plus a few others i found online. None of them worked.
I did fine out that I am not the only one. It does not work for some other users with the G710PM. Does for others.
Question, can I just bypass all of this and flash my phone to one the the t-mobile versions?
In_The_Way said:
I tried those codes, plus a few others i found online. None of them worked.
I did fine out that I am not the only one. It does not work for some other users with the G710PM. Does for others.
Question, can I just bypass all of this and flash my phone to one the the t-mobile versions?
Click to expand...
Click to collapse
After more research it appears that if I flash to G710TM (the base T-Mobile ) it will brick. Is there any other version that would work and may improve reception?