Database Users

LTE dropping for H+ constantly

Like the title says...
I have a LG G2 D800 (at&t flavor) unlocked that i use on my local carrier. All bands are the same just so you are aware so I know i don't the wrong radio in my phone.
WIth that being said....my phone locks onto LTE and works great while web searching or something, but after a few minutes it drops the LTE for H+ and erks my gerkin!
it's getting so annoying, this may be a reason my G2 finds itself on the selling floor.....any ideas why? or how i can make LTE the preferred connection and not H+/..
better yet, any one else having this issue? if so, what have you done?
For testing purposes, i play ingress and my phone will have a solid LTE signal, after i launch ingress it drops the LTE for H+ within 2 minutes and stays on H+......getting very frustrating!

It's not an issue. When companies approve the software, they also have a say in how it accesses the network. LTE is fully deployed, however they prefer you to use LTE and things when occasionally syncing, etc. When you browse the phone then picks up LTE as programmed while loading. Once connected it then drops back to HSPA as it's the "primary".
If you want to change to "LTE ONLY" you can do so by opening your dialer and typing *#*#4636#*#* then click "Phone Information" Scroll down to where you see Network and inside you should see "GSM/WCDMA/LTE" ...Click that and scroll up to LTE ONLY.
Be warned that you can't talk on LTE yet so you won't be able to use voice. VOLTE (Voice Over LTE) is only on Verizon and not even they have fully deployed it. Just choose "WCDMA/LTE" and you should see it using LTE more.
Hope that helps you out. Try to understand the tech before you get frustrated and talk abut selling it brother

Freshly_Snipes said:
It's not an issue. When companies approve the software, they also have a say in how it accesses the network. LTE is fully deployed, however they prefer you to use LTE and things when occasionally syncing, etc. When you browse the phone then picks up LTE as programmed while loading. Once connected it then drops back to HSPA as it's the "primary".
If you want to change to "LTE ONLY" you can do so by opening your dialer and typing *#*#4636#*#* then click "Phone Information" Scroll down to where you see Network and inside you should see "GSM/WCDMA/LTE" ...Click that and scroll up to LTE ONLY.
Be warned that you can't talk on LTE yet so you won't be able to use voice. VOLTE (Voice Over LTE) is only on Verizon and not even they have fully deployed it. Just choose "WCDMA/LTE" and you should see it using LTE more.
Hope that helps you out. Try to understand the tech before you get frustrated and talk abut selling it brother
Click to expand...
Click to collapse
thank you so much....i can't find those option in that menu though...i looked everywhere for that code and couldn't find it specifically for the LG G2 and just about gave up...didn't know they did that on purpose...thanks..not so angry now....gonna look through these menus some more
*********i don't have the network button...only "turn off radio" "SMS over IMS" and "turn on LTE ram dump"***** i would love to have LTE/WCDMA only...

Is there a way to enable voLTE through hidden menu?

I have SM-N910U model of the note 4 and would like to know how I can enable voLTE. I know my phone supports it, but I can't find it anywhere in the settings nor is it active. My carrier has voLTE, but the phone data drops to 2g when I make calls. I would like to know a way to enable voLTE, so the data stays at 4g while on the call.

Or is there a way to add volte to international roms seems like it is only for carrier branded phones

I have the same problem with Galaxy Alpha on the Metro/ Tmobile Network.
LTE drops to 3 G on calls and often kills Data
during and even a minute or so after the call.
Not good for multitasking- this is a Factory Unlocked Alpha NOT a native Tmo / Metro phone .
The 4G LTE Tmo/ Metro Phones always have simultaneous voice and data so you can be on Web while on a call.
I think some have VoLTE and some have dual band simultaneously in the firmware specifically for Tmo.

robertkoa said:
I have the same problem with Galaxy Alpha on the Metro/ Tmobile Network.
LTE drops to 3 G on calls and often kills Data
during and even a minute or so after the call.
Not good for multitasking- this is a Factory Unlocked Alpha NOT a native Tmo / Metro phone .
The 4G LTE Tmo/ Metro Phones always have simultaneous voice and data so you can be on Web while on a call.
I think some have VoLTE and some have dual band simultaneously in the firmware specifically for Tmo.
Click to expand...
Click to collapse
Yes you are correct. VoLTE service can be enabled only with layer 1 modified kernel/drivers. The hardware itself definitely supports it, but firmware doesn't. Main reason the Samsung decided to disable this feature is because not all carriers in the world use voLTE service and enabling the service on the user end may trigger unstable and disconnection during call. I have contacted Samsung by Twitter and have yet to receive a response if they are going to enable this feature or not. Will let you know if I hear anything back from them!

Thanks. I wonder if some Dev here can do it for $ 100 .
Really like the size, speed and great Audio quality of Alpha and was going to get the larger Battery but I often can not get back on Internet for a few minutes after a call-
while the Phone says 3G (?) then it goes back to LTE and back to Internet...frustrating .
Am used to Metro PCS VoLTE since 2012 and had not considered this problem with a Factory Unlocked non Carrier Device.
No one reminded me there would be no VoLTE and sometimes no voice and Data simultaneously...
So DEVs figure it out for me and I will have a Tech here do the Install/ Download.
Alternative will be a too big branded S6 either Tmo or Metro which will have a better Camera, even slightly better than Note 4 but I love the small form factor of Alpha- this is Alpha 850 M.
Don't think Samsung will help although there is rumored to be VoLTE with Lollipop so there's a possibility.
Will Lollipop VoLTE perform like a Branded Metro PCS with LTE remaining on Display during calls and simultaneous Internet ?
Anyone have a Beta Lollipop for Alpha that achieves this ?
Thanks.

VoLTE on T-Mobile USA

One of my friends came from overseas a few months ago with VoLTE working on Tmobile US. At least I thought it was.
I did not think much of it at the time, but now that I have my own Z5, and can't get it to work, I'm curious.
Is there any special APN settings needed for VoLTE on TmoUS?
WHen i received my Z5, I noticed there was not any option for VoLTE. I went ahead and flashed the a singapore rom and it is here now but still cannot get it to work. I will try different settings and update.
I am also going to go through a few more roms to see if they work out of the box with it.
WIll it not ever work unlesss TmoUS certifies this device specifically? I don't think that is the case.

It's carrrier dependant

VoLTE uses the SIP protocol for communication. Aside of the implementation of the handling of such calls you would need the necessary data for registering at the server including the server's address, username and password.

I bought my international version from Amazon and turns out it is a Taiwanese version.
I can turn volte on or off but I can't tell it is working or not cause I don't know how to test it.

Testing it is pretty straightforward. Make sure you're on a 4G (LTE) network and place a phone call. Watch to see if you're signal changes to something other than where it started.
My experience is that I have 4G (LTE) in fewer places than 3G, as 4G seems to be less awesome at penetrating thick buildings. So, I don't see what the advantage/concern of VoLTE working or not is. But, I'm happy to learn.

Yakkosmurf said:
Testing it is pretty straightforward. Make sure you're on a 4G (LTE) network and place a phone call. Watch to see if you're signal changes to something other than where it started.
My experience is that I have 4G (LTE) in fewer places than 3G, as 4G seems to be less awesome at penetrating thick buildings. So, I don't see what the advantage/concern of VoLTE working or not is. But, I'm happy to learn.
Click to expand...
Click to collapse
When I make a call, the icon switch from 4G into 3G and H+ (back and forth between the two).
Does it mean no VoLte?

misbehave said:
When I make a call, the icon switch from 4G into 3G and H+ (back and forth between the two).
Does it mean no VoLte?
Click to expand...
Click to collapse
I have the same question too.

That's my understanding of the problem. With my AT&T iPhone, it stays reading LTE when I place calls.

If you see switching from LTE to another network upon dialing or receiving a call and going back to LTE once hung up it's a very strong indication that VoLTE does not work.

andiling said:
If you see switching from LTE to another network upon dialing or receiving a call and going back to LTE once hung up it's a very strong indication that VoLTE does not work.
Click to expand...
Click to collapse
THat is correct. My phone switches from 4G to H+ when on a phone call...
After many hours with t-mobile, and also at work, i was informed that t-mobiles VoLTE is proprietary and only tmoUS branded devices are usually the ones to get VoLTE to work with them.
Maybe in the future that will change, they said. oh well.

Until now every provider's solution is proprietary as the 3gpp standard is not finalized yet. So we need to be patient...

Universal VoLTE hack/patch for (MTK) Marshmallow devices?

Hi there!
I have a Zopo Speed 8 phone and it has occasionally started to act like this:
I try to call someone and the phone tries to change 4G/LTE network to 3G network. Suddenly the network will be dropped during the transition and the phone call stops. It doesn't happen each'n'every time but nevertheless it's annoying.
I asked the manufacturer whether their phone would support VoLTE. They told me they're sorry but the phone doesn't support VoLTE.
I've seen the patches which can be flashed to Xiaomi etc. devices to enable VoLTE. Therefore I'd like to ask whether there'd be any universal patch for Mediatek Marshmallow devices which would enable VoLTE? Thus my phone calls wouldn't be interrupted because the phone lost its network during the transition from 4G to 3G.
Thanks a lot in advance.

VoLTE Telstra Australia

Just wondering whether anyone has managed to get VoLTE working with the Axon 7 on Telstra in Australia. Stock or LOS Rom? Cheers

SD820 SoC supports it but seeing that Australia is still so minutes and data sepparated with calls, maybe not really wise to use it here yet. There's no selections to enable/disable VoLTE in settings in stock ROM. Might be able to access hidden system settings in an engineering mode through the dialler though.
I have my personal Aldi SIM (runs off Telstra network) and work Telstra SIM in my Axon 7 but decided to leave VoLTE as a curiosity for now. Both SIMs show as 4G+ in statusbar. I suspect that means carrier aggregation.

RobboW said:
SD820 SoC supports it but seeing that Australia is still so minutes and data sepparated with calls, maybe not really wise to use it here yet. There's no selections to enable/disable VoLTE in settings in stock ROM. Might be able to access hidden system settings in an engineering mode through the dialler though.
I have my personal Aldi SIM (runs off Telstra network) and work Telstra SIM in my Axon 7 but decided to leave VoLTE as a curiosity for now. Both SIMs show as 4G+ in statusbar. I suspect that means carrier aggregation.
Click to expand...
Click to collapse
4G+ is just faster than 4G, but many people report that they need to be very close to a cell tower to receive it.
That's literally everything I know lol

RobboW said:
SD820 SoC supports it but seeing that Australia is still so minutes and data sepparated with calls, maybe not really wise to use it here yet. There's no selections to enable/disable VoLTE in settings in stock ROM. Might be able to access hidden system settings in an engineering mode through the dialler though.
I have my personal Aldi SIM (runs off Telstra network) and work Telstra SIM in my Axon 7 but decided to leave VoLTE as a curiosity for now. Both SIMs show as 4G+ in statusbar. I suspect that means carrier aggregation.
Click to expand...
Click to collapse
There is an option in settings to enable or disable it on stock ROM ,or is this different?
And Axon7 doesn't have 2CA or more so it can't aggregate 2 bands together, although it shows 4g+.

RobboW said:
SD820 SoC supports it but seeing that Australia is still so minutes and data sepparated with calls, maybe not really wise to use it here yet. There's no selections to enable/disable VoLTE in settings in stock ROM. Might be able to access hidden system settings in an engineering mode through the dialler though.
I have my personal Aldi SIM (runs off Telstra network) and work Telstra SIM in my Axon 7 but decided to leave VoLTE as a curiosity for now. Both SIMs show as 4G+ in statusbar. I suspect that means carrier aggregation.
Click to expand...
Click to collapse
Yea I really want the VoWifi feature, due to being in a bit of a blackspot for reception, which can't happen until VoLTE is working. I don't have the option in settings, and I've tried enabling it through the engineering menu but it doesn't stick. I believe they (Telstra) may have it limited to certain devices with specific compatible firmware at this stage.

Aj-jss said:
There is an option in settings to enable or disable it on stock ROM ,or is this different?
And Axon7 doesn't have 2CA or more so it can't aggregate 2 bands together, although it shows 4g+.
Click to expand...
Click to collapse
Thats exactly the menu option I don't have. Are you using A2017G on Telstra?

sirizak said:
Thats exactly the menu option I don't have. Are you using A2017G on Telstra?
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Click to collapse
No I'm using a different carrier and that option is in the settings and I've got A2017.
Also I could never use VoLTE , because my provider has enabled for certain devices.
But I see in Network Cell Info app that it says this device doesn't have VoLTE capability.

The option doesn't exist in my ROM. Australian ROM and assuming the option is missing for good reason.

RobboW said:
The option doesn't exist in my ROM. Australian ROM and assuming the option is missing for good reason.
Click to expand...
Click to collapse
Is that the Nougat B04 firmware? I think the first version for A2017G to have VoLTE at all is the new German B08 firmware.

Yes, B04, waiting to see if ZTE give us Oreo but not expecting it now. Looks like they may not do an Axon 8, releasing fads like the foldable phone instead. This may be the first and only ZTE I ever own.
---------- Post added at 09:56 PM ---------- Previous post was at 09:26 PM ----------
Choose an username... said:
4G+ is just faster than 4G, but many people report that they need to be very close to a cell tower to receive it.
That's literally everything I know lol
Click to expand...
Click to collapse
I'm at Jenolan Caves right now for my wedding anniversary. All we get is 3G here so VoLTE would be useless. I'm not modding anything to enable it as I think it would actually compromise my phone's performance in Australia because I do turn off cellular data and rely on wifi frequently, like at work or home.
I'm not convinced the Axon 7 doesn't have VoLTE, I think it's just not enabled by the software.
I was sure I had seen something about 4G+ and here is copy paste from it.
"LTE-A/4G+ is actually an amalgamation of several different technologies. The biggest of these is called “carrier aggregation.” It’s kind of a misnomer, as it has nothing to do with aggregating wireless carriers. What it does, in a very simplified form, is allow your device to send and receive data from two different frequencies (known as bands) at the same time, which translates to faster speeds."
I also entered a sort of engineer mode through the dialler and screenshot it with it scrolled a bit to hide my IMEI. The phone shows VoLTE amongst other things and mentions not provisioned so seems to me software switch and carrier support but the phone would do it if the carrier allowed.

@ sirizak, I am sorry that there is no FM for A2017G in your country.