LG G8 Volte Fix.

[armodons]

I don't know much about LG. In fact this is my first ever LG smartphone. I am not familiar with flashing or rooting LG phones. Above link you shared for bootloader unlocking, firehose EFL file is for Sprint. Will it work for me too? I have unlocked version LM-G820QM8 AMAZON Alexa variant.

Yes it will work. I'm surprised there's a carrier that the supposedly open Amazon variant doesn't work with.


First, you should get LGUP setup and and download the KDZ for your phone. Make sure you know how to put your phone into download mode and then restore everything back to stock with the LGUP tool. Get this fallback setup and working first before you do anything so if you're ever stuck in a bootloop you can always go back to stock. Search the web for this.

Next, follow the thread for the firehose method for bootloader unlock and magisk root.

Then, follow the readme in that twrpG8.zip linked earlier. Backup everything in TWRP.

Lastly, setup your phone with the correct working APNs. Now you can copy the files I linked earlier. VoLTE and Wifi Calling should now work.

 

[doctorman]

Has anyone tried this with the LG G8X model? any variety of G8X..

Looking for a good LG phone for Hello Mobile that runs on Tmobile NVMO network.
Like the G8 but wanted the bigger display and battery of the g8X or v50 but neither has Tmobile variety

 

[Dusty46]

Yes it will work. I'm surprised there's a carrier that the supposedly open Amazon variant doesn't work with.


First, you should get LGUP setup and and download the KDZ for your phone. Make sure you know how to put your phone into download mode and then restore everything back to stock with the LGUP tool. Get this fallback setup and working first before you do anything so if you're ever stuck in a bootloop you can always go back to stock. Search the web for this.

Next, follow the thread for the firehose method for bootloader unlock and magisk root.

Then, follow the readme in that twrpG8.zip linked earlier. Backup everything in TWRP.

Lastly, setup your phone with the correct working APNs. Now you can copy the files I linked earlier. VoLTE and Wifi Calling should now work.

all carriers does work with open Amazon. only problem is non of them get VoLTE.

thank you for all the instructions. I will let you know whether I succeed or hang up at any point.

 

[Dusty46]

Yes it will work. I'm surprised there's a carrier that the supposedly open Amazon variant doesn't work with.


First, you should get LGUP setup and and download the KDZ for your phone. Make sure you know how to put your phone into download mode and then restore everything back to stock with the LGUP tool. Get this fallback setup and working first before you do anything so if you're ever stuck in a bootloop you can always go back to stock. Search the web for this.

Next, follow the thread for the firehose method for bootloader unlock and magisk root.

Then, follow the readme in that twrpG8.zip linked earlier. Backup everything in TWRP.

Lastly, setup your phone with the correct working APNs. Now you can copy the files I linked earlier. VoLTE and Wifi Calling should now work.

I followed your instructions. back up my product/OP and then replaced with what you provided and set the permissions as 644 and 755. still no luck with Volte or Wifi Calling. Is it possible that the model I am using dose not have VoLTE feature at all ! I reached LG Customer support and they said that this model doesn't have VoLTE.

 

[armodons]

Sounds like your Amazon variant might be missing more fundamental files...I don't know enough to know which ones are needed for VoLTE on top of what I've in the previous attached ZIP

At this point I think your only options are either try replacing files from the US Open partitions in hopes of finding the right ones or try to crossflash like the whole OP partition from that US Open kdz

I can try to upload the US Open partitions I've extracted if you want to poke around in the files or you can extract it yourself

 

[Dusty46]

Sounds like your Amazon variant might be missing more fundamental files...I don't know enough to know which ones are needed for VoLTE on top of what I've in the previous attached ZIP

At this point I think your only options are either try replacing files from the US Open partitions in hopes of finding the right ones or try to crossflash like the whole OP partition from that US Open kdz

I can try to upload the US Open partitions I've extracted if you want to poke around in the files or you can extract it yourself

Yes please do upload files from US Open.

 

[armodons]

Yes please do upload files from US Open.

Please see here for an archive of the OP, System, Vendor, and Product partitions from
G820QM20f_00_NAO_US_OP_0402.kdz

Let me know when you've downloaded the file. After extracting you can use 7-zip to explore the images to see what's inside.

 

[GnatGoSplat]

Will this get T-Mobile VoLTE on a Sprint unlocked G8X?

 

[deng072572]

So to use this, you will need to be bootloader unlocked, magisk perma rooted, and twrp installed, DM Verity Disabled this is a must!!(its always good to make a nandroid before making any changes on your phone). What this will do is more or less provision your Lg G8 to your Desired Carrier, it will also let you change your apns, so you have volte working and also the data indicator will change to match the carrier. WIfi calling i have not been able to get working, i personally do not use it. .

*Copy the files manually, it seems flashing them directly is causing unforeseen issues*



Download

Sprint
People cant have nice things =/. look for me on the blue old app


T-Mobile
People cant have nice things =/. look for me on the blue old app



Credits:
j4nn for the amazing temp root that allows us to do this
vl48 for BL unlock this guy is so awesome
inherent for finding j4nn and getting temp root rolling
Mr. zhu for bringing us TWRP.

Are these files for TWRP?

 

[dahveedsolorzano]

Thanks for pointing me in the right direction! I now have VoLTE and Wifi Calling working on my LMG820QM (on T-mobile).

I have the BPT variant of the LMG820QM, for which VoLTE and Wifi Calling does not work. After bootloader unlocking and rooting, I tried the above VolteFix-v1 but wanted Wifi Calling. Forcing the option to appear via a profile in Universal Enabler in the hidden menu* did not work and instead caused LG IMS to continuously crash.

*For those interested in the hidden menu, first create an empty folder named "enable_ue" in internal storage. Then go to the dialer and type *#546368#*820#. In Field Test > Universal Enabler you can "Create New Config" and manually enable VoLTE, ViLTE, VoWIFI, and ViWIFI. However, even though these options became enabled in *#*#4636#*#* they didn't seem to actually work.

Next, I tried to crossflash partitions from the US Open kdz but was unable to due to a size mismatch of the OP partition (among other problems).

Finally, since I had already extracted the OP partition from the US Open kdz (G820QM20f_00_NAO_US_OP_0402.kdz), I extracted files that looked relevant and copied them over using a root browser into /product/OP. After setting permissions and restarting, I now have working VoLTE and Wifi Calling!

The files are cust.prop [update: apparently not needed; my existing one worked just fine], all the files in config, and a few folders in priv-app [update: these are the apps for Wifi Calling!] not present in my phone's kdz (not sure which ones if any of these apks are actually needed but since it works I'm not going to experiment more). See attached for details.

Note: Since these files are from the US Open kdz, it will likely only work for US carriers. But the process can be repeated for other regions with the right kdz.

UPDATE: Replaced the attachment, had the wrong files in Config.

** Noticed that upon factory resetting the wrong default APNs are inserted. Had to factory reset on original files, have APNs setup correctly, then copy the attached files (did not copy over cust.prop this time and still worked).

Thank you for providing the link to the necessary files to enable both VoLTE and VoWIFI. I was able to get both working on my G8X Canadian variant by adding the files in the priv-app folder with the correct permissions then deleting cust.prop and config folder in product/OP and lastly adding the cust.prop and config folder you provided with the correct permissons. I appreciate all the hard work.

 

[dahveedsolorzano]

Has anyone tried this with the LG G8X model? any variety of G8X..

Looking for a good LG phone for Hello Mobile that runs on Tmobile NVMO network.
Like the G8 but wanted the bigger display and battery of the g8X or v50 but neither has Tmobile variety

It does work. Refer to post #33 and my post #50. I was only able to get VoLTE with the instructions in post #1.

 

[philngai]

This one should work, remember to make backups before flashing this.

Thank you for providing the twrp file but it's not an img which I would flash with fastboot, it seems. Could you tell me how to use your twrp file?

 

[LadywithaHook]

I am completely new to all of this, and need help to get volte turned on. I have an unlocked tmobile lg g8 thinq phone, and it does not have the option to toggle on volte

 

[AtrixHDMan]

I have a unlocked Verizon LG G8 thinq and I'm not seeing VOLTE only HSPA on AT&T network.Anyway to get VOLTE.

 

[AtrixHDMan]

my network is gonna require volte and it is no where to be found. i have a verizon unlocked lg g8. is it possible to unlock that one with a fix to get volte to work?

Did you get it to work?I would like to know how.Same device Verizon LG G8 thinq,but on AT&T.

 

[cminion718]

Did you get it to work?I would like to know how.Same device Verizon LG G8 thinq,but on AT&T.

Yes i did get it to work. Mine was through a provider that uses trackphone and they offered sim cards you could buy for at&t, version, and sprint. I bought the verizon one and its been working fine since.

 

[AtrixHDMan]

Yes i did get it to work. Mine was through a provider that uses trackphone and they offered sim cards you could buy for at&t, version, and sprint. I bought the verizon one and its been working fine since.

Sounds like the phone will only do voice over LTE only with Verizon service/towers.
So is that all you did was just swap the phone sim card.

 

[cminion718]

Sounds like the phone will only do voice over LTE only with Verizon service/towers.
So is that all you did was just swap the phone sim card.

if you use tracphone then maybe them or whatever provider you go t hrough will have cards from each vender for their service. that is all i found they sold one for each service from verison, at&T , tmobile i think or sprint i can not remember.

 

[AtrixHDMan]

if you use tracphone then maybe them or whatever provider you go t hrough will have cards from each vender for their service. that is all i found they sold one for each service from verison, at&T , tmobile i think or sprint i can not remember.

Tracphone uses Verizon towers. So you didn't I'm about to bootloader and root and then use the fix from here

 

[dahveedsolorzano]

Check post 33 those are the files you need for VoLTE to work on version 20 pulled from G8 KDZ.