Develop Bugs

Lg g4 h812 network and data problem

I own lg g4 h812 Canadian version
I bought it from canada and without using a Canadian sim brought it back to India. Here's the problem.
Indian sims like idea airtel vodafine or bsnl they work sometimes i can even make a call sometimes but i don't know how but the phone starts showing emergency calls only even when there is network. The data lte/3g/gprs doesn't work at all. Even the default apn doesn't appear.
So is this a hardware problem
If the sim was Locked then Indian sims should not work at all but i can make calls if i restart the phone.
Sent from my A0001 using XDA-Developers mobile app

LG H812 data and calling issue
bro it is all because of incompitable lte and wcdma bands. lg g4 canadian version has different bands that not works with indian service providers

jasi275 said:
I own lg g4 h812 Canadian version
I bought it from canada and without using a Canadian sim brought it back to India. Here's the problem.
Indian sims like idea airtel vodafine or bsnl they work sometimes i can even make a call sometimes but i don't know how but the phone starts showing emergency calls only even when there is network. The data lte/3g/gprs doesn't work at all. Even the default apn doesn't appear.
So is this a hardware problem
If the sim was Locked then Indian sims should not work at all but i can make calls if i restart the phone.
Sent from my A0001 using XDA-Developers mobile app
Click to expand...
Click to collapse
Access the hidden menu on your phone by entering the following on your phone keypad:
*#546368#*812#
then go to Field Test > Modem Settings > LTE Band Selection and select the bands appropriate to your network carrier to see if they're OK or they Fail. Then, still in Modem Settings, scroll down to Network Mode and do the same.
If no help there, your choices are to:
- In Settings > Mobile Data, click on the 3 dots on the right of the top menu bar and select Mobile Networks - Network Mode and select your preferred Network mode. Then below there go to Access point names and touch the 3 dots on the right of the top menu bar there and enter the New APN settings for the network carrier you're using now.
- if no success there, wipe your modemst1 and modemst2 and reboot - can solve some modem problems.
- if still nothing - flash an appropriate KDZ (good site for the H812 KDZ's - https://lg-firmwares.com/lg-h812-firmwares/ ) for your phone model (if your carrier there has VOLTE support for the LG G4, try a Rogers/Fido KDZ), with LGUP-NEW.

jasi275 said:
I own lg g4 h812 Canadian version
I bought it from canada and without using a Canadian sim brought it back to India. Here's the problem.
Indian sims like idea airtel vodafine or bsnl they work sometimes i can even make a call sometimes but i don't know how but the phone starts showing emergency calls only even when there is network. The data lte/3g/gprs doesn't work at all. Even the default apn doesn't appear.
So is this a hardware problem
If the sim was Locked then Indian sims should not work at all but i can make calls if i restart the phone.
Click to expand...
Click to collapse
Hey
Did u solved the problem!

aR_aNiK said:
Hey
Did u solved the problem!
Click to expand...
Click to collapse
Not yet I have not tried to kdz yet and the phone belongs to my cousin I will try flashing different kdz

jasi275 said:
Not yet I have not tried to kdz yet and the phone belongs to my cousin I will try flashing different kdz[/QUOTis that prb still happen.
I am going to exchange my current ohn with lg g4 can (h812) so i need to know
I live in kolkata
Click to expand...
Click to collapse

Use htc10 on jio india

Back up your phone as this will earse all data from your phone
Unlock bootloader (htcdev)
S-Off (sunshine)
Change CID to T-MOB010
Change MID to 2PS650000
download RUU_PERFUME_UL_N70_SENS80GP_MR_TMOUS_2.41.531.3.EXE (do not install the latest ruu for TMOUS)
Install the RUU
Under setting- call you will get VOLTE and WIFI calling option dissable and enable it once.
Under APN setting-
NAME - jio 4G
APN - jionet
APN protocol - IPv6/IPv4
APN roaming protocol -IPv6/IPv4
reboot phone
SMS Service Center (+9170200*****) got automatically , it is different for different area
test 4g , sms and call
once all above is working you can update phone by OTA to the latest software
PLEASE NOTE YOU ARE DOING THIS AT YOUR OWN RISK

Thank you very much for posting this, it worked.
The rom version you mentioned no longer available and it does work with lasted rom.
http://dl3.htc.com/application/RUU_PERFUME_UL_N70_SENSE80GP_MR_TMOUS_2.51.531.32.exe
If you run into issues while running the above ruu, download the FULL stock firmware version matching above TMUS rom from https://docs.google.com/spreadsheets/d/1EdAHLDDxqf9jH65me_8bY9oXdaYusI0eedpwO6yUY2s/PUBHTML
Flash the firmware in download mode and run the ruu exe.
And follow the instructions in 1st post.

ravjeet said:
Back up your phone as this will earse all data from your phone
Unlock bootloader (htcdev)
S-Off (sunshine)
Change CID to T-MOB010
Change MID to 2PS650000
download RUU_PERFUME_UL_N70_SENS80GP_MR_TMOUS_2.41.531.3.EXE (do not install the latest ruu for TMOUS)
Install the RUU
Under setting- call you will get VOLTE and WIFI calling option dissable and enable it once.
Under APN setting-
NAME - jio 4G
APN - jionet
APN protocol - IPv6/IPv4
APN roaming protocol -IPv6/IPv4
reboot phone
SMS Service Center (+9170200*****) got automatically , it is different for different area
test 4g , sms and call
once all above is working you can update phone by OTA to the latest software
PLEASE NOTE YOU ARE DOING THIS AT YOUR OWN RISK
Click to expand...
Click to collapse
What happens if u use us unlocked firmware??

Please help.
I have a HTC 10 purchased from Riyadh,Saudia Arabia.
As HTC INDIA said that they have unlocked Volte feature for Jio users on HTC 10
I updated my 10 to Android Oreo but
I still have to use Jio-4gvoice application for Calling and SMS still after
updating to Android Oreo.
I don't got Volte feature.
Please help how should I get it officially whenever I check for updates it says your phone is upto date.
Brother what should I have do.

i have htc 10 and jio volte work fine in my htc. However, Airtel Volte is not working on this device, any advice how it can work?

Question Volte suddenly stopped working

Hello, Volte used to work well on my op9 pro recently updated to A12, I tied switching my sim card from sim 1 to sim 2 as I read some users were able to connect to 5g that way, well, it didn't work and when I switched my sim back, volte stopped working, tried restarting the phone a couple of times, no luck. Any ideas ?
Also, even before switching to A11 5g never worked and still doesn't work on my 9Pro in the UAE, tried all possible solutions and it still doesn't work, any possible solutions?

Can you try to reset your APNs and/or the whole networking? (Beware: by resetting the network you'll loose your saved WiFi configurations.)

MaUop3 said:
Can you try to reset your APNs and/or the whole networking? (Beware: by resetting the network you'll loose your saved WiFi configurations.)
Click to expand...
Click to collapse
I just tried that, didn't work unfortunately, no volte or 5g, I only get 4g+ and my sim supports 5g on other devices :/ I can live with 4g, but I need volte to work

Mardds said:
I just tried that, didn't work unfortunately, no volte or 5g, I only get 4g+ and my sim supports 5g on other devices :/ I can live with 4g, but I need volte to work
Click to expand...
Click to collapse
I was getting the same issue, but flashing a different variant of your current c.44 should do the trick.
Ex: I have a LE2127 (TMO), I converted with a11 to use LE2123(EU) software updates. When android 12 hit my phone wouldn't give me data on the 2123 update, so I had to download the LE2125(global/NA) update and flash using the the system update app that was so generously given in the following post:
Post in thread '[TMO] 9 PRO MODEM RETENTION' https://forum.xda-developers.com/t/tmo-9-pro-modem-retention.4292445/post-86328243
I don't know what software or model your phone is now, so I am NOT suggesting you switch if you are not already on 2123 or 2125. Those two are interchangeable without problem so it should be fine

Question How to enable voWifi?

Hello, let me start out by saying I've read a few links about downloading logkit and trying other ways, along with the way for 8pro, however none seem to work.
I bought a used unlocked phone and updated it and found out there is not voWifi, only voLTE.
It is gobal with Android 12, with Verizon sim.
When trying to install the logkit I get the attached error. I get the same error for the other apk as well. What do I have to do here?

Anyone? Ttt

I too have noticed that after updating to android 12, my VoWIFI no longer works, despite being turned on in the settings (and choosing prefer VoWIFI) . it's very frustrating

I've never had VoWifi with a OnePlus device except when I had T-Mobile

Question 5g not working

Convert your T-Mobile (LE2127) to EU via MSM, No unlock.bin needed!
*** Use this at your very own risk. *** You will lose all data *** Backup your working modemst1/2 and persist. If you lose these for any reason, it's unique to your device and not recoverable if you didn't back up (via MSM or other people). ***...
forum.xda-developers.com
As mentioned in this website, I followed all the steps and converted my Op9 pro tmobile to EU. I was on OOS12 so I did unlock by b-loader using unlock.bin.
After I successfully converted to OOS11 EU, I did a full update directly to OOS13(EU). The sim network shows up and I can make a call / receive it. The only problem is the mobile data is not working. It shows E or 4g sometimes for couple of seconds and then it stops. Even the network coverage is lower(only 1 or 2 sticks) than before. The 5g is not working at all also I have selected the mobile network on 3g/4g/5g as I did before. (There is no 5g signal and other signals are weak.) Help me

Aone_Stha said:
Convert your T-Mobile (LE2127) to EU via MSM, No unlock.bin needed!
*** Use this at your very own risk. *** You will lose all data *** Backup your working modemst1/2 and persist. If you lose these for any reason, it's unique to your device and not recoverable if you didn't back up (via MSM or other people). ***...
forum.xda-developers.com
As mentioned in this website, I followed all the steps and converted my Op9 pro tmobile to EU. I was on OOS12 so I did unlock by b-loader using unlock.bin.
After I successfully converted to OOS11 EU, I did a full update directly to OOS13(EU). The sim network shows up and I can make a call / receive it. The only problem is the mobile data is not working. It shows E or 4g sometimes for couple of seconds and then it stops. Even the network coverage is lower(only 1 or 2 sticks) than before. The 5g is not working at all also I have selected the mobile network on 3g/4g/5g as I did before. (There is no 5g signal and other signals are weak.) Help me
Click to expand...
Click to collapse
Firstly, what version are you on now? Exactly which one. Some users are reporting later builds of oos13 EU aren't working with network data and they have rolled over to Global instead. If you're on the latest ota, it seems to be happening there.
Secondly, are you able to find Volte in the settings? Turn it on then off, then on again and leave it on. I suggested this fix for someone else but they said they could not even access the volte setting anymore. This worked for me when I was having trouble staying on (oos11 Tmo->oos11 EU->oos11 Tmo->oos11 EU again (this is where it started, the first flashes were fine)). In some remote areas I would get on LTE but anywhere in the city, I was stuck on Edge and constant looping of it trying to get to lte/5g. Until I toggled volte on/off/on and left it on