Flashed H815 marshmallow EU to H815 twn, but no mobile data - G4 Q&A, Help & Troubleshooting

So as the title said, I flashed the Marshmallow update on my H815 twn, but its from EU. It would seem that I am not able to connect to mobile data, but in the network settings, when I check, it's on HSPA or LTE at times. Could this be from the being that I used an EU firmware? Or is it carrier related?

Are your APN all right?
Sent from my LG-H815 using Tapatalk

Where did you get the kdz file?

yeah, other sim cards seem to work, but mine does not. Is it perhaps the sim itself that has the problem?

I got the KDZ file from xda. Just search for "android 6.0 H815"

sooo firmware region does not affect mobile data connectivity right? I mean, the bands are something related to the hardware, right?

Related

H815 can't make / receive calls but sms / data works great?

It's a UK vodafone G4 which I got unlocked and was using my O2 sim without issues. I ported the O2 number to iD Mobile (three network) and can use SMS as well as mobile data but calling doesn't work at all.
I put a Three sim in and it's exactly the same issue. The iD sim works fine in other phones. Other sim cards work fine in the G4. It's just iD and Three sims that won't make or receive calls.
I since used LGUP to install a kdz file (V20c-234-15) in the hope anything vodafone will be removed but that didn't make any difference. In the phone Settings if I check Network Status it shows the iD connections, in Status it shows Unknown Phone Number, in Network Mode it displays 2G/3G/4G, APN shows all correct iD settings. If I search for Available Networks it displays all the usual UK networks and only lets me select iD network.
Customer service said wait a few more days after porting and suggested a faulty sim (yet works in other phones) but after both iD and Three sims showing the same issue I've not much hope in their suggestions.
I know others that bought the vodafone G4 and unlocked it for Three haven't had any issues. I only found 1 other post online that has the exact same issue as me but their post hasn't updated since last month.
I don't know what to try. Other sims work, just not iD/Three. Any ideas for me to try?
I've since tried another kdz file for lollipop as I know for sure the sim worked before the number was ported before the phone was upgraded to MM.
Still doesn't work for calls, only data and SMS.
Can anyone offer more suggestions to try?
Sent from my SM-T520 using Tapatalk
djnield said:
I've since tried another kdz file for lollipop as I know for sure the sim worked before the number was ported before the phone was upgraded to MM.
Still doesn't work for calls, only data and SMS.
Can anyone offer more suggestions to try?
Sent from my SM-T520 using Tapatalk
Click to expand...
Click to collapse
This is a weird problem maybe your problem is modem or wrong kdz file. Downlaod right file and flash again and be sure that you click refrush that is makes wipe in LGUP.(I use LGUP)
cashflow67 said:
This is a weird problem maybe your problem is modem or wrong kdz file. Downlaod right file and flash again and be sure that you click refrush that is makes wipe in LGUP.(I use LGUP)
Click to expand...
Click to collapse
Thanks,
I had this problem with stock rom too though. I only started trying more kdz files in the hope that might work. Issue started the moment my number ported from O2 to iD Mobile.
Wierdly the phone doesn't like Three network sims either now and those worked fine before the number port happened.
Am really confused
Sent from my SM-T520 using Tapatalk

LG G4 H815 Emergency calls only after Marshmallow update

Hi
After the Marshmallow update cellular network isn't working anymore. I've tried different KDZ images, but with most of them I don't even get signal bars.
Only with the 20f version I got the signal bars back. But still only emergency calls.
Also tried the Android 5.1 KDZ, but no luck... Tested it with 2 different sim cards (different providers).
The simcard it self is recognized (the phone ask for my pincode)
I'm out of ideas..
Did you find any solution?
No, the hard lock was triggerd because of a bug in the update. I had to send it to LG repairs.
Maybe a kernel issue check whether u have stock kernal or a custom kernal or do u get full signal 4g on lollipop ?
Sent from my LG-H815 using XDA-Developers mobile app
same problem's here, on 5.1 no problems on signal but now emergency call only
but the phone still can search a network but cannot locked a network
wifi still function
same problem here. Anyone with solution............
A

Vs985 Fulmics status/imei resetting to 0000 on tot flash?

Hey guys, I have an LG G3 now on 47A that I updated using LG Flash tool/kdz. Unrooted and stock. I want to flash Fulmics but every thread says that the older versions of Fulmics didn't have working mobile data and bad connectivity for the Verizon variant. Is the new version the same? Also to root my phone and flash twrp, I heard about the tot method. However, many users say their IMEI reset to 0000000 and their phones were unable to connect to any network. How true is this? Did anyone experience this as well? Thank you everyone in advance!
Note: i am using a non Verizon 4g Sim. As of now, 4g and networks work seamlessly. Ive tried the following carriers on 4g and they all work: T-Mobile US 4g, Airtel IN 3g and 4g (both sim cards work), Vodafone AU 4g.
lg g3
TheSkilledPlaya said:
Hey guys, I have an LG G3 now on 47A that I updated using LG Flash tool/kdz. Unrooted and stock. I want to flash Fulmics but every thread says that the older versions of Fulmics didn't have working mobile data and bad connectivity for the Verizon variant. Is the new version the same? Also to root my phone and flash twrp, I heard about the tot method. However, many users say their IMEI reset to 0000000 and their phones were unable to connect to any network. How true is this? Did anyone experience this as well? Thank you everyone in advance!
Note: i am using a non Verizon 4g Sim. As of now, 4g and networks work seamlessly. Ive tried the following carriers on 4g and they all work: T-Mobile US 4g, Airtel IN 3g and 4g (both sim cards work), Vodafone AU 4g.
Click to expand...
Click to collapse
no its not true
i have lg g3 vs985 ,i tried many custom roms and flashed stock rom with the help of tot method ,nothing happens.
TheSkilledPlaya said:
Hey guys, I have an LG G3 now on 47A that I updated using LG Flash tool/kdz. Unrooted and stock. I want to flash Fulmics but every thread says that the older versions of Fulmics didn't have working mobile data and bad connectivity for the Verizon variant. Is the new version the same? Also to root my phone and flash twrp, I heard about the tot method. However, many users say their IMEI reset to 0000000 and their phones were unable to connect to any network. How true is this? Did anyone experience this as well? Thank you everyone in advance!
Note: i am using a non Verizon 4g Sim. As of now, 4g and networks work seamlessly. Ive tried the following carriers on 4g and they all work: T-Mobile US 4g, Airtel IN 3g and 4g (both sim cards work), Vodafone AU 4g.
Click to expand...
Click to collapse
The VS985 variant takes on the ROM flawlessly, but yes there have been reported data issues regarding using the variant with the Verizon network. I believe it stems from the international GSM rom built around the GSM radio interface layer. I would NOT be surprised to see that T-Mobile and others work well, but you will need to research the Fulmics thread to know for sure, as I only know that my VZW SIM does not work properly. (3G only)
kp263 said:
no its not true
i have lg g3 vs985 ,i tried many custom roms and flashed stock rom with the help of tot method ,nothing happens.
Click to expand...
Click to collapse
Thank you very much for your input. I may give it a try later.
b00ster23 said:
The VS985 variant takes on the ROM flawlessly, but yes there have been reported data issues regarding using the variant with the Verizon network. I believe it stems from the international GSM rom built around the GSM radio interface layer. I would NOT be surprised to see that T-Mobile and others work well, but you will need to research the Fulmics thread to know for sure, as I only know that my VZW SIM does not work properly. (3G only)
Click to expand...
Click to collapse
Ahh alright, I guess 3G only is fine with me (I only message people over mobile data, nothing else). I'll do my research then. So text messaging/calling works?
Thanks.
TheSkilledPlaya said:
Ahh alright, I guess 3G only is fine with me (I only message people over mobile data, nothing else). I'll do my research then. So text messaging/calling works?
Thanks.
Click to expand...
Click to collapse
Seems like SMS/Calling worked for me...but had troubles with MMS. Others were able to get both working with Textra/Handscent/etc but not the stock messenger app. It's been awhile ago since I tried the international ROM's and they're all kind of a blur from some reason. Not being able to get signal bars working was a deal breaker for me (travel in the states quite a bit) so I broke away. I believe the XSPIRIT is working on fixes for the international ROM. Once his source code becomes available it should open up a world of LG Goodness. Currently , the ROM's I tried were Andy's, TekCafe, LG Prime, Fulmics....all display the same problem, the ability for Verizon SIM's to completely work properly.

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

Help on G4 H810 AT&T in Europe - can convert to H815?

Hello all,
I bought on ebay a couple of G4 at a good price but I discovered only at the arrival they are H810 and not H815 models. It was stated in the description but I did not understood the difference, so it's my fault.
The main issues are two:
can't update from Android 5.1 to 6 without an AT&T subscription
doesn't support LTE band 20 that is used by my carrier Vodafone Italy so I have almost no 4G coverage
For the first issue I tried the forced FOTA method using ADB: I put the 20N.up file (using the specific AT&T MarshMallow for H810 foung in XDA) in the internal memory but the process does not complete after the reboot saying that the update service is not available
==> The second one is the worst one and I think I need either to enable extra bands or try to convert the phone to a H815, if the modem hardware is the same. I tried the hidden menu but under Field Test->Modem Settings the Band selection is not present!
So I ask to you experts if I can use a flashing tool like LGUP to flash my H810 with an H815 software and how.
Thank you!
ski-z said:
Hello all,
I bought on ebay a couple of G4 at a good price but I discovered only at the arrival they are H810 and not H815 models. It was stated in the description but I did not understood the difference, so it's my fault.
The main issues are two:
can't update from Android 5.1 to 6 without an AT&T subscription
doesn't support LTE band 20 that is used by my carrier Vodafone Italy so I have almost no 4G coverage
For the first issue I tried the forced FOTA method using ADB: I put the 20N.up file (using the specific AT&T MarshMallow for H810 foung in XDA) in the internal memory but the process does not complete after the reboot saying that the update service is not available
==> The second one is the worst one and I think I need either to enable extra bands or try to convert the phone to a H815, if the modem hardware is the same. I tried the hidden menu but under Field Test->Modem Settings the Band selection is not present!
So I ask to you experts if I can use a flashing tool like LGUP to flash my H810 with an H815 software and how.
Thank you!
Click to expand...
Click to collapse
you cant cross flash firmware as att has locked BL you will More than likely hard brick if attempted.
But you should be able to flashtool or lgup to the newest firmware that is released for your device.

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