G3 D855 No cellular connectivity since upgrade - G3 Q&A, Help & Troubleshooting

Hi, my eBay UK purchased reconditioned D855 did an LG software update last night for "Google optimisations" and it installed, I believe, the v20i-aug-26-2015 update.
My phone says it's now running V20n-TUR-XX.
Hardware info
Model: LG-D855TR
Android version: 5.0
Baseband: MPSS.DI.2.0.1.c1.13.2-00002-M8974AAAAANPZM-1
Kernel 3.4.0
Build number LRX21R.A1445947622
Software version V20n-TUR-XX
Network: Three
Everything worked perfectly before the LG update, now it can't see to any cellular data network (I have the signal strength meter showing but no data icons at all) and it was working perfectly before the update.
It works fine on wifi.
I've factory reset and checked everything I could - it's still not seeing the cellular data network. I've manually selected three and let it do it automatically but still no joy. Data is enabled.
LG can't find the IMEI on their system which means it's a foreign or international version I guess and, despite the fact I'm 99.9% sure their update has screwed my phone, they won't take it back to fix it.
What are my options do you think, re-flashing? If I have to then I'd rather go to a stock LG rom or, if possible, a vanilla Android ROM. What do you think, and what flash options do you think I should go for if I have to flash? Fairly n00b when it comes to doing that.
Thanks for any help you can offer!

Solved, but don't know how to delete.

Related

[D850] Lollipop Update not found - Unlocked Phone

Hi,
I bought a LG G3 from Ebay which was blocked on AT&T for using it both in the USA and in Europe (I choose this model for its frequencies supported). It is a D850 model as you can expect.
After receiving it, I unlocked it to run different carriers. I rooted it as well.
I want to install the AT&T 5.0.1 update from OTA (I don't care about root right know). But I have one big problem. I keeps saying that my software is up to date which is wrong. Is it because I'm on T-Mobile right know and AT&T blocks the update ?!
I'm using build D85010d. right know and I never had a software update notification. I've tried to set my phone date to a couple days forward as suggested by Android Police. No luck.
I just want to have the update. After that if it says "you are rooted, you can't install", I will unroot it and reinstall.
Is there any way to update manually ? I heard it's impossible thanks to AT&T.
This is beginning to irritate me.
Thank you in advance
picobuntu said:
Hi,
I bought a LG G3 from Ebay which was blocked on AT&T for using it both in the USA and in Europe (I choose this model for its frequencies supported). It is a D850 model as you can expect.
After receiving it, I unlocked it to run different carriers. I rooted it as well.
I want to install the AT&T 5.0.1 update from OTA (I don't care about root right know). But I have one big problem. I keeps saying that my software is up to date which is wrong. Is it because I'm on T-Mobile right know and AT&T blocks the update ?!
I'm using build D85010d. right know and I never had a software update notification. I've tried to set my phone date to a couple days forward as suggested by Android Police. No luck.
I just want to have the update. After that if it says "you are rooted, you can't install", I will unroot it and reinstall.
Is there any way to update manually ? I heard it's impossible thanks to AT&T.
This is beginning to irritate me.
Thank you in advance
Click to expand...
Click to collapse
have you found any solutions to this? i'm using an unlocked att G3 as well (although not blocked) and I can't figure out how to update. i even tried to put someone's ATT sim in it and it still said it was up to date, which is completely false. god i hate att. can't update, can't use Qi charging, can't do anything.
I can't update my lg g3(d855) too. It's have the 4.4.2 kitkat and i want upgrade it to 5.0.1 lollipop.
Plzz help if u find a solution to this problem
Same issue .......how to update to lollipop manually ....................... if someone can help it will be appreciated :good:
I am having an issue with the AT&T Lollipop update, as well. I bought a D850 from eBay on KitKat 4.4.2, and when I inserted my AT&T MVNO SIM and checked for updates, it found the Lollipop update. It started downloading, but about 2/3 of the way through, the display shut off (I had it set for 15 minutes). When I got the display back, this action had stopped the download, and it did not continue. Now, when I check for updates, it just says I have the current version. I have run system resets, and tried a different AT&T SIM, but I can't get the Lollipop download again. Does the start of a FOTA download set a flag somewhere that prevents re-downloading?
Only thing I could think of is asking for a .kdz file for your phone and carrier and then flashing that using the LG Flash Tool
unable to update D850
I have the same issue. I have a D850 AT&T version and my is not showing any update available. I am in 4.4.2. Any solution how to update? Please help. Thanks to all
I'm another victim of this. Have someone found a solution? I'm desperated. And sad, I feel scammed.
At&t LG g3 d850
Hi, I'm New in the XDA forum.
My name is Neeraj
And when I saw your post, I found me.
What ever you do please don't do custom rom update.i found that in a hard way.
Like you I too bought one from ebay, at&t logo but unlocked, and while trying to update says it's up to date.
Later I found out I need at&t SIM to update the phone. Because it's only network unlocked not the entire phone. It still got some sorts of at&t restrictions.
Any way I went and rooted, installed twrp, and cm13 6.0.1 then Walla my phone goes into reboot loop and when it finally opens up the network doesn't work.
By the I'm in Australia , temporary residence and I don't have at&t SIM.
So good luck and infact i'm hoping some one will guide me too
I fixed it, don't know exactly if it will work on others.
But what exactly I did was search Google download official stock rom for at&t LG G3 D 850 ( KitKat or lollipop), flash the rom and Walla got my IMEI number restored and it fixed my boot loop problem.
Then backed up by all data, IMEI, etc and then flashes back to custom CM marshmallow. Now all is well. ?
Hope it this will help some one aleast a newbie lie me

LG F240-EUR upgrading issues

I have Lg F240-EUR version, which is running on 4.1.2.but the software/os that came with the phone is slightly different from the original firmware.And the signal is sometimes dropping like showing x mark for 3-5 times a day.and the main problem is it cant be updated to any version.I checked in the IMEI website and found that my model is f240s.If I upgrade thehpone,i will loose signal forever as some people mentioned that they lost signal after upgrading their phone through custom roms or official firmware in other forums.I want to upgrade my phone to either official 5.0 or any custom 5.0 rom. please help me in upgrading my phone so that i shouldn't loose the signal even after the update.
krishna13 said:
I have Lg F240-EUR version, which is running on 4.1.2.but the software/os that came with the phone is slightly different from the original firmware.And the signal is sometimes dropping like showing x mark for 3-5 times a day.and the main problem is it cant be updated to any version.I checked in the IMEI website and found that my model is f240s.If I upgrade thehpone,i will loose signal forever as some people mentioned that they lost signal after upgrading their phone through custom roms or official firmware in other forums.I want to upgrade my phone to either official 5.0 or any custom 5.0 rom. please help me in upgrading my phone so that i shouldn't loose the signal even after the update.
Click to expand...
Click to collapse
I bought a similar refurbished phone from Aliexpress and the system information is the same as yours. I think they just messed with the build.prop so the build information looks ready for Europe. I will advise you to install the kdz so you have the Stock ROM and firmware. That was what I did anyway. The only porblem is that you will get some Korean apps but the phone is stable anyway. And when flashing, use "CSC" not "Normal" flash.
By the way, my phone was lagging very much before I installed the Stock ROM.
lallolu said:
I bought a similar refurbished phone from Aliexpress and the system information is the same as yours. I think they just messed with the build.prop so the build information looks ready for Europe. I will advise you to install the kdz so you have the Stock ROM and firmware. That was what I did anyway. The only porblem is that you will get some Korean apps but the phone is stable anyway. And when flashing, use "CSC" not "Normal" flash.
By the way, my phone was lagging very much before I installed the Stock ROM.
Click to expand...
Click to collapse
So after upgrading ,is ur phn showing signal normal?many mentioned that after upgrading they lost their mobile signal and their imri number to all zeros.so are u sure this wont happen to me?i am frm india.so there will be no problem with the bandwidths for networks in india?
At present even my phone running on 4.1.2,whenever i enable my data,after disabling it my signal shows x mark for 2-4 seconds then i will get back again.also some cals cant connect to my phn.so after upgrading,are there any chances of loosing my phone signal?
krishna13 said:
So after upgrading ,is ur phn showing signal normal?many mentioned that after upgrading they lost their mobile signal and their imri number to all zeros.so are u sure this wont happen to me?i am frm india.so there will be no problem with the bandwidths for networks in india?
At present even my phone running on 4.1.2,whenever i enable my data,after disabling it my signal shows x mark for 2-4 seconds then i will get back again.also some cals cant connect to my phn.so after upgrading,are there any chances of loosing my phone signal?
Click to expand...
Click to collapse
I cannot reaqlly gurantee your phone being messed up but mine works perfectly after installing the kdz. I installed the 4.4.2 version although there is lollipop version as well. I just want to try the kitkat version for some time.
lallolu said:
I cannot reaqlly gurantee your phone being messed up but mine works perfectly after installing the kdz. I installed the 4.4.2 version although there is lollipop version as well. I just want to try the kitkat version for some time.
Click to expand...
Click to collapse
I am unable to install custom recovery on my f240s.can u pls help me with the steps and links inorder to take backup of my current version. Also one doubt.If anything goes wrong after upgrading to lollipop (like if i lost signal in my phone) then after restoring the backup rom,can i get the signal back?? Also which is better? Some complained that after upgrading to lollipop they got signal issues.is installing kitkat= installing lollipop or is there any difference considering to the signal prblm?
(sorry for my bad english but i need help.pls suggest me)

Can't connect to network after restoring LG G2 LS980 to stock

Hello,
I followed this guide to restore my sprint LG G2 to stock Kitkat 4.4.2. Everything went fine, the phone is working, the only problem I have is that I can't connect to any network. The phone is not recognizing any of the local network providers. I bought this phone on ebay and it came with a custom rooted rom installed on it, so I decided to "clean up the mess" and restored stock kitkat. As I mentioned before everything went fine, but the network is not working (it was working with the android version before i restored stock 4.4.2). Maybe its because I'm not living in the USA (I'm from Bosnia/Europe). Should I flash a different radio on it? The phone is updating atm with OTA and I'm pretty sure that the updates wont help. Did anyone else had these issues? Any help would be highly appreciated.
Update: My phone just got upgraded to Lollipop, but the network issue is still present
Update 2: I just reinstalled "cm-12.1-20151031-NIGHTLY-ls980" Lollipop 5.1.1. and it had no problems to find all the networks in my area, so this clearly has to do with stock LG android 4.4.2.
When you say you can't connect to network, are you referring to your mobile carrier network, or like WiFi?
If it's your mobile carrier that you can't connect to, you might need to switch your radio. Take a look at this guide and the section about using radio switcher: http://forum.xda-developers.com/sprint-g2/help/how-sprint-lg-g2-ls980-to-t-mobile-t3230685
Fuzz1303 said:
When you say you can't connect to network, are you referring to your mobile carrier network, or like WiFi?
If it's your mobile carrier that you can't connect to, you might need to switch your radio. Take a look at this guide and the section about using radio switcher: http://forum.xda-developers.com/sprint-g2/help/how-sprint-lg-g2-ls980-to-t-mobile-t3230685
Click to expand...
Click to collapse
Hey there. Sorry for the late response. I kinda gave up on making the stock LG ROM work, which is why I kept on using CM12.1 . What I was referring to was my mobile carrier. The phone has no problems connecting to any WiFi signal.
I didn't try to flash any radios at all after restoring the LG G2 stock ROM. Maybe I should have tried one of the radios from this CM12.1 for LG G2 tutorial. Here is a direct LINK to the full list of LG G2 radios, where I downloaded the radio for my phone. I'm not sure if the other LS980 Radios would work on my device. There are 4 different radios available for the LG G2 LS980.
Do you think flashing one of these radios would help solving this problem after restoring the LG stock ROM?

Flashed 5.1 rom to 4.4 and missed the Rf-calibration

Hello guys,
my first post here on XDA, I'm having problems with the G3 not finding 3g cellular. I can see the RF-calibration is not okay from the hidden menu so I guess on the process I messed up the digital band filters on the RF-module. The phone can find 2g cellular & sometimes 4g cellular but almost never 3g.
Heres the whole story:
1. Bought used and rooted LG G3, was on android 4.4
2. Flashed new modem and 5.1 rom --> lost IMEI(I guess at this point I lost the calibration also but didn't notice it)
3. Flashed original 4.4 rom & repaired the IMEI with the Qualcomm Qpst tool, PID and some other nv items seemed to be erased as well
4. The LG support tool updated the phone to 5.1 and then 6.0
5. Now I'm at the 6.0 with IMEI ok, but the rf-calibration status is "not okay"
Found several topics saying not to try flash 5.1 custom rom to 4.4. I also viewed the installation script of the modem and the rom and I think that there is possibility that 5.1 had somehow different memory structure or had more nv-items and in order to successfully update from 4.4 the script should have manipulated the nv-memory too.
Does anyone know what happens when you flash 5.1 rom to 4.4 phone?
So basically are the filter profiles & other nv-items overwrited in the memory or does my modem software just point on the wrong addresses in the memory at the moment and the data still is left? Found LG G3 factory guide from the internet and they calibrate the filters at production.
I'm basically quite new with android but know some of signal processing and c++ & python programming. Will be more than happy about all information.

Need some advice and help...

Hello. I hope you can help me resolve some issues...
I have the samsung sgh-i747m version. I originally had it rooted on stock 4.4.2 and working with a knowroaming sim. The knowroaming sim would either connect to Rogers, Telus or Bell depending on the signal strength. Mainly Bell in my case. Anyways, I use the sim for whatsapp and it was giving me issues. Namely, notifications would stop working after the phone sits for a while. I read that it might be a problem with 4.4.2 so I decided to update it to 6.0.1. Reason I chose 6.0.1 is because the guide uses the same recovery as I do (CWM) and I'm guessing that since most development has moved on to 7.1, 6.0.1 should be stable?
Anyway, I flashed the ROM and everything seems to work fine except my knowroaming sim no longer works. In other words, it doesn't connect to any network Rogers, Telus, or Bell. For some reason, when I go search for networks, it always says no networks found. So I popped in my Telus sim from my other phone and it connected to the network fine but again, searching for networks shows no networks. I think knowroaming doesn't connect because it can't find any networks either. So I spent some hours looking to see what the problem is and some of the jargon is starting to confuse me and making me hate Samsung for the things they do.
I managed to download an app called Phone Info *Samsung* and I will list the information here and maybe you can tell me what is going on:
If you have any suggestions on what I should do to get the network providers showing up, then I'm all ears. If updating to a 7.1.2 rom will fix this issue, I'll gladly do it.
Thanks.
Nobody?
Replace Cwm with twrp and try a different custom ROM?
I tried the octa-m rom 7.1.2 and still the same thing. I'm going to go back to stock and try again.

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