LG G4 LS991 ZVC Unlock - G4 Q&A, Help & Troubleshooting

I have lg g4 ls991. i purchased it from dubai and at that time it was working perfect. My sim card was working seamlessly and having calls and sms working but when an update of ZVC firmware arrived then my phone and it refused to accept the sim card signals and just showing "No Service".
Kindly help me, how can I resolve this issue.

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[Q] LG G3 upgrade to 5.0.1

Hello gurus, i have a problem with my LG G3 i upgraded it to 5.0.1 but it is stuck at the LG Logo but without a sim card in it it works fine.
i don't think there is an issue with the sim card itself as it works in my other phone and was working fine in my LG G3 before the upgrade. the phone itself in not rooted, it is still locked by Fido so i don't see why there would be any conflict with the sim card.
i tried to restore upgrade errors with PC suite but that didn't help either. help?
Carrier: FIDO Canada
model: LG-D852
this_is_confusing said:
Hello gurus, i have a problem with my LG G3 i upgraded it to 5.0.1 but it is stuck at the LG Logo but without a sim card in it it works fine.
i don't think there is an issue with the sim card itself as it works in my other phone and was working fine in my LG G3 before the upgrade. the phone itself in not rooted, it is still locked by Fido so i don't see why there would be any conflict with the sim card.
i tried to restore upgrade errors with PC suite but that didn't help either. help?
Carrier: FIDO Canada
model: LG-D852
Click to expand...
Click to collapse
download the kdz and flash it(gogle how to or see in my most thanked

LG G4 H815 no Service after Marshmallow Update!

Hi! Guys I'm new here. I need a little help. I just updated my LG G4 to marshmallow using LG Bridge. The update was successful. After the update I had to factory reset my phone because of problem. Since then I am having trouble with it. I've inserted a fully working sim card but it's still showing me Emergency Calls Only. I've tried other sim cards and also have reset my phone again but the problem is still there. Before the update the phone was running excellent no problems at all .I can't figure out how I can solve this problem. If anyone has got a solution please help me.
Thank.
Burhan Aslam said:
Hi! Guys I'm new here. I need a little help. I just updated my LG G4 to marshmallow using LG Bridge. The update was successful. After the update I had to factory reset my phone because of problem. Since then I am having trouble with it. I've inserted a fully working sim card but it's still showing me Emergency Calls Only. I've tried other sim cards and also have reset my phone again but the problem is still there. Before the update the phone was running excellent no problems at all .I can't figure out how I can solve this problem. If anyone has got a solution please help me.
Thank.
Click to expand...
Click to collapse
I have same problem with you, maybe other friends have solve my problem...
why not give KDZ a try.?
I have do use lg up but always no service
same problems here, using H815 work fine before but after update MM via LG Bridge my phone bricked
downgrade to 5.1 using LGUP my phone is on again but now with no signal or no services....
it look like my phone is locked now, until now still finding solution....
cannot unlocked bootloader because my device ID is not recognised

LG G3 D851 shows full bar signals but no service

Hey guys i'm having some problems with my lg g3 d851, since the screen of my beloved lg g2 died after 2 years and a half, my friend gave me his lg g3 to use it as a tablet since the phone doesnt recognize any signal at all, right now is running the stock rom for android marshmallow, everything works fine except for the signal that either always keeps in "no service", i already try to put another sim card on the phone and its showing the same problem, already checked the IMEI on the swappa blacklist and everything is okay, here are a few screenshots, any thoughts on how to solve this problem would be very appreciated thank you!
Have you modified the APN settings under mobile networks?
kfcherry said:
Have you modified the APN settings under mobile networks?
Click to expand...
Click to collapse
hi thanks for replying, yeah i already modified the APN settings under mobile networks with the APN of my carrier that is IUSACELL (AT&T México) and is still showing the same problem "no service" or "searching"
I had the same problem, try installing another modem, or send me an pm, I have the same mobile company (right now I'm having some problems with the at&t mexico)
I am having a similar problem with my d851 30g. It isvnot rooted and running stock android 6.0 tmobile rom. I am with movistar (mexico) it will have signal and be on the network and then eject the sim saying invalid then reset. Did factory reset. Movistar sim worked for about an hour and then same thing. Have a s from telcel switched and no problem till this Morning. Did the same thing and restarted. Recognized the sim and all fine. I am new to this and could use a little help. As it is connecting with the other sim and not my movistar sim. Possible software issue or corrupted sim?
Thanks in advance,
Alex miller

LG G4 Verizon VS986 27C Says Service disabled.

I bought a Verizon G4 VS986 with firmware 27c and was using it with non verizon sim card it was working fine but suddenly it says service disabled and "sim card is not from verizon wireless" and it stopped reading my sim card. I have tried resetting and changing network mode to Global and CDMA but it didn't work. Please help as the phone is currently unusable.
Satyam171 said:
I bought a Verizon G4 VS986 with firmware 27c and was using it with non verizon sim card it was working fine but suddenly it says service disabled and "sim card is not from verizon wireless" and it stopped reading my sim card. I have tried resetting and changing network mode to Global and CDMA but it didn't work. Please help as the phone is currently unusable.
Click to expand...
Click to collapse
Make sure it didnt get black listed if u bought it from a third party they may have not paid it off or reported it lost

Lg G8 Error LGUP at 65%

a week ago I lose imei of my LG G820um verizon after crosflash to canada Firmware.
And i have no backup of Lun5.
I try many attempts but imei and network not recovered.
At least one guy solve my problem
and phone in working network but now i m not able to flash or update my phone.
Phone stuck on 65% on LGUp
And error 08x000000ce .

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