LG G4 signal issues after update - G4 Q&A, Help & Troubleshooting

hello xda,
i bought (from ebay) an LG g4 h815t from hong kong. it come with android 5 pre-installed and everything works fine.
i decidet to update the phone to mm (via lg bridge) and now the signal is very very poor (alomost without coverage for all day)
Any idea?
thank you very much

Go back to LP since u cant flash modems via twrp since ur g4s bootloader is locked ..
Use lgup refurbish downlod the kdz the file search here on xda

jinderation said:
Go back to LP since u cant flash modems via twrp since ur g4s bootloader is locked ..
Use lgup refurbish downlod the kdz the file search here on xda
Click to expand...
Click to collapse
i'll try, thank you

Related

Install EUR on SEA G4

I have LG G4 815 SEA with 10b
Can install EUR firmware like 10c or 10d ?
Or should I wait for OTA update
Thanx
please any one can help?
I have the exact same concern as you, due to the 10C-SEA-XX has ****ty battery life (or maybe it's just the phone...?)
I think it should be fine, but i'm not using a PC right now so i can't go through with the KDZ flashing steps.
Yes, It can be
like me, H815T-HKG 10b can flash to H815-EUR 10c
but I show up a warning about the cust is not the correct region
I am going to find a way to fix it (cuz I saw some rom can remove the cust warning
and it lost my volte and 4G+ function
thanx all , i flashed 10d-OPT2 and it is great , finally my touch work fine

Bought an lg g4 vs986 (verizon) here in india from ebay.... Wanna update it...

So guys. As i said i bought an lg g4 verizon varian vs986 here in india from an ebay real cheap..... So i want to update it.... I connected it to lg suite with no avail..... N than i installed verizon updator.... It shown me an update of 1.96 gb n i updated i thought its marshmallow but it updated it to 5.1.... Now when i check for update it show up to date. N i know i can't update it via OTA without verizon sim.... So i am ready to flash it via lg flash tool....
My concerns are... Will it be any problem in if i flash it with lg flash tool. I mean will it be still factory unlocked as it was..... I just want to use my sim card in it.... Which is gsm and working fine as of now.... Will it still work as it was after i flash with lg flash tool....
Thanx in advance.... I'll appreciate any help here..... Plz...
faysalkhan007 said:
So guys. As i said i bought an lg g4 verizon varian vs986 here in india from an ebay real cheap..... So i want to update it.... I connected it to lg suite with no avail..... N than i installed verizon updator.... It shown me an update of 1.96 gb n i updated i thought its marshmallow but it updated it to 5.1.... Now when i check for update it show up to date. N i know i can't update it via OTA without verizon sim.... So i am ready to flash it via lg flash tool....
My concerns are... Will it be any problem in if i flash it with lg flash tool. I mean will it be still factory unlocked as it was..... I just want to use my sim card in it.... Which is gsm and working fine as of now.... Will it still work as it was after i flash with lg flash tool....
Thanx in advance.... I'll appreciate any help here..... Plz...
Click to expand...
Click to collapse
Yea it will still be unlocked...but keep in mind once you update to mm you won't be able to unlock the bootloader or root the phone....so if you don't mind a stock device ull be fine
Sent from my Trinidys_VS986 using Tapatalk

LG G3 soft bricked!! flashed wrong firmware

Heloo everone i am from INDIA
recently i purchased and refurbished lg lg3 within setting i could se it was D855 but on body it was D850
so i thoguhts its D855 because software it was running was D855 but then i flashed D855 firmware to update it and it is soft bricked i direct goes to download mode and nothing works
I took it to a shop he tried sevelar firmware at once i got it boot up but no camera wifi no modem, so it was not the correct one,
So is thier a way i can get it working?
How could i figure it is sprint at&t or verzion??? because it was an cdma set,
Cm13 or stock rom anything could work for me
Anyone please give me a procedure will b thankful to U.... :crying:
I you are able to access download mode, try and flash the latest marshmallow KDZ for D855. My device also has D850 on the back but it has the D855 software.
youssefkr said:
I you are able to access download mode, try and flash the latest marshmallow KDZ for D855. My device also has D850 on the back but it has the D855 software.
Click to expand...
Click to collapse
an you give me the link u have flashed on your device n tool n procedure you sued to flash it??
will b thank full 2 u
happy3777 said:
an you give me the link u have flashed on your device n tool n procedure you sued to flash it??
will b thank full 2 u
Click to expand...
Click to collapse
First open up your phone,exact model will be on the board.then flash accordingly software.
Jahanzaibawan said:
First open up your phone,exact model will be on the board.then flash accordingly software.
Click to expand...
Click to collapse
I know already tried But it was D855 already tried n that caused soft bricking....

G4 shows wrong version

long time lurker here.I bought a g4 second hand.it was advertised as h815 unlocked.the imei checked out online and all stickers said 815 as well.but in hardware info it showed h815T(HK variant).thankfully i knew how to flash firmwares so i downloaded a KDZ and flashed it with lg ft 2014.for some reason (i dont remember why) i flashed 2-3 times with other kdzs and ended up in the current state.the phone now shows H818(dual sim variant) in hardware info and doesnt
detect my sim card(same sim works fine in my G2).I never downloaded the h818 kdz.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||((TLDR))||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
phone shows wrong model in settings and doesnt detect sim card.flashing stock kdz doesnt fix this
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
any help would be appreciated as i have been flashing various KDZs since the last 2 months but have had no luck yet.
ps.
i am able to root using system.img injection method if root is required
nizamelahi said:
long time lurker here.I bought a g4 second hand.it was advertised as h815 unlocked.the imei checked out online and all stickers said 815 as well.but in hardware info it showed h815T(HK variant).thankfully i knew how to flash firmwares so i downloaded a KDZ and flashed it with lg ft 2014.for some reason (i dont remember why) i flashed 2-3 times with other kdzs and ended up in the current state.the phone now shows H818(dual sim variant) in hardware info and doesnt
detect my sim card(same sim works fine in my G2).I never downloaded the h818 kdz.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||((TLDR))||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
phone shows wrong model in settings and doesnt detect sim card.flashing stock kdz doesnt fix this
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
any help would be appreciated as i have been flashing various KDZs since the last 2 months but have had no luck yet.
ps.
i am able to root using system.img injection method if root is required
Click to expand...
Click to collapse
i think is was misinterpreted. its a h815 but a h815t indeed and unlocked mean carrier as you know theres no way to unlock bootloader.. you need to flash the h815T KDZ. i hope that you didnt mess your imei.
inject only works in LP not on MM. also youll need to find out if you can downgrade to lollipop. as this phone have antirollback wich means once you are on a version you cannot go nack or youll hard brick phone.
raptorddd said:
i think is was misinterpreted. its a h815 but a h815t indeed and unlocked mean carrier as you know theres no way to unlock bootloader.. you need to flash the h815T KDZ. i hope that you didnt mess your imei.
inject only works in LP not on MM. also youll need to find out if you can downgrade to lollipop. as this phone have antirollback wich means once you are on a version you cannot go nack or youll hard brick phone.
Click to expand...
Click to collapse
thank you for the response.im on lollipop right now since ft 2014 doesnt flash MM and lgup and ft 2.0.1.6 stop flashing after checking phone info(they stop flashing as phone shows h818 but kdz is for h815).I flashed h815T kdz multiple times(twice just today)but phone still shows h818 in lgup and in settings.the phone cant be h818 as it only has 1 sim slot.
imei is ok right now.SIM issue happened to be a ****ty sim cut job by the customer service guy.only remaining issue is the wrong version showing up in phone settings. cant flash MM due to that.
also,is there anything good about upgrading to MM???
nizamelahi said:
thank you for the response.im on lollipop right now since ft 2014 doesnt flash MM and lgup and ft 2.0.1.6 stop flashing after checking phone info(they stop flashing as phone shows h818 but kdz is for h815).I flashed h815T kdz multiple times(twice just today)but phone still shows h818 in lgup and in settings.the phone cant be h818 as it only has 1 sim slot.
imei is ok right now.SIM issue happened to be a ****ty sim cut job by the customer service guy.only remaining issue is the wrong version showing up in phone settings. cant flash MM due to that.
also,is there anything good about upgrading to MM???
Click to expand...
Click to collapse
Actually MM isnt an upgrade. Lollipop is best(maybe nougat will be worth anything). I think you should flash uk v20g kdz with lg up(or LG firware flash 2014). I suggest using LG UP also you can give TOT method a try
check this thread:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
reply to me if you will need any help
Minto107 said:
Actually MM isnt an upgrade. Lollipop is best(maybe nougat will be worth anything). I think you should flash uk v20g kdz with lg up(or LG firware flash 2014). I suggest using LG UP also you can give TOT method a try
check this thread:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
reply to me if you will need any help
Click to expand...
Click to collapse
cant flash tot as lgup and ft 2.0.1.6 check phone version....
no MM for me then...lets just wait for nougat
the only issue left now is no network reception
nizamelahi said:
cant flash tot as lgup and ft 2.0.1.6 check phone version....
no MM for me then...lets just wait for nougat
the only issue left now is no network reception
Click to expand...
Click to collapse
Do they check in build.prop? If so just change build.prop value and you're good to go. I think that there is also possibility to fake your software version and then flash anything you want
Wysłane z mojego LG-H815 przy użyciu Tapatalka

Please need LG G4 H81021z-22f stock firmware or OTA update files

Hello guys.
i have freezing problems with my LG G4 H81021y so i am trying to update it, so it may solve the problem.
So if any one have an update files or stock firmware for AT&T LG G4 please give a link
OR if you have a solution for this freezing problem i would appreciate any sort help
Really no one has update files for LG G4 H810 :crying:
bimad99 said:
Hello guys.
i have freezing problems with my LG G4 H81021y so i am trying to update it, so it may solve the problem.
So if any one have an update files or stock firmware for AT&T LG G4 please give a link
OR if you have a solution for this freezing problem i would appreciate any sort help
Click to expand...
Click to collapse
You could try a factory restore if you haven't already. Also, the LG Bridge app for your pc (download from LG site), may provide an update or an option to reinstall your firmware.
The alternative is to check (private message) with other H810 XDA owners in relevant threads to see if someone has a copy of a suitable stock firmware.
Note: If you want to install a custom rom to update to the latest security patches, etc., , you can unlock your bootloader unofficially with steadfasterX's brilliant work (many H810 users have gone this route now) - check it out here: [UNLOCK][UNOFFICIAL][G4] Unlock **ANY** LG G4 device with UsU. Read the OP thoroughly and make sure you understand it fully. You will have to have an ARB version of two or less in order to go this route, so before upgrading to any other H810 firmware, check your ARB version with SALT.
sdembiske said:
You could try a factory restore if you haven't already. Also, the LG Bridge app for your pc (download from LG site), may provide an update or an option to reinstall your firmware.
The alternative is to check (private message) with other H810 XDA owners in relevant threads to see if someone has a copy of a suitable stock firmware.
Note: If you want to install a custom rom to update to the latest security patches, etc., , you can unlock your bootloader unofficially with steadfasterX's brilliant work (many H810 users have gone this route now) - check it out here: [UNLOCK][UNOFFICIAL][G4] Unlock **ANY** LG G4 device with UsU. Read the OP thoroughly and make sure you understand it fully. You will have to have an ARB version of two or less in order to go this route, so before upgrading to any other H810 firmware, check your ARB version with SALT.
Click to expand...
Click to collapse
thanks for reply.
I already tried the factory reset, but no lights on.
Tha LG Bridge won't work as i know cuz i don't have active AT&T Sim card and i don't live in tha usa.
Asking other H810 XDA Owners for a suitable stock firmware, i really didn't think about it so i will give it a try.
My H810 already have H81021y software which has ARB 3. so no root for me, i guess :crying:
bimad99 said:
thanks for reply.
I already tried the factory reset, but no lights on.
Tha LG Bridge won't work as i know cuz i don't have active AT&T Sim card and i don't live in tha usa.
Asking other H810 XDA Owners for a suitable stock firmware, i really didn't think about it so i will give it a try.
My H810 already have H81021y software which has ARB 3. so no root for me, i guess :crying:
Click to expand...
Click to collapse
Yes, no root, no bootloader unlock for you, unfortunately.
However, ALL MAY NOT BE LOST ... check out this thread that I found: link... to Android 6.0 MM h81021y archive tot
There are a couple of links to the firmware you seem to be looking for. It is a TOT file but you should be able to flash it following the TOT method as outlined in this thread: [Guide] LG G4 Stock Firmware (Go Back to Stock) KDZ & TOT Method - scroll down to the TOT method.
Good luck.
bimad99 said:
Hello guys.
i have freezing problems with my LG G4 H81021y so i am trying to update it, so it may solve the problem.
So if any one have an update files or stock firmware for AT&T LG G4 please give a link
OR if you have a solution for this freezing problem i would appreciate any sort help
Click to expand...
Click to collapse
Could also be the ilapo if a factory reset does not solve it.
Sent from my OnePlus 6T using XDA Labs
steadfasterX said:
Could also be the ilapo if a factory reset does not solve it.
Sent from my OnePlus 6T using XDA Labs
Click to expand...
Click to collapse
The ilapo !! what do you mean ??
Does anyone knows what this ilapo thing is ?
bimad99 said:
The ilapo !! what do you mean ??
Click to expand...
Click to collapse
uhm what about using the search box ???
Also find the bootloop fix list in my signature .
Still its just a guess . Check the first 3 digits of your serial (sticker behind the battery). If it starts with 603 or lower you board will be sooner or later affected by the ilapo .
Sent from my OnePlus 6T using XDA Labs

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