yashsingh1/xdaforums huggingface dataset:
[G4 Q&A, Help & Troubleshooting] Hoffmanns:
Please HELP!!!

I installed clean 20C kdz and everything working fine, but I need ROOT and can not install TWRP :(:confused:

I used tutorial from first page:

adb reboot bootloader <enter> - working fine and Im in fastboot

but after this I tap fastboot boot TWRP.img and nothing happen only I see waiting device long time and after some time I must pull out battery!!!

I have TWRP.img in my adb folder and other ADB commands working fine.....

Please help me or send me step by step tutorial :good::good:

Thank you very very very much :):):)

edit: now is everything fine, I had bad fastboot drivers...
[G4 Q&A, Help & Troubleshooting] Evnul000:
dude is there anyway i can install this kdz if im bricked and cant enter download mode but only reach the lg logo before the boot animation?
[G4 Q&A, Help & Troubleshooting] Hoffmanns:
I had same problem. Stuck on logo and nothing happen.

But I had installed TWRP and I flash Genisys ROM and boot normally.

After boot to the system I used LGUP for clean install 20c kdz.

Now I using 20c + TWRP + SuperSU 2.67 and everything working fine and smoth :cowboy:
[G4 Q&A, Help & Troubleshooting] rfec:
Just wondering if LGUP is able to relock bootloader...but I guess it is not possible in any way.:confused:
[G4 Q&A, Help & Troubleshooting] goran_oh:
Not possible to lock bootloader
[G4 Q&A, Help & Troubleshooting] newuser25:
I successfully upgraded to 20C from 20B but ended up with Vodafone boot logo. There was no branding on 20B. My understanding was that 20C was also unbranded. I am just curious what's going on. Phone was originally from Vodafone UK. Is it because I upgraded without wiping all data? Can anyone confirm that refurbishing and flashing 20C clean will remove branding?
[G4 Q&A, Help & Troubleshooting] kevtrysmoddin:
Refurbishing debranded my o2uk g4
[G4 Q&A, Help & Troubleshooting] Ugglaimossen:
worked perfect on my swedish H815 (boot unlocked) with H81520C_00_1218.kdz, then rooting with SuperSU (2.66), thanks!
[G4 Q&A, Help & Troubleshooting] rfec:
Can you please tell me how to modify these rows to look like this?

ro.lge.swversion=H81510c

ro.lge.swversion_short=V10c
[G4 Q&A, Help & Troubleshooting] davebugyi:
Use Root Explorer (or similar app)

Navigate to /cust/OPEN_COM/cust_OPEN_EU.prop and edit the file
[G4 Q&A, Help & Troubleshooting] rfec:
Just did as you said, restarted the phone (PC too), but LGUP still unable to see the phone. :(
[G4 Q&A, Help & Troubleshooting] newuser25:
Refurbishing didn't help. Had to go back to 20B to get rid of Vodafone boot logo. Will try 20D when becomes available on xda. Thanks anyway.
[G4 Q&A, Help & Troubleshooting] ursulavasey:
I used the kdz file below with LGUP to debrand my LG G4 H815 UK Vodafone edition.

https://www.androidfilehost.com/?fid=24052804347845226

I got it from this page.

http://xdaforums.com/g4/development/android-6-0-update-kdz-h815-t3232240

I used it on my husband's phone too (same model, network, etc).
[G4 Q&A, Help & Troubleshooting] Aripex:
Out of interest, did you get an error similar to the message below on boot using this KDZ file?

I have a Vodafone PAYG handset and all of the Generic UK KDZ files I've tried bring up the above message on boot start-up.
[G4 Q&A, Help & Troubleshooting] ursulavasey:
No, I got no error message. It worked first time on both phones.
[G4 Q&A, Help & Troubleshooting] baileyjr:
I had the same issue with my 3UK branded device. I just flashed the 20b KDZ from here with LGUP without any issues http://xdaforums.com/g4/development/stock-h815-20b-images-flashables-kdz-t3257544
[G4 Q&A, Help & Troubleshooting] Aripex:
Thanks both - I was only trying Lollipop firmware, so will give the Marshmallow KDZ files a try.

Update: Just to let you know the Marshmallow file worked a treat! :)
[G4 Q&A, Help & Troubleshooting] Luc989:
H815 v20D.kdz

http://xdaforums.com/showthread.php?t=3301366

Poslano sa mog LG-H815 koristeći Tapatalk
[G4 Q&A, Help & Troubleshooting] phooeyman:
Sorry guys noob here, what official FW do i need please for stock wipe of Vodafone UK G4 , i want to unbrand the phone first then maybe upgrade to Marshmellow. Any help is much appreciated
[G4 Q&A, Help & Troubleshooting] Bramzzz:
Just upgraded with LGUP from V20C to V20D without issues, phone is working fine and will try to get a battery stats in here as soon as I had a couple of cycles of battery.

This LGUP is definately a major improvement of the G2's upgradesystem! Lovin' it!

edit* I've got a H815 EUR in the Netherlands btw ;)
[G4 Q&A, Help & Troubleshooting] goran_oh:
Anyone try to instal 20d on h815t?
[G4 Q&A, Help & Troubleshooting] Aca902:
I have a TWN version of LG G4 H815, and im on v20a (flashed via FlashFire), and now when i try to use lgup to wipe all and flash v20d, the phone reboots into firmware upgrade and lgup stop at 9% and show some kind of error 2000, and then i have to pull out my battery to boot up the device again. I tried refurbished and upgrade, none of those 2 seem to work for me. Any suggestions? Thanks.
[G4 Q&A, Help & Troubleshooting] TonyStark R.I.P.:
Are you selecting Upgrade in the Process section?

Can you go back to lollipop? Try that, then LGUP to 20d
[G4 Q&A, Help & Troubleshooting] Aca902:
I tried upgrade, same error. I'll try going back to lollipop. Thanks.
[G4 Q&A, Help & Troubleshooting] OLLEY102:
Hi, I have installed Android Marshmallow 6.0 H81520A_00.kdz using LGUP. It worked fine but I noticed it was a Poland beta version, whereas I wanted the Europe one. Plus, KnockCode and Security Patches were missing. I found out recently the Europe 20C version had been uploaded on lgkdz.com, so I tried that. Now, LGUP does recognise my device, but it does not show the processes that allow me to select refurbish or upgrade, for example, as shown in many tutorials on the internet. I've Googled so much but found nothing. What I am trying to do is flash the 20C using LGUP to get me on track.

I hope you can help! I'm really desperate!

Thanks
[G4 Q&A, Help & Troubleshooting] phooeyman:
Hi Guys

Please help

I am UK on vodafone and want to wipe the phone with a NON BRANDED latest firmware...I have downloaded LGUP and it see's everything fine. i have downloaded H81520C is this the right firmware for me please??? I am currently on H81510D do i click "Ugrade" or "Refurbish"

please help
[G4 Q&A, Help & Troubleshooting] goran_oh:
Download latest firmware 20d and use Refurbish.
[G4 Q&A, Help & Troubleshooting] phooeyman:
Many thanks bud.... so is there a generic no branded 20d available please??
[G4 Q&A, Help & Troubleshooting] goran_oh:
20d its no branded[emoji6]
[G4 Q&A, Help & Troubleshooting] phooeyman:
Cheers bud...

s this the one Europe http://storagecow.eu/index.php?dir=Xda/LG+G4/H815/
[G4 Q&A, Help & Troubleshooting] goran_oh:
This one ,download kdz only http://downloads.codefi.re/autoprime/LG/LG_G4/H815/H81520D/
[G4 Q&A, Help & Troubleshooting] phooeyman:
Also does not find the KDZ file under refurb in LGUP finds it in UPGRADE???
[G4 Q&A, Help & Troubleshooting] Luc989:
When you put .kdz at LG UP, close LGUP, select refubrish and start

Poslano sa mog LG-H815 koristeći Tapatalk
[G4 Q&A, Help & Troubleshooting] phooeyman:
Hi

I see so click upgrade then find the KDZ file then click refurb then start??? Thanks for your time
[G4 Q&A, Help & Troubleshooting] _dsouza_:
LGUP Unknown Model

EDIT:

problem solved

removing everything (LG Bridge, Drivers, LGUP), rebooting the PC and reinstalling drivers and LGUP.

Has anyone experienced this problem?

I am on Russian v20a, and I want to downgrade back to the stock version (Brazilian v10c) for the LG G4 Dual Sim (H818P).

However I am stuck at this point and cannot install any KDZ anymore... :crying:

I also tried the old method (LG Flash Tool) which also fails right before start flashing the file...

I will really appreciate any tip or advice...

Thanks!

EDIT: Here is the log. The XXXXXXX is the portion I edited to remove my Phone's serial number.

[10:21: 1] Start Find Available USB Port
[10:21: 1] Find 0 LGE AndroidNet USB Serial Port (COM19)
[10:21: 1] CBasicComControl::eek:pen, the port(COM 19) is constructed successfully => HANDLE : 0x280
[10:21: 1] CPort::eek:penPort() Success. Port number is 19
[10:21: 1] [T000003] 41 54 0D AT.
[10:21: 3] CBasicCom::SendRecvPacket, PACKET_ERROR code = 1460 Msg => This operation returned because the timeout period expired.
[10:21: 3] [T000005] EF 00 16 65 7E ...e.
[10:21: 3] [R000007] EF 00 00 05 00 AD 7E .......

[10:21: 3] [T000005] EF A0 1C C0 7E .....
[10:21: 5] [R000150] EF A0 00 00 00 00 00 4C 47 2D 48 38 31 38 50 00 00 48 38 31 38 32 30 61 00 00 00 00 00 00 00 00 .......LG-H818P..H81820a........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 XX XX XX XX XX XX XX XX XX XX XX XX XX X XX 00 ................XXXXXXXXXXXXXXX.
00 00 00 00 60 1E 41 6E 64 72 6F 69 64 00 00 00 36 2E 30 00 00 00 00 00 00 00 30 30 30 30 30 30 ....`.Android...6.0.......000000
30 30 30 30 30 00 00 00 00 02 00 CB 5A 00 00 E2 58 00 00 00 00 00 00 00 00 00 00 30 00 00 00 00 00000.......Z...X..........0....
00 00 00 00 00 4F 50 45 00 00 00 00 00 00 00 00 00 00 00 4F 0D 7E .....OPE...........O..
[G4 Q&A, Help & Troubleshooting] phooeyman:
Cheers guys got it done ONLY thing is the Vodafone crap splash screen still come up!!!!! any idea how i can get rid of this please??? was the main reason i wanted a generic firmware to debrand it!!
[G4 Q&A, Help & Troubleshooting] freestyle_gus:
USB issues - maybe a solution for some

For those who have been having trouble getting LGUP to see their handset. Here was my experience. None of the tips in the OP worked for me.

LG Bridge, installed on my machine - wouldn't see handset.

LG support tool - wouldn't see my handset.

LGUP - yes, you guessed it wouldn't see my handset!

I tried the 'battery pull' method... this didn't work :(

What worked for me, was the following.

1- Uninstall all instances of LG software on your PC. This includes any USB drivers that my have previously been installed (they will show up in your installed programs).

2- Now install the specific USB drivers for the LG G4. plug in the usb cable, make sure you have selected MTP on the connection settings.

Your G4 should appear as accessible drives on your machine. Then you should receive a message on your phone screen asking if you would like to install the USB drivers. Tap yes/okay. (if you don't get this message there is the option on the little 3 dot menu top right of the connection options screen on the G4)

Now a little install dialogue will appear on your PC. Let it complete.

3- install the LGUP DLL, then when that has finished install the LGUP app itself. Let that complete.

4- Connect the USB cable, THEN open the LGUP app. Your device should now appear... if it does breathe a big sigh of relief.

5- select your KDZ file and drag to the LGUP window with BIN selected... select upgrade or whatever and go and make a cup of tea.

Hope this works for you!

:D
[G4 Q&A, Help & Troubleshooting] phooeyman:
Guys can i remove the splash start screen without rooting please?
[G4 Q&A, Help & Troubleshooting] goran_oh:
Vodafone logo?or
[G4 Q&A, Help & Troubleshooting] ursulavasey:
I got my Marshmallow KDZ file from the link below. The link has been temporarily removed, but hopefully it will be back at some point. I used this download with LGUP, to debrand my Vodafone LG G4, and update to Marshmallow, both at the same time.

http://xdaforums.com/g4/development/android-6-0-update-kdz-h815-t3232240
[G4 Q&A, Help & Troubleshooting] juannicolas:
What REFURBISH process do? I had my LGG4 running V10F-SEA and updated to V20D-OPT2 but i selected UPGRADE. What is the difference between those two options?

Edit:

I think I got it. Refurbish will wipe whole phone in the process and Update, well exactly that. :P
[G4 Q&A, Help & Troubleshooting] galvanius:
ERROR on flashihg Lg up

Hi guys, i'm trying to go out from MM to LP, i have see and do all steps in guide, but i receive strange error when flashing.

The only thing i have not do is install driver from your link (i have the latest from lg site)

I'm on Lg g3 d855 :

install all dll, Lg Up see my Lg 3 in right way...go on all step.. and see error : (mhmhm i've not 10 post for post link) error say :

error : [16.20.43] EXCE

Packet error no :

0X 8000010a

FIXED : many thanks to italian forum : put kdz file in LG UP directory... only this!

But why?!?! Maybe is not the right driver?
[G4 Q&A, Help & Troubleshooting] juannicolas:
Is this version Europe H81520C_00_1218.kdz better than this one H81520D_00_0115.kdz ???? I know H81520D_00_0115.kdz is latest but sometimes latest firmware is not the best firmware.
[G4 Q&A, Help & Troubleshooting] goran_oh:
For me 20d its better.
[G4 Q&A, Help & Troubleshooting] phooeyman:
Guys i am having major issues with the LED notifications and want to go back to lollipop as im on 20d including MM how do i do this please using LGUP
[G4 Q&A, Help & Troubleshooting] juannicolas:
Just Download your *kdz file and do a REFLASH process with the LGUP, you will loose all your data on the way so make sure to do a backup first. BTW, please read the OP for the instructions on how to downgrade, they are very easy and self explained.

EDIT: BTW, I did installed 20D on mine and did not have any issues with the led or other in particular than the mnc/mcc popup. But that did not affected the functionality of the phone.
[G4 Q&A, Help & Troubleshooting] phooeyman:
Sorry guys where do i get the LP KDZ from please for 20d UK phone??

---------- Post added at 12:38 PM ---------- Previous post was at 12:35 PM ----------

Hi mate

Sorry yes seen that on the OP , BUT no links to the LP file sorry. Well i cannot seem to get ANY LED notification to work!! on email or gmail, text, whats app, facebook etc in fact most things. I even installed and paid for the light flow app and that didnt work either very strange.
[G4 Q&A, Help & Troubleshooting] juannicolas:
in the OP is the link for at least all the KDZ available to download, again, please read or do a better search next time, I promise you will find the info you are looking for.

http://storagecow.eu/index.php?dir=Xda/
[G4 Q&A, Help & Troubleshooting] phooeyman:
Thanks but you will find that your link does NOT show a LP KDZ a MM one yes but no LP
[G4 Q&A, Help & Troubleshooting] juannicolas:
I'm sorry, I quoted the wrong information. Here is the link

http://storagecow.eu/index.php?dir=Xda/
[G4 Q&A, Help & Troubleshooting] phooeyman:
Lol thats the same link???? Which of the files under United kingdom is the LP KDZ please??
[G4 Q&A, Help & Troubleshooting] juannicolas:
All of them..

H815 V10 = LP

H815 V20 = MM

I only have 5 days with my LG G4 H815 and know all that stuff by reading. I bet you could do the same ;)
[G4 Q&A, Help & Troubleshooting] phooeyman:
mmmmm ok i don't know if this is getting lost in translation...and thank you i do read, BUT where on there does it mention anything about V20 or V10 in that list OR under Uk??

---------- Post added at 05:44 PM ---------- Previous post was at 05:42 PM ----------

Under UK in the list, nothing with reference to LP!!! Sorry if you don't know its no problem.
[G4 Q&A, Help & Troubleshooting] TonyStark R.I.P.:
All three of those are lolli. When it goes to 20 it is MM
[G4 Q&A, Help & Troubleshooting] phooeyman:
Many thanks, sorry for the questions i have read through this thread and could not find the answers...most relate to non UK reference. I see now i had 10d on before with LP so i need to flash the Europe open 10d??? that should get me back to where i was before???
[G4 Q&A, Help & Troubleshooting] Lonzo_SGS2_506:
Yes mate. Simple as that.
[G4 Q&A, Help & Troubleshooting] G4ZERO:
my phone dosnt reboot when the LgUP Says "reboot 150 sec"... haha, really reboot inmediately and dont stop reboot.

help! i dont know how to write english, but i understand all the things you wrote.

I am from argentina, and bought the phone in amazon. Please Help, and sorry for the brutality of my expresions.
[G4 Q&A, Help & Troubleshooting] stinka318:
Ok followed this and DON'T work it cost me $30 worth of data on my pre payed account every thing I try fails ****en driving me nuts.
[G4 Q&A, Help & Troubleshooting] Looloup:
I got bored waiting for the OTA update, so I updated my un-rooted / stock H815 (V10h-HKG) to V20c-OPT2-HQ with no problems at all .

It is the first time I have fiddled with this phone (previously I had a Nexus 4 which got flashed quite a lot).

Everything seems to be working OK,
[G4 Q&A, Help & Troubleshooting] TonyStark R.I.P.:
What device do you have?

What software are you coming from and going to?

What doesn't work?
[G4 Q&A, Help & Troubleshooting] goran_oh:
[MENTION=990284]TonyStark[/MENTION] try 20E works great on h815 twn[emoji6]
[G4 Q&A, Help & Troubleshooting] TonyStark R.I.P.:
Link please
[G4 Q&A, Help & Troubleshooting] goran_oh:
https://docs.google.com/uc?id=0B6gCMl5Qk1ZNQ19YVzhFS2ROXzA 20E H815 KDZ
[G4 Q&A, Help & Troubleshooting] juannicolas:
Installed 20E and os working fine for now, battery need to let it settle for few days to see is better or not. Btw, MMC/MCC msg is gone
[G4 Q&A, Help & Troubleshooting] Buckycasuals:
After upgrading to MM using LGUP. Software update gives me the following message when i tried to check for update: Could not connect to update-server. Please check network connection and try again.

everything was working properly before the update.
[G4 Q&A, Help & Troubleshooting] stinka318:
Sorry folks got it all working download a kdz file and it was in txt format had to change it on device for it to work.

For the record this make Samsung stuff look boring on LG g4.

So I was on h815t v10e but now on h815 v20a.
[G4 Q&A, Help & Troubleshooting] Looloup:
I spoke a little too soon ... everything seems to work except that in the Dialer/Call Log - the Contacts information is no longer picked up - so all numbers show as Unsaved Number .... also no incoming caller ID.
[G4 Q&A, Help & Troubleshooting] jcmata:
Hello friends:

some screenshot of the new version V20E .. ??

Cheers,

JC
[G4 Q&A, Help & Troubleshooting] juannicolas:
It seems battery consumption is much greater with this 20E than 20C or later 10F(for my version)
[G4 Q&A, Help & Troubleshooting] jcmata:
V20e is TWN o EUR ...????

Gracias! THX

JC
[G4 Q&A, Help & Troubleshooting] goran_oh:
V20e is EUR.
[G4 Q&A, Help & Troubleshooting] jcmata:
ok, ok, then play wait ... a question, ask a friend who is the most suitable version .. ?? It has a H815, purchased is EUR noo USA ... but he is, as I understand would be the version TWN ..

thanks and regards,
[G4 Q&A, Help & Troubleshooting] cnsngr:
i downgrade my h815t from20b to 10b-hkg but my device wont pickup any ota updates anyone can help me??
[G4 Q&A, Help & Troubleshooting] otcd:
Installation of V20e brought to: V20e-OPT2-HQ

Any idea on this?
[G4 Q&A, Help & Troubleshooting] Alecs_Tm:
That v20e version is for Orange Carrier. So i think that message tell's you that the firmware you have installed is not a free eur-xx and is designed for Orange. But you can still install it and use it without problems.

Ps: when i flashed the v20e Orange,Lg Bridge gave me : " Lg Bridge-Backup is not supporting your phone" after that i flashed v20c Eur-Xx non-carrier and that warning was gone.
[G4 Q&A, Help & Troubleshooting] _dsouza_:
Interesting...

Does it mean that the Russian version "V20c-DS1-HQ" is also tied to any specific carrier?
[G4 Q&A, Help & Troubleshooting] Alecs_Tm:
Look,i am not saying this is it! That's my ideea! I'm not sure.

And about the russian version i can't tell.
[G4 Q&A, Help & Troubleshooting] Vseprz:
Is there any way to modify the /cust/OPEN_COM/cust_OPEN_EU.prop if I am unable to boot due to a secure boot error? I need to use the tool to flash back but am unable to due to having a unknown model. Thanks for any advice
[G4 Q&A, Help & Troubleshooting] neobdium:
can anyone provide me with H81510f kdz (eur)
[G4 Q&A, Help & Troubleshooting] goran_oh:
Waiting 20D twn kdz anyone?
[G4 Q&A, Help & Troubleshooting] thegame4ever:
hey guys i am using H815P which one i use H815P10e or H815P10g and those are mm?? srry didn't try to flash anyhing on LG my version is UAE one
[G4 Q&A, Help & Troubleshooting] goran_oh:
Nope 10e，10g are lp.
[G4 Q&A, Help & Troubleshooting] thegame4ever:
thx bro :)
[G4 Q&A, Help & Troubleshooting] thegame4ever:
man i flashed the 10e kdz and i am still on lp !!!
[G4 Q&A, Help & Troubleshooting] goran_oh:
And?
[G4 Q&A, Help & Troubleshooting] thegame4ever:
man u said that 10e is the marshmallow one and after flashing it's still on lollipop !!
[G4 Q&A, Help & Troubleshooting] kevtrysmoddin:
20e is marshmallow
[G4 Q&A, Help & Troubleshooting] thegame4ever:
but H815P last version is 10
[G4 Q&A, Help & Troubleshooting] goran_oh:
Man if you read what I write you see that 10e and 10g its LP not MM.
[G4 Q&A, Help & Troubleshooting] thegame4ever:
i think i didn't understand well but anyway after flashing kdz i keep getting OTA updates which i didn't get any before so how do i get the marshmallow kdz for my H815P??
[G4 Q&A, Help & Troubleshooting] R3AP3RK1NG:
Any Chance to...

Hello, is there a chance to get a *PRE-ROOTED* MM Stock-ROM?

I want to prevent the Bootloader to get Unlocked.... this is my most greatest interest!
[G4 Q&A, Help & Troubleshooting] thegame4ever:
k now there is an update of 25 august 2015 it's 77 mb everytime i try to download it it just freeze at 0 mb

and is there any kdz for marshmallow?
[G4 Q&A, Help & Troubleshooting] cashflow67:
[MENTION=3497790]shakeyabooti[/MENTION] Can you give adb folder link? I have installed adb and other drivers. But I didn't understand how to command adb folder? Where is this adb folder?
[G4 Q&A, Help & Troubleshooting] seadersn:
omg... folks, pls READ and INFORM YOURSELF before trying to rape your phone... nothing more to tell from my side, sry ;)

edit: ouch... this was a little harsh, sry. was in a bad mood yesterday ;) but in principle the sentence above is true, unfortunately :(
[G4 Q&A, Help & Troubleshooting] imran.khalil:
There is no device connected error all the time

Hi everyone i am trying to flash sotck kdz but when ever i run LGUP tool it says there is no device connected, in fact device is connected prior to running this tool. i have tried restarting the device while phone is connected but no use. did anyone face such issue? or any fix?
[G4 Q&A, Help & Troubleshooting] freestyle_gus:
Have you tried the approach in my post here - http://xdaforums.com/g4/help/lgup-install-kdz-mm-lp-t3249803/post65007380#post65007380

It worked for me :good:
[G4 Q&A, Help & Troubleshooting] imran.khalil:
yeah i tried this one uninstalled drivers and installed one specifically made for d855. but problem persists :(
[G4 Q&A, Help & Troubleshooting] Ruxst:
is there a fix for the unknown device problem? with no root?
[G4 Q&A, Help & Troubleshooting] Royyx:
Is my phone bricked? I have boot error 1003 and it bootloops. So I put it in download mode but no matter what drivers I try or anything LGUP says unknown devices
[G4 Q&A, Help & Troubleshooting] ..alee:
I have LGUS991 and using it on Fido netowork in canada. It was working fine till i get MM update and now my data isn't working. I am thinking to downgrade to LP by following this guide. I have a question.

I do see the KDZ here (http://storagecow.eu/index.php?dir=Xda/LG+G4/US+Cellular+US991/) ... ... The one thing that I am hot sure is that it say 10C at the end. Does this part of the version matter ? How can i make sure i have the same version or what version i have.
[G4 Q&A, Help & Troubleshooting] cvf14:
android m

Hi, I have the same problem with LG G4 that has described a user in another forum.

---Hello, my G4 has a problem in volume. When watching videos or listening to music,

I turn up the volume and suddenly it starts to go down alone and is very quietly sound.

It may even be a problem in speaker / speaker or sound card (???), since both video or music,

or any media to be played in any audio application starts ringing with the sound normal, high,

but in less than 5 seconds it is extremely low. They know of something similar ?? Thank you!

It happened to me after upgrading to Android m, I made a recovery, but the problem persists.

I installed lollipop and audio functions normally