Develop Bugs

[Q] root lg g3 european version

hey guys. i'm a new comer to this forum and a i'm gonna root my lg g3 european version first in my life. so i don't have any experience about rooting the android mobile. so i came here to know something please give me a fully explainable thread about how how to root lg g3 european version. before i tried the purpledrake root method but it isn't work. after that when i install the supersu and then run it, it said an error like this "there is no any super user. " please let me know how to do this as a proper way thank you

conan_hacker said:
hey guys. i'm a new comer to this forum and a i'm gonna root my lg g3 european version first in my life. so i don't have any experience about rooting the android mobile. so i came here to know something please give me a fully explainable thread about how how to root lg g3 european version. before i tried the purpledrake root method but it isn't work. after that when i install the supersu and then run it, it said an error like this "there is no any super user. " please let me know how to do this as a proper way thank you
Click to expand...
Click to collapse
Please tell me
1) Your software version
2) Did you buy it locked to any carrier
3) What country you bought it from

itsbighead said:
Please tell me
1) Your software version
2) Did you buy it locked to any carrier
3) What country you bought it from
Click to expand...
Click to collapse
1 software version V20F-234-20
2 that mobile is unlock for all carrier
3 i bought it from UK and now i'm using it in Sri lanka

conan_hacker said:
1 software version V20F-234-20
2 that mobile is unlock for all carrier
3 i bought it from UK and now i'm using it in Sri lanka
Click to expand...
Click to collapse
You can downgrade to KitKat using this Stock unbranded UK KDZ below. Use CSE flash mode within LG Flash Tool 2014 to downgrade
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW047806432109876543213/D85510L_00.kdz
Then root with purpledrake and flash twrp

simple question
itsbighead said:
You can downgrade to KitKat using this Stock unbranded UK KDZ below. Use CSE flash mode within LG Flash Tool 2014 to downgrade
Then root with purpledrake and flash twrp
Click to expand...
Click to collapse
what did you mean by that
unbranded UK KDZ
please explain me much more about this

itsbighead said:
You can downgrade to KitKat using this Stock unbranded UK KDZ below. Use CSE flash mode within LG Flash Tool 2014 to downgrade
Then root with purpledrake and flash twrp
Click to expand...
Click to collapse
i don't know how to use this please give me a thread or something how to use this

conan_hacker said:
i don't know how to use this please give me a thread or something how to use this
Click to expand...
Click to collapse
Dont worry about that. Just follow the instructions here http://forum.xda-developers.com/showthread.php?t=2797190

conan_hacker said:
i don't know how to use this please give me a thread or something how to use this
Click to expand...
Click to collapse
It might be a good to start reading up about rooting your phone, look in the General forum for many usefull threads. XDA is not the place that is meant for spoonfeeding and roomservice If you have questions after that feel free to ask them but don`t expect others to solve your problem.

LG Spirit H440N/H440Y/H422/H442F Stock ROM List

I created this thread to link all stock ROM's for LG Spirit, namely H440N, H440Y, H422 and H442F variants of it.
If you have any question ask it in LG Spirit General Thread (author @polfrank ) - http://forum.xda-developers.com/android/development/lg-spirit-h440n-thread-t3108435
All ROM's should be listed from newer to older so be warned. Also whenever I can,I would write from which mobile operator it is and from which country.
H440N
Marshmallow based ROM's
v20a_00 [Poland Marshmallow] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW4CUT3552TLAY871EAEID2/H440n20a_00_0428.kdz
How to install Marshmallow ROM's - http://forum.xda-developers.com/android/development/guide-how-to-install-marshmallow-kdz-lg-t3385476
Lollipop based ROM's
v10h_00 [Hungary, Unbranded, Open Europe/Poland/Holland/Germany/Spain/Greece] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW79IQH2328PA0G274D8UMW/H440n10h_00.kdz
v10f_00 (v10f_EUR_XX in Software info) [Hungary, Open Europe, unbranded] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW4B6RT132E1A4WD5081A3H/H440n10f_00.kdz
v10f_00 [Portugal/Switzerland] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW4BKUG13267AM42E0811ZR/H440n10f_00.kdz
v10f_00 [Germany, ADEU] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW3BG5B132EZAHJ45881BGX/H440n10f_00.kdz
v10f_00 [Italy] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW3B44N132P8AD92CE81DDF/H440n10f_00.kdz
v10c_00 [Croatia, T-Mobile] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW77AH6132L8AYSD58C1867/H440n10c_00.kdz
v10c_00 [Poland, P4] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FWE1DUE132UQAI9494F0YNI/H440n10c_00.kdz
v10c_00 [Poland, Plus] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FWE1DUE132UQAI9494F0YNI/H440n10c_00.kdz
v10e_00 [Italy/Switzerland/Poland/Greece/Spain/Germany, named v10b in About Phone] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW79RCO032ESAYF6BB4BMEM/H440n10e_00.kdz
v10a_00 [Croatia, T-Mobile] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW33PUN032XFAE2DDD20S6M/H440n10a_00.kdz
H440Y
v10d_00 [Taiwan, ATWN] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FWEAZ7O132ATALD36A71MSP/H440Y10d_00.kdz
H422
v10f_00 [India, AIND] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FWCDJY11327KABC2755160O/H44210f_00.kdz
v10d_00 [Russian Federation/Kazakhstan/CIS] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FWF83JG032Z3A0X4505B9EE/H42210D_00.kdz
H442F
v10b_00 [Brazil] - http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW44Z8B0323VAUU3D5AB8P5/H442f10b_00.kdz

Changelog
Update #1 (20.06.2015 @ 3:05 CEST)
Started thread
Added v10c_00 based firmwares on list
Added other kdz files from General thread

I would like to ask:
If anyone has done the update via OTA it would be nice to see the changelog and know what's new and if an update is worth the time.

Changelog
Update #2 (20.6.2015. @ 21:34 CEST)
Added v10f_00 Indian kdz for H422 variant of device
_______________________________________________________________________________________________
@polfrank yeah it would be nice to see what are changes, but unfortienatly I can't see that because I'm pulling kdz files from few trusted sources which don't say what is new

Are these kdz files derived from the LG site using IMEI codes?

Changelog
Update #3 (25.6.2015. @ 22:03 CEST)
Added support for H440Y ROMs
Renamed thread to add support for H440Y phone
Added v10d_00 Taiwanese ROM to list at H440Y variant of phone
_________________________________________________________________________________________________________________
@ShinOrochiX seems that all kdz files are collected via IMEI code from LG site and all should work great no matter of your IMEI
Also if somebody find newer variant of ROM for any of named devices in first post and in thread name contact me via PM or post link here in thread so I can edit #1 post

Changelog
Update #4 (27.06.2015 @ 14:03 CEST)
Added v10f German firmware for H440N
Added v10f from unknown country ( Credits: @deni-brasco for submitting it in General thread, but next time please write from which country it is)

This is H440n Portugal/Switzerland edition:
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW4BKUG13267AM42E0811ZR/H440n10f_00.kdz
The one provided by deni-brasco is H440n Italy edition.

Changelog
Update #5 (27.06.2015 @ 17:18 CEST)
Added v10f firmware from Portugal and Switzerland (same kdz), thanks @polfrank for giving it
Updated v10f from Unknown country to Italy, same thing go to polfrank and again thanks deni-brasco for submmiting it.

Testing v10f Italy right now. Everything works as expected, root, xposed etc.
It says v10c at the settings.

polfrank said:
Testing v10f Italy right now. Everything works as expected, root, xposed etc.
It says v10c at the settings.
Click to expand...
Click to collapse
Upgrade or clean install? I mean CSF Flash or Normal Flash via LG Flash Tool? I ask that because I want to do Normal flash without wiping anything (it is annoying to set up 5 different e-mail addresses for 5 different things like college, private, hangouts, youtube etc)

midzan21 said:
Upgrade or clean install? I mean CSF Flash or Normal Flash via LG Flash Tool? I ask that because I want to do Normal flash without wiping anything (it is annoying to set up 5 different e-mail addresses for 5 different things like college, private, hangouts, youtube etc)
Click to expand...
Click to collapse
Normal flash. It keeps all your data with no problem. You just have to reroot and set xposed again.

LG Spirit H440N Stock rom
Hello everyone.
I have a sim free LG Spirit H440N handset. I got it free of charge from 3UK, who sell all their phones unlocked. Unfortunately, it has a 3 splashscreen on boot, and other 3 stuff built in. Is there a stock rom available, that has none of the 3 bloatware in it? If so, where is it, and how do I flash it? I would rather not root the phone if I can help it; although I will do so if it is necessary. Is there a method to return it back to the 3 version, if necessary? I have rooted phones before, and installed custom roms, etc; but not for a while. I thank you in advance for any help you may be able to offer me.

ursulavasey said:
Hello everyone.
I have a sim free LG Spirit H440N handset. I got it free of charge from 3UK, who sell all their phones unlocked. Unfortunately, it has a 3 splashscreen on boot, and other 3 stuff built in. Is there a stock rom available, that has none of the 3 bloatware in it? If so, where is it, and how do I flash it? I would rather not root the phone if I can help it; although I will do so if it is necessary. Is there a method to return it back to the 3 version, if necessary? I have rooted phones before, and installed custom roms, etc; but not for a while. I thank you in advance for any help you may be able to offer me.
Click to expand...
Click to collapse
Hi,
I also have the Three customised firmware-I don't like it either. There is a way to download the firmware, check here. As for firmware without Three's crap in it we'll have to wait for a non-network UK retailer to list it, then if we can get an IMEI, be it from a store display unit, we can download and flash that firmware (when it becomes available). But I don't know if anyone other than Three will sell it, Three has had it for about 2 months even though it was exclusive to them only for 1 month.

ShinOrochiX said:
Hi,
I also have the Three customised firmware-I don't like it either. There is a way to download the firmware, check here. As for firmware without Three's crap in it we'll have to wait for a non-network UK retailer to list it, then if we can get an IMEI, be it from a store display unit, we can download and flash that firmware (when it becomes available). But I don't know if anyone other than Three will sell it, Three has had it for about 2 months even though it was exclusive to them only for 1 month.
Click to expand...
Click to collapse
Thanks ShinOrochix. So nothing to do but wait then. There's no need for the stuff that 3 put in the phone firmware. It doesn't have a huge memory to start with, and these extra files are just an unnecessary inconvenience.

ursulavasey said:
Thanks ShinOrochix. So nothing to do but wait then. There's no need for the stuff that 3 put in the phone firmware. It doesn't have a huge memory to start with, and these extra files are just an unnecessary inconvenience.
Click to expand...
Click to collapse
Yeah, useless bloatware. I just got rid of some of it but am stuck with the bootscreen, rather not root the device yet. As for memory, your right, with all my stuff installed I got just under 2GB free, had about 4GB on my previous Xperia-but who's to complain, the Spirit is a great phone.

I'm in the same boat as you. I debloated as much as I could, but I can't get rid of the bootscreen. The 3 logo sits there for ages. I downloaded a couple of boot animation changer apps, but they didn't work. Perhaps the apps were set to look in the wrong location for the stock boot animation. More investigation needed into the phone's file structure, I reckon.

Hi, I'm Italian and I bought this phone today. On "ABOUT PHONE" I can read version "V10C" but I don't know if is really V10c, or v10f. I want only a stock italian firmware NO BRAND!!! I hate all that apps by TIM!!!
Which firmware do you suggest me???

Hi guys, I have found this site......can be useful???
http://lg-phone-firmware.com/index.php?id_mod=168

Hello. In this site it is being claimed that there is a v10d version of the firmware for LG H440N. (I know the picture of the phone is wrong, but it seems they got it right on which smartphone they're talking about...)
http://www.hanfei.name/kdz-download...-v10b-v10c-v10d-v10e-v10f-stock-firmware.html
In gaodi.net there has been a V10d version a while ago but it was only in some weird versions like Spain Orange, Portugal Orange, Poland Optimus (see here) so I haven't tried it. Has anyone tried it? Is it really v10d or is it like the others, where v10e=v10b and v10f=v10c ?? So maybe v10d is actually v10a??

Canadian H812 Root

Hello Everyone,
Please forgive me if this topic is elsewhere, but I am hoping to get some assistance from the community. I have been searching for a method of obtaining root on my Canadian Bell LG G4 H812 running Marshmallow.
I saw a few methods before Marshmallow rolled out to Canadian Carriers involving extracting system image, injecting root, and replacing the system image on my device. I figured, when MM rolled out, there would be a better method found of doing this, but to my dismay, it now appears to be impossible on MM.
Can anyone confirm if root can be obtained on this device?
I am willing to downgrade to Lollipop to make this happen
Why is there little to no development for this model?
Is the model interchangeable with another LG G4 that root /unlocked bootloader has been found on?
Can anyone possibly offer a noob-friendly guide on doing this?
Please note, I am completely willing to downgrade to lollipop in order to make this happen as I rely on some apps that require root, and some that rooting makes the app more functionsl (Trimmer, greenify, xposed, Titanium Backup to name a few)
I have successfully rooted and unlocked many phones in the past (Motorola Milestone, HTC Desire Z, HTC Amaze, HTC Raider LTE /Vivid, Galaxy S2/3/4, Galaxy Note 2/3, LG G3) but for the first time in my rooting life, I not only feel completely unsure about the process, but I feel pretty uneasy. A lot of the guides that I found for injecting root into the system partition and re-flashing seemed incomplete or broken, and were not published on XDA, so I stayed clear of them.
Thanks everyone in advance.

If you find simple way to root H812 with android 6 let me know!

pace666 said:
If you find simple way to root H812 with android 6 let me know!
Click to expand...
Click to collapse
Not currently possible.

Eagle1337 said:
Not currently possible.
Click to expand...
Click to collapse
Hi thanks for the answer. I am just curious why it's not possible? I'd love to read a detailed explanation. I will never buy a device that locks me out to this degree. I am very upset with this. Thank you

905jay said:
Hi thanks for the answer. I am just curious why it's not possible? I'd love to read a detailed explanation. I will never buy a device that locks me out to this degree. I am very upset with this. Thank you
Click to expand...
Click to collapse
The exploit used has been fixed on mm

I will receive my G4 from Rogers in 2-3 days, what do you think will be on it? Lollipop or MM ?
Thank you
Daniel

could someone point to a forum, or provide some details as to why this is not possible?
will this be how all phones are made going forward?
I can't wrap my head around not being able to do this, and would just love some reading as to why it is not possible, and what to look out for when buying a new device that is not a Nexus.

Eagle1337 said:
The exploit used has been fixed on mm
Click to expand...
Click to collapse
could someone point to a forum, or provide some details as to why this is not possible?
will this be how all phones are made going forward?
I can't wrap my head around not being able to do this, and would just love some reading as to why it is not possible, and what to look out for when buying a new device that is not a Nexus.

The exploit used on Lolipop was by way of inserting the Su root binary and whatever other mods are needed into a system image and then writing it to the phones memory. This trick or exploit used to boot the phone into a state where you could write a new system image was fixed on Marshmallow. There is another trick that I see on the USA variant subforums for the G4 where you pull the USB cable out during an update exactly when it hits a certain percent to get the phone in the exact same state but it doesnt hepl with root anyway.
Marshmallow had changes to it which prevents rooting by simply changing the system partition (not sure exact details) which is why we have the systemless root now. Systemless root requires modifications that will not work with bootloader locked phones. No bootloader unlock has been made available for the G4 so not possible to root MM.
Check out the Canadian G4 thread in the general subforum.

My koodo h812 bought a few weeks ago came with marshmallow out of the box. Build date was July, sn607

If you want to root your new G4 you'll have to downgrade to LP. Check the Canadian H812 thread in the General forum for more details and use LG UP program to flash the KDZ. Mine came with MM from Rogers and it was pretty simple to downgrade.

I don't know how long I can resist the urge to root. My only real issue with it stock is the crappy battery life. There is no excuse for my old moto x with a way smaller, 2 year old battery lasting double the screen on time. I'll probably take the risk on the warranty because I'll always have a backup phone.

ReeS86 said:
If you want to root your new G4 you'll have to downgrade to LP. Check the Canadian H812 thread in the General forum for more details and use LG UP program to flash the KDZ. Mine came with MM from Rogers and it was pretty simple to downgrade.
Click to expand...
Click to collapse
do you mind sharing your step and the link to downgrade your canadian h812
thanks

ReeS86 said:
The exploit used on Lolipop was by way of inserting the Su root binary and whatever other mods are needed into a system image and then writing it to the phones memory. This trick or exploit used to boot the phone into a state where you could write a new system image was fixed on Marshmallow. There is another trick that I see on the USA variant subforums for the G4 where you pull the USB cable out during an update exactly when it hits a certain percent to get the phone in the exact same state but it doesnt hepl with root anyway.
Marshmallow had changes to it which prevents rooting by simply changing the system partition (not sure exact details) which is why we have the systemless root now. Systemless root requires modifications that will not work with bootloader locked phones. No bootloader unlock has been made available for the G4 so not possible to root MM.
Check out the Canadian G4 thread in the general subforum.
Click to expand...
Click to collapse
I was in this situation with my Canadian G4 (H812).. fortunately I traded it for the european H815 .... I made the right choice I feel. It's got unlocked bootloader, unlocked carrier, no service provider bloatware, and ALL the original LG apps running perfectly (including the FM radio and SmartWorld)
It's beautiful. Anyway there is a guy called SteadFasterX he is working on a custom bootloader called EFIdroid for LG G4 devices with the default bootloader locked. So we are bypassing LG's bootloader and giving control to the EFIdroid bootloader. He is also working on a project called TWRP-in-FISH which lets you boot anything using a LOCKED bootloader. So go check it out and pray, or trade it in for the european version.

I was one of steadfasterX's early testers for FIsH. Unfortunately I think most users are unable or unwilling to shell out more money to buy the exact same phone they already have with different software that is more open. I will just use my LG G4 as long as it suits me and then likely never buy another LG phone unless they change their policy on unlocking.
I'm happy that you resolved your issue but telling others to buy a new phone won't earn you any friends along the way. Plus with the G4 bootloop issues you'd be crazy to buy a used G4 unless it's a really good price.

You really should do your homework a little more thoroughly ...
BIG_BADASS said:
I was in this situation with my Canadian G4 (H812).. fortunately I traded it for the european H815 .... I made the right choice I feel. It's got unlocked bootloader, unlocked carrier, no service provider bloatware, and ALL the original LG apps running perfectly (including the FM radio and SmartWorld)
It's beautiful. Anyway there is a guy called SteadFasterX he is working on a custom bootloader called EFIdroid for LG G4 devices with the default bootloader locked. So we are bypassing LG's bootloader and giving control to the EFIdroid bootloader. He is also working on a project called TWRP-in-FISH which lets you boot anything using a LOCKED bootloader. So go check it out and pray, or trade it in for the european version.
Click to expand...
Click to collapse
You really should do your homework a little more thoroughly (LOL) ... TWRP-in-FisH does not allow you to boot just anything. It allows you to boot a custom TWRP version ONLY, a version that will work with locked bootloaders.
EFIdroid in FisH (an ALPHA stage project), if successful, may ultimately allow one to boot custom roms. It does not modify the stock bootloader partition, i.e. it does not unlock it, it hijacks the boot process.
FisH is the project that allows you to boot potentially anything.
You're not helping anyone providing inaccurate, misleading information. Your only contribution to date seems to be telling everyone to sell their H812's and buy H815's - you've made your point (over and over, ad nauseam - hint, look it up) ...
Cheers,
S.

Here you go ...
silent_eve said:
do you mind sharing your step and the link to downgrade your canadian h812
thanks
Click to expand...
Click to collapse
For all those H812 owners coming across this post now ...
Here you go ... [Canadian Guide] - Complete Source for the LG G4 H812. Linux VM/Root/Tools&Files @ https://forum.xda-developers.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449
Do not use the root apps ... they won't work. Use the H81210 stock and rooted versions linked in the first post at the beginning of the Canadian guide site, they should work or you can search for both stock and rooted kdz's for your specific carrier. Use LGUP-NEW (https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803) to downgrade and upgrade the firmware on your LG G4.
Follow the Root ANY LG G4 Variant 100% Success Directives | Root Injection | Less Bricks (https://forum.xda-developers.com/g4/...-root-t3180586) ONLY for installing the rooted image (assuming you have obtained a pre-rooted image, otherwise, follow all to root the stock LP kdz you have obtained) -- use the command for the H812 model in the 2nd post here: https://forum.xda-developers.com/g4/...ot-lg-t3164765 found in the following box: Command to Flash System.img (All Variants) for installing the rooted image.
That should cover it.
S.

silent_eve said:
do you mind sharing your step and the link to downgrade your canadian h812
thanks
Click to expand...
Click to collapse
Down here
https://forum.xda-developers.com/g4/general/tutorial-root-lg-g4-bell-virgin-t3470511

ReeS86 said:
I was one of steadfasterX's early testers for FIsH. Unfortunately I think most users are unable or unwilling to shell out more money to buy the exact same phone they already have with different software that is more open. I will just use my LG G4 as long as it suits me and then likely never buy another LG phone unless they change their policy on unlocking.
I'm happy that you resolved your issue but telling others to buy a new phone won't earn you any friends along the way. Plus with the G4 bootloop issues you'd be crazy to buy a used G4 unless it's a really good price.
Click to expand...
Click to collapse
I have never had a bootloop ever..
---------- Post added at 05:40 PM ---------- Previous post was at 05:38 PM ----------
My new goal: Install Windows 7 or 8 or 10 (Desktop version) on my LG G4
---------- Post added at 05:55 PM ---------- Previous post was at 05:40 PM ----------
http://www.androidinfotech.com/2016/04/root-lg-g4-60-marshmallow.html
Guys check this out... they found a way to root H812 running Android 6.0 marshmallow

Wrong ... again ...
BIG_BADASS said:
I have never had a bootloop ever..
---------- Post added at 05:40 PM ---------- Previous post was at 05:38 PM ----------
My new goal: Install Windows 7 or 8 or 10 (Desktop version) on my LG G4
---------- Post added at 05:55 PM ---------- Previous post was at 05:40 PM ----------
http://www.androidinfotech.com/2016/04/root-lg-g4-60-marshmallow.html
Wrong ... again ...
The information posted on the link you've referred to is factually incorrect. The method, using Chainfire's Supersu Beta version SuperSU v2.79 SR3 requires a modification of the boot partition. It is simply not possible with the locked bootloader of the H812, i.e., you can't believe everything you read. The author does somewhat qualify with the statement: If the Root is Not Working in Your Variant Should Be Unlocked Before Root.
You've owned your LG H815 for how long ... ? LOL ... less than a week? Tick, tick, tick ... ILAPO!
Cheers again,
S.
---------- Post added at 07:04 PM ---------- Previous post was at 06:35 PM ----------
silent_eve said:
Down here
https://forum.xda-developers.com/g4/general/tutorial-root-lg-g4-bell-virgin-t3470511
Click to expand...
Click to collapse
Look at the "Note" .... on post # 7 in the link you provided to your OP. If you're going to take information from another OP (even if to lay it out more succinctly in your own words), give the reference to the site and credit to the original poster from where you got most of it in the first place ... Spudnubs' guide dates back to September 2015. Your OP dates a full year after the original ...
S.
Click to expand...
Click to collapse

Time to root my LG G4 H-815TR v20i. What do I do?

I have boringly used an LG G4 for almost two years now. Just after a few months of using it, I had the bootloop issue, LG gave me another G4 which I've been using for more than a year. But I believe it is time to unlock the true potential of my phone. I've transferred all my pics and vids and similar stuff to my computer, so now it's go time. The only thing is... I don't know what to do.
Model number: LG-H815TR
Android version: 6.0
Android security patch level: 2017-03-01
Kernel version: 3.10.84
Build number: MRA58K
Software version: V20i-TUR-xx
These are the info I think are relevant. I have no experience in rooting whatsoever. What do I do now? (an up-to-date detailed guide also works for me)

Hey,
I still need help for this.
I've checked online and couldn't find anything for H-815TR v20i running Marshmallow.
Can someone come to my rescue?

Ron298 said:
Hey,
I still need help for this.
I've checked online and couldn't find anything for H-815TR v20i running Marshmallow.
Can someone come to my rescue?
Click to expand...
Click to collapse
It's very easy:
You can't unlock your device because LG allows unlocking of the 815 international version and 811 only.
Marshmallow can be rooted on unlocked devices only (so not on yours).
If you really need root you need to downgrade to lollipop.
Downgrading to LL requires a compatible anti roll back version. Search the forum for the code which displays your current antirollback version and the how-to for downgrading and rooting LL
.
Sent from my LG-H815 using XDA Labs

Oh okay.
So I can't root my phone as is, I need to downgrade to Lollipop to do that.
Well I was thinking of flashing some custom ROMs and maybe underclocking for more battery life but given that this is my only smartphone I'd better stick to its current state then.

find the service menu for your phone. Google lg g4 service menu. call that number. check anti roll back version (last entry) if 0 you should be ok to downgrade, if not 0 downgrade will likely brick your device.
https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
read carefully and ask a any questions before using LGUP if unsure
after that you can root with https://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586
or upload your img file and kindly ask someone to root it for you and re-upload it

Anti-rollback version is 0.

Rootig h812 with rooted system.img

Hi,
I have an Lg G4 h812 with H1220z software version. Now i have a few questions someone needs to answer.
Can and how do i downgrade with a kdz from this site(http://bit.ly/2qR71rQ) and root using a h81210b image (http://bit.ly/2q2Rbve) without anything going sideways?
And can you upgrade to MM keeping root?
And if it IS not compatible, what is?
Help (and no things going sideways) would be appreciated

You'll find everything you need at ...
TheLatios381 said:
Hi,
I have an Lg G4 h812 with H1220z software version. Now i have a few questions someone needs to answer.
Can and how do i downgrade with a kdz from this site(http://bit.ly/2qR71rQ) and root using a h81210b image (http://bit.ly/2q2Rbve) without anything going sideways?
And can you upgrade to MM keeping root?
And if it IS not compatible, what is?
Help (and no things going sideways) would be appreciated
Click to expand...
Click to collapse
You'll find everything you need at ... [Canadian Guide] - Complete Source for the LG G4 H812. Linux VM/Root/Tools&Files
https://forum.xda-developers.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449
Read through everything carefully. You'll find everything you need if not in the OP, in the member posts. You cannot upgrade to MM and keep root and you cannot install any custom rom at this stage as the H812 has a locked bootloader that cannot be officially unlocked.
With steadfasterX's TWRP-in-FisH (https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048) you can install a customized version of TWRP recovery that will allow you to back up your complete phone.

sdembiske said:
You'll find everything you need at ... [Canadian Guide] - Complete Source for the LG G4 H812. Linux VM/Root/Tools&Files
https://forum.xda-developers.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449
Read through everything carefully. You'll find everything you need if not in the OP, in the member posts. You cannot upgrade to MM and keep root and you cannot install any custom rom at this stage as the H812 has a locked bootloader that cannot be officially unlocked.
With steadfasterX's TWRP-in-FisH (https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048) you can install a customized version of TWRP recovery that will allow you to back up your complete phone.
Click to expand...
Click to collapse
Thx for the info, but from what I see one question unanswered. Which images and KDZs are compatible with h1220z?

You will find most of ...
TheLatios381 said:
Thx for the info, but from what I see one question unanswered. Which images and KDZs are compatible with h1220z?
Click to expand...
Click to collapse
You will find most of ... the questions you are asking in the Canadian Guide I provided the link to. Try the search function for the site posts
You are looking for an H81210 for Lollipop. I would suggest H81210N or higher for your rooted image as it has the latest Stagefright vulnerability security update. You can however use for your stock Lollipop image a lower version, e.g. H81210H before flashing your rooted image. The only caveat is that you may want to use Rogers/Fido firmware if that is your carrier, otherwise you will lose voLTE.
Again, I suggest you read through the posts, search for answers in the Canadian Guide. It's all been covered there.
Addendum: Koodo is on the Telus network.