I'm kinda new at this and I need a little help with figuring out if I can actually root the lgg4 I bought? I've never bought anything from another variant other than the typical sprint, mobile etc.......so with that said......can I root this phone that's from us cellular? And if so can you point me in the right direction please.? My software information is lgus99120c
My model number is lgus991
Please help me
So far no root on MM. You will need to downgrade to LL with LGUP. Do research for your own model.
LG G4 us991 "unlocked"/ US Cellular
There is very little information on these G4 variations,
I am also struggling with this device. No real root method, mention of a couple custom and stock roms but no links,
Im running stock unrooted lollipop
Any real help would be greatly appreciated.
alphabitssoup said:
There is very little information on these G4 variations,
I am also struggling with this device. No real root method, mention of a couple custom and stock roms but no links,
Im running stock unrooted lollipop
Any real help would be greatly appreciated.
Click to expand...
Click to collapse
There is a brand new method for your device which can fully unlock it and so install even custom ROMs on it! Ofc rooting stock MM is no issue anymore for you then..
Just check out my PoC unlock thread in the g4 area!
This unlock method is based on ls991 (!!!!) firmware and so you should have no limitations. ("should" because no ls991 user tried it yet but it worked for other models where we had much higher risk of issues then with a ls991..)
.
Sent from my LG-H815 using XDA Labs
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
Hello, I want to downgrade my LG G4 (Software Version: H81220U) from Marshmallow to Lollipop so that I can root my phone. Could anybody guide me to achieve a downgrade AND a root? My carrier is Telus/Koodo in case it's relevant information.
Thank you in advance
syphlect said:
Hello, I want to downgrade my LG G4 (Software Version: H81220U) from Marshmallow to Lollipop so that I can root my phone. Could anybody guide me to achieve a downgrade AND a root? My carrier is Telus/Koodo in case it's relevant information.
Thank you in advance
Click to expand...
Click to collapse
first you need to nkow if tou can as in some models antirollback changes and makes it imposible to downgrade. so first make sure that antirollback versions they are if the same then you may if different then youll hard brick phone.
Hi @syphlect
Did you manage to downgrade it?
Have searched all the forums, did not find a way to root the LG G4 H1220u Koodo version.
let me know if you found any links
Use ...
Use ... LGUP - NEW ( https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803 ) to downgrade from MM to LP. You want H81210 for your Lollipop KDZ. Once you've done that, you can install a pre-rooted image (easier) or root your own extracted KDZ. Note: You will not be able to obtain root through any of the Root-Apps - check out the link in the next paragraph for the general how-to for the H812, if you have not already done so.
Refer to [Canadian Guide] - Complete Source for the LG G4 H812. Linux VM/Root/Tools&Files at: https://forum.xda-developers.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449 for the how-to on rooting the H812.
Follow the Root ANY LG G4 Variant 100% Success Directives | Root Injection | Less Bricks (https://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586) ONLY for installing the rooted image and 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):
Once done, because you still will have a locked bootloader, you will not be able to install a regular version of a custom recovery or flash a custom rom (that may come eventually when efidroid is managed to be ported to the locked LG4's). However, you will be able to install a non-regular version of a custom recovery with TWRP-in-FisH that has been tested on the H812 and is working just fine with Version 3 Beta 4 and 5 (you can find those links in the later posts in that site): [LOCKED][G4][TWRP][UNOFFICIAL] TWRP-in-FIsH for all locked G4 devices at https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048
Good luck.
S.
NB: Don't forget to hit the Thanks button for those answering questions your questions and trying to help.
---------- Post added at 04:06 PM ---------- Previous post was at 03:52 PM ----------
phaninder.ch said:
Hi @syphlect
Did you manage to downgrade it?
Have searched all the forums, did not find a way to root the LG G4 H1220u Koodo version.
let me know if you found any links
Click to expand...
Click to collapse
See ... above ...
S.
Thanks a lot buddy... Will give it a try this week.
-Phani
See if you can ...
phaninder.ch said:
Thanks a lot buddy... Will give it a try this week.
-Phani
Click to expand...
Click to collapse
See if you can ... find KDZ's that that are particular to your region in the event there may be differences in bandwidths that are operational, etc.
Cheers,
S.
Yeah could not find specific to koodo Canada. Need to see if its safe to go with something similar to it.
Also I see my current software version is H81220Z. It got updated overnight even though I un-checked to install updates automatically.
Will the LGUP process still work to downgrade?
Koodo is on the ...
phaninder.ch said:
Yeah could not find specific to koodo Canada. Need to see if its safe to go with something similar to it.
Also I see my current software version is H81220Z. It got updated overnight even though I un-checked to install updates automatically.
Will the LGUP process still work to downgrade?
Click to expand...
Click to collapse
Koodo is on the ... Telus network. You can use Telus KDZ's (doesn't specifically have to be H81210Z and they seem to be available (check the Canadian Guide) - others have indicated you can use other Canadian providers (read the Canadian guide). I can't confirm this personally.
Use LGUP-NEW for sure as you are less likely to brick from what I understand if an anti-rollback provision has been put in on the latest firmware upgrade.
S.
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.
I have an LG v40 LM-405UA sprint variant, and I'm using it in Bangladesh.
Since sprint doesn’t share their kdz file so I'm unable to update my phone Android 9 to Android 10,.. Is there any way that i can cross flash to any other rom?
Any rom that support Android 10
And please provide a proper guide how to cross flash..
I tried to cross flash many way but ends up with some error!!
Please help me.. Thanks
Pollob5544 said:
I have an LG v40 LM-405UA sprint variant, and I'm using it in Bangladesh.
Since sprint doesn’t share their kdz file so I'm unable to update my phone Android 9 to Android 10,.. Is there any way that i can cross flash to any other rom?
Any rom that support Android 10
And please provide a proper guide how to cross flash..
I tried to cross flash many way but ends up with some error!!
Please help me.. Thanks
Click to expand...
Click to collapse
Yes u can crossflash sprint to korean open. Do u just want android 10? Or is it important that the phone also works (as a phone)? So you need a rom that supports the bands in Bangladesh right?
There are numerous roms available that are android 10, korean open, ebw, and vzw, maybe others.
The guide to follow is in the guides forum. If u have trouble, it's best to ask in that specific thread, for crossflashing.
And btw, although your question concerns roms, this forum is for **Development** of roms, not general questions about stock roms. This question has nothing to do with development.
cheers