yashsingh1/xdaforums huggingface dataset:
[G4 General] Mini Franki:
Yep that what i read. I dont have choice, i prefer a lot MM :(

Do you guys have some news about root for MM? I suppose i can install every h812 firmware? Because i dont find koodo firmware

Thx
[G4 General] mark324:
Yup,same here, i got bored of the phone in half a year, my next phone won't be LG that's for sure,shame though, this is my first LG phone,it's an awesome phone,but without root and unlock bootloader, its just that ,a phone.My asus Tf700 tablet had dozens of ROMs installed since I got it,that's probably in 2012 when I got it ,and It already has nougat, I'll never be bored of it, it still has lots of support and developers releasing ROMs and updates,
[G4 General] Jason123420:
This was the worst phone I've ever bought.. didn't know how much I missed my Nexus until I got the 6P.. now I can control everything again.. loving the screen on time! So glad I sold my G4
[G4 General] 350Rocket:
I sold mine for an s6 which I've already rooted and installed a custom ROM. It's missing some features of the g4 but at least it's not going to be left with no updates and no Roms like the g4. It's also faster which I didn't expect.
[G4 General] xmod0:
cant seem to find my lollipop firmware to downgrade... im on H81220j
[G4 General] eboy_gb:
My g4 started bootlooping on Thanksgiving weekend.

I sent it in for repairs on October 13th to FutureTel in Markham (as per LG's instructions) and I haven't heard anything since.

So, I'm trying to get a hold of LG....
[G4 General] SuaveCanadian:
I just got my phone back from FutureTel. There is no communication when it's with them but it took about 12 days to get it fixed and back to Calgary. The work was well done.
[G4 General] Opacac:
Well my 1 year and 3 month old g4 finally got the bootloop on Sunday. Contacted lg and waiting for their response. I already had an axon 7 on the way but the screen was defective so I had to send it back for a replacement. LG will never get my business again on the way they handled this situation. Seriously pathetic
[G4 General] eboy_gb:
Thanks for letting me know!

Makes me extra worried though that's it's been two almost two months and they're not responding to my emails...not sure what to do...
[G4 General] livanpinar:
I sent mine through Fido, came back with f**** Marshmallow preinstalled. Tried to downgrade and didn't work. Sent it back and again I got it with MM. Won't ever buy LG again.
[G4 General] eboy_gb:
I finally got mine back from FuturTel yesterday.

When I got a hold of someone they said they tried sending me back the phone earlier but it got returned because it "could not be delivered" as my provided address didn't exist and when they tried to call me, my phone number ""was out of service".....Really? I gave them wrong address *and* the wrong phone number?? (yeah, right)

I'm trying to sell it (and a bunch of accessories) on Kijiji right now, but I'm getting low balled left, right and center; everybody wants it for $150....

I was hoping to re-coup some money from buying my replacement phone.

Do you guys think the fact that a lot of the major carriers are offering the G4 as a $0 phone right now is driving down the cost of the phone in the second hand market? Should I hold out for a bit more money?
[G4 General] vipergeis:
I was on that exact software version, what i ended up trying is i used LGUP app from this thread. to downgrade my phone to 5.1.

It wouldn't detect my phone until i manually put it into download mode.

http://xdaforums.com/g4/help/lgup-install-kdz-mm-lp-t3249803

using these instructions.

TO GO BACK TO LP FROM MM - Open LGUP on your computer, click on FILE PATH and point it towards your LP KDZ. Close LGUP and re-open LGUP. Make sure you select REFURBISH this will do a full wipe, tick BIN file.

Using the STOCK KDZ H81210N from this thread

http://xdaforums.com/g4/general/canadian-guide-complete-source-lg-g4-t3212449

afterwards rooting following this thread.

http://xdaforums.com/showpost.php?p=62028523&postcount=2

the only issues that i have noticed with the downgrade from 6.0 to 5.1 is upon boot I had to maunally set the providers APN under networks before I could get Data working.

also this will delete all you data so backup your stuff if your going to attempt this.
[G4 General] FlyingFiddle:
My G4 bootlooped two days after one year mark, second day of my week-long Orlando vacation!! :(

Now Fido took it and shipped it to LG for repair. I am using a temporary phone from Fido, Sony Xperia. Really miss my fully customized G4 now.

Question: do they actually repair it or give you a new (refurbished?) phone? If repair I have my fingers crossed that they will keep mine on Lollipop..
[G4 General] fleagalbaum:
I'm on Fido also. I sent mine away and they changed the motherboard, new iemi,. It came back locked, I paid for an unlock code previously, I am told you need to tell them if you want it turned unlocked. It was also on marshmallow. I had to downgrade to get back my root.
[G4 General] FlyingFiddle:
Thank you very much for the information! Are you saying I need to phone them up to tell them to unlock it while repairing? Or that is done after you have received the repaired unit?

As for MM, at least there is a way to downgrade if I don't like the MM. Maybe it's time to give it a go. Will see. Thanks again!
[G4 General] fleagalbaum:
I think you need to tell them it is unlocked and you want it back unlocked. I sent mine myself through lg. When I got it back, I called Fido to get it unlocked again and they had no record of me sending out as I didn't go through Fido. Because my new motherboard had a new iemi, they said it was a different phone. I pleaded my case and they have me a new unlock code for free.
[G4 General] swarshah:
I purchased G4 yesterday and was looking for root on MM for our H812 and turned out it's not possible on MM.

Then I stumbled upon following G5's root thread.

http://xdaforums.com/lg-g5/how-to/guide-adb-root-rw-dm-verity-off-sprint-t3523499

As OP of G5's root has mentioned "it seems that this userdebug kernel actually works on all devices running antirollback v0 and running Marshmallow!"

I just verified in my G4 it has antirollback v0 and we are on MM so it looks like we can root G4 same as G5 got rooted recently.

You can check antirollback version in hidden menu *#*#244773825625#*#*

Any thoughts on this? Would it be possible or not?
[G4 General] paranoid365:
Hey swar12894, I checked my H812 & I have the, "antirollback v0", as well. I haven't read the G5 root link you provided yet, but some confirmation from the XDA geniuses, (me not being one of them, lol), would be awesome, bc this is super exciting, if it will actually work. I've been waiting to root this damn G4 for a while, lol. (getting rid of it is a huge pain in the ass)!

I still don't get why manufacturers do stupid things like "model specific-only", rooting, bc it only hurts the customer in the end, and if it's the damn carriers requesting this crap they can drop dead; it's us, the customers that allow these stupid, (over-charging, under performing), carriers to have their cushy jobs ?
[G4 General] bdasmith:
Thank you to the OP and all who contributed! So happy to have root on my h812.

Love me some adaway and after removing all bloat and not need apps i love that i have 1.8 gb free ram! Nice!
[G4 General] GlennNoronha:
Can someone help root my Lg g4.

I am a complete noon when it comes to root so im gonna need a lot of help.

My carrier is wind(freedom mobile now)

Software version: h81220j

I can't find the files for my device
[G4 General] milan187:
You can use any Canadian carrier files on first post. Follow instructions. Thing is you have to downgrade to L.
[G4 General] GlennNoronha:
Can you go through the the process of root with me because I'm a complete noob when it comes to root. And how do i downgrade it to lollipop
[G4 General] madcaesar18:
Anyone know how to extract the kdz from the phone?
[G4 General] Dejan_Mk:
I have Lg G4 H812 Bell Mobility which was working great until when i decided to upgrade it to MM via Lg Bridge, now i am stucked logo, once it went until android optimization, but then rebooted. I can enter in download mode at anytime, tried flashing it with kdz H81220x but nothing happens still can't go past the logo. If anyone can give me some tips is there a way or a file i can use so i can revive my phone, because the device is new i don't want to throw it away.
[G4 General] Dejan_Mk:
H812, can't boot past lg Logo

Hello guys, i am Dejan from Macedonia if you ever heard of Macedonia :))), and i got a Lg G4 H812E Bell Mobility (by the Imei data). Phone was working fine until i decided to update it via LG Bridge to H81220X, now the phone is stuck and can't boot past logo, once it booted up until optimization. Download mode is accessible i tried the LG recovery error but nothing again. Please if anyone can give me a hint or idea on how to fix it if it's possible i am willing to donate since i am desperate, i worked all summer to buy it and only had it for 2 days until this happened. Thank you in advance !
[G4 General] robgrant_1975@live.com:
Switching Carriers with Canadian LG G4

Sorry guys, I am new to the forum, and hope you can help. I have a Bell LG G4, and would like to use it with Telus pre-pay. Is this possible if the phone is with Bell, and what are the steps that need to be taken? I have successfully rooted a Sprint G3, so I have an idea on how to root, but just wondering if rooting is necessary, or is it possible to just change sim cards? Hope I don't sound too ridiculous.
[G4 General] FlyingFiddle:
You don't need root. you just need to have it unlocked. Unless it's already unlocked. If not sure it doesn't hurt to just try to put in a Telus or Roger SIM to try. If you need to unlock, either officially through Bell, or use many online unlocking service. I have personally used https://cellphoneunlock.net many times, two G3, one G4, and two Samsung, all worked very well. They have detailed instruction to follow and much cheaper than official unlocking fee.

---------- Post added at 12:43 AM ---------- Previous post was at 12:17 AM ----------

Just want to report back that, after my G4 bootlooped, Fido took it and sent it away for repair. It was done within 10 days, by an authorized LG repair centre, not by LG themselves. For those who are curious, mine was rooted, "unofficially" unlocked, so basically all the usual "void-your-warranty" stuff :). Also, mine had been one year and two days, so technically out of the one year warranty. But, it was repaired. The repair note says "motherboard" repaired. Other part of the phone wasn't touched.

So, all in all not too bad. At least LG owned up to this and repaired it. Now it's on MM, no root anymore..
[G4 General] mountainsnow:
Hello all,

Tonnes of good info right across these boards however the Canadian G4 Guide is what I'm after. I've begun reading this thread to find successes and pitfalls about your personalized experiences and will be reading the entire 129 pages!

Seems to me that LG-Android are getting smarter in the blocking of MM to root directly that a work around must be done, unfortunately giving more work and issues for the consumer. For me I've got that G4 lg-h812 running darn 6.0mm via carrier Virgin. It seems my software is one of the more recent versions as it is H8122X, I have not run across much info with people having the X version. Seen here and there in reading the pages.

From reading the first page on what stock images are available even on that linked website I don't see anything which states it is the X version. If I use what I see is available the H81220E from Rogers, will that not cause issues? Was hoping to find a H81220X via virgin image to have that exact phone backup. Found the H81220x system image, whoo.

I've wanted to do an exact image copy of the phone as I have it as well. I followed "Root ANY LG G4 Variant 100% Success Directives | Root Injection | Less Bricks" however there is always a fail no matter how many times it is attempted.

Developer mode, window drivers installed, proper com # but when using:

H812 Canada (All H812s) :

Code:

dd if=/data/media/0/rootedsystem.img bs=8192 seek=65536 count=548352 of=/dev/block/mmcblk0

it gives a fail.

Have people successfully take an image with their own Canadian H812 phones?!

Thanks
[G4 General] echomkd:
Hey Dejan,

Have you tried flashing it with LGUP?
[G4 General] mountainsnow:
For your phone was it stock Lg G4 H81220E ? (as in MM?)
[G4 General] mountainsnow:
Did the root, all was good and here was my method.

Original phone stock H81220V via Virgin

Backup phone stock H81220X (X was the natural upgrade path via lg via wireshark peakaboo technique...so I found an H81220X image for my backup)

Used H81210N for downgrade to LP

Used H81210O for root on LP

Used LGUP for flashing LP stock. (also tested with success after downgrade LP stock installation, upgrading back to H81220X)

Used for flashing root image: dd if=/data/media/0/rootedsystem.img bs=8192 seek=65536 count=548352 of=/dev/block/mmcblk0

Backup phone stock used H81220X: H81220x_00_1122.kdz via http://lg-firmwares.com/download-file/?fileId=4587

LP stock image used H81210N: H81210n_00_1204STOCKkdz.rar via https://www.androidfilehost.com/?fid=24407100847293113

LP root image used H81210O: H81210oROOTED.rar via https://www.androidfilehost.com/?fid=24352994023702885

All was successful and without issue. Typical methods described was used with 1st try success.

Thanks to everyone who answered any of my questions.
[G4 General] DoughMucker:
Unfortunately, my G4 wouldn't power on the other day and i needed a new motherboard. TELUS and LG replaced it in less than 4 days. I lost root and all my customizations as I'm now on MM. :( With Wi-Fi calling around the corner i sure hope that boatloader unlock tool comes fast (and works for us) so we can have MM or Nougat with root and custom roms.
[G4 General] offall:
same here, on one hand, I like the wifi calling, on the otherhand, no root and no customizations which is unbearable.

if I downgrade to LP like previous thread, I will loose wifi calling.

why there is no root on H812 on MM, how about all other variations, do they get their root?
[G4 General] ericlnu:
Question, and apologies if this has been asked before. I'd it possible to just install - for example -SuperSU while in the bootloader and root that way? Seems like it would be easier.
[G4 General] droiduzr2:
Did anyone try this method to root the 812?

They say it supposed to work with MM

http://www.androidinfotech.com/2016/04/root-lg-g4-60-marshmallow.html
[G4 General] tgaaara:
is possible to root the model 812 ??!
[G4 General] ericlnu:
Edit: h812 not h815, is my model.

Will a custom ROM for h812 work on our devices, not be a hard brick, etc.? I see there's versions of lineageOS and AICP (latter based on former) for h815. I used S4 Mini , and was easy to root, unlock everything (didn't unlock SIM), and there used serranoltexx, which is the international version there. I know h815 is the version for this device. I doubt this directly translates, but since it's likely the same hardware, just some differences in software/firmware, I would guess it would work.

Has anyone tried this?

I'm kinda disappointed that - so far as I've read here - I can't even unlock the bootloader, easily get root (without a risk of bricking that is)... Otherwise overall I like the device, the camera is top notch for this gen. of device, IME.

Any thoughts, ideas, anyone has heard recently? Suggestions as to what I can get instead, with similar specs (sdcard, great camera, lots of RAM, CPU and internal space)? But easily root, too. On Fido, just got this thing last week.
[G4 General] tgaaara:
need help need root my lg g4

Model : LGH81220j Videotron

need to downgrade and need the kdz files how to download the stock and the rooted firmware

ty for your help
[G4 General] bdasmith:
Try it out and let us know....i'm quite happy with my 5.1 and xposed setup right now.

---------- Post added at 11:46 PM ---------- Previous post was at 11:45 PM ----------

Everything you need is posted in original post. Just follow the instructions.
[G4 General] tgaaara:
The probleme for the stock firmware i have a blank page

No download start

Is possible to upgrade after root in mm ? With root
[G4 General] pegcitygeek:
No, root only exists on LP for the H812.
[G4 General] livanpinar:
Screw LG, I won't EVER, EVER, EVER buy ANYTHING from them again... Even if they start making food I won't buy their Lollipops or Marshmallows. Disappointed.
[G4 General] paranoid365:
https://xdaforums.com/showthread.php?p=70699968

---------- Post added at 03:03 PM ---------- Previous post was at 02:53 PM ----------

As far as I know, and have researched, using a rom for the h815 won't work, (I believe I read in a diffrent thread that it was tried). The issue you risk running into is bricking your device, so after what I read I didn't even bother trying.

There is this method, which is just a few less steps than OP. (standard disclaimer) **I take no credit for this method, and no responsibility if any device is damaged, and as always use @ your own risk**

https://xdaforums.com/showthread.php?p=70699968

---------- Post added at 03:13 PM ---------- Previous post was at 03:03 PM ----------

I totally agree, bc it's bull**** that LG made unlocking the bootloader for the other variants of the G4, (but not the h812, which was singled out), easy as pie. I don't care if it was by carrier request, or what the excuse is, LG really dropped the ball big time on this one!![emoji35][emoji35]
[G4 General] ericlnu:
I typoed my model number, which is the h812. Those Rogers/Fido ones.

---------- Post added at 20:19 ---------- Previous post was at 20:16 ----------

I don't have a working Windows machine to do all this, only Linux on a low-powered netbook.

I'm sure I could do this just as easily with a proper box (have it, just fried mobo).

Edit, 25 June: I got a proper computer recently. When my time allows I'll be looking into this again.
[G4 General] AsunderPine:
I successfully got my (Originally H81220U, now H81210b) device rooted. I fell into the upgrading trap a while ago to get 6.0, and downgrading was a hassle.

I managed to use LGUP to downgrade without root/fastboot, followed by using this page to scavenge what I needed. Once rooted, I had a "Soft crash". System UI would crash, meaning pretty much nothing would work, and resulted in a UI load loop if I closed the message. I could still navigate settings if I did not touch the messagebox, so yes, USB can still be used if require to fix this issue. Myself, a simple factory reset built into the device worked (powering off then using vol down/power key, letting go off the power key only at the logo and 1 second later holding power again).

Hope this helps anyone else with issues.
[G4 General] sdembiske:
Rogers/Fido H81210N was the later Lollipop update to H1210H

The H81210H did not have the latest security update for the "Stagefright" vulnerability whereas the H81210N did (you can confirm with the Stagefright Detector app (free on Play Store). I do not recommend using the H812H rooted image - use the H81210N for your own security. You can flash the Rogers/Fido rooted H81210N safely over the stock H81210H, provided by you, courtesy of nabbasi and Jok3r10, respectively. My only caution is when installing Xposed on the N is to use the latest versions (XposedInstaller_3.1.apk and xposed-v87-sdk22-arm64.zip) and if you have previously tried to install an older version, run the uninstaller first to remove any traces, other wise you may get a soft brick.

My thanks to all of you.

Best Regards - S.
[G4 General] sdembiske:
Thank you ... do you have a copy of your stock H81210N kdz as well?

Thank you for your rooted H81210N image, it's much appreciated. It was the latest update that was put through by Fido/Rogers for the 812 as it included the last security update for the Stagefright vulnerability.

If you have a copy of your stock H81210N I would very much appreciate it in order to have the right version for going back to stock before the Android 7.0 update due out I believe later this year for North America. I too am with Fido and would like a seamless transition.

Thank you, again.

S.
[G4 General] ericlnu:
Thank you [MENTION=4797043]nabbasi[/MENTION] and [MENTION=6302635]sdembiske[/MENTION] :). I've been wondering about this very situation, you folks give me hope to have root, if not a custom ROM (e.g. Lineage or AICP).
[G4 General] sdembiske:
No custom Rom yet, how about a custom recovery ...

No custom Rom yet, how about a custom recovery ... check out [LOCKED][G4][TWRP][UNOFFICIAL] TWRP-in-FIsH for all locked G4 devices by steadfasterX at: https://xdaforums.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048

Read his discussion fully - a custom ROM may not be out of the realm of possibility as it is being worked on ... hope springs eternal ...

Cheers, S.
[G4 General] sdembiske:
de facto Custom Recovery - NOW available (TWRP-in-FisH)

Note: TWRP-in-FisH installed successfully on rooted H81210N with no issues. First back-up done with TWRP. Refer to the link in the quote above and remember to Thank not only steadfasterX but Rees86 for paving the way for the H812 users.

Why wait, if you've gotten this far?

Cheers, S.
[G4 General] hrundel200:
Hi there, is it possible to unlock my LGH812f6c48fe8 device, if so, how ? Thanks
[G4 General] Alextrophysics:
G4 812 custom rom

So, still no information about the possibility of having the 812 variant bootloader unlockable for a custom rom? I'm really never... EVER gonna buy anything from LG ever again...
[G4 General] paranoid365:
I 2nd that 100%!! LG, "only cares enough", to get our money, so why should we care @ all about their newer, and future, mobile products. This position, (of course), is based on more than just this one issue, LG has really dropped the ball, and the best way to make that known to them, is with your wallet.
[G4 General] sdembiske:
There are other things you can do as well ...

There are other things you can do as well ...

1). You can sign the petition "Unlock bootloader on all G4 devices" at https://www.change.org/p/lg-electro...C/YqSrRbqm72P7rhyWcrCUGQE0aupTMa8CxmXZLaZ2yz6

2). You could support those who are working to overcome these obstacles and give your feedback once you've tested out their work. Suggest you both check out steadfasterX's work: [LOCKED][G4][TWRP][UNOFFICIAL] TWRP-in-FIsH for all locked G4 devices posted at https://xdaforums.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048. He is working full-time currently on a port that will allow bootloader locked LG G4's to boot custom roms, using efidroid.

No need to abandon all hope entirely, eh ... ?

S.
[G4 General] sdembiske:
TWRP recovery (TWRP-in-FisH) - 2 recoveries completed, no issues on latest release

Heads up to those wishing to progress ultimately to being able to install a custom rom.

Latest experimental version of TWRP-in-FisH by steadfasterX (https://xdaforums.com/g4/developmen...ocked-g4-devices-t3573048/page16#post71741334), --- see post # 156 for download there) --- has worked flawlessly for the two restores I have done with it on my H812.

This a MAJOR WIN for all LG G4 owners with locked bootloaders as steadfasterX is working on porting efidroid to the G4 so that custom roms can be installed by those wishing to. No sense having a custom rom if you can't restore back to where you were when the custom doesn't meet one's expectations.

Check it out and give your Thanks (click the button) and feedback to him! This guy is working hard on the issues that have confronted us with this phone and deserves our full support.

S.
[G4 General] mark324:
Well I'm totally hopeless now, I won't need to wait for root or unlocked bootloader, after a year and 4 months having this phone , my first LG phone, my phone finally got the bootloop. I would suggest you guys sell the phones now before you get it too, it's a known problem that LG has admitted to and hasn't recalled. back to Samsung I go.