yashsingh1/xdaforums huggingface dataset:
[G4 General] IlyaKol:
Wait, did I just read that correctly?

TWRP is available for H815 and now that it is, we can root it via SuperSU? Is it worth waiting for anything else (a different process to unlock) because of the whole 'once you unlock using LG's method you can't relock' and you void your warranty'? Or will that part likely take months and months?

EDIT:

Posted in that thread:

Magnusson-Moss act. Good to know. I might pull the trigger than when my H815 comes in on thursday...the only thing I can see using my warranty on is something like the hairline crack that the G3's had develops on the G4. I can't see any other issue with the phone software wise that would require warranty service as most of us are techie enough to probably fix it ourselves either via a different ROM, etc.
[G4 General] AhsanU:
Having issues getting the BL unlocked it seems. I can't get any of my computers to recognise the device. Whenever I input adb devices, I get nothing. Computer seems to detect my Huawei though, so weird.

It's 3:30 a.m., idk if it's worth losing sleep over at this point damnit.

Edit: derp. You need to have LG's PC Suite installed in order for your computer to detect it, buh. Time to continue with the process.

Edit #2: Getting an issue from their website after inputting the correct information. I keep getting "not found suffix".

Assuming it's a website error, will try again tomorrow I guess.
[G4 General] markwebb:
Keep us up to date as mine arrives tomorrow.
[G4 General] the_scotsman:
It's already working here: http://xdaforums.com/g4/orig-development/recovery-twrp-2-8-6-0-touch-recovery-t3125859
[G4 General] markwebb:
Thanks as I just saw it after posting!!
[G4 General] iateyourmic:
Flashing TWRP doesn't seem to work successfully from my Mac. I can reboot into (my unlocked) bootloader, fastboot flash recovery twrp.img and then I get a success message.

But when I reboot and use adb to get to recovery, I just get the Android with a red triangle. Rubbish. Any ideas?
[G4 General] :
I have the same issue. I can get into TWRP using fastboot boot.
[G4 General] iateyourmic:
Yup just tried that method and seems to work well. Thank you.
[G4 General] :
I hope though there is some key combination that can be used to get into recovery. Having to be at a computer every time would be pretty annoying. Need to fix the triangle issue first though.
[G4 General] NisseGurra:
Use https://play.google.com/store/apps/details?id=com.siriusapplications.quickboot&hl=sv

to boot into recovery.
[G4 General] somboons:
[YOUTUBE]mCxJ5k8vWEI[/YOUTUBE]
[G4 General] WTF?:
the unlock procedure doesn't have anything to do with whether the phone shows up with adb devices - and what is the model number and country code of this phone?
[G4 General] Imakns:
Having the H815 with "ROM" in package (Romania ?), so European and stuck on "waiting for device" during the cmd "fastboot oem device-id".

Drivers up-to-date and reboot. Everything else work (CWM Tether, etc)
[G4 General] greatpatel007:
O2 UK H815 4G/LTE Issue

the unlocking bootloader on LG H815 will cause losing 4g/LTE connectivity. tested on 2 devices and both lost their ability to connect to network. it just go out of service when tries to connect network. if anybody having same issue and if they found solution then I will love to try that.

What I tried

Enabling bands via code and tool

Flashing all available KDZ on internet

Different SIM cards
[G4 General] WTF?:
No, there are thousands upon thousands of people with unlocked bootloader H815, and this is the first report I have ever heard of losing LTE connectivity - UNLOCKING THE BOOTLOADER DOES NOT CAUSE LOSS OF CONNECTIVITY, quit spreading ridiculous fear in people. Just step back and troubleshoot the phone properly. And there is no valid method to "Enabling bands via code and tool" so I would start with that - I would advise you reflash the stock ROM and do it properly, for example, if your bootloader is unlocked, there is no reason to use KDZ files, use TWRP and flash the proper zip files.

You may well need to get your carrier on the phone to refresh your SIM authorization after a reflash of a new modem, or wiping, etc.. I had to contact AT&T and they found an error on their end, but the carriers do not care if your bootloader is unlocked, as LG has authorized this for European models.
[G4 General] michelsberg:
This reply is sent over LTE.

Edit: ... and the bootloader is unlocked, of course.
[G4 General] greatpatel007:
well in my case it is the situation right now. even I reflashed backup which I made using TWRP right after unlocking bootloader but didn't work. flashed almost 8 different firmware with flash tool and LGUP. all ZIP files available on XDA tried everything. could be hardware but here is one thing sometimes after reflashing v10c I got 4G signals but if you restart your device ./boom its gone.

anything else you can suggest. See I know hundreds of phone are out there which are working fine with unlocked bootloader and but still this is what it is.
[G4 General] WTF?:
I would pull the battery, then I would have all of the zips downloaded (rooted boot, bootloader, system, modem) and then wipe everything and the use TWRP to flash rooted kernel boot, modem, and system, then still within TWRP, flash bootloader (bootloader must be done separate and last because it checks to make sure system is stock.)

Once all that is done, I would check with my carrier and have them reauthorize my SIM
[G4 General] greatpatel007:
already done this few times with different network providers no luck.
[G4 General] @Mir hosiEn:
If I use this method (h815p)

What happen?
[G4 General] WTF?:
there is no effective unlock method for model H815P, only H815 and H811
[G4 General] greatpatel007:
I can help you with that via team viewer in my free time let me know if you cant make it work. PM me your contact details.
[G4 General] pushnoi:
Ok so it took me about 2 weeks, but I got them to correct it in their database. Just got the unlock in the mail =)

Contact support by email. They'll probably want you to send a picture of the back of the phone with the backplate removed and after that a screenshot of your fastboot dev id readouts to prove it's actually giving back that dev id. If all checks out you'll be able to unlock.
[G4 General] WTF?:
very cool :good:
[G4 General] Imakns:
I have H815 EU ROM, with RR 5.6.1, and I got LTE without problem.

I'm tethering in 4G actually, for download GTA V (Bc my home internet stuck at 500ko/s) you know :)
[G4 General] greatpatel007:
i'm glad that your phone works perfectly but it doesnt mean that everyone's phone works the same. if you do bit search than you will find that people had freezing issue or fail board issue without unlocking bootloader. Hell for them... anything can happen. share your modem backup and let me give try. Help others instead telling me that it works......... bla bla bla... I know hundreds of people are using it without any problem.
[G4 General] delijesever:
Singapore

Hello guys,

I have problem with unlocking bootloader, when I click confirm, it is warning me that is not possible because model from Singapore are not able to unblock.

I am in Europe.

Is there any solution for this problem?

Please help mee...
[G4 General] kylothow:
Well, I'm afraid you must buy another phone or live with the locked bootloader.

One of our maintainers had to send back his phone because of this limitation (only H815 produced for Europe are unlockable).

--kylothow--
[G4 General] delijesever:
It means that I can't root my phone, if ilI can't unlocke bootloader?
[G4 General] kylothow:
From what I've seen there is a new exploit to root marshmallow via adb with a thread somewhere here on xda, BUT I'm not sure on how it works but it should work for locked devices (or it would be useless if you can install a recovery, right?).

For lollipop instead I'm sure there are prerooted system images for locked bootloaders.

--kylothow--
[G4 General] delijesever:
I have lollipop, I wanted to flash marshmallow vis twrp, and I figured out problem with unlocking...

If I can root on some other way and flash 6.0 it will be good.
[G4 General] sperelli:
could you please help finding link?
[G4 General] WTF?:
here is the definitive list of the country codes that can be unlocked - I had a Singapore version too, and no way to unlock bootloader, so I sold it for US$400 and used that $400 to buy the CZE code version (Czech Republic), and now I am very happy because my bootloader is unlocked and I can do anything I want! :p
[G4 General] kylothow:
This is the thread with rooted images for all variants with Lollipop http://xdaforums.com/showthread.php?t=3164765

I'm not sure about Marshmallow root as I've read systemless root (aka patched boot.img) is needed for a lot of devices -> and the G4 is one of them. Sooo... Being a locked G4 not able to boot a patched boot image at the moment root is not possible.

Once again, please note that I haven't done deep researches about this and I'm not 100% sure.

About the comment you quoted, I think I misread the title of a thread for G4s... So not for us, sorry.

--kylothow--
[G4 General] tomcatoggo:
Planning to unlock my bootloader now... but maybe a short question before I get finally started :

did I get it right, that the warning LG drops about loosing features etc. is bs? Means: except for the warranty part (which I don't care), the phone (and the camera) works totally normal (when using official ROMs of course)?

Asking, because the 1st post mentions the DRM partition (/keys)... but afaik, they have not the same meaning and importance as in case of Sony.

Thank you in advance!
[G4 General] WTF?:
Yes, phone works great with bootloader unlocked and using stock ROM (I am using 20B Marshmallow), no features lost whatsoever!

In fact, it works much better than a locked bootloader, since you can now block ads, remove any bloatware LG or Google system app, etc. and run tons of awesome apps that requite roo, use TWRP to wipe dalvik cache, or other partitions flash zips, etc.

I would install TWRP first thing! - Quick Boot is another must have app to install, makes going into TWRP super easy.

also, I recommend downloading the app called Build Prop Editor and changing DPI to 538, that really shows off the potential of this screen!
[G4 General] Amightypotato:
What are the chances of being able to lock bootloader in future?
[G4 General] WTF?:
ZERO chance!!

and I would never want to, anyway .......... ugh!
[G4 General] tomcatoggo:
Thanks a lot for your answer!

I actually plan to use CM or Resurrection with it... I really loathe the LG UI meanwhile... especially as I see my old Moto G (1st Gen) with CM 13 and realize what wonderfully fluid experience is possible... with a phone more than 3 years old ^^

But it's good to know that using a debloated LG ROM is possible :)
[G4 General] WTF?:
I have had the best luck debloating, just using the stock ROM just by deleting unneeded system apps with Link2SD - have not met a perfectly reliable ROM for the LG G4 yet, stock is rock solid. - And I don't think I have EVER seen a bug-free version of CM on ANY phone, ever.
[G4 General] michelsberg:
I have never seen ANY bugfree Operating System EVER. So what.
[G4 General] larsdennert:
That is not a fair reply, "whatsoever". There is a decent list of apps that do not function with an unlocked bootloader or root. Android Pay is at the top of them and RootCloak won't fix this issue. Anything using Secure Shield will detect an unlocked BL.
[G4 General] WTF?:
Surely you are joking.

I would not DARE allow an app on my phone that tried to put a restriction on whether I was rooted or bootloader unlocked, on principle, alone! - what a huge invasion of my privacy and personal freedom - even if my phone was not rooted or not unlocked, I would consider any app like you describe as malware, with no further discussion.

NO MALWARE ALLOWED on my phone!! .......... ugh!
[G4 General] tomcatoggo:
Hm... I actually see it the way michelsberg wrote it: I never saw a completely bug-free software yet... and even if the stock system was bug-free and even though it really is very stable, I still get annoyed every day by the UI... but for me I am also one of those persons who want to tweak every single detail of the system (notifications and everything)... and that is only possible with non-stock systems... so well... I'll give it a try and will see (tonight I should find time to do it :)
[G4 General] cdmurray88:
Unlock Check

Hey guys,

Bought a G4 advertised as factory unlocked. How do I go about checking the bootloader status? The power + vol key combos I'm used to from other phones don't seem to be helpful.

ADB to recovery just shows Andy with a caution triangle, no text.
[G4 General] WTF?:
they should have said bootloader unlocked if they meant that - can you tell us the three digit country code on the outside of the box and the three letter code that comes up under Provider in LG Phone Info app - see this post for more info on these two things

those things will tell you if it can be unlocked, if it were already unlocked, it will say so on the first screen when you first power it on
[G4 General] cdmurray88:
I believe it was the Singapore model when I looked. Just carrier unlocked then. Guess I'm waiting with everyone else for an unlock or root exploit.
[G4 General] WTF?:
I am afraid you and everyone else will be waiting forever, if there was going to be a change in LG's policy (dictated by greedy controlling carriers) or an exploit, it would have already happened - this phone is nearly a year old.

I sold my Singapore code LG G4 and bought a CZE code one for about the same money used in mint condition and it has been nothing but fantastic unlocked bootloader bliss ever since! - Highly recommend that you all do the same! (I also sold a Taiwan version I had gotten for my GF and got a GBR code one which is also now bootloader unlocked.)
[G4 General] cdmurray88:
Well, thanks for the help. I bought this phone because my aging, rooted, ROMed, xposed S4 with SIM issues wasn't cutting it as a work phone. While I would really love to edit some things that bother me about LG's UX, it's more important to have a reliable, functioning work phone.
[G4 General] WTF?:
Oh I think you have the best phone available on the market (as of right now) I was suggesting you sell it and get the same phone in an unlockable model. - that is what I did and I am glad every day!

Like a huge thing for me is ad blocking the entire phone, not just the web browser, and another huge thing is debloating some of the worthless system apps from LG and especially from google. And many other things that root + marshmallow + unlocked gives ya
[G4 General] HGKing:
I am trying to unlock the bootloader, but when I type "adb reboot fastboot" it says error no device detected. I've already enabled Oem unlock and USB debugging. Is there anyone who can give some advice?
[G4 General] WTF?:
yes, please check the country code on the end of the box, and also check it using the LG Phone Info app (the code listed under "Provider") and report back here with the code

here is the complete list of bootloader unlockable country codes and more info about using the app
[G4 General] cdmurray88:
After scouring the forums, this is what I've settled with so far. I was able to rollback my SEA G4 from MM to LP, then install a rooted system image. Bootloader is still locked, and I can't upgrade to MM with root. Still looking into updating to the latest rooted LP system image.

Not a perfect solution, but root access is all I really wanted.
[G4 General] WTF?:
I just learned the hard way a long time ago that I am a very frustrated camper if anything is locked out on my phone, so I immediately swapped my locked G4 for an unlockable one, the process was revenue neutral and painless - best phone move I ever made, now I truly love this phone, because I can customize it just how I want it, and can quickly reflash the systemless rooted stock ROM from TWRP if I mess anything up experimenting!!
[G4 General] Diatomix98:
How did you swap the phone? Through which source?
[G4 General] WTF?:
I just sold my mint condition G4 on swappa or ebay, and then searched on swappa or ebay or online stores in Europe for a H815 with correct country code and used money from selling locked G4 to buy bootloader unlockable coded model
[G4 General] Diatomix98:
Well unfortunately I live in Malaysia which sits in Asia and I think if I do the same thing as you did, it will take twice or more than that of your time taken to trade and buy. Guess the G4s here are mostly SEA variants which are unable to unlock.
[G4 General] andrei_david7:
if i relock the bootloader, the warranty will be restored?
[G4 General] WTF?:
the bootloader cannot be relocked

---------- Post added at 03:50 PM ---------- Previous post was at 03:48 PM ----------

we have the Internet and PayPal now, it is easy to buy or sell things online from other countries around the world, I have bought and sold things with Malaysia and I am in USA.
[G4 General] ecclesiatic:
Can you please point me to the instructions how to roll back to LP

---------- Post added at 11:48 AM ---------- Previous post was at 11:46 AM ----------

I asked earlier where I could find hot to rollback to LP but found it moments after posting sorry. For anyone else it is here http://xdaforums.com/g4/help/lgup-install-kdz-mm-lp-t3249803
[G4 General] asce1992:
Hi all!

I’m unable to unlock the bootloader of my lg g4 h815. The error I got is “Device ID is unmatched. Please check your Device ID. Your account will be locked if you enter the wrong Device ID more than 8 times.”

Recently I sent my device to LG. They changed the mainboard but they don’t give me any new Imei of my device.

Anyone with this problem? How can I solve this?

Thank you :)
[G4 General] Diatomix98:
Try dialing *#06# in phone app.
[G4 General] asce1992:
I tried, but the imei is the same.
[G4 General] WTF?:
download and install the LG Phone Info app from the play store - and use that IMEI - also tell us what it says in that app under "Provider"

also make sure the IMEI in LG Phone Info, and in Settings About Phone, and behind the battery, and on the box all match up.
[G4 General] Diatomix98:
Is the T-mobile variant H811 unlocked by default? If it is true I guess I will swap mine with a H811 online.
[G4 General] WTF?:
Yes.
[G4 General] Diatomix98:
But heard that it is only compatible with T-mobile network?
[G4 General] WTF?:
well of course!

this is why most people who are serious about unlocked bootloader or rooted Marshmallow just get an H815 Euro code, as explained here
[G4 General] bhauwaladeepak:
LG G4 Bootloader Unlock for TWN model

Hi All

Apologies if this thread has been covered. But can someone confirm if the bootloader for the LG G4 TWN (Taiwanese) Model cant be unlocked ?

Also does that mean I cant install custom OS like Cyanogen on the same unless the Bootloader is unlocked .
[G4 General] WTF?:
correct - TWN cannot be bootloader unlocked

correct - you have to have an unlocked bootloader to install a custom ROM like CM, or to use TWRP, or even to root under Marshmallow.

you best move is to sell the TWN phone and use the proceeds to buy a Euro country coded LG G4 model H815, as shown in this tutorial
[G4 General] Diatomix98:
Sold my Singapore Arrow SEA G4 and bought an Europe variant on this site.

http://www.handtec.co.uk/lg-g4-32gb-smartphone-genuine-leather-black.html

Looking forward to receiving it soon, hopefully by this weekend so I could start playing with various ROMs and kernels during the weekend.:p
[G4 General] WTF?:
what is the code of the new phone?

remember that just because you have a European vendor, doesn't mean you are buying a Euro code phone, necessarily

always verify the country code with the seller
[G4 General] Harry551:
Hi.. I have an LG G4 with v20c marshmallow and locked bootloader. This method work on marshmallow firmware or need downgrade before unlock my bootloader?
[G4 General] WTF?:
the only way to unlock your bootloader is shown in this guide

it doesn't matter what version of Android you phone has, as far as bootloader unlocking, just the country code
[G4 General] bill1971:
Is there a way to not see the mesage bootloader state bootloader unlocked,when the phone boot in start up?
[G4 General] WTF?:
hold the phone by the top corner with your thumb across it, is the only way :p

it was put there for a reason, to indicate to the factory techs that the phone is no longer warranted

(which is not really a big deal, I have dropped mine about 100 times and it looks and works as well as any phone at any price)
[G4 General] Bren81:
adb works but not Fasboot ...

Hello,

I have a similar issue:

- "adb devices" command shows the phone

- "fastboot devices" shows nothing

- "fastboot reboot" shows "< waiting for device >"

I tried on windows 7, 10, Mac, always the same issue... I wonder if the H815 is the cause of this...

Could someone help me ?

Many Thanks
[G4 General] Stransky:
I have just unlocked, installed TWRP 3 and Supersu 2.65 on my H815 v20d-EUR-XX with no problems. If your 815 has a European rom you should have no problem unlocking it. Check the list of EUR countries just make sure.
[G4 General] WTF?:
most fastboot issues on this phone tend to be either incorrect driver or incorrect fastboot/adb versions - never seen it actually be the fault of the LG G4
[G4 General] WTF?:
here is the list of the country codes than can be unlocked - [http://xdaforums.com/g4/general/unl.../unlock-list-lg-g4-variants-unlocked-t3262621)
[G4 General] Bren81:
Thanks for your answer. I think about a device fault because when I do : adb reboot bootloader, my phone reboot, but the only way to exit the bootloader mode is to remove the battery (pressing 10 s. on power button does not work). Furthermore, I tried on a Mac, with exactly the same issue.

I have tried again with the official lg procedure : no success.

- My phone is from France so support unlocking the bootloader.

- I have donwloaded and installed the latest android sdk version from developer.android.com

As you say, the issue may come from the driver installation. However I have tried to force installation of the driver as mentionned in the web (Device manager, right clic on device, manual selection / android device / Android ADB Device). With that, adb commands work, but not fastboot commands....

Would you have some insight or tips ?

Many thanks
[G4 General] sperelli:
so there is no need to flash a rooted kernel in 20d, after unlock and twrp???? how do u inject supersu?
[G4 General] WTF?:
just follow the very simple instructions in post #1 here

I downloaded the "complete" zip and the latest systemless SuperSU (v 2.67), and just flashed them both using TWRP - worked fine.