yashsingh1/xdaforums huggingface dataset:
[G4 General] nurjihan:
twrp recovery link not work
[G4 General] steadfasterX:
Go to the official TWRP thread (see my signature) and download the latest beta from there.

.
[G4 General] nurjihan:
ok thanks :)
[G4 General] lazostat:
after i installed SU and i rebooted to system it stucked on lg logo.. What should i do? And why this happen?
[G4 General] wor24:
I have the same problem. I cannot even turn it on recovery mode, just in download mode and i cannot flash the stock firmware because of an error.
[G4 General] BFruchtfliege:
u also can do the "flash recovery" method. Me just tested the install via booted TWRP, so i can say it works.
[G4 General] SAO:
I added an extra step just for security and to make it as clean as possible.

I don't have DRM problems.
[G4 General] Enddo:
LG's site says that going through the official method of unlocking the bootloader can affect apps and services that use DRM

http://developer.lge.com/resource/mobile/RetrieveBootloader.dev#

So I was just going off of that

---------- Post added at 09:40 AM ---------- Previous post was at 09:40 AM ----------

Awesome, thank you for this confirmation
[G4 General] SAO:
I don't have issues with Google play or Spotify. I don't know about other services.
[G4 General] S3V3N:
LG G4 (H815) the inability to unlock the bootloader :(

Error : "not found suffix"﻿

You need to wait until I fix
[G4 General] masze:
do u have v10A-EUR ?
[G4 General] S3V3N:
Yes

Wysłane z mojego LG-H815 przy użyciu Tapatalka
[G4 General] Kenishi99:
Does bootloader unlock, twrp and root wipes/deletes anything?

Will the phone set back to factory settings?
[G4 General] masze:
it should be v10A-EUR. (ur are diff)

Sent from my unlocked and rooted LG-H815
[G4 General] AvivEliyahu:
Mine is Israel (not a phone company though, from the official LG store here)

I guess I'll have to wait for other way to unlock bootloader
[G4 General] takeoff342:
Why you say Yes? You dont have a V10a-EUR Modell.....you have a V10-260-06. As a Rom cooker and Modder u should know that difference. So your Device is NOT unlockable, sorry.
[G4 General] hermeez:
I guess this will not work with software version V10a-TWN-XX

Any idea when this variant will be added????

Man this really suckssssssssss
[G4 General] IlyaKol:
It will not and no one knows.
[G4 General] NZStevenC:
This guide was brilliant... I was able to root my European H815 without a hitch. Thanks for putting time into setting it out and seeing down the multi-thread whinge brigade ;)

I'd vote for this, for what it's worth... this seems to be the most comprehensive approach and I suspect will remain so until an all-in-one package is built. As it was for me, this thread was on the third page of the G4 General section.
[G4 General] chandarakk:
when mine support or have other way to root i try UnlockBL but it show

The entered device information (model, IMEI, Device-ID) is correct. However, your device(Singapore, (ARROW(SINGAPORE)) )does not support unlocking the bootloader.

any Idea ?
[G4 General] Cr4z33:
It is my understanding that your Phone Operator has choosed to not allow to unlock the bootloader, but I might be wrong. :D

Sent from my Samsung Galaxy S6 Edge (SM-G925F)
[G4 General] SAO:
This Only works with the H815 EU model as described in red in the first post.
[G4 General] rirozizo:
Please change the title to H815 EUR only. Just to clarify.
[G4 General] SoreGums:
Excellent guide - though would have been nice if LG simply did what they did for the Nexus 5.

1) reboot device into fastboot mode, 2) fastboot oem unlock 3) fastboot reboot - done...

going to hold off on unlocking and rooting (though not sure how much longer I will, this stock DPI is seriously ****house [1])

[1] https://www.dropbox.com/s/v05hvgesztknmlu/Nexus.5_vs_LG.G4_DPI.png?dl=0
[G4 General] IlyaKol:
Someone should change first post to read: "As of today, June 28th..." not 'Until today, June 28th..." because the latter sounds like other phones will be unlockable after the 28th lol. Some people on this forum, who are duller than a butter knife, won't be able to understand the difference.
[G4 General] elsendn:
thank you - easy to follow guide!
[G4 General] chandarakk:
so i can i flash of mine to EU?
[G4 General] IlyaKol:
No. Otherwise everyone would have done that already.
[G4 General] bzdemes:
Just did this on my Euro LG and it worked great. Thanks.
[G4 General] mosec:
Can you please post the screenshot of your exact model. Mine is V10a-EUR-XX and can't unlock the bootloader. It says it's not supported :(

Thanks
[G4 General] stl-soldier:
Probably, but with an unlocked bootloader you can always just flash SU again.
[G4 General] Hakala:
You can change the dpi without root using adb

adb shell wm density 540

adb reboot

Can't go much lower than 540, because then stock apps/launcher will crash.

If you don't have adb, you can install this:

http://xdaforums.com/showthread.php?t=2588979
[G4 General] fpsq:
Please help me out here.

adb reboot bootloader

just returns:

[I]error device not found.[/I]

Yes, OEM unlock is on, USB Debugging is on, USB is set to MTP and the H815 installed a bunch of software on my Windows 7 Laptop. What else could I check? Screen is unlocked. I switch USB Ports to USB 2, Every time I plugin the device I do see the internal + the sd card memory and can access it and the device tells me USB Debugging is connected. What am I missing????:crying:

LG Installer was succesfull but 2 "Bluetooth devices unknown in Windows Device Manager!

Edit:

I solved it by switching to PTP. Only then I was asked to confirm the fingerprint and G4 and a AndroidNet Sonner Single ADB Inferface was installed.

Strange. My Nexus 5 I had to keep in MTP!
[G4 General] philou67:
It's not possible to unlock the bootloader, cause you are on s stock orange rom ... sorry. I have the same problem
[G4 General] rewtbawt:
Worked like a charm, but now...

I used this method to unlock bootloader, flash twrp, and get root.

But now there is a ~180 MB OTA update, and after it downloads and I confirm to "install now" it reboots into twrp, and does nothing. So in twrp I reboot back to system and it pops-up (after booting) a message whining about the phone being suspected to be rooted and thus the update can not be installed.

What can be done as a work-around here ? Do I unroot and try again, then re-root (is it safe) ? or is there a simpler trick ? Do I have to do this for every update now (supposedly it works) ?!?
[G4 General] pcoulson:
I was in the same position as you are now.

I flashed the 10C Rom in twrp from here...

http://xdaforums.com/g4/development/stock-h815-10c-stock-rom-kdz-t3141866

I just flashed the Rom - no need for the extras.
[G4 General] solokiller11:
I'm not sure about doing it but just wondered, my version is V10b-Eur-XX, will it work?
[G4 General] pcoulson:
My version was V10a-EUR-XX at the time of the above flash, and now it's V10c-EUR-XX

It's entirely up to you whether you want to flash V10c. I found the battery life is a lot more solid and touch-screen is more responsive so am more than happy with that!

You can switch off the auto "Software Updates" check now as any updates will come from zip (or KDZ) file from this site.

Cheers!
[G4 General] solokiller11:
Thanks for your answer but actually I'm a little worried about my Warrenty cause its A new phone (from yesterday) and unlocking it will remove the warrenty
[G4 General] meinstein1987:
I'm not sure if this is a suggestion not to into how this works but aren't or all of g4 coded similar ways.

Why can some one run memory trace when the phone is being boot loader unlocked to see how it is doing it both phone side and computer side and trace where and what and how it is unloacking the boot loader and apply it to the USA versions.

There has to be some kind of trail being left of what it is doing to unlock.

Sorry if I sound like a noob but I am just making a suggestion
[G4 General] dentralp:
[removed by dentralp]
[G4 General] vegetaleb:
The G4 here in Lebanon is H815, will it work or there is several H815 models?
[G4 General] force70:
As the title says 815EU ONLY

Sent from my Nexus 6 or Note 4
[G4 General] Craleb:
Delete
[G4 General] Sheo24:
Really easy to follow guide but I'm stuck after unlocking the bootloader. I get to a setup screen where I choose language, connect to wifi etc.

I think the phone is trying to install an OTA update. Because of the "verified boot" feature it probably detects that it's unlocked and brings me back to the "connect to wifi/data" screen without any error messages. At least I think this is what is happening. Does anyone know how I can stop it from trying to update or how to access my phone

I'm completely locked out and have no idea what to do. PLEASE HELP!

Edit: I'm using the H815EU version.
[G4 General] tomh12player:
Does it say "Service Unavailable, please contact the site admin" for anyone else after clicking confirm to recive the unlock bootloader email? (After IMEI and Device-id)
[G4 General] Craleb:
So I must be dumb, i bought an h815 unlocked g4, and it has software version VX10b-EUR-XX but lg give me "unfortunately your device (united states-USA) cannot be unlocked.....

-_- I thought it was the EU version??
[G4 General] datvu:
Is possible to relock bootloader after unlock ?
[G4 General] force70:
Not at this time as per LG.

And what would be the point anyway?

Sent from my Nexus 6 or Note 4
[G4 General] solokiller11:
Just a question (I have only a little knowledge about it), if to unlock the bootloader it requires the unlock.bin so can't we create from a locked bootloader something like lock.bin and flash it?

Or like to compare log from locked and unlocked bootloader and make a new bin file?
[G4 General] datvu:
I was relocking bootloader on my Xperia Z in case of Complaint.
[G4 General] Evnul000:
It says the same for me too.
[G4 General] alain57:
I have the same version and i didn't tried yet.

there is still something surprising, as other people have a C version and as my phone says : no update available (i guess it was A version before but got and OTA that i installed)

---------- Post added at 11:35 AM ---------- Previous post was at 11:31 AM ----------

if there is some material failure to relock it so that LG will not say : hey dude your device is unlocked, sorry but no warranty...

I find that LG should not do that ...

that there is no support for custom roms is normal

but the warranty about the HARDWARE should however stay...

If you got an issue with CPU, RAM, or Memory it would be too easy for LG to say : it is because of some custom software...

I mean lets pretend your touchscreen is not working well, why should a custom rom have any responsability and remove the warranty.... this is insane.
[G4 General] raber111:
<suffix>ATWNWH</suffix>

thats my suffix . can i unlock bootloader?
[G4 General] erany1:
help...

Nothing happens after I insert the second command ("fastboot oem device-id") - cmd window shows:

"< waiting for device >" & that's it. Nothing happens after that.

Trying to reset by command - fails. 10 Sec power off - also fails.

Lucky to be able to pull out the battery & restart the phone.

I have tried more than 5 times. I saw in another thread that someone mentioned it might be admin issues - I am the administrator on my PC & also running the "Minimal ADB and Fastboot" as admin.

Can you please say what am I missing here...?

thank's!
[G4 General] the_scotsman:
Sounds like a driver issue. With the phone in Fastboot mode and connected via USB, check device manager to ensure the "android device" is detected and installed.
[G4 General] erany1:
seems you are wright. android device is there when connected regularly... but marked withe yellow exclamation mark in fastboot mode.

how do i fix it?
[G4 General] the_scotsman:
Reinstall the drivers while the phone is connected in fastboot mode. That might work. Ensure you are using the correct drivers.
[G4 General] erany1:
i connected my phone first, it automatically installed the drivers on the computer. but how can i get it now to reinstall when i'm connected in fastboot mode?
[G4 General] the_scotsman:
Download this driver: http://downloads.codefi.re/autoprime/LG/LG_G4/LGUnitedMobile_Win_Driver_Ver_3.14.1.exe - Windows auto drivers won't work.
[G4 General] zolom:
For my european g4 (unlockable bootloader) is it recommended to use the method on the OP, or use the new rooting method (for most variants) that was published yesterday?

Thanks
[G4 General] AzuriaN:
Hi. It says that my IMEI and device-id doesn't match, but I'm sure i've checked atleast 10 times at it is correct! I think you have like 10 times on you to make it before they close your account, I have 2 left. Anyone know what the problem is?
[G4 General] MrDeacon:
Exactly the same problem here with my GF's G4. I thousand-checked the numbers, everything is put in correctly. I emailed LG Dev and filed a complaint. A G4, bought at SIBA, with the correct model number, should in all fairness be unlockable.
[G4 General] AzuriaN:
Maybe it's because we are swedish :silly:
[G4 General] AzuriaN:
I managed to get root access via "Low Effort Root", so it's no problem anymore. :D

EDIT: Well, I need to unlock to get custom recovery..

EDIT2: I got them matched finally, but my carrier says no. :(
[G4 General] MrDeacon:
Sometimes, being a Swede just blows. :)

Managed to get it working, though. Temporary issues with the LG Dev site.
[G4 General] acs111:
Im wondering the same thing, root via LG dev site or Root via new Root method
[G4 General] the_scotsman:
Unlocking the bootloader will void your warranty. This one will not.
[G4 General] RenaKunisaki:
Has anyone analyzed this unlock.bin file? Are there some of them online we can look at? Would be interested to see if there are any interesting patterns to it.
[G4 General] Antaroo:
Request URL

/main/Register.dev

Date

01/08/2015 14:37:45

Message

Service Unavailable. Please contact the site administrator (developer@lge.com).

Right...so what now ? LG doesn't allow me to register
[G4 General] xxsashixx:
Apparently I have the USA variant of the h815? I try to get an unlock file via lgs site but gives me an error saying that my USA device cannot be unlocked.

In the future will we be able to unlock bl?
[G4 General] the_scotsman:
No, not using the LG website. They've said no other models will be available to unlock.
[G4 General] xxsashixx:
So as of right now I cannot install twrp correct?
[G4 General] the_scotsman:
Correct. All you can do is root.
[G4 General] MagiCminD:
Hi there

Looks like Portuguese TMN / MEO also has a no go on LG unlock.bin

I'm thinking that these codes must be made by some algorythms so... anyone knows any software that might calculate them?

I've seen them for sony xperia and some others.... May be I could find a way to do it...

But I have never seen an LG G4 unlock.bin file.

OR L G4 calculations.

Any ideas?

Fernando
[G4 General] fpsq:
Hi,

check this thread for discussion and a unlock.bin file! :fingers-crossed:

http://xdaforums.com/g4/help/unlock...e-unlocked-t3165391/post62250846#post62250846
[G4 General] datvu:
HI I have some questions about unlocking bootloader. If I root my phone and backup DRM partition. Can I lock bootloader with restore of DRM partition ? When I unlock bootloader my internal memory and data stay untouched or will be erased ?
[G4 General] android404:
Is it safe to unlock the bootloader of a rooted phone, or should one go back to stock before unlocking?
[G4 General] Heisenberg420:
Are h815’s with swedish country code not unlockable?

Im trying to track down a h815 eur thats unlockable shipped to US i thought all european country codes should be unlockable?
[G4 General] MrDeacon:
They are unlockable. Phones sold through certain carriers (i.e. "3", or "Three") are not, however. Not sure how they differ from the common h815, though. The standard European G4 should be unlockable, regardless of country.
[G4 General] Jxx7:
Hi,

I tried to unlock the bootloader but I get this message on the LG website :

"Unfortunately, your device(France, (SFR(FRANCE)) )does not support unlocking the bootloader."

Does it means that the unlock depend also of the operator (SFR in this case)?

I bought an unlock code to be able to put my SIM card (not SFR). Will I be able to unlock the bootloader after that?

Thank you for your help.
[G4 General] Mejilan:
Sounds like that's a branded H815 (specifically belonging to mobile company SFR).

Only the unbranded EU H815s can be unlocked using LG's Dev site.

And no, a SIM unlock code will now allow you to unlock the bootloader.
[G4 General] Nytronx:
nooooo ! everything got erased on my phone :/ am I the only one ? btw the bootloader is correctly unlocked, but all my data are gone :/
[G4 General] force70:
I don't see how with and ext sd card slot on the device anyone loses anything these days?

Backup first... Flash after.

I had to learn the hard way also when i was new to all this stuff :D

Sent from my Nexus 6 or Note 4
[G4 General] vegetaleb:
Is the H815p compatible with this method? It's an international version sold by LG Lebanon. And btw what are the advantages of unlocked bootloader apart twrp now that we can flash img ?
[G4 General] espesito07:
Hı i use h815tr i Wonder if i Install Flash euro kdz can ı Install recovery
[G4 General] kaiowas82:
from 1st september official unlock works for every european h815, regardless of the carrier, as stated here http://developer.lge.com/community/...nuId=55&contsTypeCode=NOT&prodTypeCode=MOBILE

i tried when i bought the phone and the site was saying the phone was not unlockable (3UK) now i tried again and i just received my unlock.bin in the mail....finishing my backup then trying :)

edit

Bootloader unlock successfull...happy boy over here, and my data is not been deleted too :D
[G4 General] RenaKunisaki:
Cool, so after one of the major factors for me to choose the G4 was that bootloader unlocking was officially supported and would be coming to more devices, now it's not coming after all to us Canadian suckers. More reason to keep digging for an unofficial unlock...
[G4 General] RenaKunisaki:
Oh, if people are planning to unlock, it'd be awesome if they made a full dump of the eMMC before and after, so we can compare and see what all happens when you do it.
[G4 General] gabripo93:
No issues on h815 eu

G4 runs like stock version (if you don't install mod) in apps
[G4 General] vegetaleb:
Any news about progress for full root(with recovery) for our G4s?

Since the low effort root is out it's very silent
[G4 General] xNAPx:
How can I figure out if my phone is EU or not?
[G4 General] prophecyny7:
Still no unlock for the US Giveaway version of the H815. Surprised since they don't give any support (updates and the like) for this phone that they are not allowing for it to be unlocked at the moment.
[G4 General] SixStringSW:
"Unfortunately, your device (Singapore) does not support unlocking"

I purchased an "unlocked" G4 (LGH815) from Amazon. After going through the painful unlocking procedure, the process failed at the last step, emailing the unlock bin from LG, with the message "Unfortunately, your device (Singapore(ARROW(SINGAPORE))) does not support unlocking the bootloader.

Any advice on how I can root this device, please? Thanks.
[G4 General] the_scotsman:
Unlocked means not network/carrier locked. it doesn't mean bootloader unlocked.

You can root using the low effort root in the original dev forum.
[G4 General] SixStringSW:
Thanks, I'll give it a try once I get my courage up. :)
[G4 General] zoreli:
LG G4 H815 10D - installed successfully TWRP 2.8.7.0 and ROOT-ed with SuperSU 2.46

Thank you :good: :)

Edit: having problems with TWRP 2.8.7.0 (overwrited by system recovery on each reboot) , installed TWRP 2.8.6.1 and now seems to be OK .
[G4 General] slamX:
Helo..how did you manage to get th id for your phone?i have been trying..all it says is waiting for device...i hv h815 European
[G4 General] vegetaleb:
Thanks for the tutorial,my g4 has root and twrp :)

Now the big question: If I flash a kdz file to update to latest FW, will I loose twrp and the bootloader will relock??
[G4 General] pcoulson:
You will lose root and TWRP.

The bootloader stays unlocked.
[G4 General] vegetaleb:
That's good news then!

I mean at least I won't have to go into unlocking process and wipe all internal user data :D

So I just have to pick the no data wipe option in KDZ flashing to update from 10e to 10h (using kdz 10h file), then use the OP tutorial starting from the point after the G4 has the unlocked bootloader right?
[G4 General] pcoulson:
That's it, precisely.

Use the "Normal" flash within LG Flash Tool 2014. Your app data won't be deleted.

Once flashed, install TWRP and Root.
[G4 General] dan34321:
Hi, i may well be posting in the wrong bit here, so apologies in advance...and please forgive my lack of lnowledge, still learning lol-

If i may pose a question regarding inlocking the bootloader via lg official meathod - i would like to know, if i use titanium backup to store system and app data, could i unlock the bootloader, install twrp or cwm recovery and then restore my stuff via titanium?

I am using lg g4 815 v10c - rooted

Thank you all in advance!
[G4 General] Mazupicua:
For the people having this issue...

this helped me, hope it helps some people. Sadly my phone was made in taiwan which i find stupid from lg since it is still the h815 :(

http://xdaforums.com/g4/general/unlock-bootloader-install-twrp-root-t3128241
[G4 General] RenaKunisaki:
I think all the G4s are made in Taiwan. It's just which market they're sold in that matters.
[G4 General] darrenjdoc:
Is it possible to remove the warning sign when the phone is booting?
[G4 General] tansy:
Someone could help me with this problem?

Thanks and regards

http://xdaforums.com/showpost.php?p=63216711&postcount=255
[G4 General] yossitay1:
hi,

someone can tell me when LG will unlock the bootloader of LG G4 H815 singapure version?

thanks
[G4 General] RusherDude:
Great guide, but one question. Once the bootloader is unlocked, why do we have to 'boot' the recovery image, root, install flashify and THEN flash the recovery? can't we just flash the recovery on fasboot? I'm a nexus user and I'm used to that, and I don't know if there is any problem trying to do "fastboot flash recovery twrp.img" like usual here.

It would be way faster:

fastboot flash recovery twrp.img

fastboot reboot recovery

<flash su>

done
[G4 General] p4inkillz:
Hi all, 'ive done all right i think but when i "ask" the device ID via cmd i always get stuck in "waiting for device".

Now:

i have italian phone brand Vodafone

i flashed with flashtool the poland no brand v10d, all ok

i installed driver adb etc, including the lg bridge (i've read someone solved installing it)

But, nothing, always waiting for device.. Can someone help me? :D
[G4 General] Donald K.:
Does it say waiting for device after you did the cmd: adb reboot bootloader?

If so, go to control panel and device manager.. There you should see when you scroll down a bit: android with a yellow triangle. Right click and update driver, select from your pc and select from the list.. You should choose something with bootloader.

Now if its still stuck on waiting, restart your phone and re-open cmd.. Try it again and it should work.
[G4 General] Kroutnuk:
Be sure to have the latest ADB version.

I had the problem because I had a lower version.
[G4 General] p4inkillz:
i've solved!

i had already read about the different driver between smartphone and fastboot mode. i saw the "android" with the yellow triangle in device manager so i tried randomly and i activated auto download from windows update. Then it changed name in something with ALcatel, i don't remember exactly but i tried to execute commands in cmd and it worked!

Thanks to all :)
[G4 General] pre4speed:
I looked thru this thread but didn't see my exact problem. I was running a 10e rooted.img, then unlocked my bootloader on my EU H815. Used flashify to install twrp, used lg restore to restore phone. Chose the ROM I now want to install, entered TWRP to make a backup and flash but my external sd shows 0b and won't let me mount. In Android, I have more than 20 gb free. It is formatted fat32. Any ideas?

Update: decided to try formatting as exfat. Still doesn't show in TWRP. Is there anyone that has any fixes, ideas, help?