[G4 General] SAO:
edit : As of today - 28th June, this method ONLY works on the H815 EU models

update 26th July : Please go check the dream team's ROOT thread located here : [ROOT] TMO/VZW/ATT/SPRINT/INTL Root your LG G4 with Low Effort Root!

Thanks [MENTION=1157052]thecubed[/MENTION] , [MENTION=2684188]autoprime[/MENTION] , [MENTION=6053822]IllegalArgument[/MENTION] & [MENTION=2376614]jcase[/MENTION] for their hard work

Hi guys, a quick step by step guide to how I was able to unlock, install TWRP and Root my H815. Please don't hold me responsible if any issues arise with your phone. If you do this, you take your own responsibilities.

I tend to download all the tools in a single folder so it is easier to manage.

The LG Site:

1. go to this LINK and register.

2. you will get a confirmation email.

3. go to this LINK to unlock your bootloader (you will find the information on how to get your IMEI and Device ID lower in the post)

Your PC :

1. Be sure to have the LG drivers (i connected my phone first, it automatically installed the drivers on the computer.

update 27th July :

thanks [MENTION=278202]the_scotsman[/MENTION] in case you have driver issues please download these provided by [MENTION=2684188]autoprime[/MENTION] : LGUnitedMobile_Win_Driver_Ver_3.14.1

2. Be sure you have installed the ADB stuff that can be found here : Minimal ADB & Fastboot & ADB Installer (type Y to all the questions asked)

Install Minimal ADB first. Then type Y to all the questions the ADB installer asks. Close both windows once done.

Download TWRP 2.8.7. for H815:

1. go to this LINK and download it. Add it to your folder

Download SuperSu 2.46:

1. Download SuperSu 2.46 HERE (thanks [MENTION=631273]Chainfire[/MENTION] ) and add it to your folder

PC & G4 love :

Once you are sure you have completed all the above tasks start rolling :

A. Enter your IMEI on the LG page

- you can find your IMEI on the G4 by going to settings > about phone > status

B. Get your Device ID:

1. hook up your LG on your PC (be sure not to be locked on your lockscreen, That USB debugging is checked and OEM checked in the Developer Options)

2. launch your CMD and type:

adb reboot bootloader

your phone will reboot

3. type this to get your Device ID

fastboot oem device-id

4. You will see two lines of number. Copy them and paste them together (to make one line) in the the Device ID fields on the LG site.

5 type :

fastboot reboot

5. close CMD

5. click Confirm on the site and you will receive by email a file called : unlock.bin.

Unlocking your bootloader:

1. once you get your LG email, save the unlock.bin in your folder

2. launch CMD from the folder (hold shift, right click the folder)

3. in CMD type :

adb reboot bootloader

4. once your phone is rebooted in bootloader type :

fastboot flash unlock unlock.bin

5. then reboot your phone by typing :

fastboot reboot

Normally your phone now has it's bootloader unlocked. When it boots you should see a message on the top left of the screen saying that.

COPY SuperSu and the downloaded TWRP file onto your phone (i put it in the download folder in the phone, not the SD) so you are ready for the next steps

Booting TWRP via ADB and bootloader mode

I personally think this was the easiest way to be able to root and clean install TWRP. Be sure your TWRP is in the folder.

1. Launch CMD from the folder (hold shift, right click the folder)

2. type (again) :

adb reboot bootloader

3. once your phone reboots and is in bootloader mode type :

fastboot boot TWRP2861.img

the new name of the file

or

fastboot boot p1.img

if you didn't rename it.

4. now you will reboot into TWRP.

Installing SuperSu

1. once you are in TWRP click install and go find your SuperSu file.

2. Swipe to install.

3. Once installation is done, reboot to system.

Once you have rebooted into the OS you will find the SuperSu app. Download the TWRP manager just to have it handy. And now i would install the TWRP file you have copied on your phone with flashify. I think it's a great tool.

2 ways to do it:

1. locate the file, click on it and choose to open with flashify then choose recovery and follow the steps

2. find the file via flashify and install.

(Don't download TWRP for H815 in the TWRP manager or Flashify as they are not fixed by [MENTION=608699]wolfgart[/MENTION] (correct me if I am wrong))

once all this done and rebooted. Your phone will have TWRP and would be Rooted. Choose the TWRP manager to boot into recovery when you want.

I preferred to reboot the phone every time just to be sure...

If you have any comments, or i wrote something wrong, don't hesitate to correct me.

Have fun

UPDATE : Thanks to [MENTION=2684188]autoprime[/MENTION] you can also update your H815 EU to the latest Stock ROM : 10C (don't forget to thank him, as those guys are working hard to make your life easier!)

[MENTION=278202]the_scotsman[/MENTION], maybe you can pin this to help the lost souls until a one app does it all appears?