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Now I've unlocked bootloader on H815...

awes0me1

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Can anyone please give me any helpers on the easiest way to Root and install TWRP on my H815, Im in the UK and Im running MM 20a official rom.
I have rooted other phones but not this is a new phone and isn't as straight forward as my G2 was.

Thanks in advance.
 
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HIshan Pavidu

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Can anyone please gibe me any helpers on the easiest way to Root and install TWRP on my H815, Im in the UK and Im running MM 20a official rom.
I have rooted other phones but not this is a new phone and isn't as straight forward as my G2 was.

Thanks in advance.
https://youtu.be/epcXXkMPRWk

If u go with step by step it willbe easier make sure to download correct files

Sent from my LG-H815 using Tapatalk
 
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awes0me1

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Thank you for responding... I noticed the file I need to download (the big 4 gig image file is h815 10c which is LP.... but I'm on MM . Do I need to down grade of us there a for for MM?

Thanks again.

Sent from my LG-H815 using Tapatalk
 

awes0me1

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Last edited:

Jens1969

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Thanks for responding...
I think I need to be already rooted to use this method, dp I not ?
I need to root and install twrp.
When i had my G2, the forums was buzzing with new Roms, it was pretty much a bullet proof phone, i was hoping for the same with the G4, pretty gutted that its so quiet in these forums for this phone.
No. Just install twrp. Reboot into twrp and install supersu. Be sure to not let twrp auto-install anything to root your phone.
 
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dohouch

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Oct 8, 2010
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how do i boot into recovery please?
Hope your TWRP sticks, I'm new to this and it took me 3 attempts to get it to stick.

To get into recovery
  1. Hold both power button and volume down button pressed
  2. At first sight of LG logo release power button 1 second, Still holding volume down, then repress power button.
  3. You should now get white screen with just 2 options, select "Reset" , Select with Power button, scroll with volume up/down
  4. Again get white screen and confirm reset
  5. If TWRP is on phone it should now appear.
  6. If its not you are in for a Factory Reset
:
Now do a default backup in TWRP (very handy this)
Then move systemless root zip to phone.
In twrp select install find your "systemless root zip " flash , then reboot using "System" DO not accept option to root your phone offered after selecting- reboot>system.
Hope its goes well
 
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awes0me1

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Hope your TWRP sticks, I'm new to this and it took me 3 attempts to get it to stick.

To get into recovery
  1. Hold both power button and volume down button pressed
  2. At first sight of LG logo release power button 1 second, Still holding volume down, then repress power button.
  3. You should now get white screen with just 2 options, select "Reset" , Select with Power button, scroll with volume up/down
  4. Again get white screen and confirm reset
  5. If TWRP is on phone it should now appear.
  6. If its not you are in for a Factory Reset
:
Now do a default backup in TWRP (very handy this)
Then move systemless root zip to phone.
In twrp select install find your "systemless root zip " flash , then reboot using "System" DO not accept option to root your phone offered after selecting- reboot>system.
Hope its goes well
Yeah for some reason TWRP isn't sticking...tried 4 times now.
Im using 'adb reboot recovery' command and there is no recovery :(
I think im doing it right....thanks for your help btw, its much appreciated :)

Can you point me to the Twrp version you used ? Im wondering if im flashing wrong version ??
 
Last edited:

Dante897

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This is my TWRP twrp-2.8.7.0-h815.img

Have a look at this post
I am on the same boat as OP. I unlocked the bootloader after updating to Marshmallow, so I didn't have TWRP from Lollipop. Now, even though it says that the flashing went okay, there is no recovery to boot into. Using "adb reboot recovery" it shows the android logo with the exclamation mark. If I do it using the hardware buttons, I get the LG's menu to wipe everything or exit.
 
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awes0me1

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I am on the same boat as OP. I unlocked the bootloader after updating to Marshmallow, so I didn't have TWRP from Lollipop. Now, even though it says that the flashing went okay, there is no recovery to boot into. Using "adb reboot recovery" it shows the android logo with the exclamation mark. If I do it using the hardware buttons, I get the LG's menu to wipe everything or exit.
Yes...ive tried 10 times now and still no recovery. It says "OK" in adb after flash but no recovery.

Any ideas?

Sent from my LG-H815 using Tapatalk
 

dohouch

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Oct 8, 2010
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Kerry
I am on the same boat as OP.
If you have root there are many apps on play store such as : quick boot, simple boot, quick reboot. Install one of these and and they all all have options for reboot, hotboot, boot to recovery, etc. etc.
I have TWRP on my phone and if I use the standard way to enter recovery , power+volume down, then I will get the standard LG recovery screen but when I accept the recovery options there, it takes me to TWRP
 

Dante897

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If you have root there are many apps on play store such as : quick boot, simple boot, quick reboot. Install one of these and and they all all have options for reboot, hotboot, boot to recovery, etc. etc.
I have TWRP on my phone and if I use the standard way to enter recovery , power+volume down, then I will get the standard LG recovery screen but when I accept the recovery options there, it takes me to TWRP
That's the problem, I don't have root. I need TWRP to flash the SuperSU zip, don't I?

EDIT: Wait, do I need to say yes on the stock LG recovery first? The one that says wipe everything?
 

dohouch

Member
Oct 8, 2010
55
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Kerry
That's the problem, I don't have root. I need TWRP to flash the SuperSU zip, don't I?

EDIT: Wait, do I need to say yes on the stock LG recovery first? The one that says wipe everything?
@ Dante897 No, if you don't have TWRP then don't. don't say yes to LG Recovery or you'll loose everything . You can also run TWRP on your PC and install systemless root zip that way. That maybe what I did, I can't exactly remember now.

I'm off to bed now, last night was a late night too.
 

Dante897

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I figured it out. You aren't supposed to flash the recovery., you are supposed to boot to it, flash SuperSU and then use Flashify to install TWRP. I did that, but I flashed the wrong SuperSU (I am an idiot I know) and my phone won't boot now. Currently I am in download mode and downloading the rom with LG Bridge . You can follow the guide here if you want http://forum.xda-developers.com/g4/general/unlock-bootloader-install-twrp-root-t3128241 but whatever you do DO NOT flash SuperSU 2.46, grab the newest from here http://forum.xda-developers.com/showpost.php?p=64161125&postcount=3

I cannot say that it will work, all I can tell you is that 2.46 certainly doesn't work.

EDIT: Alright, I let LG Bridge install the update, no wipe happened. I did the process again, this time I flashed SuperSU v2.62-3 and everything went well and my phone is now rooted.
 
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daniel4653

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Yeah for some reason TWRP isn't sticking...tried 4 times now.
Im using 'adb reboot recovery' command and there is no recovery :(
I think im doing it right....thanks for your help btw, its much appreciated :)

Can you point me to the Twrp version you used ? Im wondering if im flashing wrong version ??
I also had an issue with TWRP sticking. I followed someone else's tip and you have to have the twrp IMG saved on your computer and also on the phone before flashing recovery with fastboot.

Sent from my LG-H815 running CM13
 

awes0me1

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Jun 22, 2012
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I figured it out. You aren't supposed to flash the recovery., you are supposed to boot to it, flash SuperSU and then use Flashify to install TWRP. I did that, but I flashed the wrong SuperSU (I am an idiot I know) and my phone won't boot now. Currently I am in download mode and downloading the rom with LG Bridge . You can follow the guide here if you want http://forum.xda-developers.com/g4/general/unlock-bootloader-install-twrp-root-t3128241 but whatever you do DO NOT flash SuperSU 2.46, grab the newest from here http://forum.xda-developers.com/showpost.php?p=64161125&postcount=3

I cannot say that it will work, all I can tell you is that 2.46 certainly doesn't work.

EDIT: Alright, I let LG Bridge install the update, no wipe happened. I did the process again, this time I flashed SuperSU v2.62-3 and everything went well and my phone is now rooted.
Finally managed to do it, thank you and everybody for all your help. Anyone else having trouble follow Dante897's post.

Thanks again :)
 
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