[HOW TO] Bootloader Unlock any G7 ThinQ except T-Mobile w/o octoplus

[loonycgb2]

This method is now considered obsolete, Please checkout the EDL process as it is safer and easier to do

https://forum.xda-developers.com/lg-g7-thinq/how-to/howto-unlock-bootloader-root-g7s-t-mo-t4077105

In this guide we will be using the ULM firmware to do the needed unlocking so if you have any data you need to keep, then please backup any all data before starting.

Sprint users will be stuck on ULM and T-Mobile DO NOT TRY THIS!!

This instruction was made for testing and educational purposes. Use this instruction only at your own risk. Contributors or someone else are not responsible for bricked or broken devices.

First you will need to flash ULM firmware to proceed with the guide by using this link to flash the firmware:

Url to guide to flash firmware:
https://forum.xda-developers.com/lg-g7-thinq/how-to/cross-flash-oreo-pie-firmwares-lg-g7-g7-t3915303
Firmware needed:
https://lg-firmwares.com/downloads-file/17341/G710ULM11g_01_NAO_US_OP_1112.kdz

After you have flashed ULM 11G rom check if you can still enter bootloader.
Easy way to check if doing the following command:

adb reboot bootloader

If you can then boot using the following boot image 710ULM11g_rootedboot.img with:

Boot image download:
https://www.androidfilehost.com/?fid=1899786940962574205
Command to boot it:
fastboot boot 710ULM11g_rootedboot.img

After that install magisk manager as the boot image is pre-rooted with Magisk.
Enable usb debugging in developer settings, also enable oem unlock in dev settings, and copy over file abl_a.img to internal storage
Now use adb shell to run the following command as SU:
(yes this is 2 different commands!! And they will fail if not run as SU)

ABL_A image download:
https://www.androidfilehost.com/?fid=1899786940962574206
Commands to flash abl_a:
dd if=/sdcard/abl_a.img of=/dev/block/bootdevice/by-name/abl_a
dd if=/sdcard/abl_a.img of=/dev/block/bootdevice/by-name/abl_b

Now reboot to bootloader by doing:

adb reboot bootloader

Now issue this fastboot command:
This will erase all data!

fastboot oem unlock

Thats it! You are now bootloader unlocked.
If you are on sprint you are stuck on ULM which is fine, but updating to ULM Pie will lose fastboot so stay on oreo for now!

Any other device other than G710PM can use lgup to flash back to there respective firmware, but as of now only EM/EMW/ULM current have root till others create a rooted firmware to flash to or twrp is created for the other firmwares.

Credits to: Lame Monster & Hạo Thiên

 

[loonycgb2]

This post will serve for any other important information.

Sprint
Once you are on ULM the data/wifi will continue to disconnect, so try your best to skip thru setup.
Then once past setup, fill in your correct apn settings:

Name: internet
APN: x.ispsn
Proxy: Not Set
Port: Not Set
Username: Not Set
Password: Not Set
Server: Not Set
MMSC: http://mms.sprintpcs.com
MMS Proxy: oap7.sprintpcs.com
MMS Port: 80
MCC: 310
MNC: 120
Authentication Type: Not Set
APN Type: default,supl,mms,cbs,ia
APN Protocol: IPv4/IPv6
APN Roaming Protocol: IPv4
APN Enable/Disable: APN Enabled
Bearer: eHRPD, LTE
MVNO Type: None

Now let the LTE connection stabilize and once it does check your notification and press cancel on the sprintDM connection update.
Then disable sprintdm.apk which will now leave you will a fully functional working connection after reboot. If you happen to lose your profile settings for sprint or need to update connection settings like a profile update then re-enable sprintdm.apk

 

[saba222]

Will it work on verizon?

 

[loonycgb2]

Will it work on verizon?

It should, following this process will not brick your device as you will still have download mode available.

Also the VZW kdz is available.

 

[joaovictor.me]

Can we lock bootloader again?

 

[loonycgb2]

Can we lock bootloader again?

I would not, the attempts to do so have caused bricked phones.

 

[brigantti]

Any hope fot t-mobile g7?

 

[sandronejm]

Works for EMW?
Loved totally this tutorial!!!

Edit: I got my bootloader unlocked with success.

 

[jeck00119]

Works for LG G7 + ThinQ (G710EAW) ?

 

[loonycgb2]

I mentioned the ones it did not work for which is t-mobile so all others should be fine.

 

[gilnfld]

I mentioned the ones it did not work for which is t-mobile so all others should be fine.

Thanks for the guide and the custom boot image for the ULM release. I am currently running a Canadian AWM device, stock, with the latest official pie update. It does NOT have any access to fastboot and has never had any access to fastboot (unless it was flashed with the custom engineering V35 bootlaoader method via Octoplus). On stock unmodified, I have tried to cross flash several different ULM Oreo KDZ files and even EM kdz files with hopes of getting fastboot opened up but with zero luck; can never get it to enter bootloader mode.

gs

 

[Inerent]

Well done! Nice!

 

[loonycgb2]

Thanks for the guide and the custom boot image for the ULM release. I am currently running a Canadian AWM device, stock, with the latest official pie update. It does NOT have any access to fastboot and has never had any access to fastboot (unless it was flashed with the custom engineering V35 bootlaoader method via Octoplus). On stock unmodified, I have tried to cross flash several different ULM Oreo KDZ files and even EM kdz files with hopes of getting fastboot opened up but with zero luck; can never get it to enter bootloader mode.

gs

Did the guide work for you?

In the guide we also use the v35 engineer bootloader to unlock. But with the ULM being used in the guide it gives us access to fastboot.

It was the same for PM devices, we had no access to fastboot unless we flashed ULM oreo and then we could atleast load a custom boot.

 

[mr3p]

Thanks for the guide and the custom boot image for the ULM release. I am currently running a Canadian AWM device, stock, with the latest official pie update. It does NOT have any access to fastboot and has never had any access to fastboot (unless it was flashed with the custom engineering V35 bootlaoader method via Octoplus). On stock unmodified, I have tried to cross flash several different ULM Oreo KDZ files and even EM kdz files with hopes of getting fastboot opened up but with zero luck; can never get it to enter bootloader mode.

gs

Are you saying you were unable to crossflash to ULM Oreo or that after flashing Oreo kdz you still do not have fastboot?

 

[gilnfld]

Did the guide work for you?

In the guide we also use the v35 engineer bootloader to unlock. But with the ULM being used in the guide it gives us access to fastboot.

It was the same for PM devices, we had no access to fastboot unless we flashed ULM oreo and then we could atleast load a custom boot.

Are you saying you were unable to crossflash to ULM Oreo or that after flashing Oreo kdz you still do not have fastboot?

Hello folks,

Sorry I should have been a bit more clear in my earlier message. What I meant to say is that while, no, there is no problem crossflashing the ULM kdz file or any other kdz file from the EM, EMW etc versions this will NOT open up access to fastboot if the device did not have such access on Oreo to begin with, which is the case for the AWM version. I cannot speak about other versions of the G7ThinQ, but with the Canadian model, -- the G710AWM -- booting up a unit with stock, locked bootloader to fastboot/bootloader mode is simply not possible regardless of which KDZ you cross flash on it; I have tried them all. I believe there is a flag in the original bootloader that prevents access to fastboot. The only way to do this with the AWM model is to flash a modified Bootloader using Octoplus or other such programming software.

gs

 

[mr3p]

Just to confirm, you flashed G710ULM10g_00_NAO_US_OP_0913.kdz and you still had no fastboot?

 

[gilnfld]

Just to confirm, you flashed G710ULM10g_00_NAO_US_OP_0913.kdz and you still had no fastboot?

Hmmm, no I didn't try that specific KDZ as it is the 10g firmware and not the one used in the guide which is a newer ULM Oreo firmware, the 11G. Is there something special about the firmware you are asking about?

 

[mr3p]

10g is GFI, 11g is BPT. I doubt it matters but you might confirm.

 

[loonycgb2]

The multiple firmwares have different restrictions as google fi might be more open to fastboot but not unlocking and bpt may restrict everything.

 

[244631232]

G710tm is crying