Welcome to the GSM-Tutors Forum!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features.
Only registered members may post questions, contact other members, search our boards or view our download links. Registration is fast, simple and absolutely free so please - Register

If you have any problems with the registration process or your account login, please read this forum.

Unable to Register or Login? Head to Board, Server, Registration and Login Issues/Support 📢

[SOLVED] LG K40 bootloader

General LG Android phones discussion, firmware, solution, root, help.
VoguePay
Post Reply

Topic Author
jasmin811
Senior Member
Posts: 28
Joined: Thu Sep 12, 2019 5:02 pm
Location: Bosnia & Herzegovina
Status: Offline
Bosnia & Herzegovina

[SOLVED] LG K40 bootloader

#1

Unread post by jasmin811 » Sun Dec 01, 2019 7:06 am

Hello everybody,
It is nice that this forum is back and keep the good work.
I have This phone lg k40 and what I want to ask how to unlock the bootloader?
When I tried to go to fastboot mode the phone just restart it and goes straight to system either with recovery also.
The commands "adb reboot bootloader" seems doesn't work and "adb reboot recovery"also.
I checked in lg bootloader page and i didn't found my phone in supported list for unlocking the bootloader.
So my question is there any other solution to unlock it?
Thank you forwardly for answers.


User avatar

RomShillzz
Administrator
Administrator
Posts: 925
Joined: Fri Jun 15, 2018 12:00 pm
Location: Nigeria
Donate: Image
Has thanked: 6 times
Been thanked: 58 times
Status: Offline
Contact:
Nigeria

Re: LG K40 bootloader

#2

Unread post by RomShillzz » Sun Dec 01, 2019 9:45 am

Make sure you have properly Installed ADB (https://www.youtube.com/watch?v=8w9yzudXH38) and LG Bridge in your PC, then Enable OEM Unlocking and USB Debugging in your device. After this, try the bootloader unlocking process and post results.

Use Search Button to get Instant Results | Follow Forum Rules
Avoid Spams in the forum to prevent banning the offending account. | https://romshillzz.net


Topic Author
jasmin811
Senior Member
Posts: 28
Joined: Thu Sep 12, 2019 5:02 pm
Location: Bosnia & Herzegovina
Status: Offline
Bosnia & Herzegovina

Re: LG K40 bootloader

#3

Unread post by jasmin811 » Mon Dec 02, 2019 8:56 am

I tried that allready,I don't have fastboot and recovery at all.


User avatar

RomShillzz
Administrator
Administrator
Posts: 925
Joined: Fri Jun 15, 2018 12:00 pm
Location: Nigeria
Donate: Image
Has thanked: 6 times
Been thanked: 58 times
Status: Offline
Contact:
Nigeria

Re: LG K40 bootloader

#4

Unread post by RomShillzz » Mon Dec 02, 2019 9:45 am

jasmin811 wrote:
Mon Dec 02, 2019 8:56 am
I tried that allready,I don't have fastboot and recovery at all.
Connect your device (USB Debugging Enabled), Go to C:\adb, Hold the Shift key and right click on any empty space inside the folder. Select Open command here or Open PowerShell command here (for other Windows version), when the adb command prompt comes up, type in the following commands below:

Code: Select all

adb devices
adb reboot bootloader
When the device boots to fastboot mode, enter the commands below:

Code: Select all

fastboot devices
fastboot oem unlock
fastboot reboot
P.S Hit the enter button after every command line.

Post results.

Use Search Button to get Instant Results | Follow Forum Rules
Avoid Spams in the forum to prevent banning the offending account. | https://romshillzz.net


Topic Author
jasmin811
Senior Member
Posts: 28
Joined: Thu Sep 12, 2019 5:02 pm
Location: Bosnia & Herzegovina
Status: Offline
Bosnia & Herzegovina

Re: LG K40 bootloader

#5

Unread post by jasmin811 » Tue Dec 03, 2019 8:49 am

Hello,

As I wrote on first post I tried already those commands but the problem is I don't have fastboot mode.The bootloader is locked.
I need to unlock bootloader first.


User avatar

RomShillzz
Administrator
Administrator
Posts: 925
Joined: Fri Jun 15, 2018 12:00 pm
Location: Nigeria
Donate: Image
Has thanked: 6 times
Been thanked: 58 times
Status: Offline
Contact:
Nigeria

Re: LG K40 bootloader

#6

Unread post by RomShillzz » Tue Dec 03, 2019 9:02 am

jasmin811 wrote:
Tue Dec 03, 2019 8:49 am
Hello,

As I wrote on first post I tried already those commands but the problem is I don't have fastboot mode.The bootloader is locked.
I need to unlock bootloader first.
There is no way the bootloader can be unlocked if the device doesn't boot to fastboot. In that case, you need to manually boot the device into fastboot mode.

Use Search Button to get Instant Results | Follow Forum Rules
Avoid Spams in the forum to prevent banning the offending account. | https://romshillzz.net


Topic Author
jasmin811
Senior Member
Posts: 28
Joined: Thu Sep 12, 2019 5:02 pm
Location: Bosnia & Herzegovina
Status: Offline
Bosnia & Herzegovina

Re: LG K40 bootloader

#7

Unread post by jasmin811 » Tue Dec 03, 2019 7:10 pm

Hello,thanks for fast reply,maybe I didn't wrote correctly.I don;t have fastboot mode even recovery mode also.
When i type the command "adb reboot bootloader" it just restart and goes to system.When i type "adb reboot recovery" it also restart and goes to system.I installed minimal adb drivers and lg bridge too and activated oem unlock and usb debug in dev. options.


User avatar

RomShillzz
Administrator
Administrator
Posts: 925
Joined: Fri Jun 15, 2018 12:00 pm
Location: Nigeria
Donate: Image
Has thanked: 6 times
Been thanked: 58 times
Status: Offline
Contact:
Nigeria

Re: LG K40 bootloader

#8

Unread post by RomShillzz » Tue Dec 03, 2019 7:51 pm

jasmin811 wrote:
Tue Dec 03, 2019 7:10 pm
Hello,thanks for fast reply,maybe I didn't wrote correctly.I don;t have fastboot mode even recovery mode also.
When i type the command "adb reboot bootloader" it just restart and goes to system.When i type "adb reboot recovery" it also restart and goes to system.I installed minimal adb drivers and lg bridge too and activated oem unlock and usb debug in dev. options.
Thank you for your feedback. I'll suggest you flash a new firmware to your device in other to fix an issue/bug, cause by default that device should boot into fastboot mode only if it is supported.

Use Search Button to get Instant Results | Follow Forum Rules
Avoid Spams in the forum to prevent banning the offending account. | https://romshillzz.net


Topic Author
jasmin811
Senior Member
Posts: 28
Joined: Thu Sep 12, 2019 5:02 pm
Location: Bosnia & Herzegovina
Status: Offline
Bosnia & Herzegovina

Re: LG K40 bootloader

#9

Unread post by jasmin811 » Mon Dec 16, 2019 8:04 pm

I asked devbootloader team from LG and they told there is no fastboot mode for this phone,which is little weird from them?!!!

LGDeveloperBootloader
Fri, 13 Dec, 09:03 (3 days ago)
to me

Hello,



Sorry K40 does not support Bootloader Unlock function, so it will not work even if Unlock code is issued.



Best Regards,
LG Developer site Team

---------- Original Message ----------


User avatar

RomShillzz
Administrator
Administrator
Posts: 925
Joined: Fri Jun 15, 2018 12:00 pm
Location: Nigeria
Donate: Image
Has thanked: 6 times
Been thanked: 58 times
Status: Offline
Contact:
Nigeria

Re: LG K40 bootloader

#10

Unread post by RomShillzz » Mon Dec 16, 2019 9:25 pm

Thank you for your feedback in letting us know that the LG K40 has no fastboot mode.

Use Search Button to get Instant Results | Follow Forum Rules
Avoid Spams in the forum to prevent banning the offending account. | https://romshillzz.net



Post Reply
  • Similar Topics
    Replies
    Views
    Last post

Return to “LG Android based phones”