How to fix LG G3 download mode not opening. Stuck at fastboot. (All Variants).

Previously:
In previous post we told about some good roms available for LG G3 (All Variants) and also how to root and install TWRP recovery on any LG G3 variant. If you missed these post you can check them here
How to root & install Custom recovery on LG G3
Best Android roms for LG G3.

In this post  i am going to give a guide that "How to fix fastboot mode opening in your LG G3". This usually occurs when you do some wrong adb commands to your device and delete the download mode. Download mode is a recovery thing when you want to "Unroot and un-brick" your LG G3 device. But if you have deleted your LG G3 download mode you must in a great stress and looking for a guide to fix this. If you have done this thing to your device then your download mode might open as like this shown below ( Connect powered off device to computer pressing volume up button at the same time).

instead of this

Now you are confirmed about this "That you have soft-bricked you device". So let's get to steps to fix this thing. First


First Disclaimer:
Your warranty is void now. I am not responsible for any mistake and wrong thing happens to your device. Always try if you have a good knowledge of that.
These steps are not an official LG  and therefore not endorsed by LG Electronics in any way. As such, this is a 'try-at-your-own-risk' approach. Please make sure to back up your important files when trying this for the first time. I take no responsibility for any undue outcomes resulting from the use of these steps. 

Things you Need:
1: LG united mobile drivers here. (Skip you have already)
2: adb & Fastboot drivers from here. (To do flashing commands). Minimal Edition.
3: Make sure "USB debugging" is on for you LG G3 device. If not sure check here.
4: laf.img for your device. (Download mode image). Most important thing
Download it from here according to your device variant like as d850, d855 or etc.
Select your variant > Stock partitions > 10D > laf.img ( I prefer 10d laf.img you are welcome to try other ).
5: LG G3 device in fastboot mode by connecting powered off phone to computer while pressing volume up button.
6: And the most important thing a computer. (I tried it on Windows 10 but will work on 7,8 and others too.
Steps:
1: Install LG united mobile drivers.
2: Extract fastboot mode "mfastboot-v2.zip". Copy "laf.img" here. Open CMD here by pressing
"Shift+Right click > Open Command windows here". Might as below.

3: Connect your LG G3 device while in fastboot mode.(Make sure drivers are installed).
4: Check if connection is right by doing this command
mfastboot devices
5: If you done right your device might appear. (Sometimes as a question mark too)
6: To flash download mode. Process with these commands in sequence.(Make sure "laf.img" is copied to that folder where you extracted "mfastboot-v2.zip" and is named as "laf.img").

fastboot erase laf
fastboot flash laf laf.img
fastboot reboot

7: Pull battery of your device and reboot into download mode again if flashing is successful. Download mode might appear as original. If not then you might have not listened to instructions. (If still stuck as in comments).