bootloaders are like a phones bios, it is what tells the phone to load the kernel and recovery and rom, a locked bootloader means it signature checks the kernel and recovery so you cant replace them with custom ones.
This came to me from Shabbypenguin.

 

he folks i'm sorry for my bad english but i am from cuba and i crazy to root my lg l70 ms323 and this part not understand "and you still don't have a backup of the laf partition, hastebin the output of terminal or command prompt and link me to it."

please explain for my better understanding thk a lot for you great work

 

So ummm..... what exactly should the screen look like?

I followed all the steps but something just does not seem right

 

Any chance someone could make a guide for Mac users?

 

hi! i was trying to restore the download mode as it is posted here, but when i choose to restore the backup .img the phone reboot and now it stays in:
[660] fastboot_init()
[660] Error: allocating memory for ssd buffer
[690] USB init ept @0x7ab1000
[710] udc_start()
[810] -- reset --
[810] -- portchange --
[1070] fastboot: processing commands
the phone does not boot, just stay there D: what can i do? is there any way to fix it? Thank you all

 

Hey guys, thanks for the instructions.

I'm having "device offline" issue when I start adb. Anyone can help?

 

having the same issue as the previous poster with the device offline error. did you figure out what was wrong?

 

When I plug my phone in and go into fastboot I cannot find it on my PC. I have updated the drivers and I still get nothing when I run fastboot devices. Any idea what I can do?

 

I thought I had it installed. I will check again in the morning.

 

Hi Mike.

First let me say thank you for a nice job, but after reading this post, it's look like i'm not the only one having problem unlocking the bootloader and many users have many problem getting it to work.

I try to find a video on youtube, but without success
can you make a small step by step video ?
believe me... it will solve 90% of the problems.

 

I don't mind install linux on one of my 6 computers
i'm just wanna pass this with 100% success.

any suggestion on fast & easy Linux version ?

 

I tried this on my cricket lg l70 D321 it doesn't take me to fastboot when I power on and press the volume up at the same time it just restarts, is it probably because my phone doesn't support this.

 

It has to be plugged in to a charger while you hold vol+

 

I did that but it vibrates and restarts it with LG than the cricket boot animation even when I still hold the buttons does the same thing again.

 

The D321 supports this, you're just not doing the sequence right. From power off: Plug in your USB cable. Wait til it reads a charge. Then press and hold Power til the phone vibrates. Immediately release Power and press Volume Up until it loads fastboot.

Mike, you may want to update the OP with this method, as it seems different models (D320, D321, MS323) have slightly different ways of entering laf.

 

Step 1 completed just fine.

Volume Key+Power Button combo isn't working.
Partition Zero didn't help... still won't boot into fastboot mode.

 

When i put in the command "laf_script.bat" it says
======================================================================
Bootloader Unlock For The LG L70 Part 1
====================By: Android Addict and junkie2100 ==================

Make sure that USB Debugging is enabled,
and
all drivers are installed
ECHO is off.
==============================Disclaimer==============================
I am not responsible for anything that may or may not happen to your
phone. By using this script, you are taking full responsibility of your device.

======================================================================
=============================Other credits============================
Android Addict, junkie2100, Cheetopocalypse, biggiephil, bobdamnit, LoneStar,
and PlayfulGod.
======================================================================
[*] Moving laf.img to sdcard/Download folder

1024+0 records in
1024+0 records out
23068672 bytes transferred in 1.315 secs (17542716 bytes/sec)

[*] Moving laf.img to computer just in case

3540 KB/s (23068672 bytes in 6.363s)

[*] Now going to zero out the laf partition

/dev/block/platform/msm_sdcc.1/by-name/laf: write error: No space left on device

45057+0 records in
45056+0 records out
23068672 bytes transferred in 4.533 secs (5089051 bytes/sec)
[*] laf partition complete!!!

[*] Proceed to part 2 of my guide now!!!

laf partition script
========By: Android Addict, junkie2100, Cheetopocalypse, biggiephil,
bobdamnit, LoneStar, and PlayfulGod========
ECHO is off.
ECHO is off.


Hope you enjoyed this! If you would like to
donate, follow the link in my signature!

Why does it say this , i have a 32 gb and a partition 20/12 gb so i have enough space, please help

 

what this mean:
zero out the partition