[Optimus L3, L5, L7 Q&A, Help & Troubleshooting] ghatothkach:
hacking notes

[RESERVED]

$ ./adb shell /system/xbin/busybox | head -5
BusyBox v1.21.1 (2013-12-29 07:49:16 EST) multi-call binary.
BusyBox is copyrighted by many authors between 1998-2012.
Licensed under GPLv2. See source distribution for detailed
copyright notices.

$ ./adb shell /system/xbin/busybox mount -v
rootfs on / type rootfs (ro,relatime)
tmpfs on /dev type tmpfs (rw,nosuid,relatime,mode=755)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
none on /acct type cgroup (rw,relatime,cpuacct)
tmpfs on /mnt/asec type tmpfs (rw,relatime,mode=755,gid=1000)
tmpfs on /mnt/obb type tmpfs (rw,relatime,mode=755,gid=1000)
none on /dev/cpuctl type cgroup (rw,relatime,cpu)
emmc@android on /system type ext4 (rw,relatime,noauto_da_alloc,commit=1,data=ordered)
emmc@usrdata on /data type ext4 (rw,nosuid,nodev,noatime,discard,noauto_da_alloc,resuid=1000,errors=continue,data=ordered)
emmc@cache on /cache type ext4 (rw,nosuid,nodev,noatime,discard,noauto_da_alloc,data=ordered)
emmc@persist_lg on /persist-lg type ext4 (rw,nosuid,nodev,relatime,data=ordered)
emmc@persist on /persist type ext4 (rw,nosuid,nodev,relatime,data=ordered)
emmc@mpt on /mpt type ext4 (rw,nosuid,nodev,relatime,data=ordered)
/emmc@sec_ro on /system/secro type ext4 (ro,relatime,data=ordered)
/dev/fuse on /storage/sdcard0 type fuse (rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other)

$ ./adb shell /system/xbin/busybox cat /proc/emmc
partno: start_sect nr_sects partition_name
emmc_p1: 00000400 00000002 "ebr1"
emmc_p2: 0000f400 00002800 "sec_ro"
emmc_p3: 00014800 00004000 "persist_lg"
emmc_p4: 00018800 00003000 "persist"
emmc_p5: 0001b800 0000b000 "mpt"
emmc_p6: 0002b800 00005000 "swap"
emmc_p7: 00031000 0021d800 "android"
emmc_p8: 0024f000 0009a800 "cache"
emmc_p9: 002ea000 00443000 "usrdata"
emmc_p10: 0072d800 00005800 "fat"

lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0boot0 -> /dev/block/mmcblk0boot0
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0boot1 -> /dev/block/mmcblk0boot1
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0p1 -> /dev/block/mmcblk0p1
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0p2 -> /dev/block/mmcblk0p2
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0p3 -> /dev/block/mmcblk0p3
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0p4 -> /dev/block/mmcblk0p4
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0p5 -> /dev/block/mmcblk0p5
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0p6 -> /dev/block/mmcblk0p6
lrwxrwxrwx root root 2013-12-23 21:47 mmcblk0p10 -> /dev/block/mmcblk0p10

PARTITION BACKUP

dd if=/dev/block/mmcblk0boot0 of=/sdcard/Download/mmcblk0boot0.img
dd if=/dev/block/mmcblk0boot1 of=/sdcard/Download/mmcblk0boot1.img
dd if=/dev/block/mmcblk0p1 of=/sdcard/Download/mmcblk0p1-ebr1.img
dd if=/dev/block/mmcblk0p2 of=/sdcard/Download/mmcblk0p2-secro.img
dd if=/dev/block/mmcblk0p3 of=/sdcard/Download/mmcblk0p3-persist_lg.img
dd if=/dev/block/mmcblk0p4 of=/sdcard/Download/mmcblk0p4-persist.img
dd if=/dev/block/mmcblk0p5 of=/sdcard/Download/mmcblk0p5-mpt.img
dd if=/dev/block/mmcblk0p6 of=/sdcard/Download/mmcblk0p6-swap.img
dd if=/dev/block/mmcblk0p10 of=/sdcard/Download/mmcblk0p10-fat.img

Tried

adb reboot oem-unlock

The phone booted back up, but I have no clue if it did unlock or not.

It did not prompt for anything on reboot. I guess its safe to assume

it is still locked...

Well I dont know any unbrick procedure for this devices, so I will

tread cautiously.