- Root the device using the guide in this thread.
- Verify that you have a SuperUser app installed, and you're able to achieve root status. The best way to check is by downloading SuperSU, and updating the binaries.
- Unlock the bootloader by downloading emmc_appsboot_617_truncated.zip in this thread. (Thanks Skellums!)
- Turn on USB Debugging in Developer Options, (if you can't see Developer Options in the settings menu, continuously tap on Build Number in About in Settings).
- When you plug in your device, if you have an SDCard, you should see two storage spaces within the LG L5 MTP. Place the bootloader file in root of the phone storage (which the devices sees as the SDCard). The actual SDCard is the external SDCard which ADB has trouble seeing on occasion.
- Plug in your device to the PC, and make sure its loaded into Android.
- Download the fastboot/adb files here, and extract them to C:/fastboot/. Open the command prompt in windows, and type:
adb shell su dd if=/dev/block/mmcblk0p5 of=/sdcard/emmc_appsboot-backup.bin dd if=/sdcard/emmc_appsboot_617_truncated.bin of=/dev/block/mmcblk0p5 reboot
- You now need a recovery, so let your phone reboot, and when its back to the main screen, make sure the device is plugged in, open the command prompt, and follow the instructions here.
- Any CyanogenMod works very nicely on the L5 E617G. You can get CM10.1 along with gapps here or CM10.2 here or the amazing CM11 here. Before heading back to recovery, you will need the CM10.1 ROM, GAPPS, v20 BaseBand, and WakeWithHomeAndPower_signed.zip (Optional) and v10 Baseband (For restore purposes if something goes wrong).
- Copy all those zips to the root of your external SD, and then run the command:
adb reboot recovery
- Then, factory reset your device in recovery. You can now flash CM10.1, by choosing "install zip from external sd card". Flash the v20 baseband, then the ROM, then gapps, then the wake with home fix.
- Upon reboot, you should have CM working very well on your LG L5 E617G!
Note: You can also get to recovery with the L5 but holding down Vol Down and Home, while pressing the power button for 2 seconds.
Disclaimer: I wrote this article because I, myself, had quite the experience in getting CM10.1 running on this L5 variant, and I wanted to show that it's certainly possible, thanks to the hard work by all the devs here! Good luck!