Lg Optimus L9

Bootloader is very useful thing for android users, basically it is a kind of UI which runs on start-up of device. It is very useful for developing purposes, you can update various unsupported apps with this.

You can make backup your device and restore it again (one of the best thing). You can do clear cache,
dalvik cache in just one second. Moreover you can delete your current rom and can replace with any other custom rom like cynogenmod.

1. Device

2. Data cable 

3. Drivers

4 windows xp, 7 or 8

1. unlockl9 - here

1. First install drivers

2. connect your phone in debuuging mode

3. then extract the download content and put it in c drive

4. open Flash_Bootloader.bat

5. your device will boot into installation mode

6.  open Flash_Recovery.bat

7. after few seconds your recovery will be copied to your device and your device will automatically reboot

8. open Reboot2Recovery.bat, now you are on cwm bootloader

9. done..:)

DO AT YOUR OWN RISK

Rooting enables you to customize your device, you will able to access more imformation about your device. You can do changes in system directory for different purposed. Rooting mode is only for developer, if you are new at this it is recommended not to root your device because sometime people brick their devices. Rooting makes warranty void, so if you want your device for developing purpose

Then go for it

Things needed :-

1. Device

2. Unlocked bootloader ( unlock bootloader first) :- here

Things to download :-

1. Su :- here

1. just turn off your device

2. hold three button volume down + home + power button when lg logo appears keep pressing volume    down button and home and release power button

3. Then your bootloader wiil appear

4. Goto select zip from internal or external ( it depends on your zip location)

5. select zip and restart your device and you are done

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