Thats affirmative...O4X does not intergrated with any notification LED...

however there are some app that u can use with. but not all notification is supported. Miss call, sms yeah.

Mind to share what app?

i'm using ButtonLED

Ok, will try this app later.
To me, the notification it's good to have during charging, miss call and message (sms or whatsapp).

I've used LG backup app just now, but I guess the backup is only meant on general apps and data only, right?
Is he backup inclusive the whole system? My expectation of full system backup is now my phone still in stock JB with rooting done only, let say I do custom kernel or rom later and encounter problem, can I restore the previous back so that the phone still back to the date where my phone still in stock rom and rooting only?

for that, u need a nandroid backup.

No its not...The LG stock backup app just do a backup on your apps/message/contacts/settings only...
If you want a full backup of whole system, you need CWM...Thats why i recommend you to unlock BL and directly
push in Cwm recovery

Ok, so sounds like there's no way to backup the existing stock system without proceeding the unloack BL first, right?
You mentioned earlier that you use the one click tool for your unlocking BL and etc, right? I'm opening the v1.0.1 now, seeing that there's lot of selection inside of it, any sequence of which to install first (sure rooting is always first thing need to do) ? I believe some are similar function and should only choose one, so can recommend which is must and which is option ?

You already install the ADB driver? Once done, can proceed Unlock Bootloader as you already rooted

Yup, ADB installed.
No want to know which should I follow sequence of the tool from unlook BL till flashing at line n.9? Or should just pick some critical one to flash instead of flashing all?

Then you can choose Option.2...Make sure your phone is connected in with USB Debugging Mode...

Some version reported cant be unlocked using this tool...But i found malaysian user in XDA that managed to get unlocked using this tool...Backup all your contacts/apps/msg, as unlocking will clear your data

Inform me if you cant managed to get unlocked...

Too bad, unlocked denied.
Try using both one click version of v1.0.1 and v1.2 also failed

Then yours too same like mine Need a manual unlocking procedure through fastboot...

Do you know how to use fastboot by command promt in your pc? If not, i am sure that you have and know the location of your ADB drivers right? If yes, connect your phone in Debugging Mode, go to your ADB driver folder in your pc, from the folder simply just hold and press shift key in the folder and right click, choose " Open Command Window Here " and you are in ADB mode...

Once you go through this, tell me and i will proceed...Do you have FB ?? pm me

Wait up, you can use this tool...Im uploading it...

I use the other manual method, I think I've unlocked it

So you get the " Unlocked " replies already?

Oh..sorry ah, looks like need to touch the unlock checking selection to see the status.
Anyway, confirmed unlocked

BTW bro, my company not allow to use FB. So, maybe we can chat through whatsapp if you want. My contact is 0135181833, Chan.