[GUIDE][ROOT] How to Root your LG Optimus 4X HD (O4X P880)

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buhor

Senior Member
Jul 6, 2012
134
11
Well its rooted now ty...I have several questions from all in one tool wich recovery should we flash what options. Works for us ?thanks

Enviado desde mi LG-P880 usando XDA Premium HD app
 
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Wesley_NL

Senior Member
Nov 10, 2010
1,888
255
Rotterdam
hello guys, i did everything the discription told on 1st page but phoe stays slow after uninstall the apk what have i done wrong ?
 

66aaaa

Member
Oct 3, 2010
49
3
phone is very slow after root

My lg 4x hd is very slow after root...

I just tried to make this few steps above, but I got this message.

Any idea what to do?

Pls help me!

THX
66aaa
 

Afro

Senior Member
Nov 5, 2012
373
913
Paderborn
Seems like you have more devices connected to your PC...

Make sure the O4X is the only android device connected to your PC and you don't run any android emulator!

...sent with Tapatalk 4 beta...
 

bwin999

Senior Member
Jul 1, 2012
106
70
Anyone help

Can anyone please help me? This is what I get on command prompt.. Whats wrong with it?

Is my 4X HD required unlocked bootloader? required ADB? required Busy box? Before root?

Anyone can assist me? I wish to root and install CWM
 

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Flying_Bear

Senior Member
Jan 16, 2011
1,874
799
Can anyone please help me? This is what I get on command prompt.. Whats wrong with it?

Is my 4X HD required unlocked bootloader? required ADB? required Busy box? Before root?

Anyone can assist me? I wish to root and install CWM

to me, that message shows there is no file called "root" in that folder. check if it's really there. also, you gotta unlock your bootloader FIRST, THEN install CWM. don't mess up the order of things. rooting comes first though.

edit:
this is a way to root on ICS, not JB btw. it won't work on JB.
 

bwin999

Senior Member
Jul 1, 2012
106
70
to me, that message shows there is no file called "root" in that folder. check if it's really there. also, you gotta unlock your bootloader FIRST, THEN install CWM. don't mess up the order of things. rooting comes first though.

edit:
this is a way to root on ICS, not JB btw. it won't work on JB.

Do you know which thread to check for bootloader?

The device runs on Android 4.0.3 now. V10h.
 

riaz.ahamad

Member
Oct 13, 2007
18
6
Dhaka
Most efficien way of Roing your LG

First of all thank the machine" the front of oopsware Great God, produced below a key forum ZeRospot

1. Preferred adb tool on the computer, and have installed adb driver. Is the driver of the machine, the peas like software is installed on the line.
2.Phone off, press the "volume down" and "power" key to boot, do not release the volume down key until the screen appears with a red triangle robot.
3 Insert the USB connected to the computer, use the "volume" down select "Apply update from ADB, press the power button to determine two lines of yellow text prompts.
4 Double-click ROOT.BAT.
5.Installation is complete, the phone to return to the menu cursor restart items, press the power button to restart the phone.
6. Superuser icon appears on the phone, running "information page, click here to check for updates, connect to the network, mandatory update
 

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ZTEBlade0

Member
Sep 22, 2012
13
0
Ehm, excuse me, but the SystemBackupTest download is a ZIP FILE, and i didn't see an apk file in there, so is there something else or is something wrong with my eyesight? Obviously android apps cannot be installed with ZIP files. Why doesn't anyone mention that?


I finished the procedure, all seems to be working ok. But the device takes about 10 times more time to go from boot to lock screen than before it was rooted. Any ideas?




It takes a full 3 minutes to complete boot and get to the lock screen, after root.

5 minuts pass and then:

Scanning media files, preparing storage

and then....

Scanning media files on SD card, preparing sd card

With both taken another 5 minutes.

Is this normal??
 
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  • 155
    UPDATE: Unfortunately I no longer own this handset so am unable to test it against newer firmwares. If you find that this method does not work on firmware newer than V10D, try downgrading first.

    I would like to begin this post, by saying that I did not come up with this method, but wanted to get it written up as a proper thread as soon as possible for people to start enjoying root on their phones!

    This method was tested successfully by me on an EU phone running V10D. I am not responsible for what you do to your device after reading this guide. You undertake any actions at your own risk!

    If you want to thank someone, please thank qaz753 who posted the method for this here.


    All files needed are attached, the guide below is for Windows, but Linux and Mac scripts are included in the zip. (If certain files are not permitted to be attached, MODs please excuse and PM me, and I will look into hosting them myself)

    GUIDE

    1. Download, Unzip and Install the LG USB Driver.
    2. Download and extract the Root kit (o4xr.zip) to "C:\o4xr"
    3. Download and copy "IS11LG_SystemBackupTest.signed.apk" to your phone
    4. On your phone, go to "Settings -> Security" and make sure "Unknown Sources" is TICKED
    5. Go to "Settings -> Developer options" and make sure "USB debugging" is TICKED
    6. Install "IS11LG_SystemBackupTest.signed.apk"
    7. Open the "SystemBackupTest" app you just installed.
    8. Hold the power button and choose "Power off and restart".
    9. When you can see the lock screen, you may notice that the phone is running very slowly, this is normal.
    10. Connect your phone via USB to your computer.
    11. Make sure the phone is in "Charging Only" mode.
    12. Open a command prompt (may need admin privelages, right click, run as administrator)
    13. Type without quotes "cd C:\o4xr" and press enter.
    14. Type without quotes "root" and press enter.
    15. Wait while the script runs, and the phone will reboot automatically.
    16. You should then see the command prompt "C:\o4xr>".
    17. Uninstall the "SystemBackupTest" app on your phone. (Do NOT re-open it, or you will need to run the script again).
    18. On your phone, open up Google Play Store and search for "SuperSU".
    19. Update SuperSU then open it.
    20. Press OK to update the SU binary.
    21. You now have root and can safely restore the "Unknown Sources" and "USB debugging" settings back to how you had them!

    The root kit and apk may contain other peoples work, I did a quick search to try and find the original sources but to no avail. If this is your work, please PM me and I will be more than happy to add your name to this post and give credit where its due. :)


    HAVING ISSUES?

    • Try disabling any Anti-Virus you have running
    • Uninstall or disable any screen filters/adjusters
    • You can safely re-enable and re-install the above once you have completed root
    • If your device is really slow, make sure "USB Debugging" is ticked, then run in a command prompt:


    REALLY SLOW AFTER ROOT?

    • Remove the "SystemBackupTest" app, if you haven't already.
    • On your phone, go to "Settings -> Developer options" and make sure "USB debugging" is TICKED
    • Connect your phone via USB to your computer.
    • Make sure the phone is in "Charging Only" mode.
    • Open a command prompt (may need admin privelages, right click, run as administrator)
    • Type without quotes "cd C:\o4xr" and press enter.
    • Type without quotes "adb shell rm /data/local.prop" and press enter.
    • Type without quotes "adb reboot" and press enter.


    THANKS

    • qaz753, for posting this method!
    • atipon, for reducing the reboots to 1.

    Original post:
    I got a root!

    This is a process.

    1. Install to USB Driver
    2. download HTC One X root-kit.,unzip to C:\onxr
    3. you choose USB debugging on your 4X (Setting>Developer options>USB debugging)
    4. Install and run the IS11LG_SystemBackupTest.signed.apk

    5. reboot manually(after reboot, 4x becomes very slow!)
    6.connect 4x to PC and run the command prompt

    cd c:\onxr -> root

    9. A reboot starts automatically. (2times~3times)

    end


    sorry my bad engilish....
    my 4x software version is LG-P880-V10d-JUL-16-2012
    securedownload.jpg
    3
    root with kingo android root. it will not crash.
    3
    Big Up for all who contributed towards finding the way to root our 4X HD :good: :D

    Especially for qaz753, of course :p

    Edit : It works perfectly !

    3
    Sorry but Can I get the V10F version if I have already the root?

    Have I do anything before update? I have only the root, not the recovery.

    Thanks in advance

    I used the LG Mobile support tool to update my rooted phone. Even though it said it would wipe everything it didn't. I would recommend backing up just in case though.

    It will unroot the phone, so you will need to follow the root guide again from scratch to regain root.