In this guide I'm going to assume you know how to get SDK working. Here's the video if you don't: http://www.youtube.com/watch?v=oaNM-lt_aHw
This is in reference to Hascode's guide http://forum.xda-developers.com/showthread.php?t=2128175]
for steps 4.5 AND BEYOND or if you just want to enter Fastboot for yourself.
1. Download this: https://dl.dropbox.com/u/54456659/KFFirstAide64.zip (64 bit) OR https://dl.dropbox.com/u/54456659/KFFirstAide32.zip (32 bit)
Latest version of Java: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
Source: prokennexusa
2. Extract it to your C Drive (or primary), keep the folder name the same KFFirst AIDE (Do not change it)
3. Make a Path to that folder, as shown in the video. Instead you will put ;C:\KFFirstAide
4. Download Hashcode's files and place them in that FirstAide Folder.
5. Before going further, uninstall any previous drivers for the Kindle in Control Panel and Device Manager.
6. Install ADB Drivers found within KFFirstAide -> KindleADB
7. Open up RunMe.bat and run option 11 to verify ADB is working.
8. Now run option 15 to boot into Fastboot, it may take a min.
9. Once in Fastboot, open Device Manager and update the driver, browse to C: -> Program Files -> Amazon -> Drivers -> WinUSB
10. Open CMD and type in cd C:\KFFirstAide
11. Now type in Hashcode's Fastboot lines and it should run (you can verify this because the files pushed will also show up on your Kindle)
NOTE: It's important that you do not have any ADB or Kindle drivers installed prior to installing the one in the FirstAide folder (Check Device Manager)
If you have questions, post a comment down below and I will try to answer them.
Fixed Links. Working Now.
I need some help! I was using KFFristaide64 with my 8.9 KFHD. I was trying to flash to the 8.1.2, option 5, and it flashed the boot, recovery and system, them hung at deleting user data for about 2 hours. When it finally rebooted the kindle screen never comes on, and windows emits the beeps it uses to notify a usb device attachment and removal back to back to back, and the kindle never shows up in windows or ADB. I have tried to get into fastboot with option 15 and 16 using a standard and factory USB cable, but no combination will bring up fast boot, just get the cycling connection/disconnect sounds from windows. Does anyone know if there is a way to recover from this? I have a full back up (all 11 partitions) that I created just before starting. My device was rooted before I began, but I have no clue where in the process it would be now. Can anyone help, or should I just start looking for a new 8.9 KFHD?
Whenever I try to run step 6 of this, the installer tells me that it's failed and that I need to install the drivers manually. Doing that doesn't change anything, I still get the Kindle in the device manager with the exclamation point telling me that drivers have not been installed. I've removed everything from device manager/control panel before I run it.
Related
Hello XDA Community.
I'm attempting to install the new RC of CyanogenMod-6 for the Hero CDMA. I'm currently running the stock 2.1 version of Android. I've been following the guides that were referred to in the thread (I tried posting the urls but new users can't do so to prevent spam).
I've successfully rooted my phone and now I'm trying to do a Nandroid backup. I'm running Windows 7 32-bit and have hit a road block with ADB not recognizing my device. I followed the guide put together by Nephron to install the Android SDK. I've spent several hours going through threads and doing google searches looking for the solution. I have debugging turned on and I don't mount my SD drive when I plug the USB cord in. I've used USBDeview as some have suggested to delete current HTC drivers and then reinstall - no luck.
Here is a screen shot of what happens when I plug in my Hero:
See attached - "failedinstall.jpg"
Then I'll go to device manager to manually install the driver (it never allows me to manually select upon connection for some reason):
See attached "devicemgr.png"
And then this is the message I get when I point it to the "right" folder with the drivers:
See attached - "unabletoinstall.png"
So, on the Android SDK site I noticed this message:
"The USB driver for Windows provides support for the following Android-powered devices:
T-Mobile G1* / ADP1
T-Mobile myTouch 3G* / Google Ion
Verizon Droid*
Nexus One
* Or similar hardware on other carriers
Any additional devices will require Windows drivers provided by the hardware manufacturer.
^So is all of this HTC's fault? I've downloaded a couple of different .zip folders from different threads claiming that these drivers would work. But none of them have yet to do the trick for me.
I'm new at this so I have a few other questions as well:
Most guides I've read about how to do a Nandroid backup always recommend flashing a ROM b/f doing a backup. But I want to backup my current stock rom and settings before I flash. Wouldn't I want to create a recovery image before installing any other ROMs? Perhaps I'm misunderstanding some requirements?
Referring again to the thread on the CyanogenMod RC, can someone help me understand step #3? How do I know if it is necessary to update my radio? What implications does this have? I tried looking for info about this on the wiki and I couldn't find anything comprehensive enough to answer my question.
I'd appreciate any guidance!
Before you modify anything you will want to boot into recovery, assuming you flashed one, by holding down Home and turning the phone phone back on(power button). But since you don't have adb working then you probably haven't. You can still do this using terminal on your phone.
Download terminal emulator from market and then download a revoery image (AmonRa 1.6.2 or Darch's 1.7xx) and then mount your sdcard to the computer and transfer the recovery to the root of the sdcard. Open up terminal emulator and type in
Code:
su
cd /sdcard
flash_image recovery recovery-RA-heroc-v1.6.2.img(type the exact file name of the recovery you are using)
reboot recovery
If you had factory 2.1 on your phone then you have the latest radio. The radio can be flashed just like any ROM, but make sure that the radio is not for GSM phones as this will destroy your phone.
Instructions from Android Developers and ADB, Fastboot, and Nandroid for Noob
Download the latest Android SDK.
Unzip to C:\AndroidSDK
Right-click on (My) Computer, and select Properties
Go to Advanced settings
XP: Click the Advanced tab
Vista/7: Click Advanced system settings on the left
Click the Environment Variables button
double-click on Path (under System Variables)
Add the full path to the tools/ directory:
C:\AndroidSDK\tools\
(make sure a semicolon ( separates this new path from all the others)
Latest windows sdk version appears to need: "C:\AndroidSDK\android-sdk-windows\tools", install location may change with further updates..
Run C:\AndroidSDK\SDK Setup.exe
If you get an error about not having Java SDK installed but you do, add the path to 'bin' within your Java installation location to the Path environmental variable as described above before the sdk entry you just made. (eg add "C:\Program Files\Java\jdk1.6.0_20\bin;") This is likely to only be necessary where the 64 bit Java SDK is installed (obviously) on a 64 bit machine.
If it gives you an error about http go to settings and click on "Force http//....."
Unselect all options except for the USB driver
If you can't get the setup to work, download the USB-DRIVERS folder - HERE (Windows XP/Vista/Windows 7)
On your phone, click Settings > Applications > Development and make sure USB Debugging is on.
Plug your phone into your computer via USB cable (it needs to be on). It should say installing drivers if using Windows.
After it installs the drivers, goto the Start menu and type cmd into the search bar (Vista or higher) or click Run then type in cmd (XP) to open the command prompt.
Type the following into the command prompt window:
adb devices
You should see a serial number pop up, it’s the serial number of your phone. This means you are all set. If you do NOT see a serial number, then we need to reinstall the drivers.
Download USBDeview
While the phone is still plugged in, open USBDeview and sort by manufacturer. Find all the HTC/Android drivers and uninstall them all. (Windows Vista requires program to be run as an administrator, otherwise files won't uninstall.)
Once all have been uninstalled, unplug the phone from the USB cable and plug it back in.
The correct drivers should reinstall automatically (check the drivers as they are installing, one should say ADB Device driver).
To check, go to Devices in your Start menu then click on the “Android Phone”. Click on the Hardware tab, and check the list of drivers for ADB Interface under Type.
Done! Now you can use ADB to alter your phone from your computer.
If all else fails try installing HTC Sync software-- http://member.america.htc.com/download/Driver/HTC Hero (Sprint)/HTC_Sync_2.0.40.exe and then removing the drivers for it and then trying to install the android sdk drivers
Or you can dual boot with Linux and all you will need to do is download and unzip android sdk and edit 2 files and everything will work.
WOW>>>>>no that is way to confusing. the best thing to do is install vmware workstation. Then do a virtual WINDOWS XP MODE. from there you will be able to install the drivers and such in order to get the phone to be seen.
the version of htc sync i used for all my computers including win 7 was 2.0.33
if you want it then just pm me and I will get it to you
they don't offer it for a download anymore
this version corrected all my driver issues
Hi everybody. I have a problem with rooting my kindle fire hd. I used this method Method1, Method2, Method3.
In first method all proces has been end sucesfull but my kindle nothing rooted (in superuser i don't see anything aplication.
In second method it's this same.
In third method I can't get permision to create data/local.prop
adb shell
[email protected]:/ $ echo 'ro.kernel.qemu=1' > /data/local.prop
echo 'ro.kernel.qemu=1' > /data/local.prop
/system/bin/sh: cannot create /data/local.prop: Permission denied
Click to expand...
Click to collapse
What I do wrong? I have two superuser apps on my kindle but anything don't get root permision to my es file explorer. I buy this few days ago and I never install before root to my kindle.Please help me.
I restore to factory settings, install root from method1 and now device has been rooter. I don't know why in first time i can't set root to aplication. Now all is ok. You can close this topic
Rooting KindlefireHD 7.2.3
hi,
after i have typed echo 'ro.kernel.qemu=1' > /data/local.prop
kindle told me i have no persmission to do it. But remove hide tmp folder i can be able
anybody can help how to continue?
thanks
Rooting KindlefireHD 7.2.3 - success
dagelo said:
hi,
after i have typed echo 'ro.kernel.qemu=1' > /data/local.prop
kindle told me i have no persmission to do it. But remove hide tmp folder i can be able
anybody can help how to continue?
thanks
Click to expand...
Click to collapse
okey. So, after dancing with ... :cyclops: i was able to get root in my kindlefirehd. Unconfortable was that all this magic i did from my Windows 7 I wasnt able to do it from my gentoo. Dunno still why.
So, about rooting process in windows -> First problem was that adb.exe from both methods (in archve archive) didnt see my Kindle device, despite of fact that kindle storage presented in My computer. Every time i run adb.exe its told me that please insert device or device not visible for ADB.
Then, adb.exe devices returned me only empty output lines.
This problem was fixed by download Andloir SDK tools and copy ADB.EXE from platform-tools to the both unzipped directories from these rooting methods.
After completed first method my kindle was very slow. Second methond with Qemu solved it somehow
So, now i can edit some files via simple built-in texteditor. Also, TitanimBackup now installed on my device.
Also, there is a one note about linux. Especial for gentoo distribution with hardened kernel. Something (dont know still what exactly, maybe PaX configuration) causing that adb returns error :
PHP:
ADB server didn't ACK
* failed to start daemon *
error: cannot connect to daemon
If you run
PHP:
adb nodaemon server
it will show you exactly the reson what is wrong. In my case it was:
PHP:
error: Operation not permitted: cannot create input thread
.
Solving with command paxctl -m /path/to/file/adb
Hope somebody will found my note useful.
rooting kindle fire hd 8.9
I have tried all methods. Just factory reset and tried method 1,2 and 3 again. Method 2 give this message Failure [INSTALL_FAILED_INSUFFICIENT_STORAGE] after the daemon loads. I am downloading the Android SDk to try and get the latest adb program. Maybe that will work. Any HELP!!:fingers-crossed:
First things first lets get your sdk and drivers setup correctly.
1. Download the sdk package from here http://developer.android.com/sdk/index.html#download
2. Open the file you downloaded and take the sdk folder and the sdk manager file and copy it to you hard drive. C:/sdk** C Being the hard drive letter.
3. Now you need to open up sdk manager and go to tools menu and select manager addon sites. Now select user defined sites tab and select new and enter this site. http://kindle-sdk.s3.amazonaws.com/addon.xml and click ok.
4. You need to click the following boxes to install the packages you need. TOOLS, ANDROID 4.0.3 (api 15), and EXTRAS. Then click install packages to install them.
5. Now you need to install JDK from here http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
6. Now you need to install your basic java from here http://www.java.com/en/download/index.jsp
7. Now you need to install kindle fire hd adb drivers from here http://forum.xda-developers.com/showthread.php?t=1890413
8. Now shut down your kindle and connect your kindle to your pc and let it boot all the way and unlock the lock screen.
9. Now you need to run this tool https://dl.dropbox.com/u/54456659/Root_with_Restore_by_Bin4ry_v18.5.1.zip
And select option 1 and on your kindle when tbe screen pops up asking to restore go ahead and tap on restore.
10. When your kindle restarts the lock screen should turn black and look funny ( if this does not happen then run the tool again untill it does) Now unlock the lock screen.
11. Now you need to run this tool https://dl.dropbox.com/u/54456659/Qmenu-v2.5.zip and select option 1
When it says press enter to proceed make sure you wsit till it fully boots and you unlock the lock screen before continuing to next step. Once all steps are completed you should have root.
Open superuser to activate itand enjoy.
Pm me if you have any questions or just reply here.
Sent from my KFTT using XDA Premium HD app
Thanks!
Hinzman420 said:
First things first lets get your sdk and drivers setup correctly.
1. Download the sdk package from here http://developer.android.com/sdk/index.html#download
2. Open the file you downloaded and take the sdk folder and the sdk manager file and copy it to you hard drive. C:/sdk** C Being the hard drive letter.
3. Now you need to open up sdk manager and go to tools menu and select manager addon sites. Now select user defined sites tab and select new and enter this site. http://kindle-sdk.s3.amazonaws.com/addon.xml and click ok.
4. You need to click the following boxes to install the packages you need. TOOLS, ANDROID 4.0.3 (api 15), and EXTRAS. Then click install packages to install them.
5. Now you need to install JDK from here http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
6. Now you need to install your basic java from here http://www.java.com/en/download/index.jsp
7. Now you need to install kindle fire hd adb drivers from here http://forum.xda-developers.com/showthread.php?t=1890413
8. Now shut down your kindle and connect your kindle to your pc and let it boot all the way and unlock the lock screen.
9. Now you need to run this tool https://dl.dropbox.com/u/54456659/Root_with_Restore_by_Bin4ry_v18.5.1.zip
And select option 1 and on your kindle when tbe screen pops up asking to restore go ahead and tap on restore.
10. When your kindle restarts the lock screen should turn black and look funny ( if this does not happen then run the tool again untill it does) Now unlock the lock screen.
11. Now you need to run this tool https://dl.dropbox.com/u/54456659/Qmenu-v2.5.zip and select option 1
When it says press enter to proceed make sure you wsit till it fully boots and you unlock the lock screen before continuing to next step. Once all steps are completed you should have root.
Open superuser to activate itand enjoy.
Pm me if you have any questions or just reply here.
Sent from my KFTT using XDA Premium HD app
Click to expand...
Click to collapse
It worked for me! Thank you!
Try this man
http://www.oneclickroot.com/tablet/kindle-fire-hd/
Sent from my SGH-T989 using Tapatalk 2
Your welcome I too had a horable time rooting until I pieced this together. Glad it helped
Sent from my KFTT using XDA Premium HD app
Hinzman420 said:
First things first lets get your sdk and drivers setup correctly.
1. Download the sdk package from here http://developer.android.com/sdk/index.html#download
2. Open the file you downloaded and take the sdk folder and the sdk manager file and copy it to you hard drive. C:/sdk** C Being the hard drive letter.
3. Now you need to open up sdk manager and go to tools menu and select manager addon sites. Now select user defined sites tab and select new and enter this site. http://kindle-sdk.s3.amazonaws.com/addon.xml and click ok.
4. You need to click the following boxes to install the packages you need. TOOLS, ANDROID 4.0.3 (api 15), and EXTRAS. Then click install packages to install them.
5. Now you need to install JDK from here http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
6. Now you need to install your basic java from here http://www.java.com/en/download/index.jsp
7. Now you need to install kindle fire hd adb drivers from here http://forum.xda-developers.com/showthread.php?t=1890413
8. Now shut down your kindle and connect your kindle to your pc and let it boot all the way and unlock the lock screen.
9. Now you need to run this tool https://dl.dropbox.com/u/54456659/Root_with_Restore_by_Bin4ry_v18.5.1.zip
And select option 1 and on your kindle when tbe screen pops up asking to restore go ahead and tap on restore.
10. When your kindle restarts the lock screen should turn black and look funny ( if this does not happen then run the tool again untill it does) Now unlock the lock screen.
11. Now you need to run this tool https://dl.dropbox.com/u/54456659/Qmenu-v2.5.zip and select option 1
When it says press enter to proceed make sure you wsit till it fully boots and you unlock the lock screen before continuing to next step. Once all steps are completed you should have root.
Open superuser to activate itand enjoy.
Pm me if you have any questions or just reply here.
Sent from my KFTT using XDA Premium HD app
Click to expand...
Click to collapse
I hear you about this being a nightmare. I'm pretty sure got all pre-req, adb drivers and i've checked adb devices and the device appears but i keep getting system/bin/sh permission denied message.
what do i need to fix?
Widodude said:
I hear you about this being a nightmare. I'm pretty sure got all pre-req, adb drivers and i've checked adb devices and the device appears but i keep getting system/bin/sh permission denied message.
what do i need to fix?
Click to expand...
Click to collapse
Try deregistering your kindle and reinstall java then try rooting again. Dont ask why but this worked for me.
Sent From My Kindle HD Running Kinology Rom
Having just spent the last few days reading, downloading, returning and cursing, and finally getting CM10.1 running on my NOOK HD from sdcard...working on a Windows 7 laptop...I thought I'd write up a few quick tips from my (limited) experience. Hopefully someone will find these helpful.
One
To get ADB working correctly...which you'll want to do...get the usb_driver_r04-windows.zip from the NOOK developer's site by following the instructions here. Connect the NOOK to your workstation first and let the OS try to detect and install the drivers. When it fails, open Device Manager, and look for the MTP device, which will have a warning icon next to it. Right-click it, click 'Update driver...' and use the "browse my computer" option for driver software, and use the location where you unzipped the drivers that you downloaded.
Install Java and the Android SDK. Instructions for what to download and how to install are here for Java, and here for the Android SDK. You can ignore the steps for configuring the PATH variable for Java, however you'll want to configure your PATH for the /tools and /platform-tools directories in the Android SDK. You can do this via the GUI but using cmd is easier: Open a cmd prompt as administrator, and type path /? for instructions
After adding the path, add the device ID to the adb_usb.ini file using the instructions here.
After adding the device ID, make sure ADB access is enabled on the NOOK using the instructions here, then verify connectivity by using the instructions here. Run adb kill-server, then disconnect your NOOK
Two
Burn the CWM image file to an sdcard (4GB or greater) using win32diskimager . The CWM image file is found in this thread. Key note: all CWM and CM files for the NOOK HD will have the -hummingbird prepend. You can also download the CM-10.1 image and appropriate gapps version for CM from this thread. Do so.
Pop the sdcard into the NOOK HD and reboot. Once the CWM menu appears, connect the NOOK to your laptop. Windows 7 will not see the device, so you will need to re-install the drivers. Open device manager, look for a device in the list called Barnes and Noble HD (or similar) with a warning icon nearby, right click, select 'Update drivers...', choose the 'Search for driver software on my computer' option and navigate back to the folder where you unzipped the drivers. You will be using the SAME drivers that you downloaded initially.
Once driver install is complete, mount the sdcard using the menu options in CWM. Push the CM-10.1 zip file and gapps.zip file you downloaded to the sdcard using the command adb push <filename> /sdcard.
Install the CM10-1 file first, using the CWM menu options. Reboot the device using the CWM menu after installing CM before installing gapps. According to the instructions in this thread, you don't have to, however, with the three installs I've done so far, for the two that have worked successfully I've rebooted before installing gapps.
That's it. Hopefully these tips will help someone else with a NOOK HD.
I tried installing a second bootloader with Fireflash, and apparently I missed a step. This led to my Kindle being stuck in a bootloop. I bought a fastboot cable from ebay, which arrived today. When I connect with that cable, the logo changes to the fastboot logo, but anything I try with the KFHD System.img Restore Tool doesn't work, neither does Kindle FirstAide.
With KFHD System.img Restore Tool, I always get < waiting for device >.
I'm not sure what to do now, can anyone suggest anything?
You need to install the drivers for the device, open your task manager and hit update driver on the Tate device with a triangle next to it, and download the drivers in my signature, then after extracting them, poi t the update drivers wizard to the place you extracted the drivers to and let them install.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
stunts513 said:
You need to install the drivers for the device, open your task manager and hit update driver on the Tate device with a triangle next to it, and download the drivers in my signature, then after extracting them, poi t the update drivers wizard to the place you extracted the drivers to and let them install.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
Click to expand...
Click to collapse
I just tried that, and the wizard tells me that the hash is not present in the catalog file?
Ah your on windows 8, you need to first disable driver signature enforcement, Google it and then try again.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
Disable device driver signature enforcement -
Both must be done from the administrator profile to work right
Both of these are for Windows 7 X64 users.
Windows 7 X32 and earlier version users do not have this issue
A.
1. Reboot and on start up press F8 a couple times.
2. Scroll down to "Disable Driver Signature Enforcement."
Note: This must be done on every bootup you want to install something not MS signed.
B. For a more permanent solution.
1. First go and uninstall the driver (delete driver) you want to replace and then restart your computer.
2. Now go to the start menu and type cmd.
3. Right click on "cmd" and open a command prompt with elevated privileges (run as administrator.)
4. Now copy these in the command prompt one at a time hitting enter after each one.
bcdedit /set testsigning on
bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS
4. Now install the driver you want.
5. Restart the computer.
6. Profit.
Note: If you do this right, you will see "Test Mode Windows 7 Build 7601" (or something comparable) in the lower right corner of your screen. This means that drivers not signed by MS can be installed without getting the Windows has installed the best driver already bit.
If you opt to take your computer out of test mode, the drivers will more than likely be replaced by MS drivers next time. Following steps 1,2 and 3 in part B of tutorial, copy these commands in the command prompt one at a time hitting enter after each one.
bcdedit.exe -set loadoptions
ENABLE_INTEGRITY_CHECKS bcdedit.exe -set TESTSIGNING OFF
Since I don't have Windows 8 to do a personal tutorial, I'll just link to a good tutorial for that.
http://www.fotoclubinc.com/blog/how...on-of-windows-7-printer-drivers-on-windows-8/
Hi
(Sorry for my little english, feel free to speak french if you can)
I have try to root my 4X HD for using a better recovery app (recover pictures deleted in sd card, now you know my skill). I have use this page: (as newbie i cant post outside links)
n fact, I never had an Android device where this was that easy to achive! Our friends at XDA-Developers offer a guide and the necessary tools in this thread. Having a "Microsoft free zone" and "only" running Linux machines (yeah, even the Android ones run a Linux kernel), I was able to follow up those steps with a little adaption here and there -- and so I will sum up the results for Windows and Linux users as well:
Preparation
First you need to download the required tools, all of them available at the linked XDA-Developers thread:
o4xr.zip is the rooting toolkit
IS11LG_SystemBackupTest.signed.apk to prepare your device
Windows users only: LGUnitedMobileDriver_Ver_3.7.2_LG-P880_LGO4XHD.zip -- the Windows drivers for the device
Having everything downloaded, some additional steps are necessary at your computer:
Windows users only: Unzip and install the drivers
Linux users: Make sure adb is able to detect the device (check with adb devices). If it's not, see at the end of this answer for some hints.
Everybody: Copy IS11LG_SystemBackupTest.signed.apk to your Optimus (e.g. after connecting it via USB in MTP mode, copy the file to the internal SDCard)
Everybody: Create a new directory, unzip o4xr.zip there, and change into this directory.
The rooting process
On your Optimus, go to Settings→Security and make sure "Unknown Sources" is TICKED (i.e. contains a checkmark)
Go to Settings→Developer Options and enable "USB Debugging"
Now install IS11LG_SystemBackupTest.signed.apk (e.g. use a file explorer to find and "launch" it)
Open the "SystemBackupTest" app you just installed. Nothing spectacular will happen, so don't be disappointed here.
Hold the power button and choose "Power off and restart".
When you can see the lock screen, you may notice that the phone is running very slowly, this is normal.
Once the device is fully started up again, connect it to your computer with an USB cable. Make sure the phone is in "Charging Only" mode.
On your PC, open a terminal (Linux) resp. command (cmd.exe, Windows) window and change into the directory you've extractedo4xr.zip` into.
(on Windows, you may need admin privileges: right click, run as administrator. On Linux it did fine for me without superuser/root permissions)
Now run the rooting script:
Windows users: type root followed by the enter key
Linux users: type ./root-linux.sh, also followed by the enter key
Any Mac users? Type ./root-mac.sh, also followed by the enter key. Don't worry, it won't root your Mac/Linux machine (Windows users: it is unlikely to root your box, either
DO NOT DISCONNECT YOUR PHONE WHILE THE SCRIPT RUNS! Wait while it does its job. During that process, the phone will reboot automatically a couple of times. The script will inform you about this in your command/terminal window. Once the command/shell prompt returns, the misdeed is accomplished
Now uninstall SystemBackupTest from your Optimus. Do not launch it again at this state, or you might have to start over from step 5
On your phone, open up Google Play Store and search for "SuperSU". Update the app when prompted, then open it. Press OK to update the SU binary.
You now have root and can safely restore the "Unknown Sources" and "USB debugging" settings back to how you had them! Congratulations! Next steps are to install Titanium Backup, LBE Privacy Guard, and all the other things you might need and which require root!
At step 8. i got "command not found" in Terminal (Linux Mint), assuming script don't work i have reboot my device.
Since my phone boot but is very very slow and screen is friezed, even if i can unlock my SIM card by memory pattern (without sim card and always by memory i can see Settings of android but not down the list).
In recovery boot (Sound up + Power), my device show me a picture that would say "dont unplug charge and usb".
I guess my phone is not rooted, adb can list it but not fastbood. LG software (on windows 7) cant communicate with it because usb driver not work. I guess i've try and read more since 8 hours but my brain is off right now. Any help will be very welcome.
Cheers