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Old 12-06-2010, 05:52 PM   #1
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How to root the LG Optimus S

I did not write this up (Thanks go to KSmithInNY @ Android central) but figured I'd post it here since I'm guessing with the Free Optimus S promotion that just ended a lot of people will be looking for this information.

http://forum.androidcentral.com/lg-o...optimus-s.html

Anwhere you see a command you are supposed to do in the command line window you should just copy and paste and then hit enter (right click paste in the window because Ctrl V will get you nowhere)

there is also a video tutorial found here

Quote:
What You'll Need:

- Optimus S Root Files (unzip and

- Sun JRE, FOUND HERE

- The Android SDK, FOUND HERE. Install this on the root of your computer so the path is C:/android

- Drivers for the LG phone installed on your computer. Instructions can be FOUND HERE courtesy of our favorite android hacker, modder, developer, blogger (jack of all trades) gbhil

- And the file I have attached to this post. Download it, unzip it, and put the 3 files inside in your android-sdk-windows\tools folder created from installing the SDK.

/\You need to have installed/done all of the stuff in the "what you'll need" section. From this point on I'll assume you've done that./\

This method has been confirmed on V6, V8, and V9 versions of the Optimus S software.
Ready?:
Step 1: Plug your phone into your PC with the USB cable.

Step 2: Make sure the phone is charge only (don't mount as USB drive) and USB debugging is enabled. Menu > Settings > Applications > Development > check mark USB debugging

Step 3: Launch the SDK manager, should be something like C:/Android-sdk-windows SDK Manager

Step 4: Open a CMD window and type the following:
cd c:\wherever-your-sdk-tools-folder-is (mine for example is C:\android\tools)

adb push rageagainstthecage-arm5.bin /data/loca/tmp/rageagainstthecage

adb push su /data/local/tmp/

adb push busybox /data/local/tmp/

adb shell

chmod 4755 /data/local/tmp/rageagainstthecage

chmod 4755 /data/local/tmp/busybox

cd /data/local/tmp

./rageagainstthecage (let things sit for about 5 - 10 min, your phone will disconnect from the computer and you'll be removed from your ADB session)

AT THIS POINT LET YOUR PHONE SIT FOR ABOUT 10 MINUTES! I know this may seem odd but I tried this about 10 times myself and couldn't get it to work until I just waited longer.


adb shell

This should return a "#" symbol instead of a "$" symbol. If it does you're good. If not go back and start from the beginning of step 4


mount -o remount,rw -t yaffs2 /dev/block/mtdblock4 /system

cd /data/local/tmp

./busybox cp su /system/bin

./busybox cp busybox /system/bin

cd /system/bin

chmod 4755 su

chmod 4755 busybox

exit

exit

Step 5: Go to the android market on your phone and download "Superuser"(free). The developer will be listed as ChainsDD.

Donations:
What I ask is, if this helps you root, tweak, or modify your phone, please watch this thread and help someone who may be experiencing issue. Yes, I am asking you to donate your time. The same donation I made while writing this so you could root your phone

Thanks:
gbhil - as always thanks, you rock rainman lol.
Sebastian Krahmer - Without your exploit many phones would not be rooted today.
iamlilysdad - for making the walkthrough video and sticking around and providing so much support for new users during this process.
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Old 12-06-2010, 05:54 PM   #2
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Old 12-06-2010, 07:31 PM   #3
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ITs easier to just join symbiantalk.net and get z4root. it roots ur phone with one click.
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Old 12-06-2010, 07:55 PM   #4
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Quote:
Originally Posted by loveshinesthru View Post
ITs easier to just join symbiantalk.net and get z4root. it roots ur phone with one click.
true however if you use z4root then you won't be able to use custom roms or use a custom recovery.

No nandroid backup or fun optimized roms with z4root.

This way is really not hard at all. Once you install the Android SDK and get a command prompt window open all it really is is copy and paste the commands.
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Old 12-07-2010, 07:23 AM   #5
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I'm a noob to rooting: what are the benefits?
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Old 12-07-2010, 07:25 AM   #6
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I love you, Google:
http://www.talkandroid.com/7686-what...droid-rooting/

Still, any particular benefits for the Optimus?
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Old 12-07-2010, 08:55 AM   #7
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a bit better performance as well as the usual benefits of root only apps and such. Removal of Sprint junk etc.
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