[How-To] Root LG Optimus T

[acast2101]

I need to post

 

[ryan1216]

Thank you this really helped

 

[Csimon]

I'm new to android... Just root my optimus t.. Need help with next step.. Install recovery
wht is the simple way to install flash and recovery

Is there any new version of recovery-RA-GNM-OPT-T-test.img.zip file?
I having trouble download flash image file from link above... Any suggrstion thanks

 

[Kryte]

Expecting my Optimus T to come in today, should have it rooted later tonight. Thanks for the great guide.

 

[bogie0315]

Great Job

 

[atarilynx]

thanks...much appreciated!

 

[Pandastratton]

WARNING - This is a cat and mouse game we play with manufacturers. I guarantee you an update will come from LG that patches this exploit and will prevent people from rooting. It will also close your root access if you've already rooted using this method. Long story short, NEVER ACCEPT OTA UPDATES FROM THE CARRIER OR MANUFACTURER.

Notice: There is now an application available called z4root which roots your phone using the same method detailed below. This has been confirmed to work on the Optimus line. Click THIS for more information. I feel the knowledge gained by doing this process yourself rather than a 1-click method will prove to be invaluable down the road if/when you encounter any issues but either way works.

For those who learn visually, iamlilysdad has put together an awesome walkthrough video of this process which you can find HERE

What You'll Need:
- 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./\

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 however in the new SDK the correct directory would be "Platform Tools", and not just "tools". See what you have on your directory)
adb push rageagainstthecage-arm5.bin /data/local/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 a couple minutes (2), your phone will disconnect from the computer and you'll be removed from your ADB session)
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
busybox --install /system/bin
exit
exit

If you get to this step "busybox --install /system/bin" you get an error, do this:

4-A) Download superuser (free) from chainsDD in the market (this is step 5 below)
4-B) Download titanium backup (free) in the market
4-C) Launch titanium. You should get a request to give it root permissions select always allow. Now in titanium, hit the "problems" button and let it install busybox
4-D) Reboot phone and enjoy

Some phones are having a problem on that step while others are not.

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, 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.

1st post to dl stuff

 

[msfotos]

thanks

 

[mn12o12]

Thank you for the help!

 

[wtfomg]

WARNING - This is a cat and mouse game we play with manufacturers. I guarantee you an update will come from LG that patches this exploit and will prevent people from rooting. It will also close your root access if you've already rooted using this method. Long story short, NEVER ACCEPT OTA UPDATES FROM THE CARRIER OR MANUFACTURER.

Notice: There is now an application available called z4root which roots your phone using the same method detailed below. This has been confirmed to work on the Optimus line. Click THIS for more information. I feel the knowledge gained by doing this process yourself rather than a 1-click method will prove to be invaluable down the road if/when you encounter any issues but either way works.

For those who learn visually, iamlilysdad has put together an awesome walkthrough video of this process which you can find HERE

What You'll Need:
- 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./\

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 however in the new SDK the correct directory would be "Platform Tools", and not just "tools". See what you have on your directory)
adb push rageagainstthecage-arm5.bin /data/local/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 a couple minutes (2), your phone will disconnect from the computer and you'll be removed from your ADB session)
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
busybox --install /system/bin
exit
exit

If you get to this step "busybox --install /system/bin" you get an error, do this:

4-A) Download superuser (free) from chainsDD in the market (this is step 5 below)
4-B) Download titanium backup (free) in the market
4-C) Launch titanium. You should get a request to give it root permissions select always allow. Now in titanium, hit the "problems" button and let it install busybox
4-D) Reboot phone and enjoy

Some phones are having a problem on that step while others are not.

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, 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.

thank you

 

[armando467]

i have a optimus s that was flashed to cricket. will this remove the flash?

 

[hawksters]

Thanks! 10char

 

[chadntx]

Thanks for this.

 

[SionX]

Thanks for the detailed instructions ^_^ Hopefully I can get it to work.

 

[koheni]

I just obtained a manual version of the LG update for the Optimus T (t-mobile). Has anyone used this and tried to root with this process or vis-a-versa?

 

[jntruong2003]

thanks a lot for the how to directions

 

[HozeRapha]

Thanks a lot, let's see if I can make this work ^^

 

[koheni]

I've made it to Step 4 - ./rageagainstthecage - only to receive an error: device not found - when trying to access adb shell. Was unable to redo from beginning of step 4 w/o restating my computer. Used copy text method as suggested....

Any suggestions?

 

[pantunflauser]

Thank you!

 

[Crete21]

Wow, THx! This is sooooo cool =)