[How-To] Root LG Optimus S

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Between the boots

hello all!

excited to have just gotten my optimus s and am looking forward to rooting it.just switched over from windows mobile and know nothing :(

unfortunately i've already hit a jam. when i try to install android sdk it says i need to install jdk even though i already have...:confused: don't know how to get around this.help please

edit: nvm i just downloaded the zip and unzipped that in my c drive

^ thanks for saying that simon i must have done the process a bunch of times until doing it your way finally got it to work

Hey no problem, glad it was helpful, I was suprised I was the first to bump into that.
 
root optimus s using ubuntu 10.04

java: openjdk-6-jre from repo
drivers: none needed :) ubuntu 10.04 has them


android SKD from original post in this thread. the only reason you need the SDK is to get adb you do not need to have it running to root your phone. launch skd from terminal and install the SDK platform tools.

User-Name@PC-Name:~$ cd /your_skd_location/platform-tools

test connection:

User-Name@PC-Name: /your_skd_location/platform-tools$ sudo su
enter your password
root@PC-Name: /your_skd_location/platform-tools# ./adb devices

if you get "????????? no permissions....." then

root@PC-Name: /your_skd_location/platform-tools# ./adb kill-server
root@PC-Name: /your_skd_location/platform-tools# ./adb start-server
root@PC-Name: /your_skd_location/platform-tools# ./adb devices

you should then have, of course this is my device your device number will be different.


"List of devices attached
A0000021FDB085 device"

follow directions at stated in original post in this thread and you have it.

It took me 6 tries before my would root.
 
root optimus s using ubuntu 10.04

java: openjdk-6-jre from repo
drivers: none needed :) ubuntu 10.04 has them


android SKD from original post in this thread. the only reason you need the SDK is to get adb you do not need to have it running to root your phone. launch skd from terminal and install the SDK platform tools.

User-Name@PC-Name:~$ cd /your_skd_location/platform-tools

test connection:

User-Name@PC-Name: /your_skd_location/platform-tools$ sudo su
enter your password
root@PC-Name: /your_skd_location/platform-tools# ./adb devices

if you get "????????? no permissions....." then

root@PC-Name: /your_skd_location/platform-tools# ./adb kill-server
root@PC-Name: /your_skd_location/platform-tools# ./adb start-server
root@PC-Name: /your_skd_location/platform-tools# ./adb devices

you should then have, of course this is my device your device number will be different.


"List of devices attached
A0000021FDB085 device"

follow directions at stated in original post in this thread and you have it.

It took me 6 tries before my would root.

So you didn't have to create /etc/udev/rules.d/70-android.rules as described at:
Setting Up ADB/USB Drivers for Android Devices in Linux (Ubuntu) ? Esau Silva
 
I posted an earlier thread about my adb bringing up an error for having multiple devices or emulators. I try to use shell and the error comes up every time. I have tried "adb emu exit". this just says there is no emulator running. My deductive reasoning skills tell me that the error then lies in multiple devices. I got a # once, but it changed back into a $ and so I ran the rooting process again. I am thinking that I should factory reset my phone. My question is does this reverse the rooting process? I think I rooted it twice... This is probably a simple question. I am completely new at this. Just for reference though my phone is an optimus S v9 and it was working like a dream until all this happened. I can still use my phone as USB connected device, but am unable to tether via easy tether (which seconds before adb shell stopped working was just fine).

I'm running into the same exact thing. I'm on

android 2.2.1
kernel 2.6.32.9
build frg83
software ls670zv9
 
problem solved

I factory reset my phone. I probably didn't need to. I used a stock pohone and the same thing kept coming up. My SDK was acting really funny. THE PROBLEM FIX WAS JUST RESTARTING THE PHONE( NOT FACTORY RESET) AND RESTARTING THE COMPUTER. My errors were ranging to having more than one device while connected, to having no device. It was just simply a matter of restarting the computer and phone a few times. I realize no I was stuppid and ran rageagainstthecage twice when I first attempted. If you get a # from adb shell DONT RUN RAGEAGAINSTTHECAGE AGAIN. Just continue with the steps. I also ran into another problem which KSmith already addressed but didnt include in the first post which was that my permissions were denied when I tried to use busybox. I looked at the directions given to the person with the same problem which was something like

busybox --install........

and my busybox was intalled and is now working. My phone is now rooted. Its nice becasue I can basically customize the phone however I want. I have tried looking for apps that would let me use my phone as a router (I don't really need the hotspot) but to no avail. If anyone has suggested apps that would be nice.

In short the problems I ran into were that I got errors of more than one device or emulator when I tried to run adb shell. The fix for that was just restarting the computer and phone. The other problem was that busybox was denying permissions when I tried to access it and KSmith already adressed that issue earlier. The soultion is to use a few different commands to chmod 4755 busybox before running adb shell and then install busybox.

I have an optimus s V9. The only slight deviation I noticed from the other comments is that my phone only disconnected and reconnected in a matter of seconds and not minutes. Thanks for everyone's help and good luck to those having problems.
 
I'm running into the same exact thing. I'm on

android 2.2.1
kernel 2.6.32.9
build frg83
software ls670zv9


I FINALLY got success rooting with Z4root. I was unknowingly using 1.1.0. I found the 1.3.0 apk, adb installed it and it rooted first time. thanks!
 
replacing sprint ID icon on homescreen

hey guys, I rooted my phone and uninstalled the sprint id. Now the questions is, is there anyway for me to replace the ID icon on the homescreen with something else? I would like to replace it with a web browser icon.
 
hey guys, I rooted my phone and uninstalled the sprint id. Now the questions is, is there anyway for me to replace the ID icon on the homescreen with something else? I would like to replace it with a web browser icon.

Well if you rooted your phone your half-way to installing a Custom Rom...did you maybe try installing the custom recovery so you can install a ROM?

An alternative would be using a different launcher....
 
i downloaded everything you say i need, and i get to command prompt and i get to my tools folder and copy and paste the first thing you say to do which is adb push rageagainstthecage-arm5.bin /data/local/tmp/rageagainstthecage. and i get a message the says ' adb' is not recognized as an internal or external command, operable program or batch file.

what am i doing wrong?
 
i downloaded everything you say i need, and i get to command prompt and i get to my tools folder and copy and paste the first thing you say to do which is adb push rageagainstthecage-arm5.bin /data/local/tmp/rageagainstthecage. and i get a message the says ' adb' is not recognized as an internal or external command, operable program or batch file.

what am i doing wrong?

Why not just use z4root?

Go here... [APP] z4root - xda-developers
login and download the 1.3.0 attachment.

adb install z4root.1.3.0.apk

Go to z4root on the phone and hit the root button. It restarts and you are rooted.
 
Why not just use z4root?

Go here... [APP] z4root - xda-developers
login and download the 1.3.0 attachment.

adb install z4root.1.3.0.apk

Go to z4root on the phone and hit the root button. It restarts and you are rooted.

The problem with that is that then, if you want to do anything more, (like install a custom recovery), you need adb anyway...

Mitch, like already stated, make sure you are in the \tools\ directory before starting to copy and paste...
 
i tried doing z4root..it said it couldnt be downloaded for some reason.

and im pretty sure i am in the tools directory, in command prompt i type c:\android\android-sdk-windows\tools
then hit enter. then copy and paste, i get that message every time..
 
should i be in platform tools? i found a folder called platform tools, and adb was in there? should i move that folder to the tools folder and keep goin? or should i just work out of the platform tools folder?
 
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