[How-To] Root the LG Optimus V

**RevolutionRed** · 02-13-2011, 06:49 PM

Originally Posted by whats in a name

Maybe this is where I am having problems. I am running Windows XP on an old sony vaio and every time I plug my phone into the USB it pops up with the "new hardware found and mounts it as USB drive. How do I stop this? Should I stop this?

I went through all of the directions and TitaniumBackup is still showing that I do not have it rooted.
SO I'm confused as to where I am going wrong.

Sorry I am a completely new to any of this. Any help will be appreciated.

My best guess is that your USB drivers did not install correctly. Try uninstalling them and re installing them according to the directions in the first post. Someone else with XP reported a problem earlier in the thread, and I told them to try to the same thing. I didn't hear back whether it worked or not. It may just be a problem on XP.

**RevolutionRed** · 02-13-2011, 06:52 PM

Originally Posted by Dr.Hax

Everything goes well until I enter "exit" (then it cant find any of the files)

Help!

Sounds like you may have forgotten to unzip the attached file into your platform-tools directory. Browse to that directory and verify that the files are there before you start. Let me know if that's not the problem.

**RevolutionRed** · 02-13-2011, 06:54 PM

Originally Posted by larryc

Regarding Step 4, I don't think you need to suid (e.g, chmod 4755) busybox:

I would change that line to:
chmod 555 busybox
This is better for a security perspective. Only the su command needs to be suid root.

Good point. Occasionally third party tools such a Titanium Backup require the use of busybox to do their thing. I'm not sure what kind of permissions they require. Did you try this by using 555, and if so, did it work?

**Dr.Hax** · 02-13-2011, 07:08 PM

Nope, both of the files are there.

**whats in a name** · 02-13-2011, 07:19 PM

Originally Posted by RevolutionRed

My best guess is that your USB drivers did not install correctly. Try uninstalling them and re installing them according to the directions in the first post. Someone else with XP reported a problem earlier in the thread, and I told them to try to the same thing. I didn't hear back whether it worked or not. It may just be a problem on XP.

So if it is XP... (I'll try again tomorrow evening and let you know...)
Does anyone know how to get root using MAC?
I'm running snow leopard and I can't find any threads about using a Mac to root an android.

**RevolutionRed** · 02-13-2011, 07:26 PM

Originally Posted by Dr.Hax

Nope, both of the files are there.

Hmm.. Ok, what are there exact errors you are getting? I'll see if I can't figure out what's up.

**RevolutionRed** · 02-13-2011, 07:34 PM

Originally Posted by whats in a name

So if it is XP... (I'll try again tomorrow evening and let you know...)
Does anyone know how to get root using MAC?
I'm running snow leopard and I can't find any threads about using a Mac to root an android.

Hypothetically you could do thing same thing from a Mac or a Linux box with the android SDK installed, but you'd have to do the SuperOneClick part manually. It simply automates a few ADB commands (like the ones you type at the end) to run a file on your phone that gives you a temporary root.

is site that has a little information about how to use psneuter (which is the name of the program SuperOneClick runs to give you temporary root access). Do a little research on it and you should be able to crack the phone from a Mac or Linux box as well.

**Dr.Hax** · 02-13-2011, 07:59 PM

Originally Posted by RevolutionRed

Hmm.. Ok, what are there exact errors you are getting? I'll see if I can't figure out what's up.

Take a look at the screen shot I attached.

**RevolutionRed** · 02-13-2011, 08:09 PM

Originally Posted by Dr.Hax

Take a look at the screen shot I attached.

You need to be in the correct folder to run the commands. adb only exists in the platform-tools folder. Type this after you exit:

c:\android\android-sdk-windows\platform-tools\

After that. your prompt should look like:

c:\android\android-sdk-windows\platform-tools>

instead of

c:\users\eric>

then try the adb push command again. Let me know if this works for you.

**larryc** · 02-13-2011, 08:15 PM

Originally Posted by RevolutionRed

Good point. Occasionally third party tools such a Titanium Backup require the use of busybox to do their thing. I'm not sure what kind of permissions they require. Did you try this by using 555, and if so, did it work?

Yes, it worked.

**RevolutionRed** · 02-13-2011, 08:33 PM

Originally Posted by larryc

Yes, it worked.

Fixed in original post.

**Kuroxasch** · 02-14-2011, 08:43 AM

wow just wow, a 5 minute root guide. It worked perfectly thanks

**RevolutionRed** · 02-14-2011, 02:50 PM

Originally Posted by Kuroxasch

wow just wow, a 5 minute root guide. It worked perfectly thanks

Well, 5 minutes after you've downloaded and installed all the prerequisites.

**Dr.Hax** · 02-14-2011, 03:36 PM

Originally Posted by RevolutionRed

You need to be in the correct folder to run the commands. adb only exists in the platform-tools folder. Type this after you exit:

c:\android\android-sdk-windows\platform-tools\

After that. your prompt should look like:

c:\android\android-sdk-windows\platform-tools>

instead of

c:\users\eric>

then try the adb push command again. Let me know if this works for you.

Now i'm getting this error. Thanks for your help so far!

**RevolutionRed** · 02-14-2011, 03:40 PM

Originally Posted by Dr.Hax

Now i'm getting this error. Thanks for your help so far!

doh! I'm a moron. I forgot to tell you to put in a cd (change directory) before typing that line. After you type exit, enter:

cd c:\android\android-sdk-windows\platform-tools\

**Dr.Hax** · 02-14-2011, 04:30 PM

Success! Thank you so much!

+Rep

**denshigomi** · 02-15-2011, 07:49 PM

Does this overwrite any stock files? It's pushing su and busybox. Are either of those being overwritten?

Someone with a stock phone, please check this and post the stock versions if they exist.

To save the stock programs, follow step 1 through 3 of RevolutionRed's guide, and do the "cd c:\wherever-your-sdk-tools-folder-is" command in step 4. Then issue the following commands:

adb shell
mount -o remount,rw -t yaffs2 /system /system
exit
adb pull /system/bin/su stock-su
adb pull /system/bin/busybox stock-busybox

If there is no stock file, the adb pull command will return the following message:

remote object '/system/bin/<filename>' does not exist

If either of the pull commands succeeds, please post the resulting file.
Thank you thank you!

**RevolutionRed** · 02-15-2011, 07:58 PM

Originally Posted by denshigomi

Does this overwrite any stock files? It's pushing su and busybox. Are either of those being overwritten?

Someone with a stock phone, please check this and post the stock versions if they exist.

To save the stock programs, follow step 1 through 3 of RevolutionRed's guide, and do the "cd c:\wherever-your-sdk-tools-folder-is" command in step 4. Then issue the following commands:

If there is no stock file, the adb pull command will return the following message:

If either of the pull commands succeeds, please post the resulting file.
Thank you thank you!

Nope. The files don't exist the stock rom. Both the files are pushed with the express purpose of giving you root access to your file system. To unroot the phone, simply delete the files.

**iCr34t1ve** · 02-15-2011, 08:16 PM

Hello,
I am a new android user (bought my phone today), and I just rooted my LG Optimus V. How do I flash custom ROMs onto it?
Thanks!

**denshigomi** · 02-15-2011, 09:54 PM

Originally Posted by RevolutionRed

Nope. The files don't exist the stock rom. Both the files are pushed with the express purpose of giving you root access to your file system. To unroot the phone, simply delete the files.

Whew! I thought I had obliterated stock files without a backup. You're my hero. ^_____^

Originally Posted by iCr34t1ve

Hello,
I am a new android user (bought my phone today), and I just rooted my LG Optimus V. How do I flash custom ROMs onto it?
Thanks!

Here you go:
http://forum.androidcentral.com/opti...tml#post592506

**jnt_ip** · 02-16-2011, 02:13 AM

Thanks for this - just got this phone... downsized our budget for it. I've had/hacked a Droid 1, HTC Incredible, and Droid X. I'm not able to find much info about the stock kernel that comes on the Opt-V - do you have any idea how much, if any, it can be OC'd?

**denshigomi** · 02-16-2011, 02:24 AM

Originally Posted by jntdroid

Thanks for this - just got this phone... downsized our budget for it. I've had/hacked a Droid 1, HTC Incredible, and Droid X. I'm not able to find much info about the stock kernel that comes on the Opt-V - do you have any idea how much, if any, it can be OC'd?

RevolutionRed got it to 825Mhz
http://forum.androidcentral.com/opti...-beta-2-a.html

**jnt_ip** · 02-16-2011, 08:52 AM

Originally Posted by denshigomi

RevolutionRed got it to 825Mhz
http://forum.androidcentral.com/opti...-beta-2-a.html

it sounds like that's a custom kernel, though, not stock

with the Droid and Droid X, the stock 2.2 kernel was overclockable, and i prefer to have my phone be straight-up stock with root, and a little OC - I typically don't like messing with custom ROMs (any more, anyway!

)

**jnt_ip** · 02-16-2011, 08:53 AM

Originally Posted by jntdroid

it sounds like that's a custom kernel, though, not stock

with the Droid and Droid X, the stock 2.2 kernel was overclockable, and i prefer to have my phone be straight-up stock with root, and a little OC - I typically don't like messing with custom ROMs (any more, anyway!

)

i guess once I get root access I can just try it and see what it can do, but I was hoping to just hear from someone who has already tried it with the stock kernel before I started tinkering

**RevolutionRed** · 02-16-2011, 01:39 PM

Originally Posted by jntdroid

i guess once I get root access I can just try it and see what it can do, but I was hoping to just hear from someone who has already tried it with the stock kernel before I started tinkering

Unfortunately, there is no way to overclock with the stock kernel. However, there are 2 or 3 kernels floating around that should work, if you want to test a few. Any kernel that works on the optimus S should work on the V, although some have a few issues.

Additionally, for everyone that cares, there's a port of Gingerbread (Android 2.3) for the S that's reported working on the V.