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Old December 29th, 2013, 05:59 AM   #1 (permalink)
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Default [GUIDE] Howto Root LG Optimus F3

Root

Disclaimer: rooting your phone entails risk. You may brick it, cause it to catch fire, cause it to form the first node in the Skynet network, or otherwise render it inoperable. Please read the directions carefully to ensure that nothing unexpected happens. This rooting tool is safe for the most part, but there's never any guarantees.

For a video showing the steps to root, see Galaxy S4 Build MK2 and MJ7 root instructions - YouTube
(basically the same)

This method is confirmed working with T-Mobile and MetroPC F3 after "b" and "c" updates.

Android version 4.1.2
Software version P65910b

Android version 4.1.2
Software version MS65910c

Step 1 - setting up the USB drivers
Before you try using this rooting program, you'll need to have the USB drivers installed for your phone.

The easiest way to do this is to install LG USB Driver. LGUnitedMobileDriver_S50MAN310AP22_ML_WHQL_Ver_3.1 0.1.exe

If you don't have the drivers working, the root installer will hang at "waiting for device..."

Step 2 - Enable USB Debugging
The second thing you must do is to enable USB debugging on your phone. Go to "Settings", "More...", then "Developer Options".
If "Developer Options" doesn't appear, then you'll need to enable it - go to "Settings", "More", "About Phone". Scroll down so the "Build Number" is visible, then tap on that several times until developer mode is enabled.

In Developer Options, make sure "USB Debugging" is checkmarked.

Make sure Media sync (MTP) is checked

That's it for the phone.

Step 3 - Unzip the saferoot.zip
saferoot.zip
Then you need to unpack the attached ZIP file somewhere onto your PC.
You should have the following when done:
- a file called "install.bat"
- a file called "install.sh"
- a folder called "tools"

Step 4 - Root your phone
Double click on the "install.bat" to run the root. It will root and reboot your phone. Once that's done, you're rooted!

Rooting on Linux and MacOS
You'll need to have the Android Debugging Bridge (adb) installed and configured and on your path. You can test that it's ready by opening a shell (Terminal) window and typing "adb shell". If you get a shell prompt on the phone, type "exit" and you're ready to go.

Open a shell window, use "cd" to change to the directory where you unpacked the zip, and type "sh ./install.sh".

Notes
Don't try to download this onto your phone and run it from there. That won't work.
Having troubles getting adb connected? There are several possible causes and solutions.
When adb first connects to your phone, it will display a dialog box reading "Allow USB debugging?"
You may need to turn on your phone to see that. Tap on the "Always allow from this computer" checkbox to enable it, and tap "OK".

There are cases where people can't get the connection working unless they toggle the USB connection type from Camera to Media and back. Perhaps that may help getting it to work.

Source: [ROOT] Saferoot: Root for VRUEMJ7, MK2, and Android 4.3 - xda-developers

Thanks to: please thank dschach who posted the method here. and please thank the original poster k1mu from xda developers.

[GUIDE] Unbrick OR Unroot LG Optimus F3 [KDZ]
[GUIDE] LG Optimus F3: Apps to SD Card


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Old December 31st, 2013, 09:23 AM   #2 (permalink)
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The link to the saferoot file isn't working
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Old December 31st, 2013, 10:40 AM   #3 (permalink)
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Use this link which appears further down in that post-
[ROOT] Saferoot: Root for VRUEMJ7, MK2, and Android 4.3 - xda-developers
There is a link in the xda thread to download the file, that link is working as of now.
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Old December 31st, 2013, 11:59 AM   #4 (permalink)
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Originally Posted by Dark Creation View Post
The link to the saferoot file isn't working
Link Update: saferoot.zip
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Old December 31st, 2013, 12:51 PM   #5 (permalink)
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Ok,I've i have the lg drivers and the safe root. However, when i open the saferoot and double click runbat i get the black popup screen, it tells me to press any key to continue. I press a key then the black popup screen closes. Am i doing something wrong?
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Old December 31st, 2013, 02:00 PM   #6 (permalink)
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Did you unzip the files? It won't run from the zip, you have to extract it first. Also the phone USB mode should be in "charge only".
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Old December 31st, 2013, 03:22 PM   #7 (permalink)
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I did it! Thanks alot bro!
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Old December 31st, 2013, 07:02 PM   #8 (permalink)
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Quote:
Originally Posted by duper1 View Post
Step 3
Then you need to unpack the attached ZIP file somewhere onto your PC.
You should have the following when done:
- a file called "install.bat"
- a file called "install.sh"
- a folder called "tools"
.
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Old January 1st, 2014, 12:03 PM   #9 (permalink)
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i have a mac how do you unzipp a file
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Old January 1st, 2014, 12:05 PM   #10 (permalink)
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i have a folder that is called saferoot in my downloads i then open it and get a folder called files a file called install.bat and a file called install.sh and their is not folder called tools.
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Old January 1st, 2014, 12:38 PM   #11 (permalink)
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No, there isn't a tool folder. However, i didn't need it. Everything was provided with saferoot. Just install the drivers so your cpu recognizes your phone, and run install.bat once extracted and you're good to go
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Old January 1st, 2014, 11:58 PM   #12 (permalink)
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Default is their a way to root with out pc

I have an old macbook pro and all this down load stuff is hard for me to understand im a little slow .i dont get how to do stuff like extracting files and running them. is their a way to root with out pc, i did it on a zte by cricket it seemed so easy. Oh yeah can anybody tell me what no su bianary meen.
im sorry in advance for my ignorance
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Old January 2nd, 2014, 12:19 AM   #13 (permalink)
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Quote:
Originally Posted by Franknmaria View Post
I have an old macbook pro and all this down load stuff is hard for me to understand im a little slow .i dont get how to do stuff like extracting files and running them. is their a way to root with out pc, i did it on a zte by cricket it seemed so easy. Oh yeah can anybody tell me what no su bianary meen.
im sorry in advance for my ignorance
just follow the steps described for OS X users. Just double click a file to extract it and then follow through with using Terminal... no need to install anything else on OS X ..
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Old January 9th, 2014, 05:07 PM   #14 (permalink)
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Quote:
Originally Posted by duper1 View Post
Link Update: saferoot.zip
"invalid Attachment specified. This can happen for a variety of reasons-- most likely because the thread or post you are trying to view has been moved or deleted. Please return to the forum home and browse for another similiar post."

links dead..
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Old January 9th, 2014, 06:28 PM   #15 (permalink)
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Get it here-
[ROOT] Saferoot: Root for VRUEMJ7, MK2, and Android 4.3 - xda-developers
(link is already posted earlier in the thread but here it is again)
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Old January 20th, 2014, 04:49 PM   #16 (permalink)
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Quote:
Originally Posted by duper1 View Post
Root

Disclaimer: rooting your phone entails risk. You may brick it, cause it to catch fire, cause it to form the first node in the Skynet network, or otherwise render it inoperable. Please read the directions carefully to ensure that nothing unexpected happens. This rooting tool is safe for the most part, but there's never any guarantees.

For a video showing the steps to root, see Galaxy S4 Build MK2 and MJ7 root instructions - YouTube
(basically the same)

This method is confirmed working with T-Mobile and MetroPC F3 after "b" and "c" updates.

Android version 4.1.2
Software version P65910b

Android version 4.1.2
Software version MS65910c

Step 1 - setting up the USB drivers
Before you try using this rooting program, you'll need to have the USB drivers installed for your phone.

The easiest way to do this is to install LG USB Driver. LGUnitedMobileDriver_S50MAN310AP22_ML_WHQL_Ver_3.1 0.1.exe

If you don't have the drivers working, the root installer will hang at "waiting for device..."

Step 2 - Enable USB Debugging
The second thing you must do is to enable USB debugging on your phone. Go to "Settings", "More...", then "Developer Options".
If "Developer Options" doesn't appear, then you'll need to enable it - go to "Settings", "More", "About Phone". Scroll down so the "Build Number" is visible, then tap on that several times until developer mode is enabled.

In Developer Options, make sure "USB Debugging" is checkmarked.

Make sure Media sync (MTP) is checked

That's it for the phone.

Step 3 - Unzip the saferoot.zip
saferoot.zip
Then you need to unpack the attached ZIP file somewhere onto your PC.
You should have the following when done:
- a file called "install.bat"
- a file called "install.sh"
- a folder called "tools"

Step 4 - Root your phone
Double click on the "install.bat" to run the root. It will root and reboot your phone. Once that's done, you're rooted!

Rooting on Linux and MacOS
You'll need to have the Android Debugging Bridge (adb) installed and configured and on your path. You can test that it's ready by opening a shell (Terminal) window and typing "adb shell". If you get a shell prompt on the phone, type "exit" and you're ready to go.

Open a shell window, use "cd" to change to the directory where you unpacked the zip, and type "sh ./install.sh".

Notes
Don't try to download this onto your phone and run it from there. That won't work.
Having troubles getting adb connected? There are several possible causes and solutions.
When adb first connects to your phone, it will display a dialog box reading "Allow USB debugging?"
You may need to turn on your phone to see that. Tap on the "Always allow from this computer" checkbox to enable it, and tap "OK".

There are cases where people can't get the connection working unless they toggle the USB connection type from Camera to Media and back. Perhaps that may help getting it to work.

Source: [ROOT] Saferoot: Root for VRUEMJ7, MK2, and Android 4.3 - xda-developers

Thanks to: please thank dschach who posted the method here. and please thank the original poster k1mu from xda developers.

Unbrick Guide: [GUIDE] Unbrick OR Unroot LG Optimus F3 [KDZ]
Apps to SD Card:
[GUIDE] LG Optimus F3: Apps to SD Card
Worrking on Metro Pcs Optimus F3.
\
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Old January 22nd, 2014, 02:03 PM   #17 (permalink)
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Default Don't forget to run as administrator!

I had the same issues as above at first. Installed the driver set the pc connection type to media sync and the bat stopped when it tried to verify the phone was connected. Then it hit me "DUH" you have to run it as an administrator or it can't access anything. Once I did that it worked like a charm. Hope that helps someone and the OP is corrected to mention this.

If you don't know how what I'm talking about; Right click on the .bat file and select "Run as administrator" from the context menu.
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Old January 31st, 2014, 12:01 PM   #18 (permalink)
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Default can't see install.bat

it only shows install.sh and install
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Old January 31st, 2014, 06:58 PM   #19 (permalink)
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Quote:
Originally Posted by mmc770 View Post
it only shows install.sh and install
In the folder options on your PC you probably have "Hide extensions for known file types" checked. That would hide the .bat extension. If you click on "install" it should run.
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Old February 4th, 2014, 06:01 PM   #20 (permalink)
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Default After Successful root granted....phone ended up bricking...?????whats that about?

So, After I successfully rooted using this method ...a couple hours later my phone bricked .....so I guess over all it wasn't too successful ...anybody have any ideas why? ...my phone was the Lg Optimus F3 with virginmobile
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Old February 17th, 2014, 01:04 AM   #21 (permalink)
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Quote:
Originally Posted by _ThatGuy_ View Post
So, After I successfully rooted using this method ...a couple hours later my phone bricked .....so I guess over all it wasn't too successful ...anybody have any ideas why? ...my phone was the Lg Optimus F3 with virginmobile
- This post is located in the LG F3 MetroPCS and T-Mobile section of all things root. It clearly says working for MetroPCS and T-Mobile.
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Old March 1st, 2014, 04:21 PM   #22 (permalink)
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Default Is there help out there on 03/01/14?

I honestly believe that Richard Brandson and Google are spending big money to keep freelance developers at bay. I notice this Optimus F3 isn't the newest phone, so most of the info on the web goes back to mid last year and I have discovered formerly working to now be obsolete. Saferoot, motochopper, and framaroot, whether new or old, used with lg ls720 drivers or not, do not work today, 03/01/14. I even tried some Chinese root app. These don't work.

Yes, it could be me. I'm not perfect. I'm not entirely tech savvy, but following basic directions I can do. I've rooted in the past.

Can someone verify my conflicts with rooting this phone with drivers installed (LG website), debugging enabled, and MTP PC connection? Now some guy on a YouTube video says the sd card must be patitioned. Well, that I didn't do, as he is the first and only person to say that.

I really am trying to get around Android's disabling of tethering. Great difficulty.
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Old March 7th, 2014, 10:05 PM   #23 (permalink)
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Quote:
Originally Posted by newpersonhere View Post
I honestly believe that Richard Brandson and Google are spending big money to keep freelance developers at bay. I notice this Optimus F3 isn't the newest phone, so most of the info on the web goes back to mid last year and I have discovered formerly working to now be obsolete. Saferoot, motochopper, and framaroot, whether new or old, used with lg ls720 drivers or not, do not work today, 03/01/14. I even tried some Chinese root app. These don't work.

Yes, it could be me. I'm not perfect. I'm not entirely tech savvy, but following basic directions I can do. I've rooted in the past.

Can someone verify my conflicts with rooting this phone with drivers installed (LG website), debugging enabled, and MTP PC connection? Now some guy on a YouTube video says the sd card must be patitioned. Well, that I didn't do, as he is the first and only person to say that.

I really am trying to get around Android's disabling of tethering. Great difficulty.
I can confirm I'm having the same problem: saw the same thing about the SD card will try that this weekend.
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Old March 8th, 2014, 02:48 PM   #24 (permalink)
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Got it to work: only thing I did different was change to a different SD card
Now I have to figure out what I want to do with it now that it's rooted...
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Old March 13th, 2014, 09:08 AM   #25 (permalink)
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I just rooted with this method on my VM V6 firmware phone. Sorry but the VM forum doesn't seem to have any working roots listed besides this. motochopper didn't work. I hope it won't brick my phone like it did the other guy.
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Old March 16th, 2014, 07:09 PM   #26 (permalink)
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Default Success?

Quote:
Originally Posted by masterchief3k View Post
I just rooted with this method on my VM V6 firmware phone. Sorry but the VM forum doesn't seem to have any working roots listed besides this. motochopper didn't work. I hope it won't brick my phone like it did the other guy.
What has been the outcome? Bricked phone or not?
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Old March 16th, 2014, 08:16 PM   #27 (permalink)
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Im on vm v6 and just used this 3 hours ago and it works fine.
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Old March 17th, 2014, 08:11 PM   #28 (permalink)
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Depending on the firmware, either motochopper or saferoot works. I would go with saferoot though.

Quote:
Can someone verify my conflicts with rooting this phone with drivers installed (LG website), debugging enabled, and MTP PC connection? Now some guy on a YouTube video says the sd card must be patitioned. Well, that I didn't do, as he is the first and only person to say that.
The phone must be in usb charge mode, not any other mode and debugging enabled. Also, the sdcard has nothing to do with anything, you don't even have to have a sdcard in the phone to root it.
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Old March 19th, 2014, 04:44 PM   #29 (permalink)
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Problem: I rooted the phone (successfully) but then updated to the newer ROM -- version P65910b. After the update I got an error when trying to run SU saying the SU binary was no longer found. I've tried rooting the phone again, but when I run install.bat I get this:

Quote:
[*] Waiting for your phone to appear
error: protocol fault (status read)
error: more than one device and emulator
[*] Sending files to your device...
At that point the batch file hangs. Suggestions?
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Old March 23rd, 2014, 01:15 PM   #30 (permalink)
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Related to the above question, I have 1 phone rooted with the "a" software, one with "b". I've noticed some buggyness on "a" such as always receiving an open WiFi network notification despite me having disabled it.

What's the proper way to get the upgrade so I can get the new version and still re-root?

I'm coming from a Galaxy Nexus where everything was easy, so I'm not used to this.
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Old March 23rd, 2014, 02:35 PM   #31 (permalink)
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You can update either OTA or via USB with the LG Support Tool. OTA may fail if you're rooted, especially if you have removed any system apps. The support tool doesn't care AFAIK. I used the latter to do my update and it worked with no problem, I was rooted but hadn't removed any system apps although I did re-enable the ones I had frozen before doing the update just to avoid any issues.
If you do use the Support Tool just be sure you have the latest drivers on your PC before starting the update.
Re-rooting after updating to version c is no problem, but you have to use Saferoot as Motochopper will no longer work on the new firmware.
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Old March 24th, 2014, 10:13 AM   #32 (permalink)
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I've only frozen, not removed, so as to prevent update issues in the future. I used saferoot the first time around.

Update: Unfroze the few apps I'd frozen, ran the update, re-rooted using saferoot, re-froze apps again, and I'm back like I was in about 15 minutes. Very easy.

After what I put up with regarding battery life on my Nexus, I'm loving this phone.
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Old April 10th, 2014, 01:49 PM   #33 (permalink)
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Never mind
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Old April 22nd, 2014, 12:37 AM   #34 (permalink)
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I got bored

Goo.im Downloads - Downloading saferoot.apk
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Old April 29th, 2014, 08:13 AM   #35 (permalink)
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This method seems to work for my Sprint F3, as well. I had no problems with it on the v6 update, and then again after reflashing to the v5 update.
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Old May 4th, 2014, 04:04 PM   #36 (permalink)
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it says my phone isn't supported, and it fails to root, but with that being said there's a SuperSU app in my phone. When I open SuperSU it tell me that there's no su binary installed. here's my software information. Can anyone please help

Android version
4.1.2

baseband version
M8930B-AAAATAZM-3.2.25033

Kernel version
3.4.0

builder number
JZO54K

software version
Ms50012b
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Old May 4th, 2014, 04:52 PM   #37 (permalink)
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Quote:
Originally Posted by Dark Creation View Post
it says my phone isn't supported, and it fails to root, but with that being said there's a SuperSU app in my phone. When I open SuperSU it tell me that there's no su binary installed. here's my software information. Can anyone please help

Android version
4.1.2

baseband version
M8930B-AAAATAZM-3.2.25033

Kernel version
3.4.0

builder number
JZO54K

software version
Ms50012b
You're in the wrong forum, this is for the F3. Your software version shows that you have an F6 (MS50012b). Saferoot no longer works for the F6's latest software version. Head on over to the F6 forum for other means of rooting.
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Old June 5th, 2014, 10:20 AM   #38 (permalink)
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Default Root Fail on F3

Hi, I followed steps closely above about 9 times and still getting same fail.

Here are my details:
Android version
4.1.2

baseband version
M8930B-AAAATAZM-3.2.25033

Kernel version
3.4.0

builder number
JZO54K

software version
MS65910c


I run install.bat and during process, I say yes to Busybox, it detects my phone but when "sending files to your device..." it says "Unable to chmod /data/local/tmp/getroot: No such file or directory.

After "Starting rooting program", it reports
/system/bin/sh: /data/local/tmp/getroot: not found

rm failed for /data/local/tmp/getroot, No such file

Trying to disable Knox
/systems/bin/sh: /system/xbin/super: not found

Rebooting...
Waiting for device to re-appear...
(and then after my phone turns back on...)
Something has deleted su - looking for the backup copy
The backup is gone too - can't recover!

At this point, I'm asked to press a key and it closes.

Am I missing something? (Yes, have updated USB drivers, am in debugging mode; tried toggling between media and camera connection; am running as administrator etc.)

Thanks.
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Old June 5th, 2014, 11:33 AM   #39 (permalink)
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Kayh, try redownloading saferoot.zip and extracting it again. In the saferoot folder, look in "files" and make sure that the file "getroot" is there (as well as some other files). It seems as if that file was missing when you tried running install.bat, thus didn't get copied over and gave you those errors.
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Old June 5th, 2014, 08:25 PM   #40 (permalink)
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Quote:
Originally Posted by kentchristopher View Post
Kayh, try redownloading saferoot.zip and extracting it again. In the saferoot folder, look in "files" and make sure that the file "getroot" is there (as well as some other files). It seems as if that file was missing when you tried running install.bat, thus didn't get copied over and gave you those errors.

Chris, Missing files - doh! Thanks for that tip -- it did the trick. Flawless execution.

Best to you.
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Old June 16th, 2014, 04:51 PM   #41 (permalink)
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Hello to everyone! WHen i try this method. Saferoot says that my device is not supported. I also tried motochopper and it rebooted and installed SUPERSU but unfortunately it wont let me update the binaries. PLeas help!!

Android version
4.1.2

baseband version
M8930B-AAAATAZM-3.2.25033

Kernel version
3.4.0

builder number
JZO54K

software version
P659h10a-SSV-TLF
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Old July 20th, 2014, 03:05 PM   #42 (permalink)
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Default Rooting my Virgin Mobile Optimus f3

Tried rooting my Virgin f3 using saferoot but got the following message:

"Starting rooting program
ro.build.product=fx3
ro.build.id=JZ054K
Your kernel is patched!
This device not supported"


My phone info:

LG Optimus f3 (Virgin Mobile)

Android version: 4.1.2

Kernel version: 3.4.0

Build number: JZ054K

Software version: LS720ZV7

Would Motochopper work??
I'm new to rooting phones so any help would be appreciated.
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Old July 20th, 2014, 03:09 PM   #43 (permalink)
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You're in the T-Mobile / MetroPCS F3 forum. Of course it didn't work. Try the root method in the appropriate forum.
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Old July 20th, 2014, 03:27 PM   #44 (permalink)
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Quote:
Originally Posted by keltic1701 View Post
Tried rooting my Virgin f3 using saferoot but got the following message:

"Starting rooting program
ro.build.product=fx3
ro.build.id=JZ054K
Your kernel is patched!
This device not supported"


My phone info:

LG Optimus f3 (Virgin Mobile)

Android version: 4.1.2

Kernel version: 3.4.0

Build number: JZ054K

Software version: LS720ZV7

Would Motochopper work??
I'm new to rooting phones so any help would be appreciated.
Saferoot does not work with zv7 firmware. You need to use Towel Root apk now.
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Old July 20th, 2014, 03:48 PM   #45 (permalink)
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It seems that Motochopper doesn't work with zv7 either since I just tied it. I'll give Towel Root a go. Thanks!
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Old July 20th, 2014, 04:29 PM   #46 (permalink)
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Looks like Towelroot did the trick...or at least it didn't fail. Thanks again!
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Old July 20th, 2014, 04:55 PM   #47 (permalink)
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Quote:
Originally Posted by keltic1701 View Post
Looks like Towelroot did the trick...or at least it didn't fail. Thanks again!
Now you will need to install a superuser app and busybox installer app from the playstore and you will have fully rooted your f3
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Old August 5th, 2014, 06:58 PM   #48 (permalink)
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Default cannot root

hi everyone, i'm trying to root my optimus f3 from metropcs without any success, as soon as i hit any key to continue, the black screen just disappears, i tried all the options drivers installed, charging mode, mtp mode, run as administrator...etc, all failed, am i missing somethinf here?
any useful suggestion? thanks.
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Old August 6th, 2014, 09:38 AM   #49 (permalink)
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never mind i finally got it, the zip file was just corrupt, i had to delete and download it many times, phone connected in mtp mode, extract file and run it as administrator, that did the trick. hope that helps.
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Old August 7th, 2014, 08:43 AM   #50 (permalink)
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Default i have problem

I rooted my lg optimus f3 and by accident i reseted my phone and it doesnt want to work again
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