Database Develop

[GUIDE] Steps to root stocked Nexus One android without flashing(unlocked bootloader)

Disclaimer 1 : I tried to look for something like this but I did not found it. Then I tried to achieve it. Sorry if they are well known steps
This guide allows to root a Nexus One with unlocked bootloader with NO need to flash recovery
USE THAT INFORMATION AT YOUR RISK!!
Updated: Added a line to work with Gingerbread
That steps are for Ubuntu. If you are any interested windows user, please let me know.
Prerequisites:
Unlocked bootloader
adb working properly
1. Download fastboot
Code:
wget --referer=http://developer.htc.com/adp.html http://dl4.htc.com/RomCode/ADP/fastboot.zip
unzip fastboot.zip
chmod u+x fastboot
rm fastboot.zip
2. Obtain busybox (anyone have any direct link?) - NOT GOING TO FLASH CM, JUST GETTING busybox from a trusted place
Code:
wget http://download.cyanogenmod.com/get/update-cm-7.0.0-N1-signed.zip
unzip update-cm-7.0.0-N1-signed.zip system/xbin/busybox
rm update-cm-7.0.0-N1-signed.zip
3. Download su
-- UPDATE: that link broken, you have to donwload it from Google Play
Code:
wget http://dl.dropbox.com/u/6408470/su-releases/su-2.3.6.1-ef-signed.zip
unzip su-2.3.6.1-ef-signed.zip system/app/Superuser.apk system/bin/su
rm su-2.3.6.1-ef-signed.zip
4. Download recovery-RA - NOT GOING TO FLASH IT, DON'T WORRY!!!
Code:
wget -O recovery-RA-passion-v2.2.1.img http://files.androidspin.com/files/amon_ra/RECOVERY/recovery-RA-passion-v2.2.1.img
md5sum recovery-RA-passion-v2.2.1.img
echo ... Validate md5sum is 3def709ab1c9e051a92a1c8b1504a36a
5. Reboot to bootloader - JUST BOOTING WITH, NO FLASHING
Code:
adb devices
adb wait-for-device
adb reboot-bootloader
fastboot boot recovery-RA-passion-v2.2.1.img
echo ... Waiting for recovery image load
while [ -z `adb shell pwd 2> /dev/null` ]
do
sleep 1
done
6. Root it!
Code:
adb shell mount /system
adb push system/xbin/busybox /system/bin/busybox
adb shell chmod 4755 /system/bin/busybox
adb push system/bin/su /system/bin/su
adb shell chmod 4755 /system/bin/su
adb push system/app/Superuser.apk /system/app/Superuser.apk
adb shell chmod 4755 /system/app/Superuser.apk
7. Reboot and enjoy rooting
Code:
adb shell reboot

Will this work on stock Gingerbread?

If you are running Nexus One with Gingerbread, as I understand, it can work. I've not tried, you can try.... at your risk ;-)

Helleqn said:
Will this work on stock Gingerbread?
Click to expand...
Click to collapse
If you have an unlocked bootloader, yes, it will work. If you have an unlocked bootloader, you can install pretty much anything you want, whenever you want...
Sent from my Nexus One using XDA Premium App

Helleqn said:
Will this work on stock Gingerbread?
Click to expand...
Click to collapse
I've added a adb command (mount /system) to work with Gingerbread. It works on mine.

It also works on 2.3.4

Yep. Worked great for me. But with all due respect, it seemed a little fishy to me that your directions have users pull busybox from Cyanogenmod but then have them pull su and Superuser.apk from a random file on a Dropbox account especially since both files are available in the already trusted Cyanogenmod download that was used for busybox. And even more so because the Superuser.apk file using your instructions is a larger file than the one included with Cyanogenmod. So I only used the files from CM and it worked like a charm.
Not accusing you or anything. I'm just pointing that out.

The easier way is to do step 5, then flash the su zip from step 3, and you're pretty much done. You can install busybox through the Market app...

Don't worry for the link, I toke it from the original post for that su release:
http://forum.xda-developers.com/showthread.php?t=682828
I agree it's enough with CM but I intend to get the last version... may be it's not the best option...
Thanks for your comments.

[GT-P3XXX] busybox + install-script [+cyanogen edition][2012-08-15]

Hi folks,
here's an easy-to-install busybox for your Galaxy Tab 2. NOW with Cyanogen Mod support.
ChangeLog:
BusyBox 1.21.0-git Nano1 (2012-07-28): initial release
BusyBox 1.21.0-git Nano2 (2012-07-29): applied various patches:
BUGFIX: flush all open files after listing them (ls)
BUGFIX: when setting hostname from file p**** whole name
COMPAT: ps now accepts (= ignores) all options a POSIX ps should
allow passing -mthumb to make
ash applet now exports HOME
silently ignore processes from inittab with terminal names without matching device file
default behaviour of 'showkey' applet changed from displaying interpreted keycode to decimals
do not show a message when testing an uninitialized variable
changed some terms in top applet output (rss vs. vsz)
BusyBox 1.21.0-git Nano3 (2012-08-05): major fix
NEW: rfkill applet¹
several minor modifications to applet
BUGFIX fixed a bug in busyinstall that left system without 'sh' upon uninstall²
provide busybox-patches to the world
BusyBox 1.21.0-git Nano4 (2012-08-15): minor fix / cm 10 edition
updated to latest git (some bugfixes)
BUGFIX: reading profile now works
BUGFIX: adjusted shell paths
BUGFIX: history now works
BUGFIX: no longer replace reboot on stock rom³
NEW: Cyanogen Mod edition (tested on cm10)
¹ Either redo 'busyinstall install', or do 'ln -sf /system/bin/busybox /system/bin/rfkill'
² You can find the original sh in you CWM backup, or here: http://www.nanolx.org/downloads/P3110/original-sh
If you didn't get /system/bin/sh.orig after 'busyinstall install', use this file as /system/bin/sh.orig
³ push new busyinstall into tablet to ensure future install/uninstall is fine. then do 'mv /system/bin/reboot.orig /system/bin/reboot'
from within 'adb shell' as root to get original reboot back.
Prerequisites:
* root access on your Tablet
Download:
busybox (normal): http://www.nanolx.org/downloads/P3110/busybox-nano4
busybox (debug): http://www.nanolx.org/downloads/P3110/busybox_unstripped-nano4
busyinstall (installer/stock): http://www.nanolx.org/downloads/P3110/busyinstall
busyinstall (installer/cm10): http://www.nanolx.org/downloads/P3110/busyinstall-cm
profile (optional): http://www.nanolx.org/downloads/P3110/profile¹
busybox (patches): http://www.nanolx.org/downloads/index.php?dir=P3110/busybox-patches/
¹ profile is a generic file, read on each startup of busybox. Mine sets HOME to /,
and puts /system/xbin/ in front of /system/bin/ in PATH. You can also adjust the
prompt (PS1) or whatever here, it's valid for all users. You could check for
'$(id -u) == 0' to adjust prompt for root, if not 0, for ordinary user.
Ordinary user should get 'busybox (normal)', rather than 'busybox (debug)'.
NEW INSTALLATION (STOCK ROM):
Putting busybox on internal sd-storage:
Code:
adb push busybox /mnt/extSdCard/
adb push busyinstall /mnt/extSdCard/
replace "extSdCard" if you saved busybox somewhere else
Code:
adb shell
su
chmod 0777 /mnt/extSdCard/busybox
chmod 0777 /mnt/extSdCard/busyinstall
/mnt/extSdCard/busybox remount -o rw,remount /system
/mnt/extSdCard/busybox mv -f /mnt/extSdCard/busybox /system/bin/
/system/bin/busybox mv -f /mnt/extSdCard/busyinstall /system/bin
busyinstall install
NEW INSTALLATION (CYANOGEN ROM):
Putting busybox on device:
in Settings > Development > set 'root access' to 'apps + adb'
Code:
adb root
adb shell
busybox mount -o rw,remount /system
exit
adb push busybox /system/xbin/busybox.nano
adb push busyinstall /system/bin/busyinstall
adb push profile /system/etc/profile # optional, if downloaded profile
adb shell
chmod 0777 /system/bin/busyinstall
busyinstall install
UPDATE:
Just download busybox, busyinstall and replace the ones in /system/bin/ - it will instantly work:
Code:
adb push busybox /system/bin/
adb push busyinstall /system/bin/
adb shell
su
toolbox chmod 0777 /system/bin/busybox # if you use windows, the executable bit might be missing in the uploaded file
chmod 0777 /system/bin/busyinstall
UNINSTALLATION:
Code:
ab shell
su
busyinstall --
That's it!
I tested everything and it does work perfect, either way a backup (CWM) is always recommened, when working around with stuff down the stack.
Suggestions welcome.

Out of curiosity, what is the difference between what this does and what BusyBox (by Stericson) from the Play Store does?
Sent from my MB855 using Tapatalk 2

Jleeblanch said:
Out of curiosity, what is the difference between what this does and what BusyBox (by Stericson) from the Play Store does?
Sent from my MB855 using Tapatalk 2
Click to expand...
Click to collapse
mine is a newer version
has all features of busybox (stericsons free version does not have all applets in busybox enabled, eg. 'sh' applet is missing)
installation 100% GT-P3XXX optimized
As of now, mostly personal preference I'd say.
Edit: But I'm currently applying stuff from busybox-power (maemo) which adds serveral bugfixes and stuff to busybox.

OK, improved version of busybox available in post 1 (+ changelog)

OK, thanks for letting me know!
I actually haven't done much with my Tablet lately as I've been busy with my phone as that now has CM10 too
But once I get my phone all set I'll use your BusyBox and give it a go!
Also, you said your busybox version is newer...but busybox via my phone is version 1.20.2. Just letting you know!
Thanks for this btw, I'd rather have a modified version optimized for my tablet versus a more universal version so to speak. Plus, with your updated applets! Thanks!
Sent from my MB855 using Tapatalk 2

Jleeblanch said:
Also, you said your busybox version is newer...but busybox via my phone is version 1.20.2. Just letting you know!
Sent from my MB855 using Tapatalk 2
Click to expand...
Click to collapse
Oh, ... mine is 1.21.0-git - fixed the typo

First,thank you for your work,second I've a question: I've an p3100 (wifi+gsm) ,it rooted on stock 4.0.4 ,and no busybox installed.It has 16gb onboard ,and I don't have at the moment any external microsd in slot,I've ordered an 32gb,but it hasn't come yet.Can you please tell me if it's safe puting your files in /sdcad (not ExtSdCard like you wrote) and give the commands using ''sdcard'' word ?
For e.g:
db shell
su
/mnt/sdcard/busybox remount -o rw,remount /system
I need busybox to backup my /efs folder ,but I don't want to screw something,so please tell me if it is safe to use internal memory (sdcard) for busybox install?Also ,when I'll receive the microsd ,I will need to install again busybox with your original commands from this topic ?
Thanks a lot!!
Best Regards!

viasat said:
First,thank you for your work,second I've a question: I've an p3100 (wifi+gsm) ,it rooted on stock 4.0.4 ,and no busybox installed.It has 16gb onboard ,and I don't have at the moment any external microsd in slot,I've ordered an 32gb,but it hasn't come yet.Can you please tell me if it's safe puting your files in /sdcad (not ExtSdCard like you wrote) and give the commands using ''sdcard'' word ?
For e.g:
db shell
su
/mnt/sdcard/busybox remount -o rw,remount /system
I need busybox to backup my /efs folder ,but I don't want to screw something,so please tell me if it is safe to use internal memory (sdcard) for busybox install?Also ,when I'll receive the microsd ,I will need to install again busybox with your original commands from this topic ?
Thanks a lot!!
Best Regards!
Click to expand...
Click to collapse
Of course you can. It does not matter where you put busybox. All that matters is, that you adjust the commands to your path.
In your you would push the files using ADB, like
Code:
adb push busybox /mnt/sdcard
adb push busyinstall /mnt/sdcard
also you don't need to re-do this when you got your sd-card, because during the steps you move busybox/busyinstall into /system/bin/.
Edit: updated instructions to clarify this.

Ok,thank you for your time,everything it's clear now.I'll try later,when I'm going home.
Cheers!
---------- Post added at 07:04 PM ---------- Previous post was at 06:11 PM ----------
OK,first problem:when I try to execute the first comand,it gives me ''permission denied'',so after a little reading,because my kernel it's stock,I've installed Chainfire's ''adbd Insecure v1.0 '' http://forum.xda-developers.com/showthread.php?t=1687590 to give me rights.After that I've no more errors,but,when I execute first command in adb,it says nothing,just hanging,and adb doesn't come back to # symbol ,and because of that I can't execute the next command.Any ideea what I'm doing wrong?Thanks!

What command failed?
Gesendet von meinem GT-P3110 mit Tapatalk 2

I don't know how to explain,it not really failed, but when I type
/mnt/sdcard/busybox remount -o rw,remount /system the adb doesn't return anything back,and doesn't come back to # symbol ,it just staying,nothing more,no response.I was waiting 2 minutes,and nothing ,doesn't return to # .I can type the next command
/mnt/sdcard/busybox mv /mnt/sdcard/busybox /mnt/sdcard/busyinstall /system/bin/
it's the same,no output,nothing.
Can you please tell me what I'm doing wrong?
Thanks again!
Now I'm stuck,even with adbd insecure activate I cannot execute commands:
C:\Documents and Settings\X\Desktop\ADB>adb shell
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
[email protected]:/ # /mnt/sdcard/busybox remount -o rw,remount /system
/mnt/sdcard/busybox remount -o rw,remount /system
/system/bin/sh: /mnt/sdcard/busybox: cannot execute - Permission denied
126|[email protected]:/ # /mnt/sdcard/busybox mv /mnt/sdcard/busybox /mnt/sdcard/busy
install /system/bin/
dcard/busybox /mnt/sdcard/busyinstall /system/bin/ <
/system/bin/sh: /mnt/sdcard/busybox: cannot execute - Permission denied
126|[email protected]:/ #
Maybe I need first to install Stericsson's busybox from Market?At the moment,as I said before I don't have busybox installed at all,only su.
One more thing,every time when I save from your link busyinstall,no matter what browser,the file is saved as busyinstall.txt
It is normal ,or I need to rename it?
Thanks a lot!

Hmm... seems I forgot a little thing.
do this after you put busybox on tablet, before anything else:
Code:
adb shell
su
chmod 0777 /mnt/sdcard/busybox
then follow the rest of the instructions.
/goingtofixfirstpost

Same story,take a look:
[email protected]:/ # chmod 0777 /mnt/sdcard/busybox
chmod 0777 /mnt/sdcard/busybox
[email protected]:/ # chmod 0777 /mnt/sdcard/busyinstall
chmod 0777 /mnt/sdcard/busyinstall
[email protected]:/ # /mnt/sdcard/busybox remount -o rw,remount /system
/mnt/sdcard/busybox remount -o rw,remount /system
/system/bin/sh: /mnt/sdcard/busybox: cannot execute - Permission denied
126|[email protected]:/ #

Hmmm... > could you provide me the details of 'adb logcat'? Ensure to run those commands while logging.
Gesendet von meinem GT-P3110 mit Tapatalk 2

I don't know if this is what you want,but here we go:

I'm going to check your logs soon and report back.
Meanwhile I updated to Nano3 - see first post.

I got no clue why it does not work for you, but me.
What boot image and ROM are you using? Default boot/ROM, rooted boot/ROM, cyanogen?
I only tested default ROM with my boot. Currently testing cyanogenmod 10, but except some adjustments to busyinstall it will work there, too.

Sorry for the late reply,I'm on vacation until Sunday,and my acces to internet it's very limited here.Now,regarding my problem,first when I got the tablet it was on stock 4.0.3 ,wich I rooted manually to keep the counter to 0 (for warranity) ,and after that I updated to stock 4.0.4 using Mobile Odin Pro,with Everoot option ( it's rooting the rom on the fly) .So now I'm rooted on stock 4.0.4 ,stock recovery, and no busybox installed.I fell more secure and want to install your busybox version,because it's specialy designed for tab2,and it's has features from Maemo (I'm a big fan,I owned an N800,and I've also an N900 ).Maybe,if you have the time and the skills,you can pack it on an .apk version,if it's possible,of course.I will try more Sunday,when I'll be back home.Thanks again for your patience and help.Best Regards!

It will be great if we have a kernel (even stock) with CWM and this busybox...
I am also rooted with flash counter 0 and stock recovery.
Sent from my GT-P3110 using Tapatalk 2

Maybe some contributor creates a flashable zip (for CWM).
So... uploaded 1.20.1-Nano4. See first post for changes.
This time an addtional install-script for cyanogen mod was added, along some fixes.
ah... and: 100th post

[tutorial] install bash command line on your android

it is not tested on galaxy mini so I will say it beta, please its a request to post a reply whether it is working or not
bash:- an advanced command line than sh, it is colorful so you can differentiate the commands easily
steps for installing bash if you have cwm and want automated process
1:- download the bash command line flashable zip from here
2. download bash enabler script from here
3. flash the bash command line dhlalit11.zip in cwm recovery
4. boot the device normally
5. with the help of script manager execute the bash install.sh script with su privilege
and you are done
Click to expand...
Click to collapse
steps for installing bash if you don't have cwm or want to do it manually
1:- download the bash command line flashable zip from here
2. extract the files to a folder
3. go to /extracted folder/system
4. copy all the files to your system as they are placed
5. open terminal and type chmod 0755 /system/xbin/bash
and its done
Click to expand...
Click to collapse
note:- running bash will not give you root privilege automatically, you will need to type "su -c bash" to go directly into bash with root

reserved

if you don't mind...you can add this line into your updater script
Code:
set_perm(0, 0, 0755, "/system/blabla-the file position");
this one will automatically change the file permission for you so that we don't have to run the script anymore. you can also add symlink("/system/bin/bash", "/system/bin/sh"); to replace our old sh with bash so that everytime we use sh command, we will run bash instead. I was using these trick on my old ROM. however, this step will erase our sh binary file. so we must use it carefully. I usually did these step on a fresh rom installation. you might want to test it by yourself to make sure everything is alright.

I like to make scripts and one more reason is the script first looks for bash in /system/xbin to ensure a proper flash, if bash is not found it will tell the owner
didn't wanted to replace sh

if the purpose is to check whether it was installed correctly or not you can use run_program command instead and make the installation a lot simpler. you can put the script temporary in cache and delete it after the installation complete. or else...you can play with aroma installer. you can design the UI with several option like
1. install bash
2. symlink bash to sh
3. check the bash installation status
4. etc etc (as you like)
aroma could make our usual installation stuff into sumething more fun and interactive ^,^v
anyway, this is only a suggestion. if you want to use aroma you can modify my multi tweak installer. you said that you like to make scripts. it will be easy for you to get the basic stuff on aroma and starting to made one for your self. the link is in my sig. check the akuro or one pack tweak thread and got the aroma from the latest version there.

script run in cwm do not print anything on the UI and the user will not see whether the it was done or not
and I had previously used aroma in my rom patch for galaxy s series but this is just a simple task to do
I will think about it, but sure it will take time and I don't have time as I wanted to update the sticky of this forum then I am working on two mods for my karbonn smart tab 1
but I will for sure figure it out

installing bash
hi i have a Galaxy Centura tracphone and i get this error after executing su-c bash into the cmd via adb......I have installed the flashable zip and ran the installer script....
255|[email protected]:/system/bin # su -c bash
su -c bash
link_image[1936]: 7974 could not load needed library 'libncurses.so' for 'bash
(load_library[1091]: Library 'libncurses.so' not found)CANNOT LINK EXECUTABLE
255|[email protected]:/system/bin #
any ideas?

Bash
Hi, I managed to install the ZIP file (Moto G XT1032) and the script worked as well but after it was done, bash didn't have 755.
I tried adding it manually (as root) but it fails with this error:
Unable to chmod /system/xbin/bash: read-only filesystem
I tried remount using this:
su mount -o remount,rw /
But still no luck, any suggestions?
---------------------------------------------------- UPDATE -------------------------------------------------------
managed to get it via ADB Shell with this commands:
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
chmod 755 /system/xbin/bash
still not working because of not having "libncurses.so" which will try to install manually.

ThePlayer10 said:
Hi, I managed to install the ZIP file (Moto G XT1032) and the script worked as well but after it was done, bash didn't have 755.
I tried adding it manually (as root) but it fails with this error:
Unable to chmod /system/xbin/bash: read-only filesystem
I tried remount using this:
su mount -o remount,rw /
But still no luck, any suggestions?
---------------------------------------------------- UPDATE -------------------------------------------------------
managed to get it via ADB Shell with this commands:
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
chmod 755 /system/xbin/bash
still not working because of not having "libncurses.so" which will try to install manually.
Click to expand...
Click to collapse
You didn't needed to type whole dev block address, what you were missing was
(su
mount -o remount,re /system)
You were actually mountung the root of your device instead of system partition, which was the reason of non-working

Rooting/unlocking Nexus One with broken power button using Linux terminal tools

I am attempting to get Cyanogenmod onto my Nexus One, but am running into far more problems than expected. The information on rooting Android devices seems heavily fragmented across the web and the tools unreliable. At least in my case, SuperOneClick has proven a complete misnomer. So I'd like to go back to basics - executing as many of the commands as possible from a Linux terminal to get the phone rooted/unlocked/whatever else has to happen to get Cyanogenmod installed. The two constraints I'm working with here are as follows:
1. The device is running Android 2.2.1 (I downgraded from 2.3.x using the PASSIMG method).
2. The power button on the device is broken, so any method which requires pressing/holding it is ruled out.
The problem I am having is that even after following Linux-centric guides, I get to the point of installing the SuperUser app followed by the ROM Manager app, but I'm never prompted to give ROM Manager superuser permissions and so can't flash the ClockworkMod recovery.
Below I describe the steps I've been taking so far, based on the "How To Root Nexus One Running Android 2.2.1 From Ubuntu Linux" guide (Google it, I can't post hyperlinks).
- Download/extract/move Nexus One Softroot files to same directory as adb
- From adb directory, execute the following commands:
sudo ./adb push psneuter /data/local/tmp/psneuter
sudo ./adb push busybox /data/local/tmp/busybox
sudo ./adb push su /data/local/tmp/su
sudo ./adb shell chmod 755 /data/local/tmp/psneuter
sudo ./adb shell chmod 755 /data/local/tmp/busybox
sudo ./adb shell chmod 755 /data/local/tmp/su
sudo ./adb shell cd /data/local/tmp ./psneuter
sudo ./adb shell
After executing sudo ./adb shell as above, I get the # prompt, which is purported to indicate that rooting was successful.
- Still following the guide, I then execute the commands which purportedly make root permanent:
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
cd /data/local/tmp
./busybox cp busybox /system/bin
chmod 4755 /system/bin/busybox
busybox cp su /system/bin
chmod 4755 /system/bin/su
exit
exit
- Again, still following the guide, I execute the commands which purportedly set the /system partition back to read-only:
sudo ./adb shell
su
mount -o remount,ro -t yaffs2 /dev/block/mtdblock3 /system
exit
exit
- Now, I download the SuperUser app from the Android Market and open it to make sure it's running.
- Next, I download the ROM Manager app from Google Play (looks like it pulled a sneaky and upgraded from Android Market to Google Play here).
- I run ROM Manager and choose Flash ClockworkMod Recovery. I'm prompted to confirm the phone is a Google Nexus One and then ROM Manager runs for about 30 seconds (yellow program bar goes all the way) before spitting out An error occurred while attempting to run privileged commands!. And this is the point I am stuck at.
I should note that at no point am I prompted by the SuperUser app to give the ROM Manager app super user permissions. I don't restart the phone or do anything else throughout all of the steps I've described above, so I can't see any reason for root to have been lost at any point. In fact, if I execute the command sudo ./adb shell after all this, I still get the # prompt indicating root. And when I execute id afterwards, I get uid=0(root) gid=0(root) -- further confirmation of root. I really am stuck on this one. I've spent a lot of time digging through forum posts and online articles, but the signal to noise ratio is poor and I haven't been able to find anything that actually works. Can someone suggest where I am going wrong?

Programs might expect su to be in /system/xbin rather than /system/bin, which is probably your case.
Also, use SuperSU instead of Superuser.
Also, make sure the su you're using is matching the relevant control program - which means, downloading Superuser from the Play Store won't help, if it can't work with the binary you have. So download a complete ZIP from XDA with SuperSU.apk and su binary, and use those. The last version I used was 0.89 and it was on XDA just like I described above.

interesting problem with ez fix, get new phone. n1's are $100 on ebay, thats how i got mine.

[guide]rooting lg leon!

** DISCLAIMER: I AM NOT A DEVELOPER. I DO THIS AS A HOBBY AND SHARE MY FINDINGS IN CASE SOMEONE ELSE FINDS THEM USEFUL. **
** THIS WORKED ON MY DEVICE BUT IT MAY NOT WORK ON YOURS. APPLY AT YOUR OWN RISK **
This has been tested with the LG LEON V10c-EUR-XX
This procedure removes Kingroot , installs superSU ,root binaries and busybox on your system.
Rootable Versions: V10a , V10b , V10c , V10g
Non-root Versions: , V10e
I'm not sure yet about V10d , in some people is working and some not. I think if you use latest kingroot version will work.
Non tested: V10f
If you want to downgrade follow this GUIDE!
Requirements
Make sure your PC can communicate with our LG Leon via adb.
Driver Pack for LG Leon ( Link can be found on #2 Post!)
The success of this method depends on following the procedure very carefully. So read the instructions and make sure you understand every step before you try it.
Procedure
1- Install and run Kingroot 4.0. You can google and download it or you can use the one in the attached zip file. When Kingroot runs it is all in Chinese, but basically you need to be connected to the internet for it to work. It will do its thing and show progress up to 100% after which you can exit the program. Now your phone is rooted. The following steps replaces the Kinguser with SuperSU.
2- Unzip the attached file in your adb directory and then open an adb terminal and make sure the PC can see your phone (you can check that by typing adb devices). Then type the following:
Code:
adb push su /data/local/tmp
adb push busybox /data/local/tmp
adb shell
3- In the shell that you get type the following and make sure you give the permission when the phone prompts you:
Code:
su
4- Continue by typing the following commands:
Code:
mount -o remount,rw /system
cat /data/local/tmp/su >/system/xbin/daemonsu && chmod 0755 /system/xbin/daemonsu
cat /data/local/tmp/busybox >/system/xbin/busybox && chmod 0755 /system/xbin/busybox
daemonsu -d &
The key is to keep this session running while you continue with the rest, so be careful with typos and monitor this window for any errors.
5- At this point, leave the adb terminal window running and go to your phone, open the Kinguser app, open settings (the wheel at the top right corner of the screen), Root authorization setting, and Remove Root permission. The app will self-uninstall.
6- Uninstall the other two Kingroot programs that are still on your phone (KingRoot and the other one with the blue icon and Chinese text under it).
7- Back to the adb terminal, and type the following:
Code:
cat /data/local/tmp/su >/system/xbin/su && chmod 0755 /system/xbin/su
busybox chattr -ia /system/xbin/ku.sud
busybox chattr -ia /system/xbin/supolicy
rm /system/xbin/ku.sud
rm /system/xbin/supolicy
rm /system/bin/rt.sh
rm /system/bin/install-recovery.sh
rm /system/bin/shipclean
rm /system/bin/start-ssh
busybox chattr -ia /system/etc/install-recovery.sh
busybox chattr -ia /system/etc/install-recovery.sh-ku.bak
rm /system/etc/install-recovery.sh
rm /system/etc/install-recovery.sh-ku.bak
rm /system/etc/install_recovery.sh
rm /system/usr/icu/icusuflag.conf
busybox chattr -ia /system/usr/iku/isu
rm -rf /system/usr/iku
rm /system/kroot_*
rm /sdcard/kr-stock-conf
rm -rf /sdcard/Kingroot
rm -rf /data/data-lib/com.kingroot.RushRoot
rm -rf /data/data-lib/com.kingroot.kinguser
rm -rf /data/data-lib/king
Again, leave the adb terminal window running and go to your phone.
8- Install superSU (from the attached file) on your phone, run it, and let it update the SU binary.
9- Reboot the phone. After about 5 minutes your root is ready.
Downloads + Troubleshooting stuff will be in the 2nd post!

Troubleshooting & Downloading
Troubleshooting
1- Most of the problems that I noticed people have encountered is due to not reading the instructions fully. So make sure you read the OP word by word.
2- If you miss a step or mess up something go back to installing Kingroot and start over from the beginning.
3- Finally, I noticed that with an AT&T sim card in the phone Kingroot fails (why am I not surprised?) Either a reboot occurs in the middle of rooting or it completes the cycle without accomplishing root. If that occurs, my best advice is to change your phone company. If that fails, you may need to factory reset your phone or even install the firmware from scratch and try again without the sim card.
Downloading
MediaFire
Mega (Complete pack)
Drivers
Please do not mirror my links ,I'm counting em!
Hit the thanks button if i help you If you have a question feel free to post it. If you want to say "thank you" you can press the button , isn't worth to reply it
EDIT: If someone test it in another device or V10b etc.. , leave a feedback at comments so i could add it!

Two questions:
1: Are you terryg4 from androidforums? http://androidforums.com/threads/root-rooting-lg-leon-v10c-eur-xx-change-kingroot.946345/
2: Which kingroot 4.0 you talking about? Any minor version?

Plus, here is a fail from v10c..
Please don't copy-paste non-working solutions.

xfce4 said:
Two questions:
1: Are you terryg4 from androidforums? http://androidforums.com/threads/root-rooting-lg-leon-v10c-eur-xx-change-kingroot.946345/
2: Which kingroot 4.0 you talking about? Any minor version?
Click to expand...
Click to collapse
Two answers
1. Yes i'm that guy at androidforums
2. if link is broken i will replace it! I use this version of kingroot and it works for me! Read instructions again!

xfce4 said:
Plus, here is a fail from v10c..
Please don't copy-paste non-working solutions.
Click to expand...
Click to collapse
It's impossible! Send me pics of your android firmware! Maybe you have to downgrade

bkpaokfc said:
It's impossible! Send me pics of your android firmware! Maybe you have to downgrade
Click to expand...
Click to collapse
Here you go then..

Also using your exact version gave me the same response, only Chinese this time.

xfce4 said:
Also using your exact version gave me the same response, only Chinese this time.
Click to expand...
Click to collapse
I don't know nothing about your version. It should work but still don't know why. Anyway if your country have more Firmwares try downgrading.
If still doesn't work use this http://forum.xda-developers.com/lg-g3/general/guide-root-method-lg-devices-t3129197 maybe it will solve your problem.