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Old September 29th, 2012, 07:10 PM   #1 (permalink)
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Default [ROOT] LG Intuition & LG Spectrum ICS

Source: [Exclusive] Here's How To Root The LG Intuition And LG Spectrum On ICS

If you find this useful please follow me (jcase) on twitter ( https://twitter.com/teamandirc/ ).

Here you go, root for both the new LG Intuition and the LG Spectrum running ICS. The vulnerability is a simple permission bug allowing us to setup a symlink to local.prop (yes yet again). While the bug is the same, the procedure is slightly different, so I will have the instructions separate.

With the LG Intuition, they did seem to attempt to mitigate this attack. Not by setting correct permissions, but by dropping adbD to the shell user if it runs as root, even if ro.kernel.qemu=1 is set. They failed, they give us enough time to run one command before dropping the root privileges, in our case a script to root the phone.

LG Spectrum ICS Root (for the leaked ICS rom):
Expect this to be patched in the release rom. Leaked ICS rom has locked bootlaoders, ie no recovery at this point.

Files needed:
su ( http://dl.dropbox.com/u/8699733/lgroot/su )

adb shell

$ rm /data/vpnch/vpnc_starter_lock
$ ln -s /data/local.prop /data/vpnch/vpnc_starter_lock
$ exit

adb reboot

adb wait-for-device shell

$ echo 'ro.kernel.qemu=1' > /data/local.prop
$ exit

adb reboot

adb wait-for-device remount
adb push su /system/xbin/su
adb shell

# chown 0.0 /system/xbin/su
# chmod 06755 /system/xbin/su
# rm /data/local.prop
# rm /data/vpnch/vpnc_starter_lock
# reboot

Once rebooted, install Superuser from the market and enjoy.


LG Intuition Root

Files needed:
su ( http://dl.dropbox.com/u/8699733/lgroot/su )
lgroot.sh ( http://dl.dropbox.com/u/8699733/lgroot/lgroot.sh )

adb push su /data/local/tmp/su
adb push lgroot.sh /data/local/tmp/lgroot.sh

adb shell

$ chmod 777 /data/local/tmp/lgroot.sh
$ rm /data/vpnch/vpnc_starter_lock
$ ln -s /data/local.prop /data/vpnch/vpnc_starter_lock
$ exit

adb reboot

You may have to unplug/replug your phone to get some computers to pick it up again after this reboot.

adb wait-for-device shell

$ echo 'ro.kernel.qemu=1' > /data/local.prop
$ exit

Here is the important part, you will have to execute the next to commands one after the other. We want the second command to be fired off as soon as adbD comes up, before it drops root privileges. This may take some a few minutes, and after the second command is complete you may have to unplug/replug you phone to get your computer to see it again.

adb reboot
adb wait-for-device /data/local/tmp/lgroot.sh

(Here is where you may have to unplug/replug, but only after the second command has ran).

adb wait-for-device shell


$ su
# rm /data/local.prop
# rm /data/vpnch/vpnc_starter_lock
# reboot

Once rebooted, install Superuser from the market and enjoy.

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Old September 30th, 2012, 10:45 PM   #2 (permalink)
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After I run the command adb wait-for-device /data/local/tmp/lgroot.sh it does its thing for a second and looks like it worked. Then I type adb wait-for-device shell and instead of the $ with a cursor I get a line that reads (root@android;/ #) with a cursor and I can't run the su command. I've gotten stuck at this point and hard rebooted my phone several times with identical results. No matter what I try I get this. It looks like it has root access but it won't write the SU binaries to the phone. What should I do from here?
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Old October 1st, 2012, 12:37 AM   #3 (permalink)
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Quote:
Originally Posted by castorpollux View Post
After I run the command adb wait-for-device /data/local/tmp/lgroot.sh it does its thing for a second and looks like it worked. Then I type adb wait-for-device shell and instead of the $ with a cursor I get a line that reads (root@android;/ #) with a cursor and I can't run the su command. I've gotten stuck at this point and hard rebooted my phone several times with identical results. No matter what I try I get this. It looks like it has root access but it won't write the SU binaries to the phone. What should I do from here?
If that is the case, then you have the firmware I haven't gotten a chance to look at yet it seems.

Run the script manually while at the # by /data/local/tmp/lgroot.sh

then continue
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Old October 1st, 2012, 02:37 AM   #4 (permalink)
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Two things. 1) I love you. 2)You're a ****ing genius. Thank you very much, it worked like a charm. I have a rooted, overclocked, themed, busyboxed, and incredibly huge phone.
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Old October 1st, 2012, 02:40 AM   #5 (permalink)
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P.S. Since you haven't had a chance to look at this firm-a-ware, I can confirm that it doesn't hang at either of the two spots where the tutorial says it may need an unplug/replug. It just goes like butter until the second time it needs that script. Again, thanks a million.
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Old October 2nd, 2012, 02:43 PM   #6 (permalink)
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Quote:
Originally Posted by castorpollux View Post
Two things. 1) I love you. 2)You're a ****ing genius. Thank you very much, it worked like a charm. I have a rooted, overclocked, themed, busyboxed, and incredibly huge phone.
how many overclocked? did u try to install cmw?
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Old October 4th, 2012, 11:25 AM   #7 (permalink)
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just wanted to double check to make sure the su file and lgroot file need to go in the sdk


also thank you for getting this done was going to have dan look at the inuition but got swamped at work thanks for getting this done
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Old October 4th, 2012, 01:34 PM   #8 (permalink)
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getting an issue with

echo 'ro.kernel.qemu=1' > /data/local.prop


saying permission denied, and just curious if anyone is having as much of an issue with this as I am. I always seem to have bad luck with adb
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Old October 14th, 2012, 09:33 PM   #9 (permalink)
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I really want to try this out, but I dont understand ADB basics like trying to open the command screen.LOL
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Old October 19th, 2012, 07:44 PM   #10 (permalink)
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For those of you having issues using adb here is a quick tutorial on how use it properly. I had the biggest issue of not doing the correct pathing ( I think that is what it is called). What Is ADB And How To Install It With Android SDK
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Old March 12th, 2013, 05:11 PM   #11 (permalink)
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Still works even after the update.
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Old April 17th, 2013, 10:09 PM   #12 (permalink)
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Thumbs up

FWIW:
Not sure which update almyz125 refers to, but I just got the phone activated this past weekend (eBay, $196, top condition - no contract renewal or loss of unlimited data plan - WOOT), but I got several updates pushed in succession, and latest software version shows as VS95011B.

I had a heck of a time getting this to work at first because the repeated instructions here leave out a key word:

"Here is the important part, you will have to execute the next to commands one after the other. We want the second command to be fired off as soon as adbD comes up, before it drops root privileges. This may take some a few minutes, and after the second command is complete you may have to unplug/replug you phone to get your computer to see it again.

adb reboot
adb wait-for-device /data/local/tmp/lgroot.sh "

That 2nd line needs to be:
adb wait-for-device shell /data/local/tmp/lgroot.sh

Better yet, I strung the 2 commands together with logical and ("&&") to take care of timings:

adb reboot && adb wait-for-device shell /data/local/tmp/lgroot.sh

The "&&" keeps the 2nd command from running until the 1st completes, and only if it succeeds. Old shell scripting technique.

HTH

P.S. Anyone else having issue with the Intuition home screens not rotating to landscape mode even though the individual apps do it just fine when opened? Very annoying with Gmail and calendar widgets that have text - reading them sideways is not fun.
TIA
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Old April 19th, 2013, 06:05 AM   #13 (permalink)
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I can verify that this rooting method works with the Intuition after the latest OTA, 11B. Rokky's instructions are critical. You have to add the word "shell" to the line and the && trick is totally the bomb.

I've only ever done one-click rooting, but that isn't an option after the update. Bin4ry's script (2.7) won't work. The method in this thread, however, does.

Anyone who, like me, is intimidated by executing commands in shell should know: it is scary. I used the Windows version of adb because I am still adapting to the Ubuntu world of package installation. However, inside the shell, there's the familiar $ and # prompts. On the other hand, don't worry. If you mess up, you won't brick your phone. The root will simply fail and your phone will still work just fine. You can try again. Trust me. I messed up the first two times, but went back and redid each step + Rokky's tip at the very end. It is easier if you cut and paste the first post (thank you!) into a text editor and then cut and past Rokky's into the proper location, pasting over the code with the missing word.

If you do that you will have clear directions and everything will be right as rain.

Once you root, download Supersuser and select the option of preserving root from OTA. This option does the same thing as Root Protector.

If anyone needs help, I can post the directions that cobbled together on adb installation, the script listed here, and the critical modifications made by Rokky.

The Intuition is not the most popular of phablets, but if you are on a budget and need the bigger screen because you can't read the tiny type or are sick of having to scroll back and forth, then the LG Intuition works well. Rooting it will allow you to freeze programs (using Titanium Backup) and dump bloatware.

So the moral of the story is: It's okay to be scared, but you can root this phone using these directions and it is totally worth it.

R
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Old June 19th, 2013, 10:54 AM   #14 (permalink)
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captc2002-

I'm going to try this when I get home from work tonight. I had my Intuition rooted shortly after I got it in November last year. Then the OTA broke my root. I wish I would have know about the Superuser option, so thanks for that, too! It would help me a lot if you could post your modified code with the additions from Rokky (nice work!). I only wish this phone was more popular and had more developer support. It really is a BEAST for the price.

(UPDATE)
It worked! I had a heck of a time getting ADB to recognize it as a device. Took me an hour to figure out that I turned off USB Debugging when I wasn't rooted any more! Thanks guys!
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Old July 14th, 2013, 04:07 PM   #15 (permalink)
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Quote:
Originally Posted by jcase View Post
If that is the case, then you have the firmware I haven't gotten a chance to look at yet it seems.

Run the script manually while at the # by /data/local/tmp/lgroot.sh

then continue
I have this same problem but don't know where to insert the above script? Anything I enter just drops down with the # sign again. I am so close with this just cant get superuser binaries to phone.
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Old July 14th, 2013, 04:10 PM   #16 (permalink)
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Castorpollux,

What did you do to resolve this? I know it's been a while, but if you can remember I would appreciate the help.
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Old August 31st, 2013, 01:27 AM   #17 (permalink)
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he is saying just run that command from the root prompt, which is indicated by the # symbol, as opposed to the $ symbol which is not root, but is user prompt. So if you have a root prompt, i.e. the hash symbol #, then run the script directly from the root prompt, i.e. [HIGH]# /data/local/tmp/lgroot.sh[/HIGH]

i have the newer firmware as well, just did this today. i ran into a problem when i installed superuser from clockworkmod, it was complaining about su or superuser something or another, and kept erroring out, i used 'root checker basic' from the market to verify that it hadnt been rooted. i kept thinking it was a mistake with the adb kit, but it wasnt, because after i finally deciced to install the other superuser from the market from chainsd, it worked, and root checker verified this. im good to go now.

To get ADB to recognize device [HIGH]adb devices[/HIGH] you need the driver, correct drivers for intuition are currently located here. LG LGVS950 Support: Find Manuals & Warranty Info | LG USA
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Old August 31st, 2013, 04:18 PM   #18 (permalink)
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I installed 2nd init-recovery on my rooted LG Optimus LTE II. After that i tried to restore my apps etc after wiping out my delvick cache & phone cache using an file update.zip.
Now when i restarted the phone it shows

[420] Fastboot mode started
[420] udc_start()


when i attach usb cable, it further shows

[80690] reset
[80690] portchange

and never loads lg device driver. when i restart the phone using key combo to go to phone bootloader. then it loads the driver.
please guide me how to recover my phone????
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Old September 7th, 2013, 04:22 PM   #19 (permalink)
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after i root my phone now it all slow down did it happen to anybody else than me and if not and you think i did something wrong please tell me
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Old October 13th, 2013, 02:23 PM   #20 (permalink)
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PLEASE HELP!!! when you save the files where do you save them to and how???
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Old December 9th, 2013, 12:48 PM   #21 (permalink)
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Trying to root my wife's Intuition. I am not a developer, but I have done this stuff before. Fairly new to ADB though.

I am running Software version VS950022B, Build number JZO54K.

I am getting an "access denied" error when on this step: $ rm /data/vpnch/vpnc_starter_lock

Here is what I have done so far:

C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb devices
adb server is out of date. killing...
* daemon started successfully *
List of devices attached
d5e57124 device


C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb push su /data/lo
cal/tmp/su
3870 KB/s (380532 bytes in 0.096s)

C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb push lgroot.sh /
data/local/tmp/lgroot.sh
32 KB/s (164 bytes in 0.005s)

C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb shell
shell@android:/ $ chmod 777 /data/local/tmp/lgroot.sh
chmod 777 /data/local/tmp/lgroot.sh
shell@android:/ $ rm /data/vpnch/vpnc_starter_lock
rm /data/vpnch/vpnc_starter_lock
rm failed for /data/vpnch/vpnc_starter_lock, Permission denied
255|shell@android:/ $

Any ideas? Thanks!
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Old December 19th, 2013, 06:53 AM   #22 (permalink)
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Quote:
Originally Posted by merman54 View Post
Trying to root my wife's Intuition. I am not a developer, but I have done this stuff before. Fairly new to ADB though.

I am running Software version VS950022B, Build number JZO54K.

I am getting an "access denied" error when on this step: $ rm /data/vpnch/vpnc_starter_lock

Here is what I have done so far:

C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb devices
adb server is out of date. killing...
* daemon started successfully *
List of devices attached
d5e57124 device


C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb push su /data/lo
cal/tmp/su
3870 KB/s (380532 bytes in 0.096s)

C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb push lgroot.sh /
data/local/tmp/lgroot.sh
32 KB/s (164 bytes in 0.005s)

C:\Android_dev\adt-bundle-windows-x86_64\sdk\platform-tools>adb shell
shell@android:/ $ chmod 777 /data/local/tmp/lgroot.sh
chmod 777 /data/local/tmp/lgroot.sh
shell@android:/ $ rm /data/vpnch/vpnc_starter_lock
rm /data/vpnch/vpnc_starter_lock
rm failed for /data/vpnch/vpnc_starter_lock, Permission denied
255|shell@android:/ $

Any ideas? Thanks!

You can use the Chinese method live I have,its on click root so you wont need the adb command prompt ive gotten so upset because I didn't know where to put the files..
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Old February 16th, 2014, 12:44 AM   #23 (permalink)
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i was running into the same problem as KingChoad,
running Software version VS950022B, Build number JZO54K,

i felt pretty stupid running the chinese rootmaster downloaded from xda devs, and even more stupid clicking buttons that i couldnt read, however, 'root checker basic' app that i have on my phone now reports i have root access, where it reported that i didnt shortly before.

i wanted to tell others who wanted to try this program for their Intuition,

install the chinese program by clicking the button that gets it to install, usually the lower right buttons. once its on your system, you need your phone connected (not sure what drivers, i have universal adb driver on mine), then once it installs, the program launches, or you can launch it from either your start menu, or your desktop, its all in chinese.

once you have the program open, it shows a connnect usb symbol, connect if you havent yet, once you get the program up, heres what i did.

theres a green button on the right, and i think it said root, i clicked that, and either before, or after that, i saw the app also come up on my phone screen, once i clicked it, it rebooted my phone.

after it rebooted, i saw the chinese program still open on my desktop. STOP HERE. i see it now has a green button on the right, and another button on the left now says ROOT, its a white button. this is where you STOP. see screenshot where you need to stop

http://postimg.org/image/m9cp122z3/

how do you print screen
it means its rooted, and if you click the Green button (that doesnt say root), im pretty sure you will unroot it. i think its safe to close the program now, and see what other kind of damage may have incurred.

maybe our phones have turned into a communist slave machine, i dont know.
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Old February 16th, 2014, 12:51 AM   #24 (permalink)
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ok i was able to successfully check off the 'ota survival' option in chainsd superuser, this time it was successful, so once again, moving forward.

i can tell you this, the chinese program installed two new apps, one i recognize as the one that did the work rooting, the other plainly says 'superuser', and is blue.

this superuser was the program that came up when i checked 'ota survival' where i expected chainsd's to come up. i saw some chinese writing to my fear, then i realised its just because i was running the chinese superuser. those programs are now coming off my system. more later........


EDIT, ok from the applications menu, i was able to remove the program that had a chinese icon, which was the one that did the rooting. but the otherone called superuser i wasnt able to remove yet.

i removed my chainsd just incase, before i did this, since the name was the exact same 'superuser' i thought maybe it just want showing up in the installed app list because of this, but aftyer removing chainsd and reboot it still didnt show up in installed apps, it just showed up in 'all' apps. the only thing i was able to do was disable it, in application menu (all). hopefully it will no longer be set as the default superuser program.

will reinistall another superuser either CW, or chainsd now.
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Old February 16th, 2014, 12:58 AM   #25 (permalink)
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ok i was now able to run $su from adb shell, and it dropped me right to root user

then i went straight for that starter lock just for kicks
Quote:
adb shell
$ su
#
# cd /data/vpnch
# chmod 777 vpnc_starter_lock
# cd /data
# mkdir tmp
# mv /data/vpnch/vpnc_starter_lock /data/tmp
got that bastard moved out.
note, it jumped right back in there within about 20 seconds.
so this time i tried something different
Quote:
# cd /data/vpnch
# rm vpnc_starter_lock && ln -s /data/local.prop /data/vpnch/vpnc_starter_lock
# ls -la
srw-rw-rw- system system 2014-02-15 23:01 vpnc_gui_to_starter
--w--w--w- system system 0 2014-02-15 23:01 vpnc_starter_lock
for some reason it doesnt show up as a symlink yet, so im not worried about it. continuing on for the heck of it, i guess i sort of want to see what happens when i continue on with the original method to see if theres any benefit in the end.
Quote:
shell@android:/ $ adb reboot && adb wait-for-device shell
adb reboot && adb wait-for-device shell
* daemon not running. starting it now on port 5038 *
* daemon started successfully *
error: device not found
1|shell@android:/ $
1|shell@android:/ $ echo 'ro.kernel.qemu=1' > /data/local.prop
echo 'ro.kernel.qemu=1' > /data/local.prop
/system/bin/sh: can't create /data/local.prop: Permission denied
1|shell@android:/ $ su
su
shell@android:/ # echo 'ro.kernel.qemu=1' > /data/local.prop
echo 'ro.kernel.qemu=1' > /data/local.prop
shell@android:/ #
exit (takes us out of root, into user)
exit (now exits by taking us out of user)
adb reboot
now after reboot
Quote:
adb shell
$ su
# /data/local/tmp/lgroot.sh
su
shell@android:/ # /data/local/tmp/lgroot.sh
/data/local/tmp/lgroot.sh
/data/local/tmp/lgroot.sh[3]: cat: /data/local/tmp/su: No such file or directory
shell@android:/ # cd /data/local/tmp/su
cd /data/local/tmp/su
sh: cd: /data/local/tmp/su: No such file or directory
2|shell@android:/ # cd /data/local/tmp
cd /data/local/tmp
shell@android:/data/local/tmp # ls
ls
busybox
init.rc
lgroot.sh
wpa_supplicant
looks like indeed the su file is gone.
going to add it back.
exit shell first, then do an adb push
Quote:
# exit
$ exit
D:\UserFiles\Wolfdogg\mobile-phone\LG-VS950 Intuition\root kit>adb push su /data/local/tmp/su
3045 KB/s (380532 bytes in 0.122s)
> adb shell
shell@android:/data/local/tmp $ su
shell@android:/data/local/tmp # rm /data/local.prop
rm /data/local.prop
shell@android:/data/local/tmp #
now im going to take a peek at starter_lock before removing it
Quote:
shell@android:/data/local/tmp # cd /data/vpnch/
cd /data/vpnch/
shell@android:/data/vpnch # ls
ls
vpnc_gui_to_starter
vpnc_starter_lock
shell@android:/data/vpnch # ls -la
ls -la
srw-rw-rw- system system 1970-01-17 07:46 vpnc_gui_to_starter
--w--w--w- system system 0 2014-02-15 23:01 vpnc_starter_lock
still looks the same.
lets see if it stays gone when i remove it, not sure if that matters or not though
Quote:
shell@android:/data/vpnch # rm vpnc_starter_lock
waited 20 seconds, did an ls and its back.
Quote:
shell@android:/data/vpnch # ls -la
ls -la
srw-rw-rw- system system 2014-02-15 23:22 vpnc_gui_to_starter
--w--w--w- system system 0 2014-02-15 23:22 vpnc_starter_lock
what does that mean, BAD or GOOD? ANYBODY?
now while in adb shell still
Quote:
# reboot
EDIT: well my phone is still rooted, i was able to get into busy boy, and update it, and enjoy the new rooting.

now if i can just figure out how to deverizonitize this phone, since i have yet to find any roms for it.
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Last edited by wolfdogg; February 16th, 2014 at 01:25 AM.
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Old March 29th, 2014, 05:03 PM   #26 (permalink)
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I am having the same problem as merman in the regards to the line
rm /data/vpnch/vpnc_starter_lock
telling me then that permission is denied. Please I would enjoy feedback on this!!
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Old March 29th, 2014, 07:02 PM   #27 (permalink)
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Hey guys,
After I type in the cmd "rm .data/vpnch/vpnc_starter_lock" I receive the message-
rm failed for /data/vpnch/vpnc_starter_lock, Permission denied
Please tell me what I am doing wrong as I am really not sure what I am doing wrong. xP
This is really frustrating because the other cmds until this one work.
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