yashsingh1/xdaforums huggingface dataset:
[LG Optimus 4X HD] barny_stumble:
SD Card Rescan After Root Takes At Least Five Mins

Hi

I rooted my phone using these instructions,successfully! Made a backup with CWM, and rebooted a couple of times. I have noticed now though, that it takes at least 5 mins to rescan my 32G SD card, when before it was super quick. I tried the "adb shell rm /data/local.prop" but the file had already been removed. I uninstalled SystemBackupTest as suggested, and have had no other issues.

Can anyone think of any reasons this may be happening?

Any help would be appreciated!!
[LG Optimus 4X HD] dokii22:
Thanks for tutorial,I sucesfully rooted but with app No Bloat free I disabled all apps which someone listed in thread JB Battery Saving and I don't have any more weather widget.

I can add it but when I want choose city first it says it needs update via Application Manager and when I press Yes it just returns to homescreen.

I didn't disable lge.internal.
[LG Optimus 4X HD] omidz:
Thank you! it worked like a charm

PS: Hope to see more development on this nice phone
[LG Optimus 4X HD] omidz:
too bad sir! thank you for all you've done.
[LG Optimus 4X HD] buhor:
the apk wont stay open

i have the same problem the apk doesnt stay open it closes....any fix for that?
[LG Optimus 4X HD] muzamal:
It works on v10d Dutch version.

Thank you!!
[LG Optimus 4X HD] atipon:
No need to reboot 3 times, since we already got temp root adb shell with IS11LG_SystemBackupTest.signed.apk

Try this modified script.
[LG Optimus 4X HD] nikokazaa:
Works perfectly!!!
[LG Optimus 4X HD] alexp999:
I will repackage this up as a new zip and attach/amend the guide when I get in this evening. Thanks!
[LG Optimus 4X HD] mbrandhu:
Hooray! Big thank you from germany, now mine is rooted too! :)

(Newest german ROM)
[LG Optimus 4X HD] pintness:
thou shalt be praised
[LG Optimus 4X HD] Maatje:
For me too on v10d Dutch... Hoooraayyy!!!
[LG Optimus 4X HD] alexp999:
OP has been updated, also modified the linux and mac scripts while I was re-packaging.

Thanks!
[LG Optimus 4X HD] ljungberg3:
video guide

https://www.youtube.com/watch?v=Xji-RFEE_hU
[LG Optimus 4X HD] alexp999:
Nice, only problem is, it doesnt mention about opening the app and then rebooting the phone after.... :(
[LG Optimus 4X HD] ljungberg3:
****! haha I made the video. It will still help a bunch of people gain root, i hope!
[LG Optimus 4X HD] naaaaaah:
Awesome, it worked perfectly also on my italian version. Very clear guide!
[LG Optimus 4X HD] muzamal:
Now that we have root is it possible to install themes or icon packs for the stock launcher?
[LG Optimus 4X HD] elboco:
alexp999

How can i get into recovery mode? Rom manager dosen`t support cwm yet.
[LG Optimus 4X HD] alexp999:
Same as other androids, power off, then press and hold power down while holding power on, when the screen turns on, release power then release volume down once you see recovery.

Just be aware there is not much we can do with stock recovery. And there seems to be some issues, with touching non system partitions and the phone not booting.
[LG Optimus 4X HD] elboco:
alexp999

But can i install a custom rom? Or do i have to do something else? All it`s so much easyer with cwm:)
[LG Optimus 4X HD] alexp999:
As far as I know there arent any custom ROMs about at the moment.

The only way you could install one is to push all the files via adb, but we can't change the stock kernel or recovery at the moment.
[LG Optimus 4X HD] elboco:
alexp999

Hmm. Ok. To bad. I really want jb on it:) But tnx anyway :)
[LG Optimus 4X HD] naaaaaah:
As I said before, I managed to root the phone following your guide. Now, the problem is that it doesn't connect anymore to Win7 via USB. Any other experiencing this problem?
[LG Optimus 4X HD] alexp999:
CM10 is already in the works, we just have to find a way round the bootloader.

We got root, it just takes time :)

@naaaaaah:

Have you uninstalled the System Backup App? And tried rebooting the phone again?
[LG Optimus 4X HD] Afro:
Are you sure you have installed Android 4.0.3?

If you see Android Version 4.1.2 on Settings -> Device Info, you should look for another method to root ;)

It's here in the forum, so just use search :)
[LG Optimus 4X HD] buhor:
Well its rooted now ty...I have several questions from all in one tool wich recovery should we flash what options. Works for us ?thanks

Enviado desde mi LG-P880 usando XDA Premium HD app
[LG Optimus 4X HD] Wesley_NL:
hello guys, i did everything the discription told on 1st page but phoe stays slow after uninstall the apk what have i done wrong ?
[LG Optimus 4X HD] 66aaaa:
phone is very slow after root

My lg 4x hd is very slow after root...

I just tried to make this few steps above, but I got this message.

Any idea what to do?

Pls help me!

THX

66aaa
[LG Optimus 4X HD] Afro:
Seems like you have more devices connected to your PC...

Make sure the O4X is the only android device connected to your PC and you don't run any android emulator!

...sent with Tapatalk 4 beta...
[LG Optimus 4X HD] bwin999:
Anyone help

Can anyone please help me? This is what I get on command prompt.. Whats wrong with it?

Is my 4X HD required unlocked bootloader? required ADB? required Busy box? Before root?

Anyone can assist me? I wish to root and install CWM
[LG Optimus 4X HD] Flying_Bear:
to me, that message shows there is no file called "root" in that folder. check if it's really there. also, you gotta unlock your bootloader FIRST, THEN install CWM. don't mess up the order of things. rooting comes first though.

edit:

this is a way to root on ICS, not JB btw. it won't work on JB.
[LG Optimus 4X HD] bwin999:
Do you know which thread to check for bootloader?

The device runs on Android 4.0.3 now. V10h.
[LG Optimus 4X HD] Flying_Bear:
update to jellybean 20a, then you can root it it/unlock bootloader/install CWM/install custom roms
[LG Optimus 4X HD] bwin999:
previously, I was on android 4.1, bricked the phone, unbricked with lg flashtool, back to android 4.0.3

any idea how to unlock bootloader on 4.1 JB?
[LG Optimus 4X HD] optimuswhite:
go here: official unlock procedure

http://xdaforums.com/showthread.php?t=2224020
[LG Optimus 4X HD] voon:
Way to complicated, if you ask me. At least on my 4.1.2, the little cat/echo procedure works.
[LG Optimus 4X HD] wajahebat:
After install the SystemBackupTest.apk...I cant run it, i get FC's when trying to open it from the drawer:(
[LG Optimus 4X HD] bwin999:
May I knoew the unlock bootloader is for ICS or JB?

What is the terminal?
[LG Optimus 4X HD] voon:
Are you on LG Original 4.1.2? It did not work for me, either, on that OS Level. The simple adb sideload procedure with the original LG recovery worked, though.
[LG Optimus 4X HD] wajahebat:
Yeah ive successfully managed to get rooted with that method...:good:
[LG Optimus 4X HD] riaz.ahamad:
Most efficien way of Roing your LG

First of all thank the machine" the front of oopsware Great God, produced below a key forum ZeRospot

1. Preferred adb tool on the computer, and have installed adb driver. Is the driver of the machine, the peas like software is installed on the line.

2.Phone off, press the "volume down" and "power" key to boot, do not release the volume down key until the screen appears with a red triangle robot.

3 Insert the USB connected to the computer, use the "volume" down select "Apply update from ADB, press the power button to determine two lines of yellow text prompts.

4 Double-click ROOT.BAT.

5.Installation is complete, the phone to return to the menu cursor restart items, press the power button to restart the phone.

6. Superuser icon appears on the phone, running "information page, click here to check for updates, connect to the network, mandatory update
[LG Optimus 4X HD] WindowsNT:
Works perfect. Thx.
[LG Optimus 4X HD] ZTEBlade0:
Ehm, excuse me, but the SystemBackupTest download is a ZIP FILE, and i didn't see an apk file in there, so is there something else or is something wrong with my eyesight? Obviously android apps cannot be installed with ZIP files. Why doesn't anyone mention that?

I finished the procedure, all seems to be working ok. But the device takes about 10 times more time to go from boot to lock screen than before it was rooted. Any ideas?

It takes a full 3 minutes to complete boot and get to the lock screen, after root.

5 minuts pass and then:

Scanning media files, preparing storage

and then....

Scanning media files on SD card, preparing sd card

With both taken another 5 minutes.

Is this normal??
[LG Optimus 4X HD] htc_hd:
Hello. is everyone trying to root his phone with this method?http://http://www.lg-phones.org/how-to-root-lg-optimus-4x-hd-android-4-1-jelly-bean.html. is working? my phone run stock JB 4.1.2. I want to know which method is better for me.thanks
[LG Optimus 4X HD] Afro:
The method given on first post of this thread is only for Android 4.0.3 (10x-firmware versions)

The link you gave us is the method for Android 4.1.2 (20x-firmware versions)....

Original post is here and your link is just a "copy" of the original post... ;)
[LG Optimus 4X HD] htc_hd:
thank you!!!
[LG Optimus 4X HD] Afro:
You're welcome :)
[LG Optimus 4X HD] yoeleli:
I installed the apk, and when i try to open it it instantly force closes.

help?

Thanks in advance.
[LG Optimus 4X HD] kessaras:
which apk ? depends ur android version. post no. 401. like he said the new way to root the phone is at that link !
[LG Optimus 4X HD] yoeleli:
Nevermind i got root with the other method already, Thanks!
[LG Optimus 4X HD] gengi:
Picture not showing on making/receving/calls. Anyone else?
[LG Optimus 4X HD] Camawn:
Hello,

I currently have a Canadian LG P880 running v10f. I was wondering, how does one downgrade to v10c to root? I don't understand what needs to be done.
[LG Optimus 4X HD] balloon27:
I guess it will work fine on v10f. Have you tried that yet?
[LG Optimus 4X HD] sPEADy:
Just do'nt pollute each thread just because that you cannot understand how to do root .......... I give you a hint you need to be on V10H for this now if you still don't get it I would say.......
[LG Optimus 4X HD] Camawn:
Yes, it doesn't work...

Speady, I want to thank you for your hint. However, I've tried every single method to downgrade and it's just not working. I don't know what to do.

I don't appreciate you saying I'm 'polluting' this thread ; I'm asking a valid question and expecting valid answers.
[LG Optimus 4X HD] Flying_Bear:
listen man, you have canadian version of this phone - p880g. it's completely different to regular version; only version you can root if i recall correctly is 10c, and it's been almost removed completely from the internet. it has been, however, posted numerous times by users here at xda, so try searching for it, if you're lucky, you might just find it. after (if) you find it, use kdz flasher to flash it, and search for threads for a way to root it.

in the end, i think you're probably the only user on xda atm to have canadian version of this phone :p so there aren't many people who can help you with your requests
[LG Optimus 4X HD] Camawn:
I found it. However, Kdz flasher isn't working for me....
[LG Optimus 4X HD] Flying_Bear:
well then, give us a tip what exactly isn't working with it? most likely reason for it not to work are missing drivers, but we can't give you a solid tip without knowing exactly what the problem is.
[LG Optimus 4X HD] Camawn:
Basically, whenever I start the upgrade, the program crashes.
[LG Optimus 4X HD] Daniel Kng:
Yes. The Programm Crash too.

Gesendet von meinem LG-P880 mit Tapatalk
[LG Optimus 4X HD] nitink912:
root with kingo android root. it will not crash.
[LG Optimus 4X HD] grekko44:
Thanks for that bit of info, I'd tried and tried with 'root' advice from numerous posters and sites but all to no avail until I spotted your advice:good::good::good:....you are a star, and the method is so simple even I found it easy;).

Should anyone else be in need here's the link:

http://www.kingoapp.com/
[LG Optimus 4X HD] frankiefkit:
hi,

my fiancee have ld 4xhd and it has never been rooted, i want to root the phone and put some rom on it. can anyone tell me does this way of rooting works and which rom (link please) is the best in performance and battery life, because now performance and battery life are terrible.

i have htc sensation since it got out and i know everyhing about rooting it but i have never rooted her phone.

thanks
[LG Optimus 4X HD] chocohagelslagje:
Thanks, this worked for me too!!
[LG Optimus 4X HD] frankiefkit:
Anyone, please?
[LG Optimus 4X HD] sPEADy:
Update to Jelly Bean via LG Official Support Tool (From LG Official Site )

Root after update (http://xdaforums.com/optimus-4x-hd/general)

Unlock Boot loader (http://xdaforums.com/optimus-4x-hd/general)

Flash Custom Recovery (http://xdaforums.com/optimus-4x-hd/development)

Flash Custom Rom (http://xdaforums.com/optimus-4x-hd/orig-development)
[LG Optimus 4X HD] Vestar:
Hi guys!

I installed the apk file, but the system backup test doesn't work.

It stops working just after i start it.

How can i solve?
[LG Optimus 4X HD] ecsk:
I just successful rooted my 4x hd version v10h, I have a few comment on the procedures :

1) the lg driver seems to work fine with my Windows 7 64-bits laptop although there are general comment that it only works for 32 bits.

2) Step 9 of original procedure (in page 1), the phone is not only slow, it actually not responding to anything, except power button.

therefore

3) it's better move step 11 (make sure USB connection is in charging mode) to between step 5 and 6, because once you're in step 11 there is no way you can change that.

I was in a little panic when it's up to step 11, I thought I brick my phone :)
[LG Optimus 4X HD] georgitomov_86:
I have the same problem.Pls help.IS11LG_SystemBackupTest.signed.apk after the install : unfortunatly has stop working.What i have to do please help me.
[LG Optimus 4X HD] trevo92:
I flashed the omnirom and now I post the robot permissions. Can I repeat this process?
[LG Optimus 4X HD] adr1us:
hi, I've done all the passages and i can install the S11LG_SystemBackupTest.signed.apk but i can't open it. the pass simply crashes.

I don't have any anti virus on the phone, did anybody experienced the same issue?
[LG Optimus 4X HD] oudbrood:
Succesfully root V10d (dutch).

USB - PC is working

---------- Post added at 07:16 PM ---------- Previous post was at 06:54 PM ----------

What is the function of the app what must be installed for rooting?
[LG Optimus 4X HD] Dexter_nlb:
i am not sure how the mmcblk0p2 fits into the checksum calculation, but it is possible to freeze both regular boot and safe boot up, by simply moving around with a few bytes in the start of boot.img. just for testing checksum. but seems impossible further into the file. then bootloader fails for now.

there is a wallpaper binary in /sbin, not sure what it does but it does contain "lge.signed_image=false" information like that..

not sure if thats boot.img related or something else..

maybe a new thread? achieving unlocked bootloader?
[LG Optimus 4X HD] aremcee:
CM10 (and 9) are done, and have been for a while. But something needs to be done about the damn sig check.
[LG Optimus 4X HD] aremcee:
Something else. It's for integrity checking on a number of system libraries related to DRM, but disabling it doesn't bypass the sig check.
[LG Optimus 4X HD] Ben-B:
Good work! Let the ROMs commence!

Would un-rooting be simple? In cased anyone needs to send a phone back under warranty or anything?
[LG Optimus 4X HD] alexp999:
I think SuperSU, might actually contain an "unroot" option.

But either way it should be simple enough, and you can always reflash a stock ROM, which should wipe it all out.
[LG Optimus 4X HD] atipon:
Thanks for the update! Good news.

The bad is locked loader. :p
[LG Optimus 4X HD] chudik:
Hey Guys,

Much much much thanks , its really works and i am so appriciate your work :)

Thanks again :o

I have encounter some error during runing BAT file

It seems it Rooted my phone , i have verifyied it with Root checker APK and RomToolbox aswell and both granted permissions and works fine

but when i am running the BAT file at the end it writes -

"rm failed for /data/local.prop. no such file or directory"

Please see screenshot attached

Thanks in Advance.
[LG Optimus 4X HD] oudbrood:
I had the same error
[LG Optimus 4X HD] alexp999:
It's nothing to worry about, the script tries to remove that file twice to make sure it's definitely gone.

I will update the script later today so it doesn't output an error. It will still have rooted successfully.
[LG Optimus 4X HD] _RSAobj:
I agree on the new thread to try and exploit/crack the bootloader lock.
[LG Optimus 4X HD] naaaaaah:
Sorry, I rebooted and then it woredk. Still I can't find a way to see it on my Macbook, but this was a problem I had also before rooting.
[LG Optimus 4X HD] oudbrood:
Can only root causes a higher batterydrain?

I tought that root only a permissons mod is
[LG Optimus 4X HD] misato9307:
Does anyone successfully root it with v10c (Hong Kong version)??!!
[LG Optimus 4X HD] alexp999:
I can't see any reason it would cause lower battery life.

My battery life is the same as it was before root.

It only adds two binaries (su and busybox) and the SuperSU app.
[LG Optimus 4X HD] hkhkhkhk:
with root unused system apps can be disabled and this saves battery:laugh:
[LG Optimus 4X HD] TechGR:
Anybody working on a Jelly Bean ROM for this baby?
[LG Optimus 4X HD] alexp999:
CM10 has already been shown running on O4X.

:D
[LG Optimus 4X HD] TechGR:
That sounds promising :D I can't wait for the guys to be ready!
[LG Optimus 4X HD] alexp999:
Vid is here:

http://www.youtube.com/watch?v=ZdcMZMRQdqo

Prob best to discuss in a new thread though :)
[LG Optimus 4X HD] oudbrood:
Thank you....i had the same thougs.
[LG Optimus 4X HD] ksekhar:
Do you have any list of apps you suggest that are safe to freeze? I froze On Screen and Email and also decreased image compression to 99% in media profiles xml. After reboot i got boot loop and ended up spending 5 hours updating my phone back to normal using support tool. So i can use some recommendations here :)
[LG Optimus 4X HD] smoke2:
Diky, uz som Ti na FB napisal spravu :)
[LG Optimus 4X HD] TechGR:
Tested and it works on a EU V09B, thank you.
[LG Optimus 4X HD] misato9307:
Should I wait for v10d before to root as I am currently on v10c (Hong Kong version)??!!
[LG Optimus 4X HD] alexp999:
As far as I know, it should work on any version at the moment.
[LG Optimus 4X HD] misato9307:
Thanks!!!
[LG Optimus 4X HD] misato9307:
Done it in 5 minutes, and nothing so far slow down!!
[LG Optimus 4X HD] morissio:
Hi to all! one friend has done it and all seems ok but after hours he has restart the phone he did not able to unlock the phone ... he has wrote again the comand and the phone has unlocket.

is it normal? He must make the "REALLY SLOW AFTER ROOT?" steps?

If he would remove it, What he can do?

Thanks in advance! and sorry for my english
[LG Optimus 4X HD] alexp999:
Has he uninstalled the SystemBackupTest app?
[LG Optimus 4X HD] morissio:
Thanks Alex! I just sent to him a message... but is it mandatory?

Is there a way to remove the root after follow this metod? is required a factory reset?

EDIT:

He told me that had removed the apk just finish the metod. Any idea?

Thanks again, bye!
[LG Optimus 4X HD] alexp999:
Try the instructions for if it's being slow from the first post.
[LG Optimus 4X HD] misato9307:
REALLY SLOW AFTER ROOT?

Remove the "SystemBackupTest" app, if you haven't already.

On your phone, go to "Settings -> Developer options" and make sure "USB debugging" is TICKED

Connect your phone via USB to your computer.

Open a command prompt (may need admin privelages, right click, run as administrator)

Type without quotes "cd C:\o4xr" and press enter.

Type without quotes "adb shell rm /data/local.prop" and press enter.

Type without quotes "adb reboot" and press enter.

Should I really need to type in the above commands if I don't experience any slow down?!!

What is it really for??
[LG Optimus 4X HD] alexp999:
If it's not being slow then don't worry about it. :)
[LG Optimus 4X HD] morissio:
Is there a way to remove the root after follow these steps? :confused:

Thanks to all for the support!!! and good mid-August ;)
[LG Optimus 4X HD] alexp999:
I will upload an unrooting script sometime this week, otherwise you can use the unroot option in SuperSU for now.
[LG Optimus 4X HD] muzamal:
After rooting i am having 2 problems.

WiFi doesn't turn off anymore when the screen turns off, i have tried all the setting in advanced settings.

And also after rooting my phone gets hot even if i am not using hspa, before it would only get hot when i was using hspa.
[LG Optimus 4X HD] nic85:
edit..
[LG Optimus 4X HD] vijay2:
even my phone also get hot
[LG Optimus 4X HD] EQUANCY:
I exactly followed given directions but doesn't work, just hangs on command prompt nothing more.

"Already 10 minutes been..."

what is wrong?

Edit:

I have found problem and did a few other things.

First USB connection mode MUST BE CHARGING ONLY OTHER WISE STUCK ON WAIT-FOR-DEVICE COMMAND.

I have...

[COLOR=DarkRed]Installed and opened given apk
typed cmd : adb reboot
after restart root.bat executed then device rebooted.
[/COLOR][COLOR=DarkRed]typed cmd : [/COLOR][COLOR=DarkRed]adb uninstall IS11LG_SystemBackupTest.signed
adb reboot
[B]adb shell rm /data/local.prop[/B] didn't worked because it wasn't exist?!?...
Installed supersu and tested on ES File Explorer works flawlesly.[/COLOR]
[LG Optimus 4X HD] Dexter_nlb:
here is my way i root my o4x after each full restore, when i brick it using my changes to try and make new mods.

install the kdz (i use v10d EURO OPEN)

instantly enable Settings -> development -> debugging -> enabled

attach phone to pc

install testbackup app

adb install IS11LG_SystemBackupTest.signed.apk

run the testbackup app once on the phone and restart phone

during bootup, login with adb shell

# su -

# stop

remount /system as read/write

adb remount

install su into /system/xbin

adb push su /system/xbin

install busybox into /system/xbin

adb push busybox /system/xbin

start another shell : adb shell

# chmod 4755 /system/xbin/su

# chmod 755 /system/xbin/busybox

# /system/xbin/busybox --install /system/xbin

# rm /data/local.prop

# reboot

install my recovery and restore a full backup.

maybe someone else can use my procedure more easily.
[LG Optimus 4X HD] chalid:
Thanks, rooting worked perfectly fine.

However, use caution when deleting not needed apps. There are quite a few dependencies. For example: I deleted the LG Launcher because I don't use it. After resetting the phone the setup wizard starts, which wants to forward you to the LG Homescreen when being finished. Since I moved it somewhere else, the setup wizard force closed and restarted every time. The phone ended up in a loop. Luckily I was able to restore the LG Launcher through ADB... :silly:
[LG Optimus 4X HD] Hidden92:
11. Make sure the phone is in "Charging Only" mode.

should be step 8...

I had it on MTP mode and it took an eternity to change it (I was already trying to uninstall the app via adb)

5 Minutes after I tried to change the mode blindly it finally changed and I could continue.
[LG Optimus 4X HD] reas0n:
and only this way makes Titanium Backup work... i have open v10d
[LG Optimus 4X HD] :
If i don't feel any slowdowns will entering them nevertheless cause any harm?

sorry but i just want to make sure im not using a slowed phone unknowingly.
[LG Optimus 4X HD] Dexter_nlb:
when its slow, its reealllly slow.. its like when you close your eyes you know its dark kinda thing.
[LG Optimus 4X HD] :
oh, thanks alot for the info.

i was thinking its those slowness that i wouldn't know doing simple things like homescreen / surfing, unless i plays 3d games.
[LG Optimus 4X HD] ~Issac:
any methods to unroot????? help!!!
[LG Optimus 4X HD] Dexter_nlb:
install stock kdz updates using kdz updater (search xda for it) and you are back tono-root stock edition
[LG Optimus 4X HD] ~Issac:
http://xdaforums.com/showthread.php?t=1060121

just like this one?????:confused:

can i update the firmware by using this updater???:victory::confused:
[LG Optimus 4X HD] Worm_1972:
V10F

Thanks, rooting worked perfectly fine with V10F (GERMAN and EURO OPEN) :good: