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[GB] [Super Easy] Method of Rooting LG OPTIMUS 3D MAX P720/P725/P720H/SU870(CUBE)

Hello guys I have finally rooted my LG OPTIMUS 3D MAX P725 phone and here are the steps originally from Russian forum 4pda.ru for LG OPTIMUS L5 working on our beloved OPTIMUS 3D MAX.
Working on LG OPTIMUS 3D MAX P720, LG OPTIMUS 3D MAX P725 AND LG OPTIMUS CUBE SU870 ONLY GINGERBREAD
NOTE : I am not held responsible for bricked devices
Follow the given STEPS CAREFULLY :
OFFLINE Root for LG OPTIMUS 3D MAX
1. Download the archive and unpack it (create a folder on desktop named whatever you like):
Root kit http://www.mediafire.com/?fafrhfiu409zy99
2.Download "IS11LG_SystemBackupTest.signed.apk" attached below and copy to root of your phone (internal storage).
forum.xda-developers.com/attachment.php?attachmentid=1272418&d=1345501542
3. On the phone in the "Options -> Security" enable "Unknown sources"
In the "For Developers" enable "Debug on USB"
4. Install "IS11LG_SystemBackupTest.signed.apk"
5. Then open the installed "SystemBackupTest" and not closing
Hold down the power button and reboot the device.
6. You might get BOOTLOOP ,so don't PANIC. Just wait at the LG LOGO.
After 3-4 Minutes on LG LOGO, PRESS Power Button.
7. Connect the usb now ( make sure that usb drivers are already installed ).
7. In the folder you've created «O3DM Rooting Kit» run the file «root.bat»,
wait until the script is executed and the phone will reboot.
8.Then on the phone, open the Google Play Store and you will find "SuperSU"
Upgrade "SuperSU", and then open the program asks updates ... Click OK, to
9.Update SU binary ...
10.Now you have a root-law. You can delete an application «SystemBackupTest» ...
Please see attached photos for proof Enjoy...
IT TOOK MORE TIME TO SEARCH AND TEST AND EDIT THIS METHOD THAN THE TIME YOU WILL TAKE TO JUST " HIT THANKS".
So, Don't forget to " HIT THE THANKS "

Sorry if this is a silly question but.. do you know if it works on V10d?
Let me know if you'd like any further information about my phone - I'm desperate to root this thing, I've spent so many hours trying so many methods.
Sent from my LG-P725 using xda app-developers app

It is working perfectly on v10c nd i think it will work also on v10d.
Its the easiest way.
Nd don't forget to hit thanx after rooting.
Soon more to come from me.
Sent from my LG-P725 using xda premium

It worked!!
You, sir, are a legend.

Thanx for your words.
Don't forget to click thanx.
Soon more to come.
A recovery nd then a rom
Sent from my LG-P725 using xda premium

I clicked the Thanks button before even writing
Yep a new ROM would be awesome. I have Bootmanager installed but it's not recognising the device. I had an HTC Desire HD before this, but I rooted that about 2 years ago - maybe I'm forgetting some step like ClockWorkRecovery?
I'll be watching this thread with great interest

Yes after rooting next step is a recovery.
No CLOCKWORK MOD RECOVERY yet.
So i have asked one of my friend to make it for me.
Hope to get it working.
Then its easy to make a custom rom.
U can also be updated at my facebook page.
facebook.com/optimus3dmax
Sent from my LG-P725 using xda premium

Darn.. I tried clockwork recovery backup phone ROM.. and now I think I've bricked it. Stuck at the LG screen. I should have just been patient and happy with the Root access Looking for ways to unbrick it.

For that u can download LG SUPPORT TOOL from the official site by searching your phone.
After installing.
Install it.
Run it and go to tools and recovery phone.
Add your imei nd click check.
Den u can recover your phone through it
Sent from my LG-P725 using xda premium

Oh wow, lol I was about to post about how I solved it. The scary thing was that I couldn't get into recovery mode via the normal method of holding Vol up & Power. So I looked all over, and eventually tried just powering it on by only holding the Vol up button while having the USB cable already inserted. For some reason, that allowed it to enter recovery mode. I'd also noticed that if I tried just booting the phone, each time in my Device Manager it would show the Comm port for a split second before becoming inactive again.
And yeah, once I could see it in S/W Upgrade, I knew I had a window in, and did exactly what you'd said. I just really wanted to stress how important it is to be able to get into the Recovery Mode, in case anyone else gets this frightening situation. I truly thought I'd locked myself out forever. Back to stock, I'll now confidently re-apply your excellent method of obtaining root. ...and wait patiently this time for how to do anything more nifty such as get BootManager working

I have tried to root the phone with the given instruction above..and it WORKS!!!!

Now recovery done!
Guyz great newz for you all..
I and my friend RON GOKHLE had finally made a fully working recovery for our lovely optimus 3d max p725.
I am uploading and creating a thread!!!
Will b back to you ASAP.
cheers!!!

NICE!
You and Ron Gokhle deserve a huge thanks for that bro. Keep up the incredible work guys!

U guys are genius!!!

Thread made
Here is the link:::
Go through it... give replies
LG OPTIMUS 3D MAX THREAD BY ME
http://forum.xda-developers.com/showthread.php?t=1889412

THaNKS THANKS THANKS
I have rooted my p720.

Now u rooted try the recovery by me ..
Link is given above.
Please try it nd see does it work for p720 also!!!!!?????
"Hitting Thanks will encourage me more"

Man if this works you'll get a thanks hit from me every time you POST :laugh:
Keep up the good work! I'll try the recovery and report back.

If it doesn't works i will make another1 for u.
So tell me
"Hitting Thanks will encourage me more"

Hell yeah! In CWM-Based Recovery v5.0.2.8 now and backing up!
Thanks a million. Should I be ok to start using BootManager for multi ROMs?

[Q] LG P920H bricked

Hello guys, I hope you can help me over here. I know that there is a lot of chance that what I am about to ask, would be around in the forum, but I need to ask anyway.
First of all I am a Sasumg device's user, so i don't know much of the LG devices as i do about the Samsung devices. The point is that a friend of mine has a LG OPTIMUS 3D (P920H) and we are having sometroubles while trying to install CW 10 in the phone.
First we managed to install CM 10 and it booted, but it had no signal at all, only WI-FI. After we tried to downgrade the phone by restoring the backed up rom that we made before installing CM 10, but the phone got stuck at the LG logo.
Yeah, yeah, I know that there is a lot of information in tghe forum, but I am not looking for you guys to tell me how to fix this problem, I jut need some kind of information about the files and all that stuff, for example, I have readed about the baseband, but I really don't understand how to flash it, and that KDZ files and all that stuff. Samsung is much simple in that way, ODIN, put the file in the correct place and that's all, I understand that it must be something like that for LG, but I need some help about the files, or you can point me to the correct threat to downgrade the phone or to flash the baseband for the P920H.
Thanks a lot guys.

OK bro u can either flash kdz which is a bin and fls file combined together using LG kdz flasher .....or u can flash bin and fls files each alone
Using LG flash tool .
Fls is the basband
Bin is the rom
Download mode is ;;: take out the battery and hold the volume up and then insert the cable while holding volume up and then 5 second later insert the battery and 3 seconds release volume up this is called download mode.
Sent from my LG-P920 using xda premium

thanks
Thanks a lot buddy. You gave me some lights about this problem.

Just follow this guide :-
http://forum.xda-developers.com/showthread.php?t=1629307
To enter download mode :-
-Now your phone in your hands without any thing .
1- Remove sim ,sd cards and battery .
2- Hold vol+ and keep holding ...
3- connect it with PC and keep holding ...
4- Now your phone is connected and you are still holding ... inseart the battery and keep holding for ~3 seconds . Now you should see some korean words and two arrows like the sync symbol .
Good Luck .
If you have any question ask .
Sent from my LG-P920 (ICS Ported)
Try Use THANKS Button If I Hepled

[Q] [HELP][P720H] Bricked with Clockworkmod - Any solution?

Today I rooted my O3D Max and when I was installing Clockworkmod Recovery, it prompted me to choose between Optimus 2x and 3D, then I touched the 3D thinking it was the right one, but when it rebooted, got stuck in LG logo screen at the start.
It only turns off when I remove the battery, or press 3d button + lower volume + power button, if a put the battery back, in 3 seconds it starts, so I can't access the CWM to wipe data.
Is there any solution to this?

Welcome to our forum I hope you will find what you need .
You (O3D max user(s)) really need help ,, every time the same problem because of phone name (I'm thinking to create a guide for O3D max users , I hope)
Your problem is easy , what you need :-
KDZ Flash tool (sorry I forget the name)
KDZ file for O3D max
You should enter download mode (emergency mode) but I don't know how because I do not have 3D max . And then connect to PC and flash the KDZ .
I didn't give details because this is different from phone to another , but in general this is the method to solve your problem .
Sent From My LG-P880 (O4X)
By pressing "THANKS" You Would Help Me

OS_Hacking said:
Welcome to our forum I hope you will find what you need .
You (O3D max user(s)) really need help ,, every time the same problem because of phone name (I'm thinking to great a guide for O3D max users , I hope)
Your problem is easy , what you need :-
KDZ Flash tool (sorry I forget the name)
KDZ file for O3D max
You should enter download mode (emergency mode) but I don't know how because I do not have 3D max . And then connect to PC and flash the KDZ .
I didn't give details because this is different from phone to another , but in general this is the method to solve your problem .
Sent From My LG-P880 (O4X)
By pressing "THANKS" You Would Help Me
Click to expand...
Click to collapse
Yeah, first, thank u for the quick help, and I was looking for some O3D Max stuff in XDA, but it's mixed with the O3D stuff, some posts are for P720h like the one I followed to root this phone, it worked, but I couldn't find anything about these "unbricking tools" to O3D Max, only for O3D.
I owned a P970h and already done this before, but this time I couldn't find these files.
Now the phone doesn't turn on anymore , so I'll keep searching.
Thnks.

I found this and I'll try it, then post here the results.
(KDZ File + Smartflash)
http://forum.xda-developers.com/showthread.php?t=1973656
(KDZ Firmware Update Fix)
http://forum.xda-developers.com/showthread.php?t=1473781

brassioli said:
Yeah, first, thank u for the quick help, and I was looking for some O3D Max stuff in XDA, but it's mixed with the O3D stuff, some posts are for P720h like the one I followed to root this phone, it worked, but I couldn't find anything about these "unbricking tools" to O3D Max, only for O3D.
I owned a P970h and already done this before, but this time I couldn't find these files.
Now the phone doesn't turn on anymore , so I'll keep searching.
Thnks.
Click to expand...
Click to collapse
If the phone can't boot any more try this :-
This can turn on your phone into download mode to flash system .
http://forum.xda-developers.com/showthread.php?t=1971014
And thanks for these link it will be useful for future .
Sent From My LG-P880 (O4X)
By pressing "THANKS" You Would Help Me

brassioli said:
Today I rooted my O3D Max and when I was installing Clockworkmod Recovery, it prompted me to choose between Optimus 2x and 3D, then I touched the 3D thinking it was the right one, but when it rebooted, got stuck in LG logo screen at the start.
It only turns off when I remove the battery, or press 3d button + lower volume + power button, if a put the battery back, in 3 seconds it starts, so I can't access the CWM to wipe data.
Is there any solution to this?
Click to expand...
Click to collapse
I had that problem a few weeks ago, trying to install CWM Recovery through ROM Manager.
I had to flash a new ROM to get the phone working.
You should use this tutorial to install CWM or TWRP Recoveries: http://forum.xda-developers.com/showthread.php?t=1978543
Boa sorte!

[Q] LG optimus F5 rom flashing in bootloop

Hello. I have a problem with my LG optimus F5. I tried to install chainfire 3d and now im stuck on a bootloop. As i understand i have to flash rom or uninstall chainfire 3d. I have found my phones stock rom (.kdz file) but i dont know what program i need to flash my phone or how to uninstall chainfire using pc.

Kyrso said:
Hello. I have a problem with my LG optimus F5. I tried to install chainfire 3d and now im stuck on a bootloop. As i understand i have to flash rom or uninstall chainfire 3d. I have found my phones stock rom (.kdz file) but i dont know what program i need to flash my phone or how to uninstall chainfire using pc.
Click to expand...
Click to collapse
You do not need any stock rom files, just install "LG Mobile Support Tool", follow the instructions in that program, once everything is connected, click on "Options" (Top right corner) then choose "Upgrade Recovery".
By doing so, it will rewrite your system files back to original ones and erase internal memory, and you'll lose root access.

Hi
Can anyone please advise how to get into download mode on an lg optimus f5 ?
Thanks

jnm5295a said:
Hi
Can anyone please advise how to get into download mode on an lg optimus f5 ?
Thanks
Click to expand...
Click to collapse
If it's not too late, here it is:
Turn phone off;
Hold VOLUME button down (vol -);
Connect the USB cable..

LG G PRO2 Boot loop after Lollipop upgrade

How can i fix this? Need help

Flash again using LG Flash Tool, use D838 international version of Lollipop stock rom
Go to 'Download Mode'
Set the flash tool to CDMA+Emergency
Make sure you do everything OFFLINE

My phone got stuck at 90% while flashing D838 ROM. Now it does not open anymore - only the LG logo shows off and on and can no longer be detected by my PC. My phone now is on a 'bootloop" mode. And I can no longer go to Download mode so I can flash anew.
Any help from our Masters out there?
TIA.

profeduards said:
My phone got stuck at 90% while flashing D838 ROM. Now it does not open anymore - only the LG logo shows off and on and can no longer be detected by my PC. My phone now is on a 'bootloop" mode. And I can no longer go to Download mode so I can flash anew.
Any help from our Masters out there?
TIA.
Click to expand...
Click to collapse
Take a look at my thread for LG V20, read fastboot tutorial in particular. Most knowledge on my thread applies to LG-D838 which I own too. Just change things accordingly. For instance, instead of LG UP tool use LG Flash tool.
Once you read the articles, you would be your own master. Good Luck.