yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 Q&A, Help & Troubleshooting] Mysterioso:
So right now i have a major problem. It all started when i tried to update my gs4 with Kies. After the update there was a security warning in the notification bar (an unauthorisised app wants to have acces to system or something like that). To get rid of this i made a full wipe (cache, system,dvalik cache). After that i tried to flash the stock firmware. But it always leads to failure. I've tried it with Odin 3.07 aswell with 1.85. I've also tried different USB-ports and I reinstalled the drivers.

When I try to boot the device i get a warning sign with a text: Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again. (the phone doesn't connect to Kies)

I would be really glad if someone could help me!

Greets Simon

The Odin log:

<ID:0/003> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> I9505XXUBMGA_I9505OXXBMG3_I9505XXUBMGA_HOME.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/003> Odin v.3 engine (ID:3)..

<ID:0/003> File analysis..

<ID:0/003> SetupConnection..

<ID:0/003> Initialzation..

<ID:0/003> Get PIT for mapping..

<ID:0/003> Firmware update start..

<ID:0/003> sbl2.mbn

<ID:0/003> NAND Write Start!!

<ID:0/003> sbl3.mbn

<ID:0/003> rpm.mbn

<ID:0/003> aboot.mbn

<ID:0/003> FAIL! (Auth)

<OSM> All threads completed. (succeed 0 / failed 1)

This is on the device:

odin mode

product name: GT-I9505

Current Binary: Custom

System status: Official

Knox Kernel Lock: 0x0

Knox wrranty void: 0x1

csb-config-lsb: 0x30

write protection: enable

start (224,1440)

Sv rev. check fail: fused : 2, Binary : 1
[Galaxy S 4 Q&A, Help & Troubleshooting] samersh72:
Your bootloader is locked due to the update, you can not downgrade, flash stock BTU MH8 firmware, wipe after flashing.

Sent from my Galaxy
[Galaxy S 4 Q&A, Help & Troubleshooting] HANDSY:
Samersh72 is it possible to downgrade as long as you use a custom kernel. Is this because the bootloader is contained in the kernel?
[Galaxy S 4 Q&A, Help & Troubleshooting] samersh72:
the bootloader has other partition than the boot.img (kernel)

if you notice that all downgrading flash with odin stopped at "aboot" it is something to do with the bootloader

it will not allow you to flash the old bootloader

aboot -> /dev/block/mmcblk0p6

apnhlos -> /dev/block/mmcblk0p1

backup -> /dev/block/mmcblk0p23

boot -> /dev/block/mmcblk0p20

cache -> /dev/block/mmcblk0p18

carrier -> /dev/block/mmcblk0p28

efs -> /dev/block/mmcblk0p10

fota -> /dev/block/mmcblk0p22

fsg -> /dev/block/mmcblk0p24

hidden -> /dev/block/mmcblk0p27

m9kefs1 -> /dev/block/mmcblk0p13

m9kefs2 -> /dev/block/mmcblk0p14

m9kefs3 -> /dev/block/mmcblk0p15

mdm -> /dev/block/mmcblk0p2

modemst1 -> /dev/block/mmcblk0p11

modemst2 -> /dev/block/mmcblk0p12

pad -> /dev/block/mmcblk0p9

param -> /dev/block/mmcblk0p19

persdata -> /dev/block/mmcblk0p26

persist -> /dev/block/mmcblk0p17

recovery -> /dev/block/mmcblk0p21

rpm -> /dev/block/mmcblk0p7

sbl1 -> /dev/block/mmcblk0p3

sbl2 -> /dev/block/mmcblk0p4

sbl3 -> /dev/block/mmcblk0p5

ssd -> /dev/block/mmcblk0p25

system -> /dev/block/mmcblk0p16

tz -> /dev/block/mmcblk0p8

userdata -> /dev/block/mmcblk0p29
[Galaxy S 4 Q&A, Help & Troubleshooting] HANDSY:
Yes I've just read in another thread that the latest firmwares have a locked bootloader which may explain the failure when using Odin
[Galaxy S 4 Q&A, Help & Troubleshooting] Mysterioso:
Thanks a lot! That wrked out for me! The only thing i realized was that i cannot wipe the cache partition... It just cashes then and reboots.

And will i be able to perform Kies updates in the future?

Greets
[Galaxy S 4 Q&A, Help & Troubleshooting] samersh72:
if you have official status (see it in download mode) then yes.

i never use kies, i update with odin :D

regarding error in wiping cache partition, just ignore this bug.
[Galaxy S 4 Q&A, Help & Troubleshooting] Mysterioso:
Then it should work...

Well that's also an option :D

okay i will.

Thanks again!
[Galaxy S 4 Q&A, Help & Troubleshooting] apoferrari:
Same problem here.. I used OTA while pre-rooted on XEF-I9505XXUBMGA. I was lucky having all official. Now my phone is bricked (Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again.)

If i flash BTU MH8 then could i flash I9505XXUDMH6 (Greece)? Or should flash I9505XXUDMH6 directly. I bought it in Greece but it was imported from France with XEF-I9505XXUBMGA.

Thanks in advance :cowboy:
[Galaxy S 4 Q&A, Help & Troubleshooting] samersh72:
flash MH6
[Galaxy S 4 Q&A, Help & Troubleshooting] aboutmarkanthony:
0x1 = KNOX WARRANTY VOID

0x1 = KNOX WARRANTY VOID

means, YOU CANNOT INSTALL KNOX FOREVER. :crying:\

waiting for some workaround for this problem. :crying:
[Galaxy S 4 Q&A, Help & Troubleshooting] jake.levinez:
I got this same error while trying to flash the leaked pre rooted 4.3 I think, I have 0x30, is there any way to fix this? I really want 4.3
[Galaxy S 4 Q&A, Help & Troubleshooting] SiMBol10:
same issue

I had the exact same problem but from a different method. I had a CM10.1.3 stable build then tried CM10.2 nightlies and it ****ed up my phone, flashed stock samsung and that worked alright so I tried to get back to CM10.1.3 and then I tried to wipe cache and it crashed and from then its been having the problems explained. I've just sat for like 2-3 hours downloading the BTU MH8 firmware from sammobile and it hasn't worked either. If its EE shouldnt the latest EVR work? I tried it too and its the same. Any ideas??
[Galaxy S 4 Q&A, Help & Troubleshooting] xkip:
Is there any update about this problem? I've upgraded i9505 to 4.4.2 and is start reboots several times a day... Now I want to downgrade to 4.2.2 (MH6) and just can't flash it (aboot... Fail Auth...)

Everything is ok with Odin and USB cable, I can flash NG8 (4.4.2) easily...

So, it is kind of locked permanently?
[Optimus L3, L5, L7 General] 4Freedom:
Rooting method available for L3II L5,L5II,L7,L7II,L9,L9II​

Credits:

Masterkey exploit tool has been released by Saurik on http://cydiaimpactor.com all thanks to him.

I am not responsible for bricked devices, dead SD cards,
thermonuclear war, or you getting fired because the alarm app failed. Please
do some research if you have any concerns about features included in this ROM
before flashing it! YOU are choosing to make these modifications, and if
you point the finger at me for messing up your device, I will laugh at you.

Requirements:

Computer

USB Cable

Procedure:

Install latest LG Driver installed (available on LG website).

Enable Developer Options on you Android device.

Connect your device to the computer throught the USB cable.

Download Cydia Impactor from http://www.cydiaimpactor.com .

Extract the zip and run impactor.exe (with administrator right if you are on vista or later).

Click on start.

Wait some seconds

Reboot

Go to PlayStore and install SuperSu or get APK from ApkMirror

Tested Working on:

L5 E610 V20A 4.1.2

L5 E610 V20D 4.1.2

L7 P700 V20D 4.1.2

L7 P708 V20A 4.1.2

L9 P760 V10C 4.0.3

L9 P760 V10D 4.0.3

L9 P760 V20B 4.1.2

L9 P760 V20C 4.1.2

L9 P760 V20I 4.1.2

L9 P760 V20E 4.1.2

L9 P760 V20H 4.1.2

L9 P769 V20H 4.1.2

L5 II E460 V10I 4.1.2

L9 II D605 V10 A 4.1.2

Not Working on:

L5 E610 V20G or later

L7 P705G V20H or later

L7II P716 V10D or later

L9 P760 v20L or later

L9 P760 V20P

L5 E610 V20J

Recents updates:

Like some users reported LG fixed both masterkey exploit used by impactor to get root, so if you are running a recent firmware or you took an OTA this method may not work, impactor will return "SIGNATURE BUGS UNAVAILABLE"

Alternatives:

Look at Framaroot or TowelRoot
[Optimus L3, L5, L7 General] Azargardius:
Superuser dont work, the perm is added automaticly to all apps, the superuser not asking for perm, and root works allways in the phone, tested on l5
[Optimus L3, L5, L7 General] 4Freedom:
It's highly recommended to user SuperSU and not SuperUser because it has compatibility problems.
[Optimus L3, L5, L7 General] 4Freedom:
LG patched 2 masterkey bug on v20g firmware and newer.
[Optimus L3, L5, L7 General] karimovic44:
i Have this problem
[Optimus L3, L5, L7 General] 4Freedom:
reserved
[Optimus L3, L5, L7 General] piyushmehta24:
thanks dude ...it works!
[Optimus L3, L5, L7 General] 4Freedom:
Thanks for the reply, I'm grad.:good:
[Optimus L3, L5, L7 General] piercee85:
keep on sharing nice work
[Optimus L3, L5, L7 General] goliate:
merci

Merci beaucoup, aprés de nombreuse recherche je trouve enfin une solution qui fonctionne pour rooter mon LG5 en 4.1.2
[Optimus L3, L5, L7 General] mihotiho:
This didn't work for me, I get the same error as mentioned before "signature bugs unavailable".

I've tried to connect it in different modes but nothing works.
[Optimus L3, L5, L7 General] parkers-mod:
This is good for new users, or users who do not want to install another rom to root their phones, good work!

:))
[Optimus L3, L5, L7 General] 4Freedom:
Sorry but the most recent systems aren't supported.
[Optimus L3, L5, L7 General] UrielGT-X:
WooW! Thanks! Maybe i will use this method later.
[Optimus L3, L5, L7 General] osx_cm7:
How can I unlock bootloader?

How can I unlock bootloader after impactor root-method?
[Optimus L3, L5, L7 General] 4Freedom:
hi,

every phone has got different method,you can search in your phone thread
[Optimus L3, L5, L7 General] Azargardius:
I dont know wyh, but i cant root v20G second version, 1st version of v20G ofcourse it can be root, but 2nd 20G not with this program, the same problem like on posts
[Optimus L3, L5, L7 General] 4Freedom:
because lg patched masterkey exploit
[Optimus L3, L5, L7 General] 4Freedom:
New "impactor" update, new masterkey exploit added

now you should be able to root the v20g firmware

support for 4.1.2 and 4.0.3 should work also on l3,l3 II,l4,l5,l5 II,l7,l7 II and l9
[Optimus L3, L5, L7 General] bogyprh:
Thanks bro!!!!! You save my life with this work.
[Optimus L3, L5, L7 General] brokeny:
data save?

if i root my phone, my data is save right?
[Optimus L3, L5, L7 General] 4Freedom:
if you follow this method the answer is YESSSSSSS
[Optimus L3, L5, L7 General] magicw:
just rooted LG L5 II (E460) on latest SW version E46010I-EUR-XX with impactor - works like charm. :svetius:
[Optimus L3, L5, L7 General] eltavo:
im going to test it:good:
[Optimus L3, L5, L7 General] dachaz:
wow..great job..works like a charm..ty bro..
[Optimus L3, L5, L7 General] j0shyc0re:
Awesome this works great on my L7 P708 with 4.1.2 JB V20a
[Optimus L3, L5, L7 General] AntoITA:
hi Axd ! i'm italian too and i see that you made this working tutorial for all the L phone versions , i would like to know if you can help me with this phone : Lg E610v (vodafone branded) and try to root it , i'm new to the android world , so if you could help me it would be awesome , i have V10F right now, do you advise me to update it to the V20d (no brand) or g with KDZ like this man did : http://xdaforums.com/showpost.php?p=39255530&postcount=42 or stay with this version ? thanks again for your time :victory:
[Optimus L3, L5, L7 General] jancici:
hi

I did root my L9 II - D605 with 4.1.2 android and D60510a-EUR-XX software version.

I did follow your steps. I am using arch linux so downlaoded 64b version but after start Impactor from terminal I did get error "Segmentation fault (core dumped)" so then I did used windows XP.

my phone has root access, thank you
[Optimus L3, L5, L7 General] 4Freedom:
Yeahhh
[Optimus L3, L5, L7 General] eltavo:
im going to try it on my p708, thanks :D
[Optimus L3, L5, L7 General] jancici:
I am interesting to install busybox and root explorer. Please can you help me with that? point me to some thread where can I find more info?

thanks
[Optimus L3, L5, L7 General] magicw:
but this thread has all you need. Just follow instructions from OP to inject "su"-binaries into the system.

Then install superSU, rootexplorer, busybox and other root-stuff from playstore.
[Optimus L3, L5, L7 General] klaus76ro:
I confirm method described in post #1 here to be working flawless for a LG Optimus L5 II (E460).

thank you.
[Optimus L3, L5, L7 General] 4Freedom:
you must buy or download those 2 apps

install them

1.root explorer is a filemanager with root access, with this app(or others) you can copy/delete all system directory, the game data for example is saved in /data/data you can easy mod or backup it

2.busybox you can use unix command in terminal emulator and other apps:cowboy:

enjoy
[Optimus L3, L5, L7 General] 4Freedom:
Thanks Bro

Have a good day
[Optimus L3, L5, L7 General] Robot2345:
Try Framaroot, it's an apk compatible with both lg l7 and lg l5

---------- Post added at 07:01 PM ---------- Previous post was at 06:57 PM ----------

if you can't gain root permissions in this way
[Optimus L3, L5, L7 General] 4Freedom:
framaroot not work on l5 after stock update to v20d :( the same is for l7...
[Optimus L3, L5, L7 General] Exteel12:
Help me my bootloader is destroyed how to fix them i cant install cwm
[Optimus L3, L5, L7 General] 4Freedom:
what is your phone? is an LG?
[Optimus L3, L5, L7 General] Jaaguar86:
Working like a charm on my LG L9 P760, version V20h
[Optimus L3, L5, L7 General] Aleksejus:
LG Optimus L7 II p710

Hello there i'm trying to root my phone (LG Optimus L7 II p710) to fix my insufficient storage available error, but when i try this method do it step by step when it comes to clicking start, the last step, i click it: it says that it's testing and after about 5 seconds it gives me the error: Insufficient storage available... what do i do?
[Optimus L3, L5, L7 General] 4Freedom:
probably you havent free space on your memory(internal storage)

you can just delete something on your device and try again with cydiaimpactor else

if you think that it is an error of your system try to do an HARD RESET or FLASH your firmware with root from your pc using KDZ
[Optimus L3, L5, L7 General] Avamander:
Is this method working on LG L9 II?
[Optimus L3, L5, L7 General] 4Freedom:
yes bro it work also on l9 II until the firmware that lg blocked masterkey exploit :)
[Optimus L3, L5, L7 General] os008:
Just tried it on LG L5 II E-450, and I can confirm that it works. Thanks a lot :).
[Optimus L3, L5, L7 General] Robot2345:
but i got the root permissions in this way and i had v20d
[Optimus L3, L5, L7 General] 4Freedom:
i tried framaroot the last time 2 months ago and it said error...try an other exploit if avariable

i did the same on an l5 of my friend and it said the same :(

the two phone has 4.1.2 v20d no brand italy
[Optimus L3, L5, L7 General] ArjunrambZ:
Framaroot 1.5 version gives error but 1.4 works good for my l7
[Optimus L3, L5, L7 General] 4Freedom:
i didnt try the latest 1.7 but

i tried all framaroot versions and noone work on my l5 4.1.2 v20d
[Optimus L3, L5, L7 General] Ferorius:
Hey

Actualy after rooting my L9 II, all sites with google in them are closed for me... Can't even enter google play...:crying:

Gah... I deleted it, now everything works again!
[Optimus L3, L5, L7 General] 4Freedom:
your problem isnt connected with the rooting,maybe you used some apps or edit /etc/hosts or just disable account sync

what happened exactly?
[Optimus L3, L5, L7 General] tramp20:
Hi,

I will buy this model and root it of course.

Can someone tell me if the D605 can receive the russian Glonass satellites too?

LG Support says no, another user says yes (with a screen shot).

You can test it with https://play.google.com/store/apps/details?id=com.androits.gps.test.free

Thank you.
[Optimus L3, L5, L7 General] FedeeManchiini:
Thanks Man! Works Greats in L5 II :D
[Optimus L3, L5, L7 General] slipsystem:
Another problem might be tyour date and time, if its not set correctly it geys picked up as a security error.
[Optimus L3, L5, L7 General] ArjunrambZ:
about l5 ,i cant say anything,but surely it works for my l7 and this method works too,,,glad that we have many rooting optiins to try of
[Optimus L3, L5, L7 General] fable2:
thx for this method man
[Optimus L3, L5, L7 General] tramp20:
Thank you for your work to root the L9II D605.

But without CWM I do not buy this smartphone.

Is there a simple way to install CWM?
[Optimus L3, L5, L7 General] 4Freedom:
for optimus l5 yes, there are a lot of different secure ways to get CWM,

for optimus l9 you should search in l9 pages on xda
[Optimus L3, L5, L7 General] tramp20:
Fine, thank you.
[Optimus L3, L5, L7 General] 4Freedom:
if you have other question ask me:good:
[Optimus L3, L5, L7 General] tramp20:
Is there really a thread to get CWM for the D605 or should it be there?

I cannot find it.
[Optimus L3, L5, L7 General] 4Freedom:
Hello

If you want this recovery you must flash a firmware .kdz modded with KDZ SW or try RomManager app or copy its files throught android terminal

no thread about l9 II at today:p
[Optimus L3, L5, L7 General] tramp20:
Thank you, but this seems to be too high for me :(
[Optimus L3, L5, L7 General] PELUXA1:
P700/P705G V20H not working

Hi,

Flashed my P705G with the Orange V20H ROM, and sadly the program is not working. I get the "Signature bugs unavailable"...

Hope you get a workaround.

Thanks! :o
[Optimus L3, L5, L7 General] Murillo86:
my l7 is dead, does not display the logo ...
[Optimus L3, L5, L7 General] ArjunrambZ:
have you tried flashing with kdz?
[Optimus L3, L5, L7 General] Murillo86:
It does not work either, but do not worry I sold it for 30 €
[Optimus L3, L5, L7 General] 4Freedom:
sold a brick for 30€ wow

how did you break it?
[Optimus L3, L5, L7 General] george brown:
It also didn't detect my phone. (lg l7)
[Optimus L3, L5, L7 General] CCrack:
I don't think it's possible to root the new v20G, I tried
[Optimus L3, L5, L7 General] paolo3003:
v10d doesn't work

I've tried cdimpactor with LG 5 II with android 4.1.2 v.10d (In Italy brand TIM). I've installed drivers on Windows Vista, enable usb debug on the phone, but the program say : SIGNATURE BUGS UNAVAILABLE.

What can I do to root mu phone?
[Optimus L3, L5, L7 General] NmAa:
I have p705 and tried rooting it using framaroot and cdimpactor but got no luck with both, right now i'm still stucked with the stock... sluggishly waiting for help... huhu...

Behind those random bits of ones and zeros is still the Creator, the God Almighty. Proud to be Pinoy..
[Optimus L3, L5, L7 General] zodex:
THX for this good guide :)
[Optimus L3, L5, L7 General] 4Freedom:
because lg patched all avariable exploit

, with the last firmwares you MUST flash with kdz, there are NOT alternatives :(
[Optimus L3, L5, L7 General] Zurie_ma:
'more than one device' error

Hi there!

I am trying to root my LG L7 running on Android Jellybean. When i open the Impractor.exe and click on start, i get a 'more than one device' error. What could be the problem? Also could you kindly explain to me what is meant by install your phone's drivers in your PC.. I have the LG suite installed in my PC. Thanks
[Optimus L3, L5, L7 General] slipsystem:
It sounds to me that it is detecting 2 phones connected to your pc. Try adb devices and see that devices are in the list. If you have 2 then try adb stop and try inpactor again. If your device shows in adb then the correct drivers are installed.
[Optimus L3, L5, L7 General] Zurie_ma:
Thanks for your help. I installed adb and it shows my phone is listed plus another device emulator-5554. Tried to disconnect it from adb but its not. Impractor still says 'more than one device' I am realy confused!

:eek:
[Optimus L3, L5, L7 General] eteksen:
thanks.
[Optimus L3, L5, L7 General] aurion45:
I just purchase a LG Optimus L7 II P716, with Build JZ054X, Jellybean version 4.1.2, and P71610d-AUS-XX, and version V10d.

I've setup are the required post, install Impactor and 'signature bugs unavailable".

So how do you flash with "KDZ"?
[Optimus L3, L5, L7 General] atulkris:
Have you tried framaroot app

http://xdaforums.com/showthread.php?t=2130276

---------- Post added at 03:21 PM ---------- Previous post was at 03:15 PM ----------

Try framaroot:

xdaforums.com/showthread.php?t=2130276
[Optimus L3, L5, L7 General] 4Freedom:
framaroot not work after v20d update by lg

however cydia not work after v20g :(
[Optimus L3, L5, L7 General] 4Freedom:
follow this guide

http://xdaforums.com/showthread.php?t=2409308

download your firnware from lg-phone-firmware :)
[Optimus L3, L5, L7 General] aurion45:
Thanks, it does not work with "Framearoot" 1.9.1.

It work with flashing earlier version say v10a KDZ, but when I reflash it with the latest version been v10e it return to "unrooted".

I still want to keep the original LG software with the phone rooted.
[Optimus L3, L5, L7 General] srgg01:
Thanks a lot for this information!

Unfortunately I tested on L5 II (LG-E450G) and is not working.

Lets hope they continue this great work so more devices are supported
[Optimus L3, L5, L7 General] 4Freedom:
unfortunatly it is NOT possible :(

because these are exploit and there arent avariable masterkey bug after 4.2.2

however also device with older version are patched by official operator update.

this is not only for cydia but also for all other rooting software that follow software exploit!

to get root now you must flash a modded firmware or having an unlocked bootloader :)
[Optimus L3, L5, L7 General] dunadan2:
Thanks for share

---------- Post added at 04:18 PM ---------- Previous post was at 04:13 PM ----------

Thanks for share
[Optimus L3, L5, L7 General] hiiwa:
dont work on lg l9 ii d605 say "siganture bug unavaible" help
[Optimus L3, L5, L7 General] 4Freedom:
as i said a lot of times it dont work on new firmware.

signature bug unavariable means that the masterkey has been fixed:cowboy:
[Optimus L3, L5, L7 General] Kevinsillo:
[D605] Update with root

I am root in my LG L9 II and now I have a pending OTA update. Can I update system version with root or I have to do unroot to update? And how?

Thanks
[Optimus L3, L5, L7 General] 4Freedom:
you can upgrade but you will lose root

depend what you did after root.. for example if you have a recovery DONT upgrade.

unroot is unless because it remove only the root not your mods or something that you edited. to unroot you can use supersu and go into its setting or on play store there are a lot of apps to unroot too.

but remember unroot is UNLESS

to come back when you bought your phone you need to flash stock firmware from pc

:)
[Optimus L3, L5, L7 General] Kevinsillo:
I don't installed any recovery, only root with cydia impactor and install superuser, later uninstall and now install supersu. If I use OTA RootKeeper can I be root after updating?
[Optimus L3, L5, L7 General] 4Freedom:
the problem is that after update you will lose root but you will lose also the exploit to root so you cant root again with impactor.

i am note sure about ota rootkeeper

depends from phone to phone and from firmware to firmware
[Optimus L3, L5, L7 General] Kevinsillo:
Ok Thank you very much. Then I stay in the actual version, because is very good.
[Optimus L3, L5, L7 General] 4Freedom:
lg usually release a lot of little updates to fix exploit or add new features

RARELY they upgrade android version :/

on my phone it happened only 1 time from 4.0.3 to 4.1.2

now i am on cyanogenmod and i havent to wait lg, and with cwm i am able to backup all system.

i hope cm will arrive on your phone soon :)
[Optimus L3, L5, L7 General] Kevinsillo:
I searched and the new version for L9 II is v20c (Vodafone Spain). Is a KitKat version with a new function... "knock on" (turn on screen with touch screen).
[Optimus L3, L5, L7 General] zverxy:
Hello, I have LG optimus l9 2 (d605), and it has knock on function, so I can turn it of but it want turn on. sory for my bad english ;).

Im trying to root this phone, try few ways but still nothing, anybody can help?

or any question about the phone I will answer.
[Optimus L3, L5, L7 General] vaikz:
There's an L9 dedicated thread for your device, ask there.
[Optimus L3, L5, L7 General] zverxy:
Hi,

Knock function is working,

but I cant root it, I try many ways
[Optimus L3, L5, L7 General] eta82:
Flashed my L5 with V20J ROM, and sadly the program is not working. I get the "Signature bugs unavailable"...
[Optimus L3, L5, L7 General] 4Freedom:
New exploit

try this!

http://xdaforums.com/showthread.php?t=2784392