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Hi, i'm trying to root my stock LG Optimus 2X v20d Gingerbread with this: http://forum.xda-developers.com/showthread.php?t=1327599
I'm unable to connect to the computer in APX-mode. I tried connecting to the CPU at the front and the back (port on the motherboard) and whenever i tried to connect my Optimus 2X, nothing happens when i pressed both vol up+down when connecting to computer. I've been disconnecting and connecting the USB device over and over again but to no avail. Tried switching out the USB cables also did not work. No prompt to install the drivers appeared. I'm also unable to find any APX-related devices in Device Manager.
I have tried to list hidden devices in Device Manager to check if there's any APX-related drivers too, but still, to no avail.
I'm really out of ideas here. Can anyone help?
[EDIT] To add-on, i previously used MIUI before reverting back to stock froyo and then upgraded to stock gingerbread via LG's update tool. The reason is, my computer won't detect my MIUI in USB storage mode, but i remember that my MIUI'd Optimus 2X did connect to the computer as APX-mode before.
Did you remove the battery first? Won't work unless you do.
TrymHansen said:
Did you remove the battery first? Won't work unless you do.
Click to expand...
Click to collapse
Yes i did. I took out everything (battery, sdcard, simcard).
but i remember that my MIUI'd Optimus 2X did connect to the computer as APX-mode before.
Click to expand...
Click to collapse
This should mean that the APX-driver already is installed, so in theory you should be able to skip step 2.
If however there's no "NVIDIA USB Boot-recovery driver for Mobile devices"-device visible then indeed APX-mode is not recognized.
Just to make sure you can try to do it on another computer and see if that registers an unknown device. If it does not, then well, something is broken.
Problem solved, rooted!
Woah, i nearly gave up until i decided to gave one last try to root this phone today. It worked!
Turns out that the connecting at the front works too (well, at least for me). This time, i only took out the battery (left the simcard/sdcard) in the phone and connected the USB cable to the O2X, and a pop up on APX appeared!
So i want my original rom back and i want to use the SmartFLash method .
i did everything but when i plug the phone the com port is not filled ... what can i do ?
i tried to do the operation from another pc with APX driver but it was the same
any solutions?
CHEERS
did you hold the volume down button while plugging the usb cable into the mobile phone? did the pc report any usb device plugged in and what was going on with the mobiles display, did it show s/w updating or just the logo?
PsychoPod said:
did you hold the volume down button while plugging the usb cable into the mobile phone? did the pc report any usb device plugged in and what was going on with the mobiles display, did it show s/w updating or just the logo?
Click to expand...
Click to collapse
i hold vol down , the pc didn't report any usb device but the s/w updating it was showing on my display ... when the phone was plugged I entered in device manager and i saw something like : Others devices : Unknown device ...
did you install the apx drivers?
when i hold vol down and i plug usb the APX didn't appear. when i hold vol down + up and plug usb the apx driver appears and i installed it but let me say something
my current version is P999 and in SmartFlash it is saying : version p990
is this a problem ?
the problem is you cant install stuff from a p999 on a p990, tho the phone itself is the same, the partitions are different, if you succeeed in flashing your phone never try that again, at least thru nvflash, as soon as you get your phone going my advice is never flash anything if it isnt with cwm...
as for flashing it, as i told you the same thing happened to me, and i had to flash it from another pc, it wasnt easy tho because i had to insist lots and lots of times auntil i finaly succeeded because the phone wasnt recognised and or failed to flash most times
Hi there, I'm new here but I have been following this forum for a long time.
Here's my problem:
I own a LGP990 with DJANGO rom. apart from the random stuck in the DJANGO loading screen which required me to reinstall it, it was all working fine.
Until yesterday, when I plugged it to recharge. The battery charged for a while and then got stuck for hours when almost done.
I unplugged it and try to turn it on but since that moment it always gets stuck at LG logo screen and when plugged it doesn't display any battery charging. I then tried to start recovery to reinstall from zip as I did every time it got stuck in the django loading screen, but recovery does not start.
No problem, I thought, lets smartflash/nvflash a stock rom and i'm good to go. Wrong, the phone won't even get recognized by windows, though I installed the driver several times (disabling driver signature as well) and running it as admin; i tried different driver versions, different usb cables... It does not even play that background sound when plugging usb devices...
I'm using windows 7 32bit.
That's it, I have ran out of ideas... anyone got one? (besides sending it to assistance, since warranty is voided)
little edit: whenever i plug the battery the phone start by itself!
gaernik said:
Hi there, I'm new here but I have been following this forum for a long time.
Here's my problem:
I own a LGP990 with DJANGO rom. apart from the random stuck in the DJANGO loading screen which required me to reinstall it, it was all working fine.
Until yesterday, when I plugged it to recharge. The battery charged for a while and then got stuck for hours when almost done.
I unplugged it and try to turn it on but since that moment it always gets stuck at LG logo screen and when plugged it doesn't display any battery charging. I then tried to start recovery to reinstall from zip as I did every time it got stuck in the django loading screen, but recovery does not start.
No problem, I thought, lets smartflash/nvflash a stock rom and i'm good to go. Wrong, the phone won't even get recognized by windows, though I installed the driver several times (disabling driver signature as well) and running it as admin; i tried different driver versions, different usb cables... It does not even play that background sound when plugging usb devices...
I'm using windows 7 32bit.
That's it, I have ran out of ideas... anyone got one? (besides sending it to assistance, since warranty is voided)
little edit: whenever i plug the battery the phone start by itself!
Click to expand...
Click to collapse
thats an issue I had, power button is making funny games, to enter recovery keep the vol- button pressed before you return the battery.
It always worked for me. let me know if it works.
this is what u have to do man...
http://www.ibtimes.co.uk/articles/40...timus-p990.htm
http://androidadvices.com/unbrick-lg...hone-tutorial/
http://progmaq.es/cm10/progmaq-defau...10-20121105.7z
http://progmaq.es/cm10/progmaq-defau...10-20121105.7z
The flasher with NVFlash clears all memory, including the Internal SD., so make a backup if u can..
Download this file: http://bayfiles.com/file/yKZL/eGZ31A/driver.rar The pack includes the APX driver (folder driver)
http://www.putlocker.com/file/4CEDEB7E0893B6F1
1.- Remove the battery to the phone.
2.- Press and hold Vol- and Vol+ and without releasing the 2 keys connect the USB cable to the PC
3.- Go to the progmaq-default-cm-10-20121105 folder and run flash icon... folow instruction., wait wait wait Enjoy!
massimo69 said:
thats an issue I had, power button is making funny games, to enter recovery keep the vol- button pressed before you return the battery.
It always worked for me. let me know if it works.
Click to expand...
Click to collapse
what do you mean before you return the battery? i kept vol- button before removing and then plugging it to the usb but still not detecting
interr said:
The flasher with NVFlash clears all memory, including the Internal SD., so make a backup if u can..
Download this file: The pack includes the APX driver (folder driver)
1.- Remove the battery to the phone.
2.- Press and hold Vol- and Vol+ and without releasing the 2 keys connect the USB cable to the PC
3.- Go to the progmaq-default-cm-10-20121105 folder and run flash icon... folow instruction., wait wait wait Enjoy!
Click to expand...
Click to collapse
4/6 of your link are broken dude
gaernik said:
what do you mean before you return the battery? i kept vol- button before removing and then plugging it to the usb but still not detecting
Click to expand...
Click to collapse
I meant to enter recovery. If your phone turns on when you put in the battery, the power button is stuck in a connected position so to enter recovery remove the battery, press the vol- and then insert the battery. If you get your phone to enter recovery and reflash the rom I will tell you what to try to fix the issue.
1.)remove battery
2.)press volume - and volume +
3.)connect phone to pc via usb
4.)download apx driver
5.)(go to device manager install manually apx driver, select the folder where you downloaded and extracted apx ini driver file
6.)flash using nvflash
7.)enjoy.
massimo69 said:
I meant to enter recovery. If your phone turns on when you put in the battery, the power button is stuck in a connected position so to enter recovery remove the battery, press the vol- and then insert the battery. If you get your phone to enter recovery and reflash the rom I will tell you what to try to fix the issue.
Click to expand...
Click to collapse
doing as you said brings me to the "s/w upgrading" screen, not into recovery
wawyed said:
1.)remove battery
2.)press volume - and volume +
3.)connect phone to pc via usb
4.)download apx driver
5.)(go to device manager install manually apx driver, select the folder where you downloaded and extracted apx ini driver file
6.)flash using nvflash
7.)enjoy.
Click to expand...
Click to collapse
problem is that nvflash says "no usb device found" and phone does not appear in device manager
gaernik said:
doing as you said brings me to the "s/w upgrading" screen, not into recovery
Click to expand...
Click to collapse
thats because you have your usb connected
massimo69 said:
thats because you have your usb connected
Click to expand...
Click to collapse
it says so even with usb disconnected :|
gaernik said:
it says so even with usb disconnected :|
Click to expand...
Click to collapse
Then use the AIO toolkit to smartflash a new rom
massimo69 said:
Then use the AIO toolkit to smartflash a new rom
Click to expand...
Click to collapse
as I said earlier, nvflash/aio toolkit give me a "usb device not found" error
gaernik said:
doing as you said brings me to the "s/w upgrading" screen, not into recovery
problem is that nvflash says "no usb device found" and phone does not appear in device manager
Click to expand...
Click to collapse
if you can enter s/w upgrading then you can use smartflash to flash a new rom.
gaernik said:
as I said earlier, nvflash/aio toolkit give me a "usb device not found" error
Click to expand...
Click to collapse
in AIO you have an option to smartflash roms not nvflash. You need to unpack a KDZ rom and install the ROM via smartflash
all the instructions are in the op of the AIO toolkit
the problem still remains, no phone detected and no com port appears in smartflash...
gaernik said:
the problem still remains, no phone detected and no com port appears in smartflash...
Click to expand...
Click to collapse
mmmmhhhhh..... change usb port, change cable, reinstall the drivers. other than that I am at loss
AIO tool has an option to install Nvflash driver. Its the last option in a different color.
Or you could try to reinstall LG driver. I just downloaded the latest driver from lg support tool today. It works fine.
And be noted that you have to hold down both volume up and down while plugging the USB cable to enter nvflash mode. Holding vol down while plugging the cable in will enter boot loader mode which is not the same thing. Remember to remove the battery first of all.
Sent from my LG-P990 using xda premium
massimo69 said:
mmmmhhhhh..... change usb port, change cable, reinstall the drivers. other than that I am at loss
Click to expand...
Click to collapse
done all of that, nothing worked...
mintjustin said:
AIO tool has an option to install Nvflash driver. Its the last option in a different color.
Or you could try to reinstall LG driver. I just downloaded the latest driver from lg support tool today. It works fine.
And be noted that you have to hold down both volume up and down while plugging the USB cable to enter nvflash mode. Holding vol down while plugging the cable in will enter boot loader mode which is not the same thing. Remember to remove the battery first of all.
Sent from my LG-P990 using xda premium
Click to expand...
Click to collapse
installed the driver from support tool but still cant get it recognized neither by smartflash nor nvflash
http://www.ibtimes.co.uk/articles/408044/20121124/unbrick-tool-lg-optimus-p990.htm
http://androidadvices.com/unbrick-lg-optimus-2x-p990-android-phone-tutorial/
http://progmaq.es/cm10/progmaq-default-cm-10-20121105.7z
http://progmaq.es/cm10/progmaq-default-cm-10-20121105.7z
The flasher with NVFlash clears all memory, including the Internal SD., so make a backup if u can..
Download this file: http://bayfiles.com/file/yKZL/eGZ31A/driver.rar The pack includes the APX driver (folder driver) and install the drivers
http://www.putlocker.com/file/4CEDEB7E0893B6F1
1.- Remove the battery to the phone.
2.- Press and hold Vol- and Vol+ and without releasing the 2 keys connect the USB cable to the PC
3.- Go to the progmaq-default-cm-10-20121105 folder and run flash icon... folow instruction., wait wait wait Enjoy!
guys I appreciate all your help but nothing worked. still windows does not detect it, I even plugged to a pc that used to see it :|
lg optimus 2x ics root
gaernik said:
guys I appreciate all your help but nothing worked. still windows does not detect it, I even plugged to a pc that used to see it :|
Click to expand...
Click to collapse
hey...ur problem solved??
Hello people
I'm new here, in terms of asking questions and seeking help
I have the LG Optimus P970
A few days ago I made the update to ICS, and by proceeding with this page, hackmyandroid.com/optimus-black-p970-official-ics-update/3299
After that, not impossible to connect the phone to a PC, even the software update mode, it can not recognize, anyway to connect it just throws a slow charging.
Is there someone who knows what it is.
I'd love to go back to the old software, but there is no way to detect it pc
Sorry for my bad english
Thanks in advance
I forgot to say, before the update, and my computer still recognize the phone, connecting it over sony usb cable, now it is no longer recognized by the Sony USB cable, and I do not have original LG USB cable.
Perhaps this is the reason why a computer will not recognize the phone
edzunic said:
I forgot to say, before the update, and my computer still recognize the phone, connecting it over sony usb cable, now it is no longer recognized by the Sony USB cable, and I do not have original LG USB cable.
Perhaps this is the reason why a computer will not recognize the phone
Click to expand...
Click to collapse
Your problem can be the non original cable or........reinstall the drivers and try again
Enviado desde mi LG-P970 usando Tapatalk 2
ferhpsquad said:
Your problem can be the non original cable or........reinstall the drivers and try again
Enviado desde mi LG-P970 usando Tapatalk 2
Click to expand...
Click to collapse
I have the original cable, but still the same problem.
I have all drivers installed, I can transfer files between the phone and the pc, I can use the LG suite,
But I can't see my phone on the ADB console, I can't use smartflashtool cause the phone isn't recoginized.
yesterday I tried with lg cable, and wall charger, in both cases, said slow charging the battery, I tried on three different computers, I tried to reinstall the drivers, like the software blocked communication with the phone, just charge the battery.
If there was a way to put the software through SD card, it might solve the problem.
even the software update mode, the computer does not see the phone
Bro! For the softwaretool like smartflash, You need to boot into download mode i.e., You need to switch off the phone, plug in the USB cable connected to the PC and instantly press the volume up button. Then the tool will recognise Your phone. Try it and check once!
I tried it, nothing happens,
I go to download mode, but computer does not recognize it again
behaves as if the port is destroyed
edzunic said:
I tried it, nothing happens,
I go to download mode, but computer does not recognize it again
behaves as if the port is destroyed
Click to expand...
Click to collapse
Try to boot your PC with disabled driver signatures, or use a 32bit windows system.
try entering download-mode the following way:
disconnect your phone from pc
remove battery
press and hold Vol-up
connect the usb-cable (still without battery)
Now the phone should be detected as a serial-cable device an you can use the smart flash tool.
would have to be sound,
no sound when I connect the phone to the PC
Solved my problem.
Seems like windows automatically installs driver to the phone, but it partially works.
Unistall all drivers for the phone, or try on a new computer.
Plug the phone and cancel the driver search by windows
Install drivers for LG (unplug the phone before)
Turn it off
Plug the cable and enter download mode
And there is the phone recognized on smartflashtool.
I'm flashing a new one right now, thank you.
You do not understand the problem
there's no sign, no sound when I connect the phone to a computer, any computer, drivers were or were not.
As if something in the phone blocked communication between the PC and phone
edzunic said:
You do not understand the problem
there's no sign, no sound when I connect the phone to a computer, any computer, drivers were or were not.
As if something in the phone blocked communication between the PC and phone
Click to expand...
Click to collapse
I got same problem.
bollix said:
I got same problem.
Click to expand...
Click to collapse
add me!
Connection Problem with Mackay 2.999
Hey Guys,
first of all, sorry for my not so good English
I'am at Mackay 2.999 with last Kernel of his build and can't connect the Phone to the Computer.
It only install the LGE Mobile Composite USB Device, the LGE Mobile USB Serial Port and the LGE Mobile USB Modem on connecting to the Workstation.
I had test it on many Computers but the Problem is all the same: I can't get on my Memory or ADB.
I also had testet all modes under the setting point (MTP/PTP/mass storage device) and with debbuging on and off.
On my Workstation is the Last Version of ADB (1.0.31) installed.
Did anyone know the problem?
Did no one know a result to this problem
Hmmm my PC also can't read my storage what I did is go to cwm and plugged in usb cable and pressed mount storage it seems to solve my problem. I also did a cache and dalvik cache wipe.
Hey, I have found the result to this problem. You must flash another Baseband. Use from Nooby the V30 Baseband and it is solved.
Gruß Ernst
via Tapatalk 2
but how to flash, when can´t connect to pc
lg optimus
hi frendz ,
please help me out
i'm using lg optimus p970..last night my phone memory get full and mobile get turn off ..now it wont turn on even battery is fully charged...only LG logo shows nithing else...
Hy guys , i have the same problem . I updated to 4.4.2 Nameless ROM and i can't connect my phone to pc . The only action that it's done : charging the phone and that's all . I tried connecting to another pc but with no result . An error appeared :" LGE USB Device - No driver found " .Before 4.4.2 i had 4.1.2 from CyanogenMod and with that ROM i had no problem connecting the phone to the pc . Any help ?
Well My sister and her boyfriend were trying something whit her phone, I dont have a clue what the hell they were trying, at the end of the day, she comes to me with her LG P970H with the screen S/W Upgrade please wait while upgrading.
I try to Connect the Phone to the PC with the battery and The Pc makes a Sound and says that the USB is not recognized.
I connect the Phone without Battery And the same happens, Sound and not recognized.
Connect Pressing the Vol - , Same happens
Connect Pressing the Vol + Same Happens
Connect Pressing the both buttons with and without the battery Same Happens.
Allright then its the drivers, I go Ahead and download the Lasted Usb Drivers from LG, Try again and nothing new happen.
Download some Old Usb Drivers, Same thing nothing new happens.
Why and When does the S/W upgrade Please wait while upgrading screen appears. I think I can install another OS or make a Hard reset on the Phone if i can get the PC to Detect it. Its not the Cable and its not the PC. Tried 3 diferent cables and 2 pcs and a Macbookpro. I live in mexico and im phone company its TELCEL if that helps.
It appears as soon as i turn on the phone.
PD: please if you know what im dealing with , write the answer for dumb people like me, its hard to know what you are talking about when using names like ST, KDZ and stuff and english its not my mother languaje so dumb it for me. THX!
You must read this.
And you need the bin and fls from KDZ to extract and root your device(if you want it rooted). Since here you should look for yourself.
A soft reset is keep pushing Vol+ + Power for 5 secs.
Mexickano said:
You must read this.
And you need the bin and fls from KDZ to extract and root your device(if you want it rooted). Since here you should look for yourself.
A soft reset is keep pushing Vol+ + Power for 5 secs.
Click to expand...
Click to collapse
That wont Work, I already tried the SF, and it wont detect the Phone, Theres no Comunication Driver.
chulex67 said:
That wont Work, I already tried the SF, and it wont detect the Phone, Theres no Comunication Driver.
Click to expand...
Click to collapse
Ok, the phone was rooted?, Did you tried the soft reset?, Have you removed the battery and turn it off by 5 mins.(not necessary 5 mins but just an aproximate)?
Mexickano said:
Ok, the phone was rooted?, Did you tried the soft reset?, Have you removed the battery and turn it off by 5 mins.(not necessary 5 mins but just an aproximate)?
Click to expand...
Click to collapse
I think the phone was rooted i really dont know i think they were trying to update the system. I tried the Soft Reset Nothing happens, I think its not charging anymore it will only turn on when i connect the Usb cable. I tried removing the battery for 10 mins and tried again all steps. My Problem its that the pc Detects that theres an Usb, but it wont recognize it.
After i plug in the usb cable to the phone and i disconect it, it will remain with S/W upgrade screen for a few seconds before turning itself off. I cant turn it on by the power button.
chulex67 said:
I think the phone was rooted i really dont know i think they were trying to update the system. I tried the Soft Reset Nothing happens, I think its not charging anymore it will only turn on when i connect the Usb cable. I tried removing the battery for 10 mins and tried again all steps. My Problem its that the pc Detects that theres an Usb, but it wont recognize it.
After i plug in the usb cable to the phone and i disconect it, it will remain with S/W upgrade screen for a few seconds before turning itself off. I cant turn it on by the power button.
Click to expand...
Click to collapse
And sft does not work? Eventhough your phone is in SW mode already?
Sent from my LG-P760 using xda app-developers app
N00BY0815 said:
And sft does not work? Eventhough your phone is in SW mode already?
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
Yeah, I mean, the only freaking thing that wont work its that my pc and laptop detect when i connect the Cable to the phone, but it Wont Recognize The Usb and when i enter the SFT theres no Communication Driver. Like i said i have downloaded old and new ones Usb Drivers for the LG but it still wont detect it.
chulex67 said:
Yeah, I mean, the only freaking thing that wont work its that my pc and laptop detect when i connect the Cable to the phone, but it Wont Recognize The Usb and when i enter the SFT theres no Communication Driver. Like i said i have downloaded old and new ones Usb Drivers for the LG but it still wont detect it.
Click to expand...
Click to collapse
And if you connect it to the PC normally?
Does your device manager show nothing at all, or does it maybe show unknown devices and you only have to install the drivers manually?
Sent from my LG-P760 using xda app-developers app
N00BY0815 said:
And if you connect it to the PC normally?
Does your device manager show nothing at all, or does it maybe show unknown devices and you only have to install the drivers manually?
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
I had similar Problem when using a 64bit-os. if so, try to reboot with disabled check for Driver-signature.
Just press F8 during bootup. if you get a promt fo selecting boot-device, press enter and quickly hit F8 again.
when System is booted remove the Batterie, press and hold vol+ and connect to usb (Batterie is still removed)
now my OB was detected with S/W Upgrade Mode
N00BY0815 said:
And if you connect it to the PC normally?
Does your device manager show nothing at all, or does it maybe show unknown devices and you only have to install the drivers manually?
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
It says Usb Device Not Recognized, Unknown Device, One of the Usb Devices has Malfunctioned and Windows Does not Recognize it.
I have tried to Install Usb Drivers and everything and The pc Still Recognize the Phone. The SFT has no comunication Device because the pc its not recognizing the usb so i cant do ****. xD
Z3Rr0_C0ol said:
I had similar Problem when using a 64bit-os. if so, try to reboot with disabled check for Driver-signature.
Just press F8 during bootup. if you get a promt fo selecting boot-device, press enter and quickly hit F8 again.
when System is booted remove the Batterie, press and hold vol+ and connect to usb (Batterie is still removed)
now my OB was detected with S/W Upgrade Mode
Click to expand...
Click to collapse
Nope, Didnt work i even uninstalled the Drivers and Reinstalled both old and new usb drivers for the phone and rebooted each time to see if it worked. Same problem. Dont know if this is important but the S/W update screen appears without pressing the Vol+ or Vol - or both.
chulex67 said:
Nope, Didnt work i even uninstalled the Drivers and Reinstalled both old and new usb drivers for the phone and rebooted each time to see if it worked. ...
Click to expand...
Click to collapse
Are You sure you disabled Driver Signature Enforcement.
this must be done every reboot you do or your phone will not be recognized in S/W Upgrade Mode. After flashing with SFT it is not needed. Only for flashing in S/W Upgrade Mode.
The currently available drivers work fine with x64...
I never used SFT on x86, and I never had a problem. I didn't even need to disable driver's signature enforcement, ever.
What's weird here is that his phone boots in to S/W upgrade mode without any key press. It seems to me that now you got there a flashlight...lol