Lgp990 stuck at logo screen, not detected by windows - LG Optimus 2x

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??

Related

COM port SMARTFLASH problem

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

[Q] Completely bricked or salvageable?

Hey there,
Just today I decided to download a new ROM for my LG Optimus 2x. I tried to install the ParanoidAndroid CM10 ROM via the CWM Recovery. (place files on SD card, reboot in recovery, wipe, install) But I accidentaly installed the version for the new bootloader instead of the old bootloader which I still have. So needless to say, that didn't work and I was stuck with a boot loop, the phone didn't get passed the LG animation screen. So I figured out that I needed the older bootloader version. I downloaded it, put it on my SD and tried to boot into CWM Recovery... nothing. It did not catch the Power + Volume-down combination and instead just continues its regular boot-loop with the LG animation.
I had flashed a ROM with nvflash before, so I installed the drivers (I tried this step on 2 PC's mind you) and put the phone in the desired state (battery out, usb cable connected, press volume-up and volume-down for a short while). But to my surprise, my computer did not recognise the phone. It doesn't even see it connected or anything! I did install the LG Mobile drivers beforehand, if that makes any difference, but nothing changed the situation, I couldn't get my PC to recognise my phone in NVFlash mode.
Okay. I'm a though guy so I figured I could still try and use the Smartflash method. So I install the drivers necessary, hook my phone up with the battery removed, hold the volume down-key and I see the "Upgrading software" screen, good! But again my computer did not recognise my phone just a little bit. It doesn't show up in the device manager and neither do I have an option to install additional drivers.
I'm baffled by all this since I did not think one ****-up would brick(?) my phone this bad. Is there any way that I could just get it working again? For now I really don't care what ROM version I have to install, I just want it functional again
Thanks!
Andorenan said:
Hey there,
It doesn't show up in the device manager and neither do I have an option to install additional drivers.
Thanks!
Click to expand...
Click to collapse
LG O2X is 99.99999999% is un brickable.....have you tried the AIOT kit by Sprosk or the Nvflash stuff by Progmaq....
In addition tho this: partitions changed normally with nvflash method.....is it done through CWM?
SREEPRAJAY said:
LG O2X is 99.99999999% is un brickable.....have you tried the AIOT kit by Sprosk or the Nvflash stuff by Progmaq....
In addition tho this: partitions changed normally with nvflash method.....is it done through CWM?
Click to expand...
Click to collapse
I did. I tried both the nvflash stuff and the smartflash method. But somehow my computer does not recognise the device while it's plugged in. It doesn't even see that something is plugged in.
I'm sorry but I'm not sure what you mean with the partitions changing through CWM. Could you please elaborate on that?
Andorenan said:
I did. I tried both the nvflash stuff and the smartflash method. But somehow my computer does not recognise the device while it's plugged in. It doesn't even see that something is plugged in.
I'm sorry but I'm not sure what you mean with the partitions changing through CWM. Could you please elaborate on that?
Click to expand...
Click to collapse
the old and new bootloader are different in partition layout and the size of partitions....this can be done through only the nvflash method, or kdz method.
look at the AIOT tool kit thread opening post for more information.....
The ROMs which are based on the old boot loaders are not compatible with the new bootloader.....vice versa
-have you tried to change your USB cable?
-tried changing the USB ports?
-using win8, then you need to do it differently.....so check that too
-try using ports directly connected to motherboard....not through any USB hubs
Hope this helps you
Andorenan said:
I had flashed a ROM with nvflash before, so I installed the drivers (I tried this step on 2 PC's mind you) and put the phone in the desired state (battery out, usb cable connected, press volume-up and volume-down for a short while). But to my surprise, my computer did not recognise the phone. It doesn't even see it connected or anything!.
Click to expand...
Click to collapse
Make sure you are pressing and holding both volume keys while you are plugging the USB cable in. Pressing them after plugging the cable in will not put the phone into APX mode.
Sent from my LG-P990 using Tapatalk 2

Update failed - black screen!

I tried to update my LG P880 with LGMobile support tool yesterday.
After connecting the phone, I clicked on Start updating. A window popped up, telling me that it was downloading.
When it came to the update part, it lost connection with the phone. I did exactly as it said I should do (unplug, take out battery and put in in again, turn on the phone and connect it to the pc), and it restarted with the updating.
On about the same point as last time, the pc lost the connection with the phone. I did the same as last time, but now, the phone just doesn't boots into the S/W update screen.
The phone is NOT booting, NOT working to flash kdz, and it is NOT detectet as a phone, neither by the pc nor the LGMobile support tool, but my pc detects a device called APX when I connect the phone to the pc.
What can I do? And what is wrong?
Do this http://forum.xda-developers.com/showthread.php?t=2069723
erst said:
I tried to update my LG P880 with LGMobile support tool yesterday.
After connecting the phone, I clicked on Start updating. A window popped up, telling me that it was downloading.
When it came to the update part, it lost connection with the phone. I did exactly as it said I should do (unplug, take out battery and put in in again, turn on the phone and connect it to the pc), and it restarted with the updating.
On about the same point as last time, the pc lost the connection with the phone. I did the same as last time, but now, the phone just doesn't boots into the S/W update screen.
My pc detects a device called APX when I connect it to the pc, but the LGMobile support tool doesn't recognize the phone.
What can I do? And what is wrong?
Click to expand...
Click to collapse
LGMobile support tool needs the phone to be in normal mode (generaly...).
No SW or other, just turn ON your phone and connect it to PC.
Stanley- said:
Do this http://forum.xda-developers.com/showthread.php?t=2069723
Click to expand...
Click to collapse
When I try to connect the phone, by pressing vol down, I am not getting the S/W Upgrade screen.
erst said:
When I try to connect the phone, by pressing vol down, I am not getting the S/W Upgrade screen.
Click to expand...
Click to collapse
Take out the battery, wait 30 sec. and put it back, press vol- and connect to PC while pressing.
Nothing is working
I don't get the SW upgrade screen when connecting to PC, the phone is an "Unknown device" og named APX under device manager, and the KDZ program cannot find the device.
Is it any other tings I can try?
so if its apx, you can simple flash it via APX mode with nvflash, right ?
(i remember when i rooting my Optimus 2X via APX , that flashed prerooted system.img... so you can try this method)
erst said:
Nothing is working
I don't get the SW upgrade screen when connecting to PC, the phone is an "Unknown device" og named APX under device manager, and the KDZ program cannot find the device.
Is it any other tings I can try?
Click to expand...
Click to collapse
Out of ideas... you can try to use the official lgmobile tool and use the emergency mode to recover it...
mmm273 said:
so if its apx, you can simple flash it via APX mode with nvflash, right ?
(i remember when i rooting my Optimus 2X via APX , that flashed prerooted system.img... so you can try this method)
Click to expand...
Click to collapse
Do you have a link to a guide or something?
RuedasLocas said:
Out of ideas... you can try to use the official lgmobile tool and use the emergency mode to recover it...
Click to expand...
Click to collapse
No. That just leads me to the LG Mobile Support tool, and it can't do anything.
Did you try to get SW upgrade with battery in? (I had the same problem)
Yes.
I have tried both with the battry in the phone and taken it out
erst said:
Yes.
I have tried both with the battry in the phone and taken it out
Click to expand...
Click to collapse
So what happened with your phone- do u get lg icon and charging indicator when u connect phone?
did u try lg flash tool - i know it needs usb serial port but just try and after all ports ready disconnect phone for 3-5 sec and reconnect -maybe the tool will feel it this way - i'm trying to get manual copy of of that lge usb serial port driver but its not working well on win7 64 i think it'll be easier on xp- if so try to update this APX driver to lge cdma usb serial manually and tryflash tool on it
also the flash tool has board dl option u might try
when connecting phone turned off here i can get some adbs drivers one of them is adb anroidnet usb serial port - the problem is when charging note dissapear(display turned off) its gone and i've to repress power button normal press to get it again
future81 said:
So what happened with your phone- do u get lg icon and charging indicator when u connect phone?
Click to expand...
Click to collapse
I got nothing when I plugged it in.
Anyway, I have sent it in to the place I bought it from, to get a new one.
Thanks for all the help you have given me here, but you don't need to try to help me more

[Q] Optimus 4X HD full brick

I tried to put the CM10 on my phone, after installing the zip in recovery mode, I rebooted the device and it never returned to start. Does not show a single light. Do not enter in any way with any combination. When I connect by usb the only thing that appears in device manager is "apx device." Already tried so many things and nothing worked.
anyone have any idea what's going on?
by the way, I tried a lot here in xda before opening a thread.
is your bl unlocked?
Rudjgaard said:
is your bl unlocked?
Click to expand...
Click to collapse
yes
does it vibrate? does it turn on? can you control it through adb? can you enter sw mode?
Rudjgaard said:
does it vibrate? does it turn on? can you control it through adb? can you enter sw mode?
Click to expand...
Click to collapse
No, no, no and no. the only sign of life when it is connected to the pc. Appears "apx" in device manager.
Yeah you are in apx mode, which is basically the boot section of the nvidia tegra chipset.
You should be able to boot normally by unplugging the phone, remove battery for a few seconds, reinsert and hold power button for about 10 seconds
Also try holding power and vol+ (hold them a while) you should be able to boot into normal recovery
Rudjgaard said:
Yeah you are in apx mode, which is basically the boot section of the nvidia tegra chipset.
You should be able to boot normally by unplugging the phone, remove battery for a few seconds, reinsert and hold power button for about 10 seconds
Click to expand...
Click to collapse
I've try that but dont work.
In device manager the apx device is it properly installed or does it have the triangle?
When it first connected as apx device it probably asked you for drivers, i doubt you installed them.
I don't know if the apx drivers for the 04 are out already, check these terms in xda i know some people have been working on them.
Maybe you can find them here
If the device isn't bricked you are in a situation in which you should be able to flash stuff.
For some this method worked:
Try turn off phone
take battery out
hold vol- and put usb cable into phone
if s/w mode starts put battery in and flash kdz
Otherwise check this thread out
or this
I have to go out and can't follow you for a while, sorry
Rudjgaard said:
In device manager the apx device is it properly installed or does it have the triangle?
When it first connected as apx device it probably asked you for drivers, i doubt you installed them.
I don't know if the apx drivers for the 04 are out already, check these terms in xda i know some people have been working on them.
Maybe you can find them here
If the device isn't bricked you are in a situation in which you should be able to flash stuff.
For some this method worked:
Try turn off phone
take battery out
hold vol- and put usb cable into phone
if s/w mode starts put battery in and flash kdz
Otherwise check this thread out
or this
I have to go out and can't follow you for a while, sorry
Click to expand...
Click to collapse
it have the triangle, but i jus want it in normal mode. I dont want that apx mode so i dont need the drivers. But tks for every thing
condegil said:
it have the triangle, but i jus want it in normal mode. I dont want that apx mode so i dont need the drivers. But tks for every thing
Click to expand...
Click to collapse
The only way for you to get connected in APX is without battery, connect to PC while pressing vol- & vol+.
Anyway... why you want to do that? APX mode doesn't work in JB.
Ok... I got it.
Did you tried to deactivate the APX device in device manager?
You can try to performe the bootloader unlock again (run adb and connect the phone while the program wait for device...)
http://www.4shared.com/rar/HFf4newq/LGO4X-UNLOCK-BOOTLOADER.html (instructions inside).
Or try to get in SW mode by trying untill it works... (connect to PC while pressed vol-).
Any update on the problem?
Rudjgaard said:
Any update on the problem?
Click to expand...
Click to collapse
No, i think what happened was that all the firmware is erased and this naturally gave access to apx that should be hidden by the software. Probably there was some error when I wipe to put the CM10. I see no other explanation.
The phone is actually mine. Already sent it to warranty hoping they'll fix it.
Resuming, the phone went unexpectadly in APX mode and havent found a way of quitting that mode, couldn't boot S/W neither bootloader.
And btw the phone is carrier locked and to be honest I'm not sure if it might be part of the problem or not. Anyway in about two weeks the phone should be back and hopefully fixed. If not I'll check here for some more help guys, thanks for attetion so far

[Q] LG P970H S/W Screen

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

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