Database Develop

[Q] USB Device not recognized

Hi everybody,
I installed the drivers manually but still I get the pop up of "USB Device not recognized".
I installed the drivers named as "LGUnitedMobileDriver_S498CA21_WHQL_ML_Ver_2.1".
Help please...

Change USB port? Do not connect to fron panel USB's?

hikmetataman said:
Hi everybody,
I installed the drivers manually but still I get the pop up of "USB Device not recognized".
I installed the drivers named as "LGUnitedMobileDriver_S498CA21_WHQL_ML_Ver_2.1".
Click to expand...
Click to collapse
You aren't mention what version of MS Wind0w$ you're using, and what ROM you used on your phone.
mgregor said:
Change USB port? Do not connect to fron panel USB's?
Click to expand...
Click to collapse
And same as mgregor, don't use front panel to connect USB.

Used drivers must be obsolete. Use 3.2.1 or 3.5 and be sure android platform modem is activated to be recognized by b2c

Try LG United Mobile Driver, there is a link on knzo's CWM recovery thread. And yes try a direct port on motherboard behind your cpu case.
Also try another usb cable.
Sent from my Optimus Black using Tapatalk

at this problem.... in my opinion is to check your usb cable or the usb port of your mobile...
if you cannot open the mobile,you can go to a mobile technician and tell him to resolder the usb port of your LG optimus....

My pc is a notebook.

Firstly thanks a lot.
mgregor said:
Change USB port? Do not connect to fron panel USB's?
Click to expand...
Click to collapse
I use notebook. I tried changing ports.
redy2006 said:
You aren't mention what version of MS Wind0w$ you're using, and what ROM you used on your phone.
And same as mgregor, don't use front panel to connect USB.
Click to expand...
Click to collapse
I use 32bit XP, I have a stock rom v10a.
Ilko said:
Used drivers must be obsolete. Use 3.2.1 or 3.5 and be sure android platform modem is activated to be recognized by b2c
Click to expand...
Click to collapse
I use 3.2.1 version of drivers. LG PC Suite IV or B2C can't recognize my phone.
lesp4ul said:
Try LG United Mobile Driver, there is a link on knzo's CWM recovery thread. And yes try a direct port on motherboard behind your cpu case.
Also try another usb cable.
Sent from my Optimus Black using Tapatalk
Click to expand...
Click to collapse
I tried a new usb cable but did not work.
juvanni said:
at this problem.... in my opinion is to check your usb cable or the usb port of your mobile...
if you cannot open the mobile,you can go to a mobile technician and tell him to resolder the usb port of your LG optimus....
Click to expand...
Click to collapse
It seems a bit risky my friend... I don't know what to do. Can I root my device without connecting to pc?? I want nova. Previously I rooted my wildfire with CM7. It was very different!

Be sure platform modem is activated in peripherals manager. This is what makes the phone being recognized by pc suite and b2c

Ilko said:
Be sure platform modem is activated in peripherals manager. This is what makes the phone being recognized by pc suite and b2c
Click to expand...
Click to collapse
It is activated but when I try to update driver it can not find any. Which driver should I use at that point? Maybe there is a problem in the connection point on the phone?? I am not use about taking my optimus to a mechanic.

Do you have another computer to test? Perhaps the problem was related to your Wind0w$ system...
hikmetataman said:
Can I root my device without connecting to pc??
Click to expand...
Click to collapse
Use WiFi, open forum and search GingerBreak, download and install it.
If your ROM are V10A, then it should work..
CMIIW.

redy2006 said:
Do you have another computer to test? Perhaps the problem was related to your Wind0w$ system...
Use WiFi, open forum and search GingerBreak, download and install it.
If your ROM are V10A, then it should work..
CMIIW.
Click to expand...
Click to collapse
I tried to connect my phone to an other XP result is the same "USB device not recognized". I tried Windows 7, Windows 7 did not even pop-up! Nothing happened! Only my phone was charging.
I am looking for gingerbreak but this problem is very annoying for transfering files. Each time I have to remove the SD card... Or myphoneexplorer(connected by wireless)...
Any advice?

Hi guys,
I finally managed to connect my phone to my pc. The problem was about the cables that I tried. Another original lg cable solved my problem.
But now I have an other problem. The brightness of my screen. It is usually at the minimum brightness and I can't change it. It does not change anything when I change the brightness settings. I tried other firmwares from http://luivit.altervista.org/firmwareP970/index.php but did not work still the same!
Help please...

run mini on pc without installing samsung usb drivers

hi everyone . i have question Is there any way to connect samsung mini to pc without installing bunch of samsung usb drivers? i heard once that there was software which comes for rooted phone that will make ur device that wont need usb drivers installed on pc!!.. im sick of this issue due to i just switched from nokia to samsung and this problem is annoying for me(and im sure for everyone). nokia didn't have this problem!! help someone.

You have to have some kind of drivers. Just download kies and install it, then try to connect your device and the drivers are installed. I saw windows downloading some drivers when I first connected it but idk...
Its one time installation and you don't need to do it again.
Edit: I'm sure nokia had drivers too. They were installed with the pc software.

Nokia supports plug n play on all platforms. But Android supports plug n play only in Linux as Android is Linux. To enable plug n play in windows u need adb(which u call drivers).. Isn't that simple to understand?

Not true. Plug and play doesn't mean that it doesn't need the drivers. Actually, my gf's nokia e75 took about 1.5 hours to install drivers, even after installing the pc platform. Point is, the pc needs them to communicate with your device. So, wait once for them to install, and then you are done gor as long that you use this pc, or this mobile device.
But, it might be usefull to install kies from the samsung website... It has a driver package with it. Could speed up the process
Sent from my GT-S5570 using xda premium

Do u even know what plug n play means?

its impossible to install drivers/sam kies on every computer that i want to connect! coz some times i maybe wish to connect my phone to office pc or cafe etc that i didn't actually have admin access to install drivers/kies ,,yeah Linux os didn't ask for drivers.

crazy_k_p said:
Do u even know what plug n play means?
Click to expand...
Click to collapse
Seems like you don't...
Sent from my GT-S5570 using xda premium

royalasif said:
its impossible to install drivers/sam kies on every computer that i want to connect! coz some times i maybe wish to connect my phone to office pc or cafe etc that i didn't actually have admin access to install drivers/kies ,,yeah Linux os didn't ask for drivers.
Click to expand...
Click to collapse
Do you want to transfer files between computers and your device?
Did you get a micro sd adapter with the phone?
If yes, buy some card reader and plug it in every computer you want.

install kies in ur pc and after finishing go to the installation directory and there u will find a folder named driver/usb driver.go to the folder and just preserve the file. u can now uninstall kies and from now on u will have to just install the driver file that u extracted from the kies. by this way mini will be connected to ur pc without kies installed.

Shuvo_bd said:
install kies in ur pc and after finishing go to the installation directory and there u will find a folder named driver/usb driver.go to the folder and just preserve the file. u can now uninstall kies and from now on u will have to just install the driver file that u extracted from the kies. by this way mini will be connected to ur pc without kies installed.
Click to expand...
Click to collapse
He wants to connect his device in any computer in the city, even in the computers that he doesnt have admin access.

Bunnybugs_007 said:
Seems like you don't...
Sent from my GT-S5570 using xda premium
Click to expand...
Click to collapse
Well probably u don't know. I won't give any explanation. For the mini to work directly on any pc, u can try pairing it with bluetooth if the pc has one or there is another way which I currently don't remember. Sony xperia phones does not need any drivers, they have an inbuilt app which does the work. If anyone could find out what that app is then the problem is solved. I think its something like 'sync'
Don't remember.

SwankyShaan
I connect my galaxy mini to any PC i want by turnin on the USB storage mode. We can Transfer files without any card reader or drivers. Only glitch is no access to contacts or inbox but who cares!
Here's how u do it, goto settings->applications->development->enable USB DEBUGGING
Then connect ya phone from data cable, u'll see a usb icon on notification bar click on it n TURN ON USB STORAGE
Simple right?!
P.S:If u don't see a USB icon in notification then enable usb debuggin once again from settings.

crazy_k_p said:
Well probably u don't know. I won't give any explanation. For the mini to work directly on any pc, u can try pairing it with bluetooth if the pc has one or there is another way which I currently don't remember. Sony xperia phones does not need any drivers, they have an inbuilt app which does the work. If anyone could find out what that app is then the problem is solved. I think its something like 'sync'
Don't remember.
Click to expand...
Click to collapse
That app doesn't seem to support windows 7. My brother in law tried to port it to LG optimus, and to my galaxy mini, but it won't work proper. But, you can always trie to get an app that works with microsoft activesync. That's embedded within windows, so the drivers for that should be found and install fairly quick.

LOL
royalasif said:
hi everyone . i have question Is there any way to connect samsung mini to pc without installing bunch of samsung usb drivers? i heard once that there was software which comes for rooted phone that will make ur device that wont need usb drivers installed on pc!!.. im sick of this issue due to i just switched from nokia to samsung and this problem is annoying for me(and im sure for everyone). nokia didn't have this problem!! help someone.
Click to expand...
Click to collapse
Hi mate, follow my method
PLUG IN your USB CABLE through behind of your CPU (do not jack your phone 1st)
goto SETTING-APPLICATION-DEVELOPMENT, and UNtick "USB DEBUGGING"
Jack on your USB CABLE, okay, now you will noticed "USB PROMPT" . slide down bar and choose USB DEBUGGING (copy files etc bla bla bla it says) and TURN ON USB STORAGE . you're DONE

http://www.4shared.com/get/RsWcxNuH/samsung_usb_driver_for_mobile_.html
Try this file if you don't wanna install Kies and still wanna connect your phone to pc....

install pdanet on pc and while doing steps on it you will need to connect your mobile to pc with debugging enabled and driver will be installed

Plug and play doesn't mean drivers are not there
crazy_k_p said:
Do u even know what plug n play means?
Click to expand...
Click to collapse
Plug and play simply means that the drivers are automatically installed as soon as the device is connected.
There is not a single piece of hardware that "does not require drivers" to run as far as i can tell.
Drivers are always required, but u dont need to install them manually in case of plug and play devices.
---------- Post added at 03:34 PM ---------- Previous post was at 03:27 PM ----------
royalasif said:
hi everyone . i have question Is there any way to connect samsung mini to pc without installing bunch of samsung usb drivers? i heard once that there was software which comes for rooted phone that will make ur device that wont need usb drivers installed on pc!!.. im sick of this issue due to i just switched from nokia to samsung and this problem is annoying for me(and im sure for everyone). nokia didn't have this problem!! help someone.
Click to expand...
Click to collapse
try to turn off usb debugging after u connect it. then maybe u'll be able to mount usb storage successfully. well i'm not sure because i've already installed kies but give it a try.
And if it works, do not forget to press THANKS

USB-connection (Smartflash, NVFlash, Data-transfer)

Hi,
I've search thru the forums and tried several things, but haven't found a solution.
My problem is that I no longer can make a USB-connection to my O2X.
The only thing that works in the micro-usb is charging. What I tried:
- Smartflash (power-up without battery while holding vol-)
- NVFlash (power-up without battery while holding both vol-buttons)
- Ordinary USB-connection (flash-drive)
- Cleaned it for dust
All of this was done on different windows machins (WinXP and Win7), all USB-ports and different USB-cables (inlcuding one that I know has worked before). Windows don't even show me the device.
The reason why I want to flash is that I think the current baseband (that I flashed) is not the best for my phone. So I want to try another baseband.
Do any of you have a suggestion on how to fix my phone or is the hardware toasted?
Best regards
Anders

Unable to install stock rom
DEAR MEMBERS
please help me i am running cm7.2 in my o2x and want to go back to stock rom.
i have downloaded smartflash tool and stock rom fls and bin files and done the entire procedure as mentioned in the guide
but when i press start button it asks to install odm which is not mentioned in the steps.
when i press yes nothing happens when i press no nothing happens.
please help me to get back to stock rom or else i may void my warranty.
once before i installed the stock rom by the procedure and was successful but this time i am unable

First uninstall lg software and lg usb drivers then first install LGUnitedMobileDriver_S498MA21_WHQL_ML_Ver_2.1.exe then run the SmartFlashTool_P990.exe then remove battery plug device in while holding volume down - and them try.

komunistvb said:
First uninstall lg software and lg usb drivers then first install LGUnitedMobileDriver_S498MA21_WHQL_ML_Ver_2.1.exe then run the SmartFlashTool_P990.exe then remove battery plug device in while holding volume down - and them try.
Click to expand...
Click to collapse
Thanks for your suggestion, already tried this. The problem is that Windows don't even pickup on my O2X when plugged in. No new devices in the Device Manager shows up.

aziz.chamadia said:
DEAR MEMBERS
please help me i am running cm7.2 in my o2x and want to go back to stock rom.
i have downloaded smartflash tool and stock rom fls and bin files and done the entire procedure as mentioned in the guide
but when i press start button it asks to install odm which is not mentioned in the steps.
when i press yes nothing happens when i press no nothing happens.
please help me to get back to stock rom or else i may void my warranty.
once before i installed the stock rom by the procedure and was successful but this time i am unable
Click to expand...
Click to collapse
Please don't hijack my thread!

Aduck79 said:
Thanks for your suggestion, already tried this. The problem is that Windows don't even pickup on my O2X when plugged in. No new devices in the Device Manager shows up.
Click to expand...
Click to collapse
Try going to Hardware and Sound and then Devices and Printers in the Control Panel. Maybe it'll show there.

Aduck79
You may try in a virgin PC where no USB drivers have been installed. Best would be format PC reinstalll WIN OS and try NVFLASH or SMARTFLASH after installing LG USB drivers. I have also faced similar problems and solved them in different PCs either friends or office. I somehow feel LGs drivers are badly written and not very smooth functioning. In fact I (and many others) have bricked O2X trying to upgrade to official GB updates by using LG PC suite and drivers.
This is only my suggestion. I did not had to format my PC any point of time. Don't curse me if this fails. This is only one of the trials and errors.

Maybe I should try from a Linux live-cd to check if it's windows or the phone who's acting strangely.
Sent from my LG Optimus 2X

I got the exact same problem and after searching the net there are a lot of people having the same issue too.
Don't want to sound negative but the majority never got it to run again. For some it automagically started working again.
I got it to run only on Stock Froyo, no stock GB and no ICS with all the ICS Kernels available.
The thing which helped me on Froyo was: http://forum.xda-developers.com/showpost.php?p=28985033&postcount=5
Unfortunately CM9 has no secret menu.
I once had it recognized with Jarvis Kernel on Paranoidandroid for a second and had a hotreboot. Then never again.
I'm pretty sure the PC and the LG Drivers make no difference in this case, as I got 5 different PCs running different OS for testing and they never made a difference.

Aduck79 said:
Hi,
I've search thru the forums and tried several things, but haven't found a solution.
My problem is that I no longer can make a USB-connection to my O2X.
The only thing that works in the micro-usb is charging. What I tried:
- Smartflash (power-up without battery while holding vol-)
- NVFlash (power-up without battery while holding both vol-buttons)
- Ordinary USB-connection (flash-drive)
- Cleaned it for dust
All of this was done on different windows machins (WinXP and Win7), all USB-ports and different USB-cables (inlcuding one that I know has worked before). Windows don't even show me the device.
The reason why I want to flash is that I think the current baseband (that I flashed) is not the best for my phone. So I want to try another baseband.
Do any of you have a suggestion on how to fix my phone or is the hardware toasted?
Best regards
Anders
Click to expand...
Click to collapse
I'm afraid without any USB connection at all you are pretty much out of luck I'd say

kohos said:
I got the exact same problem and after searching the net there are a lot of people having the same issue too.
Don't want to sound negative but the majority never got it to run again. For some it automagically started working again.
I got it to run only on Stock Froyo, no stock GB and no ICS with all the ICS Kernels available.
The thing which helped me on Froyo was: http://forum.xda-developers.com/showpost.php?p=28985033&postcount=5
Unfortunately CM9 has no secret menu.
I once had it recognized with Jarvis Kernel on Paranoidandroid for a second and had a hotreboot. Then never again.
I'm pretty sure the PC and the LG Drivers make no difference in this case, as I got 5 different PCs running different OS for testing and they never made a difference.
Click to expand...
Click to collapse
Does the ROM has anything to do with Smartflash- and NVflash-modes? My guess is that they have nothing to do with each other. So my problem should persist even though I try different ROMs. Correct me if I'm wrong.
I'll look into the Froyo-topic you linked to.

Strange. Now it suddenly works again. I didn't do anything from the last time. That's odd.

I don't think that the ROM specifically has to do with the problem.
Stock Froyo just happened to be the only ROM where switching USB connection modes made the device seen in device manager on Windows. (Although it required manual .inf driver clickery.)
I'm sure missing USB connectivity affects people in NVFlash as well.
In my case I can't do **** ranging from USB mass storage when booted up, ADB or NVFlash when booting.
However restoring to the Froyo nandroid makes everything working for me again.

oh oh, it looks like the same issue that i had... No PC-connection (Win/Linux) recognized the mobile via USB. No Chance to get it back to work.
I flashed back to stock (very difficult without NVFlash...) and then send it back LG Service for repearing. After three weeks i got it back. They changed the hole mainboard so i got a new IMEI but USB works now again.

zeonit said:
oh oh, it looks like the same issue that i had... No PC-connection (Win/Linux) recognized the mobile via USB. No Chance to get it back to work.
I flashed back to stock (very difficult without NVFlash...) and then send it back LG Service for repearing. After three weeks i got it back. They changed the hole mainboard so i got a new IMEI but USB works now again.
Click to expand...
Click to collapse
Yeah. It stopped working after I booted a couple of times
And it was only semi working, it didn't want to go into Smartflash-mode, only NVFlash and Flash-drive.

@aduck79,
Did you already try tonyp's modded adb drivers?
http://forum.xda-developers.com/showthread.php?t=1752074

aragorn7 said:
@aduck79,
Did you already try tonyp's modded adb drivers?
http://forum.xda-developers.com/showthread.php?t=1752074
Click to expand...
Click to collapse
Nope, as I'm quite sure that it's not a matter of drivers.
Windows don't even detect the phone. So I think that the phone doesn't present itself.
Sent from my LG Optimus 2X

Since you already tried changing cables, computers, and even windows & Linux, and since it works on and off, You're right - it isn't the rom nor the drivers. it does sound like the hardware is messed up where the cable connects.
Any chance you can get it serviced? Hope your warranty covers it.
Sent from my LG-SU660 using xda premium

Same problem, no solution
Hi,
I seem to have the same sort of problem with my phone.
I used to be able to connect my phone to my computer just fine until I upgraded it to Gingerbread. Or that is at least the last time the USB connection seemed to work.
I have looked all over the internet now to find a solution to the problem but can't find one. Hope you guys could help me on this.
My phone is an LG optimus 2x P990 with a stock ROM gingerbread 2.3.4
LGE Version LGP990-V20r
Kernel version 2.6.32.9
I've tried so far:
- rebooting phone and pc
- factory reset phone
- Use other pc's => didn't work
- Connect a samsung phone to my pc with my LG cable => did work
- uninstall and reinstall all the necessary drivers
- mass storage mode on and off
- Installed android SDK and looked for adb devices, none shown
- phone doesn't show in the computers device manager either
Although when I do connect the phone it starts charging and if I go to the tethering settings it does recognize the fact that it is connected through USB.
So why can't I get my PC to recognize the phone.
I really need it cause I would like to root my phone to install a custom ROM.
I have tried rooting it with Gingerbreak as well, but that doens't seem to work either.
Thanks for the help

I just made a recovery.log in CWM:
http://pastebin.com/yJw6LEmf
It mentions something about USB in the bottom. Maybe it's a software issue after all?
Sent from my LG Optimus 2X

[Q] Rooting w/o USB connection

Hi, guys! I have a really big problem :/. Right now I'm using the stock 2.3.4 gingerbread from LG ,but you all know that this is the worst OS ever. I wanted to get rid of it but i cant connect my device to the computer. It's only charging. I need a way to root it w/o usb connection. Do u have any suggestions? It's not a software problem! Something inside the phone is broken and i don't know what it is. Is there a way to root it via bluetooth or SD card? I didn't find any apps to root it too. I know gingerbreak etc, but they dont work for 2.3.4. Thank you in advance and i hope there is a solution. :fingers-crossed:

I am afraid you can't. Replacing your micro usb port could solve your problem. I reccomend to buy a micro usb port which is already on the flexible cable so you can avoid ironing.
Sent from my LG-P990 using xda app-developers app

So i'll need this? I asked a staff member in a service station and he said that the port isnt broken. So i need the whole thing port+flexible cable? Is that what i should do? Thanks alot. Ohh man i cant post links still: http:___//i.ebayimg.com/t/LG-G2X-Optimus-2X-P990-P999-Micro-USB-Charging-Port-Flex-Cable-Repair-Part-/00/s/OTU1WDE0MDI=/z/unUAAOxy9DRSAoTf/$T2eC16R,!wsE9suwycosBS!oTe7+VQ~~60_57.JPG

stupid question: did you try another usb cable or usb port?

Yeah, dude. Of course. I've tried different settings like usb debugging on/off too but still nothing.

here are some articles you might want to check out regarding usb connection
http://www.birdiesync.com/my-android-device-cannot-connect-over-usb
http://www.droidxforums.com/forum/chevyno1/31975-usb-charge-only-ssx.html (2nd post reply)
i forgot how the mass storage settings in gingerbread look like but there should be an option to put the phone in "charge only" mode (which you should disable)... pressing menu key in settings > storage doesn't give you any options to choose?

In gingerbread you can only turn usb mass storage and usb debugging on/off. These settings didn't help. I'll read more about the first link you gave me and try it out.

peetyo040497 said:
In gingerbread you can only turn usb mass storage and usb debugging on/off. These settings didn't help. I'll read more about the first link you gave me and try it out.
Click to expand...
Click to collapse
This is quite challenge, root without usb connection. First idea I got to use ADB over WiFi, but this is available from ICS, not on GB.
Second idea - what I remember, some of root methods use APK installation over ADB by script. Maybe you can search for these script methods and place all required files on SD Card. Then try to execute commands by terminal on device itself to install and root.
It's just my idea, maybe wrong, maybe help.

peetyo040497 said:
So i'll need this? I asked a staff member in a service station and he said that the port isnt broken. So i need the whole thing port+flexible cable? Is that what i should do? Thanks alot. Ohh man i cant post links still: http:___//i.ebayimg.com/t/LG-G2X-Optimus-2X-P990-P999-Micro-USB-Charging-Port-Flex-Cable-Repair-Part-/00/s/OTU1WDE0MDI=/z/unUAAOxy9DRSAoTf/$T2eC16R,!wsE9suwycosBS!oTe7+VQ~~60_57.JPG
Click to expand...
Click to collapse
Yes that is what you need if you have to replace your USB port but you don't have skills to replace only the usb port.
You can try gingerbreak to root your phone, but it maybe won't work.

bitdomo said:
Yes that is what you need if you have to replace your USB port but you don't have skills to replace only the usb port.
You can try gingerbreak to root your phone, but it maybe won't work.
Click to expand...
Click to collapse
Gingerbreak works on devices with android 2.3.3 and lower. Anyways I've tried it but it didn't work.

p.valenta said:
This is quite challenge, root without usb connection. First idea I got to use ADB over WiFi, but this is available from ICS, not on GB.
Second idea - what I remember, some of root methods use APK installation over ADB by script. Maybe you can search for these script methods and place all required files on SD Card. Then try to execute commands by terminal on device itself to install and root.
It's just my idea, maybe wrong, maybe help.
Click to expand...
Click to collapse
I'm not aware of ADB and scripting. Can you give me sоme guidelines?(I'm sorry 'bout my english. I hope you understand)
p.s. I found some info about ADB. So you need ADB to control your device via commands, but you can use ADB on your computer? You say that i have to find a way to use ADB on my phone so it controls itself and roots?

peetyo040497 said:
I'm not aware of ADB and scripting. Can you give me sоme guidelines?(I'm sorry 'bout my english. I hope you understand)
p.s. I found some info about ADB. So you need ADB to control your device via commands, but you can use ADB on your computer? You say that i have to find a way to use ADB on my phone so it controls itself and roots?
Click to expand...
Click to collapse
sorry to hear about your problems but just a simple question here have u tried another computer ? i had this problem with my nexus when i connect it to the pc i couldn't transfer my stuff to it but adb worked, but when i took it to another computer both mtp and adb worked

Yes, I've tried another pc's port and it didnt find my device too. My issue isn't the same i mean that my computer doesn' recognize the phone. There are no messeges that appear on the device or computer.

peetyo040497 said:
Yes, I've tried another pc's port and it didnt find my device too. My issue isn't the same i mean that my computer doesn' recognize the phone. There are no messeges that appear on the device or computer.
Click to expand...
Click to collapse
peetyo maybe your cable isn't good and did you try to install lg drivers?
check also by device manager or computer management or a device is appeared
Sent from my LG-P990 using xda app-developers app

winstonxl2 said:
peetyo maybe your cable isn't good and did you try to install lg drivers?
check also by device manager or computer management or a device is appeared
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
Guys, the problem is not in the computer nor in the cable, it's in the phone. I'm 99% sure that it's a hardware problem. So i need to find a way to root or flash it without using usb connection.

i'm somehow sure that the real problem here is the device driver installation on your PC/Windows, not the phone...
btw which windows version are you using?
did you try checking out the AIO tool thread?
http://forum.xda-developers.com/showthread.php?t=2020737

60nine said:
i'm somehow sure that the real problem here is the device driver installation on your PC/Windows, not the phone...
btw which windows version are you using?
did you try checking out the AIO tool thread?
http://forum.xda-developers.com/showthread.php?t=2020737
Click to expand...
Click to collapse
Win 8 currently.
How would this thread help me?
I'll try installing the drivers on this laptop cause i''ve tried before on a one with xp.
P.s. With the drivers reinstalled on win 8 it doesnt work. As i said i've tried different computers, different cables and different setting.

peetyo040497 said:
Win 8 currently.
How would this thread help me?
I'll try installing the drivers on this laptop cause i''ve tried before on a one with xp.
P.s. With the drivers reinstalled on win 8 it doesnt work. As i said i've tried different computers, different cables and different setting.
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if you read the 1st post, you might find out how could it help you... especially if you use win 8 which caused problems for many other users when trying to install the drivers or trying to flash the phone...
I - Install APX (NVFlash Recovery) Drivers if not already installed.
It starts the windows device driver wizard to help you install the drivers needed for NVFlash. It detects your system OS and gives additional on-screen instructions needed if your PC is running Windows 8.
FYI: The drivers are located under ToolKitFiles\nvflash\driver folder.
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60nine said:
if you read the 1st post, you might find out how could it help you... especially if you use win 8 which caused problems for many other users when trying to install the drivers or trying to flash the phone...
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I use windows 8 from a week. Anything i've done before was on a xp/ win 7. The problem isnt in the win 8 i use now. I've tried everything on my xp laptop. I have a friend who has the same phone and he can connect it to his computer so everything is fine with his computer. I've tried to connect my optimus to his computer and again it wasnt found by the computer. The problem must be in my device.
I'll try installing the APX drivers.

peetyo040497 said:
I use windows 8 from a week. Anything i've done before was on a xp/ win 7. The problem isnt in the win 8 i use now. I've tried everything on my xp laptop. I have a friend who has the same phone and he can connect it to his computer so everything is fine with his computer. I've tried to connect my optimus to his computer and again it wasnt found by the computer. The problem must be in my device.
I'll try installing the APX drivers.
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u said that u wanted to get rid of the lg gingerbread software, and for that u dont really need to root, u could use the all in one toolkit and flash the new unlocked bootloader with cwm or twrp and install the new bootloader rom u want its as easy as that

after root ther is problem

i rooted my phone but now my PC doesn't show any thing when i plug in the USB and even LG PC suit doesn't read my phone
what should I do ?
second I want to backup my phone application data i don't want to lose viber and whatsapp conversations what should i do ​

Toggle usb debugging in developer options and see if it helps
Sent from my Nexus 5 using Tapatalk

Ben36 said:
Toggle usb debugging in developer options and see if it helps
Sent from my Nexus 5 using Tapatalk
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no it doesn't work :crying::crying:
MTP , LG software and PTP they are all dead

beboo006 said:
no it doesn't work :crying::crying:
MTP , LG software and PTP they are all dead
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You could try installing the drivers manually. Does a device show up in Windows' Device Manager when the phone is plugged in?

balloon27 said:
You could try installing the drivers manually. Does a device show up in Windows' Device Manager when the phone is plugged in?
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i installed drivers manually and i uploaded photo of Device manager
is the problem from my phone or from my PC ?
thanks for Help
sorry of the bad English not my first Lang.

Your device does show up in the device manager, so that's a good sign! Can you see what the exclamation mark means in the properties?

Same problem here...
Tried with another P880 on same computer and it was found.
ADB works, and access to SD-cards (internal/external) works just fine.
Only thing that doesn't work is PC Suite, it just doesn't find the rooted device.
Any ideas?

Which OS you are on? I am on windows 8.1 and i had to install Windows Media Feature Pack for N and KN versions of Windows 8.1 to manage to access phones memory.

Hallako said:
Which OS you are on? I am on windows 8.1 and i had to install Windows Media Feature Pack for N and KN versions of Windows 8.1 to manage to access phones memory.
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I'm running Win7 (Home & Ultimate on two different PC's). Unfortunately that's only OS available ...
But I don't think that's the problem since there was no problems accessing or updating the phones before rooting.
I even tried one non-roted P880 (my gf's) on same computers without any problem.

the problem get solved :laugh::laugh: i just installed new windows
now how can i backup every thing even the app data i don't want to lose whatsapp and viber and games data in my phone because i want to install CM and remove the ****ty Stock ROM ? can any one help me please