USB Problem - LG Optimus L9 P760, P765, P768, P769

Okay guys ive tried really bad to not create a new thread bout it but i need help
ive searched for every single thread about usb problems on l9 but neither one helped
tried installing lg drivers new/old ones,installin LG Suite restarting pc/phone but still gettin same error
The problem is when i plug my usb cable in pc then phone ive get error (USB Device not recognized)
(USB Device not recognized) , and phone only start to charging ://
Sometimes it starts to download some drivers but it always get error on some MTP driver ://
I just want to root my phone badly
thanks in advance

karisha91 said:
Okay guys ive tried really bad to not create a new thread bout it but i need help
ive searched for every single thread about usb problems on l9 but neither one helped
tried installing lg drivers new/old ones,installin LG Suite restarting pc/phone but still gettin same error
The problem is when i plug my usb cable in pc then phone ive get error (USB Device not recognized)
(USB Device not recognized) , and phone only start to charging ://
Sometimes it starts to download some drivers but it always get error on some MTP driver ://
I just want to root my phone badly
thanks in advance
Click to expand...
Click to collapse
Try booting computer into safe mode and see what happens.

kevev said:
Try booting computer into safe mode and see what happens.
Click to expand...
Click to collapse
ive tried still gettin USB Device not recognized :// and starts chargin
only one time i connected my phone with usb i think thats the first time when i bought phone few days ago and that was last time
is it PC problem or phone?
please help )

karisha91 said:
ive tried still gettin USB Device not recognized :// and starts chargin
only one time i connected my phone with usb i think thats the first time when i bought phone few days ago and that was last time
is it PC problem or phone?
please help )
Click to expand...
Click to collapse
Hard to tell. Check the device manager. You may need to manually select the driver that the device uses. Also, try another computer.

kevev said:
Hard to tell. Check the device manager. You may need to manually select the driver that the device uses. Also, try another computer.
Click to expand...
Click to collapse
ill try another pc ,but thanks ,if some find out a solution post it thanks )
im looking forward it

karisha91 said:
Okay guys ive tried really bad to not create a new thread bout it but i need help
ive searched for every single thread about usb problems on l9 but neither one helped
tried installing lg drivers new/old ones,installin LG Suite restarting pc/phone but still gettin same error
The problem is when i plug my usb cable in pc then phone ive get error (USB Device not recognized)
(USB Device not recognized) , and phone only start to charging ://
Sometimes it starts to download some drivers but it always get error on some MTP driver ://
I just want to root my phone badly
thanks in advance
Click to expand...
Click to collapse
I am not sure, but have you tried connecting directly to the pc at backside usb? the usb on motherboard? well the symptoms are exactly same when you put on front usb port on pc.
I hope you are using original cable. Sometimes bad and lengthy cables do loss signals and this happens. Voltage passes but not the data making it undetectable. feedback.

cmahendra said:
I am not sure, but have you tried connecting directly to the pc at backside usb? the usb on motherboard? well the symptoms are exactly same when you put on front usb port on pc.
I hope you are using original cable. Sometimes bad and lengthy cables do loss signals and this happens. Voltage passes but not the data making it undetectable. feedback.
Click to expand...
Click to collapse
tried but nothing :/ windows cant install driver ,guess no root for me (

Have you got Windows Media Player? If not install media feature pack.

Related

Help Vibrant not connecting to PC

Hi I have a T-Mobile Vibrant and everything was working excellent till today... I took some pictures on the beach and when my girlfriend asked me for the pictures, I plugged the phone to the PC but it didn't recognized the phone. I had installed the samsung vibrant drivers but it is not working! I cant even use the AIO Vibrant Toolbox to put it in download mode for flashing to stock! Im desperate! Please Help! Hope is not a dead usb port!
Things I tried:
Factory Reset
Change the USB Port
Format Internal Memory
Try these drivers;
http://drivers.softpedia.com/dyn-postdownload.php?p=96692&t=4&i=1
EDIT:
Make sure you remove previous drivers, and reboot your comp.
not workin
Hi I tried using those drivers but they didn't work... I formatted my pc tio see if it was a problem with pc but everything is the same... Vibrant knows it is connected it sounds when connected... Pc just says unrecognized device... Dont know what to do... What else can I do...?
try to go to computer->control pannel->remove new device (vibrant) , reainstall drivers (without phone connected) , connect your phone let windows find Your phone )
if that didnt help 1.before windows boots press F8 which will boot you in tree which will give you few options , 2 click on option which says DISABLE SIGNATURE VERIFICATION 3. REINSTALL DRIVERS 4. CONNECT YOUR PHONE .
anther option is go to phone go to 1.SETTINGS 2.APPLICATIONS 3.DEVELOPMENT 4.CHECK USB DEBUGGING
One more 1. Settings 2. Applications 3. Usb 4. Enable mass storage instead of kies or music player .
tried everything
I reinstalled the drivers that way.... change the settings on the phone and i get the same USB Device not Recognized
Devices and Printers Publisher details
Issues found
Unknown Device is not working properlyUnknown Device is not working properly
Windows has detected a problem with Unknown Device. Detected
View device details Completed
Problem with PnP devicesProblem with PnP devices
There are problems with some PnP devices. Windows will take additional steps to further troubleshoot these devices. Detected
Issues found Detection details
5 Unknown Device is not working properly Detected
Windows has detected a problem with Unknown Device.
Device information
Name: Unknown Device
ID: USB\VID_0000&PID_0000\5&3B51E880&0&3
Error code: 43
View device details Completed
View details about Unknown Device and check if there is a solution available.
Problem with PnP devices Detected
There are problems with some PnP devices. Windows will take additional steps to further troubleshoot these devices.
This is what i get on windows troubleshooting.
look!
This is what i got on device manager!
i would sugest redownloading MOTHERBOARD drivers and USB drivers for Your motherboard.
Please
Please someone help me... Im about to cry ...
How do I know is a dead usb port??
by no means dont take my word for it will work im no computer tech :> (yet) P
it cant be dead usb port on your phone since windows detects the phone when u hook it up
I will download ubuntu and my motherboard drivers... and tomorrow will try on a different pc..
awca22 said:
I will download ubuntu and my motherboard drivers... and tomorrow will try on a different pc..
Click to expand...
Click to collapse
Did you ever get this working? I'm having the same issues. I've tried 3 different computers and 2 different operating systems, all that I used last week without any problems. My phone is definitely not in Debug and it's definitely on Mass Storage. What gives?
Hi I couldnt fix it... I did found on internet about corrosion on the usb port but havent tried afraid to ruin it...
awca22 said:
Hi I couldnt fix it... I did found on internet about corrosion on the usb port but havent tried afraid to ruin it...
Click to expand...
Click to collapse
I don't think it's corrosion. I see all the pins fine with no wear on both the cables and the phone.
i bricked mine awhile back...and it wouldnt connect to windows 7 but would on vista.......dont ask me why but both my wifes and mine wont connect to either pc we have....have to remove external card and move things around like that.....sucks.
Rayn1328: that's what I do right now... move stuff to sd card and then to the internal sd card....
PsychoCemia: Well if it isnt corrosion..... What would be wrong with our devices? Everyone thinks its software issues but it is a Hardware issue....
I would like somehow to help us to repair our bricks! PLEASE!
awca22 said:
Rayn1328: that's what I do right now... move stuff to sd card and then to the internal sd card....
PsychoCemia: Well if it isnt corrosion..... What would be wrong with our devices? Everyone thinks its software issues but it is a Hardware issue....
I would like somehow to help us to repair our bricks! PLEASE!
Click to expand...
Click to collapse
I did look around a bit more, and found out about a thing called "USB unbrick." Looks interesting, but I can't do it from work, since I don't have ADB/Kies/etc here. I'll try it out when I get home this evening.
Here's a Link.

USB of LG O1 not getting Detected by PC

First of all I am a big-Noob.
My LG optimus one P-500 is in stock ROM.
My Problem :-
Earlier USB was working fine but now
when I plug it in to the AC Adapter it charges OK but when I plug it in to the USB after that it only charges and neither the Phone nor the PC recognizes the USB data connection.
I have tried
1) Power off the phone and remove the battery for a couple of seconds and power it back up, after doing this the USB does not connects. Not even recognised by PC or Phone
2) Device manager also does not detect anything.
3) Uninstalled modem driver and reinstalled USB driver but no result.
Please help
Thanks in advance
Cheers
Request again
Dear mates
I have really very high respect for the forum so please help me out.
ThanQ
Cheers
This happened to me twice before. I had to send it to LG's Service Center because I saw no way of fixing it since the computer wouldnt know what to do with it...
If you have custom recovery installed, you might be able to flash an original ROM over it. This wasn't an option for me before and it seemed like the only way to fix my phone. Don't take my word for it though. Try for the service center first if possible...
Did you try going to settings and choosing Mass Storage only?
Also, change the USB port of the cable with which you connect your phone (plug the cable in another one - try this with all ports if it doesn't work the first time)...
Before going to any service, do a backup and Factory Reset your device, then try again...
Oh, and disable LG modem from Device Manager after installing the USB drivers.
USB not getting detected
I am trying in choosing Mass Storage only.
"Also, change the USB port of the cable with which you connect your phone (plug the cable in another one - try this with all ports if it doesn't work the first time)..."
Not helping either
Disabled LG modem from Device Manager after installing the USB drivers.
No use
Before going to any service, do a backup and Factory Reset your device, then try again...
I will try this definitely but going to service means 3-4 days without phone . really very scary .
thanks mate
anymore help
Okay , I did face this problem before and I did about hundreds of advice from my friends but this is the step that works.
I discovered that this happens when you do crazy **** on your sd card with applications such as titanium backup or root explorer. Curiousity kills the cat.
Firstly you need:
1) Usb Card Reader [Of course which suits with your sdcard]
2) Computer
Firstly, you want to dismount the sdcard from your phone and mount it to the USB Card Reader.
Connect the Usb Card Reader to your Computer.
You should be able to gain entry to the sdcard
Next,clear everything on your sd card then place your sd card on your phone back and do a factory reset. If you don't do a factory reset then you must do it all over again if you decided to connect the usb to the phone. After reset-ing the phone , try to connect your phone to the computer. Congratulations.
Note: This works for me but it doesn't meant that it will work for you , but I think that this is worth the try.
sanagg1 said:
First of all I am a big-Noob.
My LG optimus one P-500 is in stock ROM.
My Problem :-
Earlier USB was working fine but now
when I plug it in to the AC Adapter it charges OK but when I plug it in to the USB after that it only charges and neither the Phone nor the PC recognizes the USB data connection.
I have tried
1) Power off the phone and remove the battery for a couple of seconds and power it back up, after doing this the USB does not connects. Not even recognised by PC or Phone
2) Device manager also does not detect anything.
3) Uninstalled modem driver and reinstalled USB driver but no result.
Please help
Thanks in advance
Cheers
Click to expand...
Click to collapse
Ur phone charges through usb that means your phone usb port/usb cable is ok. Do this :
Uninstall the drivers, restart the pc and try connecting the phone again. Remember not to install the drivers again. Win7 save a dump of old drivers and i think it will auto detect it. Post results here.
Sent from my LG-P500 using Tapatalk
Got exactly the same situation with USB(on different PCs) and also Emergency mode on every reboot(taking battery out for about an hour helps).
Did SD wipe though not sure about factory reset afterwards, gotta try it one more time...
mansirawat said:
"Ur phone charges through usb that means your phone usb port/usb cable is ok."
Sent from my LG-P500 using Tapatalk
Click to expand...
Click to collapse
I would argue that, I have a samsung omnia that outright refuses to do anything besides charge over usb.
Brainy142 said:
I would argue that, I have a samsung omnia that outright refuses to do anything besides charge over usb.
Click to expand...
Click to collapse
Is it android ?
Lets wait for op reply.
Sent from my LG-P500 using Tapatalk
mansirawat said:
Ur phone charges through usb that means your phone usb port/usb cable is ok. Do this :
Uninstall the drivers, restart the pc and try connecting the phone again. Remember not to install the drivers again. Win7 save a dump of old drivers and i think it will auto detect it. Post results here.
Sent from my LG-P500 using Tapatalk
Click to expand...
Click to collapse
Unfortunately, it did not help either.
any ways,thanks for pointer
Cheers
mansirawat said:
Uninstall the drivers, restart the pc and try connecting the phone again. Remember not to install the drivers again. Win7 save a dump of old drivers and i think it will auto detect it. Post results here.
Click to expand...
Click to collapse
I have tried uninstalling driver and just plugging in with USB but still neither PC nor phone detects USB connection.
I have tried it on Win7, Win Vista and WinXP.
respected mates please help me.
I am on transfer in June so don't want to take chance with Service centre as of Now.
Cheers
Are you sure you are having the latest driver?
try this:
Code:
csmg.lgmobile.com:9002/client/app/B2CAppSetup.exe
install it,
(you may have to choose language from the last tab, 1st or 2nd option)
and choose P500 from "driver installation"
I didnt experience this issue but if i cant help im sorry.
Miasmic said:
Are you sure you are having the latest driver?
try this:
Code:
csmg.lgmobile.com:9002/client/app/B2CAppSetup.exe
install it,
(you may have to choose language from the last tab, 1st or 2nd option)
and choose P500 from "driver installation"
I didnt experience this issue but if i cant help im sorry.
Click to expand...
Click to collapse
I could not find P500.
the names were associated with carrier like T-mobile, verizone etc.
any suggestion
I know i'm stupid
cheers
sanagg1 said:
I could not find P500.
the names were associated with carrier like T-mobile, verizone etc.
any suggestion
I know i'm stupid
cheers
Click to expand...
Click to collapse
Try another cable.
Sent from my LG-P500 using XDA App
None of the above methods worked on mine as well - same results on different cable(pc/os).
Will try to flash rooted original firmware via custom recovery, del custome recovery and root and send it to service.

USB Problem...

Hi since today when i connect my phone to the USB Cable it's only charging, i don't see USB mode... Did someone have same problem, i looking for solution pls
Can someone tell me in settings>wireless and network do you have USB Settings?
Lenks said:
Can someone tell me in settings>wireless and network do you have USB Settings?
Click to expand...
Click to collapse
Hey!
Nope!
CHEERS!
Lenks said:
Hi since today when i connect my phone to the USB Cable it's only charging, i don't see USB mode... Did someone have same problem, i looking for solution pls
Click to expand...
Click to collapse
Do you have Samsung Kies ?
Sent from my Awesome Ace with fla.sh ROM and TAPATALK
I have KIES, i try on my PC, and on my Laptop. Reinstall KIES and drivers, nothing help. I read on google and i think is a cable problem, (same problem whit other android phones, like HTC) i purchase new one but will came after few weeks, so i need to wait If anyone have problem like this, or have any idea please share...
Typ *#7284# in your dialer.
And set both to pda.
Worked for my galaxy 3!
i think it came different menu... if someone hace other code...
The menu is named: phoneutil
It open "ServiceMode", if someone know proper code for "PhoneUtil" let share
Lenks said:
Hi since today when i connect my phone to the USB Cable it's only charging, i don't see USB mode... Did someone have same problem, i looking for solution pls
Click to expand...
Click to collapse
I have the same problem, it suddenly stopped working without any change in the environment or phone.
Does someone have a solution for this problem?
Thanks!
i had the same problem. I took a backup of the rom with cwm and restored it and it was working fine, dunno how
Guys you need the Samsung usb drivers ....only then ur pc will recognise the phone ...just google "android 2.3.4 for Samsung galaxy ace androidflip.com ..they share the drivers in the tutorial ...hope I helped ...
Sent from my SGA rocking CM7.2 by vo-1 + all-in-one script
Lenks said:
It open "ServiceMode", if someone know proper code for "PhoneUtil" let share
Click to expand...
Click to collapse
*#*#4986*2650468#*#* PDA, Phone, Hardware, RF Call Date firmware info
*#*#1234#*#* PDA and Phone firmware info
async3 said:
I have the same problem, it suddenly stopped working without any change in the environment or phone.
Does someone have a solution for this problem?
Thanks!
Click to expand...
Click to collapse
Ok, It got solved yesterday this way:
You do not need to reinstall drivers on PC.
You do not need to reinstall ROM or anything on your phone.
You do not need *# special codes.
You do not need a new cable or change USB port or change your phone for a new one.
It seems to me that somehow (probably for debugging, connecting and disconnecting several times) the phone locks itself in a state where it is unable to connect again through USB although it charges.
So how did I solve it? I executed this actions several times even in different order some times: disabled debugging, disconnected cable, restarted phone, connected cable, (still not recognizing), tryed to USB Theter (even when the option was disabled), reenable debugging.
Out of nothing i noticed the USB icon was there again in my phone and i was able to debug copy files etc again.
I tried disconnecting and conneceting again and it kept working correctly.
I hope this helps someone else with the same problem and probably someone fixes the bug on the OS.
Cheers!

[Q] samsung S2 no more recognised as usb storage

Hi all,
Recently after flashing my S2 with aokp rom , i have no more acces to my phone as usb storage, it charges only and moreover i can no more have access to odin (it shows driver not found). I tried differenent solution like :
1- change cable (th same cable is ok for samsung mini)
2- hard reset
3-reinstalling drivers with kies and samsung drivers
4- going to drivers et uninstalling them (the pc dont show nothing at all like my phone its not plugged)
Somtimes it worked like 2 on 10 attempts but after 2 days no more
Also i noticed somthing in download mode it shows that i cant recognise the device, a bootloader problem maybe(correct me if i am wrong)
Thanks if you have already a problem like that , i googlied the problem but no one have a solution hhhhh
rethanks all
Try to check the advance settings in settings>storage
Sent from my GT-I9100 using XDA
Download mode should work regardless off your rom type.
Try different USB port, or try different computer
U really should try to clean the Micro USB port in first place, i read a lot of cases that phone was not recognized or it just didnt appear to connect to computer just because the port was oxyded... after cleaning (maybe with a very little screw and cotton) try to connect, if it dont, try on another computer, if it still happens its a problem on ur phone, then u will need to flash something, but lets wait till u test all this first ! keep us informed !
Dont forget to try to borrow a usb cable from a friend ! Doenst matter if urs works on another phone...
Hi thanks , for testing another computer i have three at home , same problem.
For cleaning usb port , it is not dangerous?? do you know is there a clean way to do it.
PS: i ll try tonight cleaning it a little:fingers-crossed:
Unfortunately i have the EXACT same problem.. tried everything "changing storage, re installing drivers, cleaning the usb port, trying different pcs and cables". Nothing works :S .. it also works at random times and then stops. Really annoying.
Well i clenaed the usb port with a needle and cotton but no detection, but i noticed that if my phone is off he is detected as unkown device
@HiNd0rZ: did you noticed the same thing
Well maybe it's not a hardware problem, i found that bootloader is related to driver usb detection, a bootloader problem maybe (correct me if i am wrong ) hhh
I have the exact same problem, the only difference is my sgs is still not rooted or flashed,
the last thing I did is update from gb to ics
what I has tried is hard reset, clean the usb port and try with another pc (2 notebook, 1 pc) and with 3 different cable
still not recognized....
No it's starting to bother me , after i full charge it acts like it charges but it's not plugged i think my usb port is caput , i'll try to take it to someone no guaratantee to send it back
Well finally i changed the usb flex cable and it worked but be carefull at testing the phone when you send it to repair the usb flex cable have also the micro so ba aware at testing the phone
Thanks for all and good luck for others

How to Flash custumized rom without odin on GT-I9070?

Hello Everyone,
I was worndring if it is in some how possible to upgrade my GT-I9070 from gingerbread 2.3.6 to Kitkat or other custumized rom without having to use odin.
I have a problem with connecting my phone to the my pc, my laptop won't regonize it, I think is a hardware problem.
Thanks a lot
Yassine
darkclub said:
Hello Everyone,
I was worndring if it is in some how possible to upgrade my GT-I9070 from gingerbread 2.3.6 to Kitkat or other custumized rom without having to use odin.
I have a problem with connecting my phone to the my pc, my laptop won't regonize it, I think is a hardware problem.
Thanks a lot
Yassine
Click to expand...
Click to collapse
Not unless you are already rooted. Does the PC not recognize that you have plugged it in at all or does it just not load the drivers correctly? Best way to tell is to open your Device Manager and plug in the phone. the DM should reload and show something, whether an error or not. If it does not blink out and reload when you plug / unplug the phone, then it's either a hardware issue with the phone's USB port, a bad cable, or bad USB port on PC. And it is possible for a phone to charge correctly, but have issues connecting to a computer if the data pins are messed up. If it IS the phone's port, the repair isn't that bad and could be handle with some patience and simple tools as this one does not involve soldering. You'd need this:
http://www.amazon.com/Samsung-Galaxy-Advance-GT-i9070-Replacement/dp/B00B5OS2LY
https://www.youtube.com/watch?v=_0nuBDAuLm8
You won't find a better guide than that, that guy is amazing at teardowns.
es0tericcha0s said:
Not unless you are already rooted. Does the PC not recognize that you have plugged it in at all or does it just not load the drivers correctly? Best way to tell is to open your Device Manager and plug in the phone. the DM should reload and show something, whether an error or not. If it does not blink out and reload when you plug / unplug the phone, then it's either a hardware issue with the phone's USB port, a bad cable, or bad USB port on PC. And it is possible for a phone to charge correctly, but have issues connecting to a computer if the data pins are messed up. If it IS the phone's port, the repair isn't that bad and could be handle with some patience and simple tools as this one does not involve soldering. You'd need this:
http://www.amazon.com/Samsung-Galaxy-Advance-GT-i9070-Replacement/dp/B00B5OS2LY
https://www.youtube.com/watch?v=_0nuBDAuLm8
You won't find a better guide than that, that guy is amazing at teardowns.
Click to expand...
Click to collapse
Dude really thankful,
As you say, the PC dosn't recognize that the phone is plugged at all, I try all the usb port on my laptop, different cable, and even different laptop and the same problem keep comming up.
I tried also to reboot in odin mode to see if my laptop detecet anything, but nada, nothing in the DM.
Also, like you expect, it can charge but no data connection, and whene it turned off and I plug it it automaticly turned on by itself.
I pretty convinced that it usb port is screwed.
So, to install a rom my phone have to be rooted!! no way to root it from the recovery mode?!
Thanks again
darkclub said:
Dude really thankful,
As you say, the PC dosn't recognize that the phone is plugged at all, I try all the usb port on my laptop, different cable, and even different laptop and the same problem keep comming up.
I tried also to reboot in odin mode to see if my laptop detecet anything, but nada, nothing in the DM.
Also, like you expect, it can charge but no data connection, and whene it turned off and I plug it it automaticly turned on by itself.
I pretty convinced that it usb port is screwed.
So, to install a rom my phone have to be rooted!! no way to root it from the recovery mode?!
Thanks again
Click to expand...
Click to collapse
You can try to clean your USB port of the phone with some compressed air, in case some pocket lint got in there too. Doesn't take much to mess these things up, unfortunately. But yea, I doubt there is a way to root it in the stock recovery as most Samsung phones don't have this option. It'd take less time to just fix it probably then figuring out how to jump through all the other hoops to find a way around it.

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