USB connection not works! - LG Optimus Black

as title: when i connect my OB to PC by USB cable (in USB mass storage mode) the mass storage setup fails! (i use nova v8 rom, but until 2 or 3 weeks ago everything works correctly, and i don't change anything!)
anyone can help me?

Try reboot
Sent from my P-970 using xda premium

ehm...i've already tried 2 or 3 thousand times XD

It might sound silly, but did you ensure that you have Debugging mode enabled on the phone ?
Check to see if Settings->Application->Development->USB Debugging is checked or not.

it's not checked

have you tried reinstalling your ob drivers?¿

Are you using the original cable?
Envoyé depuis mon P-970

i've reinstalled ob drivers many times
i'm not using original cable, but i tried 3 micro usb cables and no one works

mm but do you mean that some programs like pc suite doesnt recognise or just your pc doesnt recognise your ob?¿

i mean i cannot browse ob sd card with explorer

giutal said:
as title: when i connect my OB to PC by USB cable (in USB mass storage mode) the mass storage setup fails! (i use nova v8 rom, but until 2 or 3 weeks ago everything works correctly, and i don't change anything!)
anyone can help me?
Click to expand...
Click to collapse
Have you tried to update the usb driver?

yes, nothing to do

giutal said:
yes, nothing to do
Click to expand...
Click to collapse
I think the only thing you need to do re-install the original rom.You should try it.http://forum.xda-developers.com/showthread.php?t=1448803

Related

[Q]Can't connect in download mode

Hi guys,
I have a real nasty problem here. Whenever i want to connect my SGS in download mode to reflash i get the error "usb device not recognized". When i just connect it as storage i get "this device can perform faster". I habe MIUI 1.12.9 on it, and I really want to flash something else. It stopped working since I accidentally connected my front USB's in the IEEE 1394 slot, instead of the USB one. Since then my external HDD won't work anymore, I had to open it and to use it as an internal one. Is there anything I could do? Or is smth f...ed up with my phone usb...
Any help would be appreciated. Thanks!
got it working on your pc in download mode before?
Try to reinstall the newest Samsung drivers.
sahara101 said:
Hi guys,
I have a real nasty problem here. Whenever i want to connect my SGS in download mode to reflash i get the error "usb device not recognized". When i just connect it as storage i get "this device can perform faster". I habe MIUI 1.12.9 on it, and I really want to flash something else. It stopped working since I accidentally connected my front USB's in the IEEE 1394 slot, instead of the USB one. Since then my external HDD won't work anymore, I had to open it and to use it as an internal one. Is there anything I could do? Or is smth f...ed up with my phone usb...
Any help would be appreciated. Thanks!
Click to expand...
Click to collapse
Once or twice when I get this message I just take out the USB from my laptop and connect it again.. if you are constantly getting this message I think something's wrong with USB.. I would suggest trying to connect on some other computer .. if that also doesn't work then try using a different USB cable..
I already tried on a different PC. Also with another USB cable but a Nokia one. Is it necessary to use a Samsung one?
sahara101 said:
I already tried on a different PC. Also with another USB cable but a Nokia one. Is it necessary to use a Samsung one?
Click to expand...
Click to collapse
No not really.. I have used a nokia cable many times and it has worked fine for me both in download mode and usb storage mode..
if you connect your phone in usb storage mode to a different computer, still the same message is flashed?
Actually on another computer I didn`t manage to connect at all, download mode or mass storage. Everything worked just fine before the USB thing.
Sent from my GT-I9000 using Tapatalk
You can:
1. use a different USB port
2. use a different pc
3. use a program to go to download mode ( POT android tools by opda team).
on different pc - install those USB drivers ->
http://forum.xda-developers.com/showthread.php?t=728929
Click to expand...
Click to collapse
sahara101 said:
Actually on another computer I didn`t manage to connect at all, download mode or mass storage. Everything worked just fine before the USB thing.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
on a different pc you first need to install the drivers for your phone..
Download and install Kies.
POT Android can't find my phone. I'll try again on a different PC...

[Q] Cant use as mass storage?

I'm on zeus v3 I installed the latest lag mobile driver but still can't used my phone as mass storage or to transfer files from computer to my OB and vis a vis.
In order for it to work; USB debugging should be unchecked. first go to settings and uncheck it and try again.
If that doesn't work either go to settings and there is menu lik "SD card and..." under it check USB storage then try again.
When I insert it in the usb port it said's that the usb is not recognized even though I installed the lastes lg mobile.
Pondera said:
In order for it to work; USB debugging should be unchecked. first go to settings and uncheck it and try again.
If that doesn't work either go to settings and there is menu lik "SD card and..." under it check USB storage then try again.
Click to expand...
Click to collapse
Still not working bud.
denclaud said:
When I insert it in the usb port it said's that the usb is not recognized even though I installed the lastes lg mobile.
Click to expand...
Click to collapse
Sometimes I got that message to, but it fixed when I replugged the usb, or change the usb port.
Try plug it on other usb port. If it still failed, try with other PC (install driver first of course).
If it also failed, try using other cable.
Sent from my LG-P970 using Tapatalk
Even I was facing similar problem yesterday after I installed Marvel's Custom Rom & I thought its a bug, but I googled and found a solution. 'Switching off the phone, removing the battery and inserting it again and turning it on' : This solved my problem!
denclaud said:
Still not working bud.
Click to expand...
Click to collapse
Ok. And there is always "not installing the drivers" issue. Try to install latest L mobile drivers. I believe the version was 3.6
Pondera said:
Ok. And there is always "not installing the drivers" issue. Try to install latest L mobile drivers. I believe the version was 3.6
Click to expand...
Click to collapse
Yes I already have the latest drivers but still...
Do you think its related to the cable ?
Try RomManager. Download it, install,open, find fix permissions, run it, reboot and everything should be fine again ;-) dont just run fix permissions from cwm, since it doesnt work. Use RomManager.
Sent from my LG-P970 using Tapatalk

Need help with connecting to PC

Hello I have problem with V28c, I installed it and after week I can't connect my LG to pc, when I connect it finds it as "Unknown device" and shows"Windows has stopped this device because it has reported problems. (Code 43)", I have tryed take off battery, factory reset, all pc connections, restart pc, changed USB cables, changed USB ports, in S/W Update mode it don't connect to pc, and I can't do something with it! Help me please!
MozeAngel said:
Hello I have problem with V28c, I installed it and after week I can't connect my LG to pc, when I connect it finds it as "Unknown device" and shows"Windows has stopped this device because it has reported problems. (Code 43)", I have tryed take off battery, factory reset, all pc connections, restart pc, changed USB cables, changed USB ports, in S/W Update mode it don't connect to pc, and I can't do something with it! Help me please!
Click to expand...
Click to collapse
Got the latest drivers installed? Maybe your usb port broke... check if there maybe is dirt in your usb port. Also if you have the chance, try to use another pc, just in case your pc is the problem. Had the same problem once
Sent from my LG-P970 using xda app-developers app
N00BY0815 said:
Got the latest drivers installed? Maybe your usb port broke... check if there maybe is dirt in your usb port. Also if you have the chance, try to use another pc, just in case your pc is the problem. Had the same problem once
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
Latest drivers installed, I have tryed front and back USB ports and other USB cable. No changes. Now I can't try on other pc
my pc don't recognize my lg p970
MozeAngel said:
Latest drivers installed, I have tryed front and back USB ports and other USB cable. No changes. Now I can't try on other pc
Click to expand...
Click to collapse
i have an lg p970..when i connect it to my pc it not recognize him but the phone is chraging..it's the only thing that the phone does when i connect it to pc.(cammera is not working,it's not vibrating and it dosen't recognize my sd card) sorry for my bad english PLEASE HEL ME!!!!

USB charges but not recognized

im on zeus v7 and windows 7 on laptop...i always used to connect phone via usb to transfer..but suddenly gave me NOT INSTALLED error message and not recognized ..reinstalled drivers and ticked usb debugging and tried diff. ports but nothing happens tho its charging
any ideas?
any help ?
Bro,it happened to me when i was using my old phone.Just use WiFi File Transfer from Play Store if you have got Wifi
Sent from my XT910 using xda app-developers app
thats what i would do but now i have another new friend's phone needs to be rooted and when i connected it now it didnt get recognized too and i have no idea how else to root it without usb..so i have to get usb working :/
Guys any help about this plz?!
P.S :
- phone was recognized on other laptop so nothing wrong with phone
-flash disks are recognized on my laptop so usb is working fine
-is there anyway to root phone thru wifi ? or without pc ?!
Remove the drivers and reinstall the drivers for the USB LG
did that manytimes but if you have a link for usb lg give it to me ..might be diff. ! well i tried everything i know nothing worked out
There must be something wrong with your computer OR you have wrong usb or adb drivers or you dont have them at all..
Try going into recovery or bootloader mode , connect your phone
and see what's on the screen.Btw what system are you using
Sent from my XT910 using xda app-developers app
yeah its a pretty sure smth wrong with pc..cuz i had another o.b last night to root and didnt get recoginzed tho both worked on another pc and flash disks work properly too !
now what just happened when i tried to connect says : one of the usb devices attached has malfunctioned and didnt recognize ( unknown device .. unused port )..i reinstalled drivers and still same..if you have another link for updated lg drivers? or any other ideas?
some possible reasons :
wrong drivers
bad drivers signatures or signatures recognition issues, or drivers wrongly installed
insufficient resources for usb ports
defective cable
defective usb port
try this as soon as possible :
access to win boot menu and disable signature verification. then plug the phone and see if it's recognized. if yes, this simply means you'll need reinstalling windows completely.
PS : don't use hal. if you don't know what this is, ignore that << PS >> : )
Can you tell me what Os are ya using
Sent from my XT910 using xda app-developers app

USB connect issue!

When i connect my Galaxy Mini to computer, It don't show the usb connect, then i can't turn on USB storage or USB terthering.
But it still charging, i just try with 2 usb cable and 2 computer.
How can't i fix it? Thanks!
Sorry i'm bad at English
suicune221 said:
When i connect my Galaxy Mini to computer, It don't show the usb connect, then i can't turn on USB storage or USB terthering.
But it still charging, i just try with 2 usb cable and 2 computer.
How can't i fix it? Thanks!
Sorry i'm bad at English
Click to expand...
Click to collapse
reboot ur phone.
Or maybe drivers. Which OS? And use google to find drivers which are working for that OS version.
Sent from my GT-S5570 using xda premium
I use win7 pro, it still working last week, but not work now
i'll install cook rom, hope it work

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