USB can´t be connected as universal Mass Storage

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What steps will reproduce the problem?
1.Connecting the phone to any computer.
2.The universal USB mass storage has been lost.
3.USB cannot be connected to any computer, as all mass storage hardware. People 
have to install the LG driver previously. It´s not like an usual Android USB 
universal mass storage function.

What is the expected output? What do you see instead?
A fix to solve the problem in the new version.

What version of the product are you using?
1. gapps-gb-xxxx (LATEST)
2. system-gb-xxxx (LATEST)
3. boot-gb-xxxx (LATEST)
4. ...

On what operating system?
XP, Vista.

Do you have logcat or dmesg ?
 (adb logcat -d > logcat.txt, adb shell dmesg > dmesg.txt)
No.
What version of the *Official LG* Firmware were before using Custom
firmware ?
(V20G, V20D, V15x, V16x etc. )
 Official froyo V20G

Please provide any additional information below.

Could you fix it in the nwe version?

Original issue reported on code.google.com by antonio....@gmail.com on 4 Jun 2011 at 10:52

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I also have this issue, though only on Snow Leopard; on Windows 7 it's works 
fine.

Original comment by kura...@gmail.com on 4 Jun 2011 at 11:02

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I have this problem always, in each PC I try to connect it as Mass Storage. 
With the drivers installed, the problem dissapear, but that isn´t an universal 
Mass Storage, it´s like an apple in which you should have preinstalled the 
driver to use the hardware with the PC. It´s not Android´s idea.

Original comment by antonio....@gmail.com on 6 Jun 2011 at 3:14

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Same issue here.  I receive "usb connected" notification (only when debugging 
enabled), but when I click it, screen just flashes and I return to the desktop. 
 I have installed "system-gb-20110529-BETA.zip" and use Win7 x64.

Original comment by janne.ka...@gmail.com on 11 Jun 2011 at 10:31

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Original comment by wkp...@gmail.com on 8 Sep 2011 at 12:26

• Changed state: Unreproducible

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It is easy to reproduce on any clean (without driver on lg-modem in the system) 
computer with Windows XP. Always needed LG drivers for mass storage mounting.

Original comment by Dementey...@gmail.com on 4 Nov 2011 at 7:12

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[deleted comment]

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Same thing happening here, in both XP / Win7.
Device manager reported it as "LG Mobile USB Modem" ( VID 1005 PID 6000 )
Any workarounds?

Original comment by jot...@gmail.com on 3 Aug 2012 at 9:17