Problem with fastboot - LG Optimus 3D

Hello all. Sorry for my English.
I have a problem with fastboot.
When attack the cable and put the battery on the phone remains with the LEDs on and does nothing.
On the laptop everything is fine but in the desktop no
Using Windows 7 64bit
Thanks to all!!

Buccolieri96 said:
Hello all. Sorry for my English.
I have a problem with fastboot.
When attack the cable and put the battery on the phone remains with the LEDs on and does nothing.
On the laptop everything is fine but in the desktop no
Using Windows 7 64bit
Thanks to all!!
Click to expand...
Click to collapse
You must remove and reinsert the usb cable to get to fastboot mode.

I have tried. The phone is blocked. There are only the LEDs on and the phone does nothing.
When i remove the cable the phone don't show the silver lg logo

I had this sadly, fixed it by reinstalling all drivers for flashing / fastboot / omap

didn't work reinstall all driver...
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I think that you flashed bootloaders for korean version of optimus 3d --> su760. Dont worry, im tried too
Now, how you can repair it. To me worked very well omap4boot from wkparks in version 1.21
Sent from my LG-P920 using xda app-developers app

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If you are good rooted.
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connect it to PC companion and flash latest software.
santoshcoolhere said:
connect it to PC companion and flash latest software.
Click to expand...
Click to collapse
it does not work。。
santoshcoolhere said:
connect it to PC companion and flash latest software.
Click to expand...
Click to collapse
Only thing I got now is blinking red LED when I connect phone to charger or PC (Flashmode and fastboot dead).
Well in that case, go to the nearest Sony center and ask the guys there to fix the issue. Usually fastboot should work but since it doesn't, only they can solve it.

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I recently upgraded both of my computers to Windows 10 and have been moving some files over to my TF700 via USB. Yesterday my computer just stopped recognizing it as a USB device.
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berndblb said:
Did you try to reboot both devices?
Try different USB ports
Click to expand...
Click to collapse
Yeah I've tried both of those. No clue what could have changed overnight.
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