e260V2 bricked (not rockbox question)

[pplui]

Hi, (i am looking for help everywhere)
I have several sansas (e250V1, e250R, e260 and e260V2). All of them with rockbox but not the V2 (some of them with reverseBL and multiBL)
My daughter use to use the 260V2, and she told me that sometimes it toke forever to boot up /update database.
I upgraded the firmware use the sansa updater, and after that, my sansa is bricked (out of warranty, for sure)

Right now, when i turn it on, it hangs in the welcome screen with Sandisk and sansa (in blue) below.
If i connect it a windows PC (directly to the usb port using a cable that i know that works) after 5 seconds windows says:"USB device not recognized"

Also, i was playing with the hold switch, and it works as expected:if i boot with the hold switch in orange, the sansa says: please unlock the hold switch, system shutdown"

I tried to enter in msc (or mtp) mode by turning it off, switching hold to orange, pressing "left arrow" (or any other key) and pluging it directly to the usb and nothing happens.

Can some one give me clue how to solve it?

Thanks!!
Edit/Delete Message

[LambdaCalculus]

Sorry, the v2 Sansas aren't supported by Rockbox, thus they're not supported on these forums.

You're best off asking at the AnythingButIpod forums for help on the v2.