How do I f/w update??????

Here's the site with the firmware upgrade download: http://www.samsung.com/support/productsupport/download/Model_Select.aspx?type=Digital+Audio+Player(YEPP)&typecode=200600&subtype=Yepp&subtypecode=200601&model=YP-U2JQB/XAA&filetype=FM&language= although I'm sure that the f/w updater is within this program here: http://www.samsung.com/support/productsupport/download/Model_Select.aspx?type=Digital+Audio+Player(YEPP)&typecode=200600&subtype=Yepp&subtypecode=200601&model=YP-U2JQB/XAA&filetype=SW&language= That should help you with your problem. First download and install the first link, then use the tools that are within that program. Once finished, update it with the firmware update and you should be alright.

I has the same problem. You have to push the play button (hold it down), plug it into the computer and continue to hold it down until the computer finds the hardware (about 10 seconds). After that I was able to launch the firmware update. It found the device and installed the new updated firmware. After completion, the device worked fine.

I just went through this today and had to call 1(800)Samsung to resolve. There is a reset hole on the end opposite the USB connector but pressing it made the problem worse (now it boots to 20% and just powers off with no messages). I downloaded the firmware updates but the software could never find the player even though when I plugged into the USB port Windows would see SOMETHING was plugged in.
First make sure the firmware updater software is installed on your PC. Then the key to the fix is to take the player, press and hold the Play button (on top, same as power) and while holding it in then plug into the USB port. Windows hardware wizard will launch. Tell it ok and let it auto find the drivers. From this point when its all done now launch the same software and relaod the firmware and resync from WMP.