J3 dead after upgrade
Yesterday I 've upgraded my J3 with the last firmware 2.26 on the official website. My J3 was completly charged and the upgrade worked good. Then I used my cowon with no problem and put an alarm for the morning. But today my cowon is dead, it don't work when I turn on the power button, don't work when I rest it, and my computer don't recognize it like a stockage device ! Then I don't know what to do because I can't try to format it or restore the last firmware. Any ideas ?
And ... sorry for my english !