my sumsung galaxy tablet 0.7 plus SGH T-869 i was updating from kies firmware, but suddenly become, band version unknown, IMEI unknown, on and it cannot even connect Kies now, i have latest of kies, when i insert USB cable, it says connecting for hours, but no error or nothing, it never connect to Kies, i re-boot also master reset to my tab, it doesn't work either, if anyone can help please!!!!