Hum, where did you get the 2.0 firmware !!!!!
You have a colored Opused and using Public 2.0 firmwre is really a bad thing to do, you may brick your device or render it unusable/unupdatable...
Never, I really say *NEVER* use 2.0 Public Firmware on Opuses "2.0" *NEVER*
Try to redownload the 2.1 from the bookeen website in case of theire have reported corrupted download on the 2.1/1.6 firmware that could brick the device. Please be careful.