Have you tried pulling the battery out and putting it back in &&&&& Charging it using the phone charger instead of the USB cable. Not sure if you know this a lot of front port on PCs dont have enough power going through them to charge the N900. Especially when the screen is lit. & if you haven't got the charger try plugging it into the back of the PC. Remember some usb adapters that you can use to charge your phone won't work because it transmits data down the wrong line(s)?.?.? Or something like that which makes it beleive it's a computer which won't charge but will show the light glowing. I'd reccomend this before flashing could save time.