Got some flashing problems here.
I decided to flash Rootfs and then eMMC.

So I followed the wiki.
- 1st flash rootfs, without -R
- Then without dissconnecting or anything flash eMMC

But after flashing rootfs, windows started reinstalling the n900 usb drivers cause "it's a new device all of a sudden" it lost connection to it and the eMMC part does not recognize the phone.
Now, the phone is stuck after rootfs flash, and did not reboot cause I didn't put -R.

Should I reboot it myself? take out the battery? what should I Do?

Bottom line, I flashed rootfs, without "-R" now it's waiting.
Shell I reboot? remove battery? what??