OK. Removed and re-inserted battery.
Waited for USB icon after plugging in.
Flashed eMMC.
Successful.
Unplugged and also removed then re-inserted battery.
Waited for USB icon again.
Flashed FIASCO...

Says it was successful, Nokia screen appeared on phone, yellow LED is lit. How long before it should reboot as the message stated in the "How to" guides?