I assume you put the dongle firmware on the FSM dongle? what dongle are you using? what guide are you following? you probably aren't getting help through lack of details given. do you get a blue light come on? I think from memory there is a FSM dongle firmware that does that (E3).
It had a modded firmware to stop the loss of bluray and doesn't show the factory screen. I can't remember if it just turns off again or goes to "Connect the controller using a USB cabl, and then press the PS button" screen. I think you switch your power off from there. Find a different guide.