Hello Extraordinary FAB (Love your name lol)
This means that your phone is in download mode for flashing a new rom.
You can get out of this mode by removing the battery and then reinserting the battery and turning the phone back on.
If you still get to this screen it means you have a corrupt rom and will need to reflash a new stock rom.
'''== Warning flashing new roms will delete all data that is on the device. Flashing the wrong rom will brick (permanently damage) your device =='''