Do not drive the extruder works

[Surfovod]

I suspected the firmware.I tried to change drivers and motors in all axes have not worked, and the engine of the extruder is not (the temperature was increased to 220 degrees)
I ask you to send firmware for my printer

Brand Name: Geeetech
Model Number: prusa i3
color: Black
material: Acrylic frame
E3d nozzle size: 0.3
Control board: GT2560
Extruder: MK8 (one)
3D Printer filament: ABS/PLA
3D Printer filament size: 1.75
Design: reprap Prusa i3
Free: LCD 2004 display controller
Max. Resolution: 0.1mm
Max Paper Size: 200*200*180
Black Print Speed: 100mm/s

thanks in advance

[Sherry]

hi ,how about re-downlode the firmware.The firmware please refer to the attachment.