Upload the sketch to the Arduino (if you have all the hardware conneted, upload the 1337 3310 sketch uncomenting the #define EEWRITE)

Copy all the bin files to the EEPROM uploader folder and run it (change the serial port in the code if needed)

Upload the binaries, then click any phone button to end the write process if you're using the 1337 3310 sketch; the phone will beep

Comment again the #define EEWRITE and upload the sketch

Turn on the phone

???

PROFIT!