Q: Plug iPhone during restore, iPhone try to turn on go to apple logo then black screen! PLEASE SOMEONE HELP ME!!!

so I was in the itunes restore proccess because I use to have a jailbreak my cousin then plugged out my iPhone and so i tried with a different computer and it was a Mac and it said error 3014 and now every time I try to turn on my phone it goes to apple logo then black screen please someone help me