Error code 2003 when trying to restore iphone 3g

So i recently found my old Iphone 3g and realized it was jailbroken so i tried to get rid of the jailbreak with restore itunes but to no avail, so after countless times of going into dfu mode i went with erase all content and setting, well now my phone wont even turn on, so i have no idea what the problem is and i have also gone into dfu mode when the phone wouldn't boot up (just the apple logo) one last thing, when i try to restore it the screen flashes but stays as a black screen, im considering just trashing the phone unless there is a fix

Someone help please