how can i unlock my iphone four with it being a 4 digit numbers???

[kakared]

I have tried to figure out my iphone four pass code but i can't get in to my iphone because i don't know my 4 digit numbers passcode!!

 

[Rob Phillips]

Welcome to iMore! You'll have to restore your phone using iTunes. This Apple Support article should help: https://support.apple.com/en-us/HT204306