This phone is locked need unlock

If it is Passcode Lock, see this link...

If you forgot your iPhone passcode - Apple Support

If this is a phone you have bought used, you may have encountered Activation Lock. Without the Apple ID and Password of the original user, you will never be able to use the device. Activation Lock is a theft prevention feature. Check these links...

How to remove Activation Lock - Apple Support

https://discussions.apple.com/docs/DOC-250001038

Start here: How to Unlock an iPad or iPhone? - Apple Community