Q: فتح كلمه السر

If you have forgotten the passcode for the lock screen, follow the steps in this article to restore your phone on your computer:

If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

If you can't set up the phone again because you don't know the Apple ID or password anymore, that has been used to set it up the first time, check this article to help with your Apple ID and password:

Apple - Support - Apple ID

In case the Apple ID on the phone is not yours, and you have a second hand device, read these articles:

iCloud: Remove your device from Find My iPhone

Find My iPhone Activation Lock