Set up the device even if you don't have the original Apple ID.
Disclaimer: Use this tool only on devices you legally own. This process typically involves wiping the device data.
How to Bypass Passcode and Activation Lock with BigBroActivator-Ramdisk v2
Locked out of your iPhone? Whether you've forgotten your passcode or are stuck on the "iPhone Unavailable" screen, has emerged as a powerful, free solution for bypassing these restrictions on older iOS devices.