Unlock Help

You have encountered Activation Lock a theft prevention feature. Without the Apple ID and Password of the original owner, you will never be able to use the device. Check these links...

Turn off Activation Lock - Apple Support

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

The device can be recycled at any Apple Store.

Here are the Apple support pages that outline the Activation Lock - and the only mechanisms by which it can be turned off:

https://support.apple.com/en-us/HT201365

https://support.apple.com/en-gb/HT201441

As you will discover, unless you are the owner of the AppleID that was last used to activate the device, or unless you can secure the cooperation of the previous owner, you’ll not be able to defeat or bypass the Activation Lock. Without documentary evidence that you are the original owner (such as sales receipt showing the serial number), Apple won’t assist - and nobody here will be able to help you.

Sorry - but you’re short of options.

Apple will not help you if you do not have the original bill of sale with the serial number shown and proper ID. It will basically be a paperweight unless the original owner signs out of iCloud and turns off Find My.

It's useless to you and you will NEVER be able to bypass Activation Lock.

Read this link about used devices --> The All Too Common SAD Reality of Buying … - Apple Community