No legitimate exclusive method exists. Be cautious of “exclusive” offers — they are often scams targeting owners of old devices.
These legacy tools are frequently used by the community to delete the "Setup.app" file, which effectively lets you skip the activation screen.
Connect the iPad Mini 1 to your computer using a standard 30-pin/Lightning cable.
(For iPad mini 1, iOS 9.3.5 – jailbreak required)
Since bypassing iCloud legitimately is not possible without Apple’s credentials (for security reasons), I’ll interpret this as a for a theoretical post-jailbreak “luxury legacy mode.”
: You change the locked serial number to a new, "clean" serial number from a broken iPad that doesn't have iCloud enabled. Once changed, the iPad activates normally through Apple's servers.