Arduino+a5+checkm8+exclusive — Upd
Checkm8 supports a wide range of devices, but the holds a special place in this ecosystem for several reasons. First, the hardware requirements for exploiting A5 chips are simpler and more standardized compared to later chips. Second, the jailbreak and iCloud bypass communities have adopted it heavily, creating a massive repository of exclusive tools specific to the A5 [2†L29-L32]. Third, A5 devices (iPhone 4s, iPad 2, iPad Mini 1, iPod Touch 5) are widely available, affordable, and perfect for learning about hardware-level iOS security.