But software is what makes the hardware sing. While most users are familiar with (the operating system), few understand the critical, invisible layer beneath it: The Firmware .
However, a "untethered" jailbreak (one that survives a reboot) requires patching the iBoot firmware. On the iPhone 13, this is nearly impossible due to and APRR —hardware memory protections enforced by the firmware. Firmware APPLE iPhone 13
Have you ever had to DFU restore your iPhone 13? Let me know in the comments below. But software is what makes the hardware sing
For the security researcher, the iPhone 13’s firmware is the Mount Everest of hacking—a silent, black slab of silicon that, so far, refuses to be conquered. On the iPhone 13, this is nearly impossible
If iOS is the soul of the iPhone, firmware is the spinal cord. For the iPhone 13, this firmware is a marvel of reverse-engineering resilience, security, and low-level control.
For the average user, this means peace of mind: your data is safe, and the phone will run smoothly for half a decade.