Iphone 7 Ios 15.7.3 Jailbreak -

Blog Title: The Time Capsule: Jailbreaking the iPhone 7 on iOS 15.7.3 (Palera1n)

Published: April 13, 2026

Reading Time: 4 minutes

If you are holding an iPhone 7 in your hand right now, you are holding a piece of history. Not because it’s the last model with a physical Home button, but because it is the last “cheap” entry point into the modern jailbreak world.

With Apple locking down iOS 16 and 17 tighter than Fort Knox, the iPhone 7 stuck on iOS 15.7.3 has become a cult classic. Why? Because you can jailbreak it. Completely. Tethered, yes, but fully rooted. iphone 7 ios 15.7.3 jailbreak

Here is everything you need to know about running Palera1n on your iPhone 7 running iOS 15.7.3.

The beauty of the iPhone 7 on 15.7.3 is that almost all modern rootless tweaks work perfectly. Here are popular categories:

What does NOT work:

When jailbreaking the iPhone 7 on iOS 15.7.3 with palera1n, you will face a choice: Rootful or Rootless. Blog Title: The Time Capsule: Jailbreaking the iPhone

Recommendation for iPhone 7 users: Use palera1n rootless mode unless you have a specific legacy tweak that requires rootful. Performance on the A10 chip is better with rootless.

Before we talk about jailbreaking, we must understand the firmware.

iOS 15.7.3 was released in January 2023 as a security patch for older devices that could not upgrade to iOS 16. The iPhone 7’s last official major iOS version is iOS 15. Apple has continued to push minor security updates (like 15.7.9, 15.8, etc.), but 15.7.3 is significant because it sits in a sweet spot: it is patched enough to be stable, but old enough that several exploit researchers have had time to analyze its kernel vulnerabilities.

For the jailbreak community, iOS 15.x is the final stop for the iPhone 7. The device is 64-bit (ARM64), not the newer ARM64e (A12+), which means it is easier to jailbreak than modern iPhones. However, it is still protected by Apple’s hardened runtime, SSV (Signed System Volume), and PPL (Page Protection Layer). What does NOT work:

The iPhone 7 is equipped with the A10 Fusion chip. Critically, this chip has an unpatchable hardware exploit known as checkm8. Because this is a hardware-level vulnerability, Apple cannot fix it with a software update.

For iOS 15.7.3, the tool of choice is Palera1n.

The iPhone 7, a legacy device released in 2016, reached the end of its software support lifecycle with iOS 15.8.x. Among its final updates, iOS 15.7.3 represents a critical security patch release. For security researchers, hobbyists, and users seeking to bypass Apple’s restrictive ecosystem, the question of a jailbreak for this specific firmware (15.7.3) on the A10 Fusion chip (iPhone 7/7 Plus) is paramount. This paper investigates the technical feasibility, available exploits, and practical methods for jailbreaking the iPhone 7 on iOS 15.7.3 as of 2026. It concludes that while a semi-untethered jailbreak exists through the palera1n tool (leveraging the checkm8 bootrom exploit), users face significant caveats due to the device’s architecture and the limitations of rootless jailbreak environments.