iOS 15.7.3 can be jailbroken using the . This is possible because the iPhone 7 contains the A10 Fusion chip, which is vulnerable to the
hardware exploit—a "permanent" vulnerability that Apple cannot patch with software updates. Formacionpoliticaisc Essential Preparation Before starting, ensure you have the following: A Computer
: Palera1n currently requires a Mac or a Linux PC (including a bootable USB with ). Windows users must use a Linux bootable environment. A USB-A Cable : It is highly recommended to use a USB-A to Lightning cable
. USB-C to Lightning cables often fail to put the device into DFU mode correctly. Device Backup : Always back up your data via or a computer before attempting a jailbreak. The Jailbreak Process (Palera1n)
Palera1n is the primary tool for iOS 15.x on checkm8 devices. Formacionpoliticaisc Disable Passcode
disable the passcode, Touch ID, and "Find My iPhone" on your iPhone 7 before proceeding. Download & Launch : On macOS/Linux, download the Palera1n tool and run it via terminal. Connect in DFU Mode
: Connect your iPhone 7 to your computer. The tool will guide you through the button combinations (Power + Volume Down) to enter Automated Injection
: Once in DFU, the tool will automatically inject the exploit and boot the device into a jailbroken state. Palera1n Loader : After the phone reboots, wait a few minutes for the Palera1n Loader app to appear on your home screen. Open it and select as your package manager to complete the installation. Key Considerations Semi-Tethered Nature : This jailbreak is semi-tethered iphone 7 ios 15.7.3 jailbreak
. If your iPhone 7 restarts or runs out of battery, you must reconnect it to a computer and run the Palera1n tool again to re-enable the jailbreak.
: Jailbreaking allows you to install unauthorized apps, customize system themes, and access deeper file system controls.
: It may void your warranty, compromise security, or cause system instability if incompatible tweaks are installed.
: In most regions, jailbreaking is legal for the purpose of software interoperability but does not grant permission to pirate apps. bootable Linux USB to run this jailbreak from a Windows PC?
XinaA15 and Fugu15 Max are designed for A12-A15 chips on iOS 15.0-15.1.1. Do not attempt them on an iPhone 7.
Status: ✅ Fully supported (tethered/semi-tethered)
Palera1n is the undisputed king for checkm8-vulnerable devices. The iPhone 7 (Global and GSM) uses the A10 Fusion chip, which is susceptible to the checkm8 bootrom exploit. This exploit is unpatchable by Apple because it lives in read-only ROM. iOS 15
How to use Palera1n on iOS 15.7.3:
Important: Palera1n is a bootrom exploit, meaning it bypasses SEP (Secure Enclave) restrictions partially. On iOS 15.7.3, you will have full filesystem access, tweak injection, and even passcode protection (though using a passcode with palera1n can cause issues with SEP, so many users disable passcode temporarily).
Q: Can I jailbreak iPhone 7 iOS 15.7.3 without a computer? A: No. Palera1n requires a computer every time you re-jailbreak after a reboot. There is no semi-untethered or untethered option for iOS 15+ on checkm8 devices.
Q: Will iOS 15.7.3 jailbreak work on iPhone 7 Plus? A: Yes, perfectly.
Q: I heard about Cheyote or other iOS 15 jailbreaks. What happened? A: Cheyote (by the Odyssey Team) was canceled. Palera1n is the only active jailbreak for your device.
Q: Can I dual-boot or downgrade after jailbreaking?
A: With palera1n, you can use tools like blackbird to set nonce and downgrade to signed versions only. iOS 15.7.3 is no longer signed, so you cannot downgrade to it if you leave.
Q: Is there a performance hit on iPhone 7? A: Barely. The A10 chip handles rootless tweaks gracefully. However, installing many heavy tweaks or using rootful fakefs can slow down the device due to limited NAND speed. XinaA15 and Fugu15 Max are designed for A12-A15
For the enthusiast: Yes. The iPhone 7 on iOS 15.7.3 can be fully jailbroken using palera1n. You gain root access, theming, filesystem access, and advanced tweaks like Filza, iCleaner Pro, and Crane.
For the average user: No. The lack of passcode support makes the device insecure for daily use containing personal data, banking, or Apple Pay. The inconvenience of having to re-run the jailbreak after every reboot (or battery drain) further diminishes practicality.
Final Verdict: The iPhone 7 on iOS 15.7.3 is jailbreakable via palera1n. However, it is a tether-requiring, passcode-less, rootless jailbreak suitable only for secondary devices, development testing, or nostalgic tinkering. For a usable daily driver on iOS 15, one should consider newer devices (iPhone X with checkm8 + passcode bypass) or abandoning the jailbreak altogether.
While iOS 16 and 17 exist, the iPhone 7 stopped at iOS 15.8.x. Version 15.7.3 is a sweet spot because:
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).