This is the single biggest reason to stay on an iPhone 7 rather than upgrading to an iPhone 8 or X.
The iPhone 7 (A10) is the last iPhone to support 32-bit applications natively. When Apple moved to the A11 chip (iPhone 8/X), they dropped 32-bit support entirely from the hardware.
By jailbreaking iOS 15.7.3 on the iPhone 7, you unlock the ability to run legacy games and apps that were removed from the App Store years ago. With tools like AppSync Unified and various downgraders/emulators, you can resurrect apps that died with iOS 10 and 11. If you are a retro gamer or rely on older enterprise apps, the iPhone 7 is the ultimate device.
| Aspect | Verdict | |--------|---------| | Is it possible? | ✅ Yes | | Easy to do? | ⚠️ Moderate (needs computer + DFU) | | Safe for daily driver? | ❌ No (no passcode = serious risk) | | Best for | Old test device, home automation hub, or second phone |
If you proceed: Use palera1n, accept the lack of passcode, and never reboot without being near a computer to re-run the jailbreak.
If you want security: Stay on stock iOS 15.7.3 – it’s still receiving important security patches.
For an iPhone 7 running iOS 15.7.3, the primary and most reliable jailbreak method is using
. Because the iPhone 7 has the A10 Fusion chip, it is vulnerable to the hardware-based
exploit, making it jailbreakable on almost any firmware it can run. Recommended Tool: palera1n
Palera1n is a developer-oriented jailbreak that supports iOS 15.0 through 15.8.x on A8-A11 devices.
: Semi-tethered (requires a computer to boot into a jailbroken state after every restart). Root Strategy : It is highly recommended to use iphone 7 ios 15.7.3 jailbreak
mode. Rootful is increasingly unsupported, and most modern tweaks are built for rootless environments. : Native support via terminal. : You must use
, a bootable Linux environment on a USB drive, as the tool does not run directly on Windows. Secondary Tool: Dopamine
Dopamine is a semi-untethered jailbreak that is easier to use because it runs via an app on the phone. Compatibility : It now supports devices (like the iPhone 7) on iOS 15.0 through 15.8.x.
: You don't need a computer every time you reboot; you can simply re-jailbreak using the Dopamine app. Important Preparation Backup Data
: Always back up your device via iCloud or Finder/iTunes before attempting a jailbreak. Passcode/Touch ID
: On the iPhone 7, unlike newer A11 devices (iPhone 8/X), you
keep your passcode and Touch ID enabled while jailbroken on iOS 15. Avoid Scams
: Any website claiming to jailbreak iOS 15.7.3 "without a computer" by just downloading an app (like "Cydia Installer" from a browser) is a scam designed for ad revenue or malware. Basic Steps (Palera1n)
: Use a USB-A to Lightning cable (USB-C cables often fail to put devices into DFU mode). Enter DFU Mode
: You will need to manually put your iPhone 7 into Device Firmware Upgrade (DFU) mode for the exploit to trigger. : Execute the palera1n command or boot from your palen1x USB and follow the on-screen instructions. Install Sileo This is the single biggest reason to stay
: Once the device reboots, open the palera1n loader app on your home screen to install Sileo (the modern alternative to Cydia). for a specific operating system like
iOS 15.7.3 can be jailbroken using , a semi-tethered tool based on the hardware-level Jailbreak Overview
is the primary recommendation for iOS 15 devices with the A10 chip.
Semi-tethered, meaning you must reconnect the device to a computer to re-enable the jailbreak if it reboots. Compatibility:
This method works because the iPhone 7's A10 chip has a permanent vulnerability that Apple cannot patch via software. Preparation Requirements A Computer:
You will need a Mac or a PC running Linux. Windows users often use
, a bootable Linux environment on a USB drive, to run the tool. USB-A Cable: It is strongly recommended to use a USB-A to Lightning cable
. USB-C to Lightning cables often fail to put the device into the required DFU (Device Firmware Update) mode.
Always back up your data through iCloud or a computer before starting. General Procedure Boot the Tool:
Launch palera1n on your Mac/Linux machine or boot your PC from the palen1x USB Connect Device: Plug your iPhone 7 into the computer. Enter DFU Mode: Yes, you can jailbreak an iPhone 7 on iOS 15
Follow the on-screen instructions to put the device into DFU mode (typically involving a timed sequence of holding the Power and Volume Down buttons). Execution: The tool will run the exploit and install the loader. Installation: Once the device reboots, open the palera1n loader app
on your iPhone's home screen to install a package manager like Critical Limitations for iPhone 7 Security Features: On iOS 15+, you cannot use a passcode, Touch ID, or Apple Pay
while jailbroken on A10 devices if you use the "FakeFS" (rootful) method. If you use the rootless method, these features may remain functional depending on the specific palera1n version used. Verification:
You can verify the jailbreak status by checking for the presence of the palera1n app or by using tools like iDeviceCentral for guides and status updates. Jailbreaking voids your Apple warranty. Stability:
Some apps with high security (like banking apps) may detect the jailbreak and refuse to run. step-by-step guide for Windows (palen1x) What is Jailbreaking & Is it safe? - Kaspersky 7 Nov 2020 —
Jailbreaking an iOS 15.7.3 is possible because of the bootrom exploit, which affects the A10 chip hardware. The most reliable and widely recommended tool for this specific configuration is Recommended Tools palera1n (Linux/macOS):
The primary tool for iOS 15-16 jailbreaking on checkm8 devices. It offers both "rootless" (modern, better compatibility) and "rootful" (legacy support) modes. palen1x (Windows): Since palera1n doesn't run directly on Windows,
is a bootable USB environment that allows you to run the jailbreak tool on a PC. Dopamine / NekoJB:
Newer semi-untethered options that may support some iOS 15 versions, though palera1n remains the standard for hardware-level exploits on iPhone 7. Preparation Checklist
Yes, you can jailbreak an iPhone 7 on iOS 15.7.3, but with significant limitations.
Palera1n is the evolution of the original checkra1n jailbreak. It is the go-to tool for A10 and A11 devices on iOS 15 and 16. Here is what you need to know specifically about running it on an iPhone 7 with iOS 15.7.3.
Some users want full file system access. Palera1n offers --rootful flag. However, on iOS 15.7.3, rootful can cause storage issues, slow boot times, and conflicts with modern tweaks. Stick to rootless unless you are an advanced user.