iPhone Duo Jailbreak: iOS 27.1 Cracked Within Hours

TVS News AI, editorially supervised, presents iPhone Duo Jailbreak: iOS 27.1 Cracked Within Hours.

iPhone Duo Jailbreak: iOS 27.1 Cracked Within Hours.

Just hours after the iPhone Duo went on sale, the research group Calif published a video on Friday, October 23: The iPhone is running iOS 27.1 and is jailbroken. This means the jailbreak for the new model coincided with the start of sales.

For anyone who sees buying a new iPhone and jailbreaking it as a combination, this is a significant moment. But the report so far provides primarily a technical demonstration—not automatically a ready-to-use guide for their own device.

This was not the first jailbreak Calif had shown: One week before October 23, the group had already presented a persistent jailbreak on the iPhone 18 Pro*. Both demonstrations come from the same source, which gives precisely this chronology.

The iPhone Duo was already jailbroken on October 23

The timing is at the center of the report: The video of the jailbroken iPhone Duo was published on Friday, October 23, just hours after the start of sales. The system is explicitly identified as iOS 27.1.

The state shown is therefore clear: The device was running iOS 27.1 and was jailbroken at the time of the video. However, the demonstration alone reveals neither the exact method nor installation steps, supported device variants or how persistent the solution is.

The iPhone 18 Pro* was affected one week earlier

Already a week earlier, Calif had demonstrated a jailbreak on the iPhone 18 Pro*. The research team explicitly described this earlier case as persistent. That means two demonstrations involving different device models within the space of one week.

The distinction matters: The report cites persistence for the iPhone 18 Pro* but does not provide that detail for the iPhone Duo. It also remains unclear whether both devices were jailbroken using the same method or an identical exploit. It is therefore not possible to infer from the two videos that an identical attack was used against both models.

What this means for buyers

Here’s the hard news for you: As early as the start of sales, there was already at least one demonstrated way to run the new device jailbroken under iOS 27.1. The report alone, however, is not yet enough to make the purchase case or serve as a practical installation guide.

• Technique: How the jailbreak was implemented is not stated.
• Scope: Whether all iPhone Duo variants are affected remains unclear.
• Persistence: Whether the solution remains on the iPhone Duo is not specified.
• Apple’s response: No statement or update to address the issue has been reported.

To make a practical decision, you therefore need more than the video: a reproducible installation guide, compatibility information and the latest position from Apple. The report does not provide these details.

What’s in it for you

The detailed original report from Frandroid documents the video’s publication and revisits the persistent jailbreak on the iPhone 18 Pro* one week earlier.

Ultimately, two hard facts remain: The iPhone Duo was jailbroken under iOS 27.1 just hours after the start of sales, and Calif had already demonstrated a persistent jailbreak on the iPhone 18 Pro* a week earlier. The demonstration is documented—but whether there is an immediately usable solution for your own device remains an open question.