iOS Jailbreaking: iOS 14.0 Beta 1 jailbroken on devices up to the iPhone X with checkra1n – work still needs to be done for a public release so “eta is as always [s0n]”

At WWDC two days ago, Apple unveiled iOS and iPadOS 14 to the public then promptly released Beta 1 for testing. For quite some years, major version betas weren’t able to be jailbroken but thanks to checkra1n and its underlying unpatchable exploit, that is just about the change!

iOS 14.0 Beta shown jailbroken with checkra1n

iOS 14 Beta 1 is already jailbroken thanks to the checkm8 exploit! (Image from DanyL’s Tweet)

Due to the fact that the checkra1n jailbreak uses checkm8, which is an unpatchable exploit using hardware vulnerabilities, new iOS releases do not deter the ability to run unsigned code on devices up to iPhone X & iPad Pro 2nd generation. However, updates to the operating system change how various parts of it work so the actual jailbreak may not work if the changes are major enough as was the case with iOS 14.0 Beta seeing as it is a new major release.

As a result, the current version of checkra1n (0.10.2) can’t jailbreak iOS 14.0 Beta but DanyL together with s1guzasbingner and littlelailo have been hard at work jailbreaking this new version of iOS! This news came in the form of a tweet by DanyL which showed a presumably jailbroken instance of iOS 14.0 Beta with the checkra1n application and Cydia present in the newly introduced App Library. From the image’s resolution, it seems that the screenshot was taken on an iPhone 6S, 7 or 8 which are all checkm8 vulnerable devices that can also run iOS 14.0 Beta.

What to expect? Which devices will be supported?

While the A11 SoC is nearing its 3rd birthday, checkm8 still supports over half of the devices supported by iOS 14 at the current point in time which gives it a significant potential user base!

As things stand, a decent deal of work still needs to be done before a version of checkra1n (or another checkm8-based jailbreak) is publicly released with support for jailbreaking iOS 14’s betas and it’s also important to note that when this happens, new betas may break the jailbreak. Due to this, DanyL has stated that the “eta is as always [s0n, corrected from wen]” meaning that there is no definite estimate as to when it’ll be possible to jailbreak iOS 14’s Betas.

Provided the checkm8 exploit only supports devices up to those using the A11 SoC, an iOS 14 jailbreak devised by the checkra1n team will support the following devices:

  • iPhone 6S to iPhone X including the iPhone SE (1st generation)
  • iPod Touch 7th generation
  • iPad mini 4
  • iPad Air 2, iPad 5, iPad 6 and iPad 7
  • iPad Pro 9.7-inch, 10.5-inch and 1/2nd generation 12.9-inch

Conclusion

It is important to state that running iOS betas as your daily driver isn’t the best of ideas especially if they’re of a major iOS version. Running a potentially experimental jailbreak on these an even worse idea so if/when checkra1n is updated to support iOS 14 betas, make sure you run it on a secondary/non-critical device!

checkra1n website: https://checkra.in/

checkra1n’s Twitter: https://twitter.com/checkra1n