iOS 13.4

Apple no longer signing iOS 13.4, preventing downgrades from iOS 13.4.1

Apple on Wednesday stopped signing iOS and iPadOS 13.4, a move on the Cupertino-based company’s part that prevents its users from intentionally downgrading their handset’s firmware version to anything besides the latest release.

Notably, iOS and iPadOS 13.4.1 were only just released last week. Apple typically waits two weeks before closing signing windows for its firmware, but has demonstrated a more aggressive approach to this behavior more recently.

Checkra1n v0.10.1 released with support for iOS 13.4 & 13.4.1, bug fixes

Apple released iOS 13.4.1 to the general public yesterday, and as you might come to expect, this has a few implications for the jailbreak community. Obviously, the unc0ver jailbreak doesn’t support the new firmware, as it can only jailbreak iOS 13.0-13.3. Checkra1n users, on the other hand, should be in the clear following a new update to the jailbreak tool on Wednesday.

Checkra1n co-developer Jamie Bishop took to Twitter this evening to share that checkra1n v0.10.1 had been released. This new update incorporates support for iOS/iPadOS 13.4 & 13.4.1, enabling handsets susceptible to the checkm8 bootrom exploit (A7-A11) to be jailbroken even on Apple’s latest and greatest software updates:

If you’re having issues with Personal Hotspot on your iPhone or iPad, you’re not alone

In this day and age of self-isolation amid coronavirus lockdowns, I've been having lots of issues with my broadband Internet connection (as have a lot of other people) now that many of us are working from home. Network congestion interferes with my work, so when this crisis began escalating I figured I should try using my iPhone's cellular network instead.

Apple stops signing iOS 13.3.1, thwarting downgrades from iOS 13.4

Apple officially stopped signing iOS and iPadOS 13.3.1 Tuesday evening, just one week after releasing iOS and iPadOS 13.4 to the general public as an over-the-air software update.

The closing of the signing window means those who’ve upgraded to the newer 13.4 firmware will be unable to downgrade to 13.3.1. This isn’t a big deal for most iPhone or iPad users, but it’s something that can be particularly unsettling for the jailbreak community as software updates frequently patch jailbreak-centric software exploits.