There are many good reasons to jailbreak your phone, especially if you would like to customize your device according to your liking and want to try out tweaks/apps outside of Apple’s App Store. However, sometimes jailbreaking can also cause some problems. For example, there is the recent bootloop issue after jailbreaking iOS 9.
iOS 9 was released in September, and after just a month, an iOS 9 jailbreak arrived, thanks to the efforts of the Pangu jailbreak team. This is one of the fastest jailbreaks ever. Now, there are many jailbreak tweaks which are supported on iOS 9, and you may have already updated your device to iOS 9 and even jailbroken it. This time though, many jailbroken iPhone users are facing the problem of random bootloops (known as boot loops of death) on their devices. To fix this issue, here’s what you should try.
Fixing iOS 9 jailbreak bootloops
As per a thread on Reddit, “The iOS 9 jailbreak has been causing mysterious “boot loops of death” on certain (if not all) devices. It is believed this is caused by “unclean reboots.” So the problem apparently results from unclean shutdowns.
An unclean shutdown is basically a shutdown that does not properly unmount the HFSJ+ file system on iOS. Fortunately, there’s a solution to this problem.
To perform a clean shutdown, just slide to power off in the power down screen. Apart from that, Cydia’s own reboot button which is displayed after installing certain tweaks is also a good solution for clean shutdown.
Also note that you should not reboot by holding the Home+Power button if you are using a jailbroken iOS 9 device.
The bad news is that if you are currently stuck in Boot Loop of Death, then unfortunately, restoring is the only option.
Keep in mind that iOS 9.0.2 has recently stopped being signed by Apple, and the current iOS 9.1 does not yet have a jailbreak. So if you are on an older iOS version, then hang in there and don’t update until and unless an iOS 9.1 jailbreak arrives.