How to Avoid / Fix Boot Loop of death (BLoD) caused by Pangu iOS 9 jailbreak

Like most of the newly released jailbreak tools, Pangu jailbreak tool has come with its own problems that early iOS 9 jailbreak users are experiencing. The team Pangu has already released Pangu v1.0.1 to address a number of bugs in the jailbreak tool. However, it seems like the team will have to push another update to its iOS 9 jailbreak to fix the Apple “logo boot loop of death” aka BLoD (as called by many) issue that seems to have hit numerous Pangu jailbreak users.

ios 9 jailbreak

What is Boot Loop of Death (BLoD)?

Basically, Boot Loop of Death or BLoD is a state which initiates when you reboot any of your devices which have been jailbroken using the latest Pangu 9 jailbreak tool. The jailbroken device continues to boot and then enters into an infinite reboot loop cycle. The device will continue doing so until the battery is drained completely and when recharged, it’ll continue with the same boot loop pattern.

According to angelXwind – a jailbreak app/tweak developer – an unclean reboot causes the BLoD. Here’s her theory:

My theory is that unclean shutdowns are, if not the cause, a contributing factor to BLoDs. I’m saying this because I’ve seen a lot of people get into BLoDs just by performing unclean shutdowns. What’s an unclean shutdown, you ask? An unclean shutdown is a device shutdown that does not properly unmount the HFSJ+ filesystem on iOS — this can be holding Lock and Home to force a reboot, or even a kernel panic can cause these.

How to Avoid Apple logo Boot Loop of death (BLoD)

Here are the tips to avoid getting into “Boot Loop of Death” (BLoD):

Already jailbroken on iOS 9.0.x?

If you have already jailbroken your devices on iOS 9/9.0.1/9.0.2 using Pangu jailbreak, it’s advised to avoid rebooting your device as much as possible. Do not let your device run out of battery juice to avoid any sort of reboot that may result in a Boot Loop of Death.

Avoid installing any tweak which is not yet compatible with iOS 9 – 9.0.2. Check out the list of iOS 9 compatible jailbreak tweaks.

Jailbroken on iOS 8.4?

Avoid upgrading to iOS 9 just to jailbreak your device on latest software version with Pangu 9 jailbreak until the team Pangu finds out the culprit causing BLoD and fixes it. Stay with iOS 8.4 jailbreak for the time being.

How to Fix Apple logo Boot Loop of death (BLoD)

The only way to fix the Boot Loop of death (BLoD) is by restoring your device using iTunes, re-jailbreaking it with Pangu, installing important updates available in Cydia, making sure device do not get stuck in the boot after a reboot, and finally restoring your device from the backup. Here are the step-by-step instructions:

  1. Make sure to backup your device using iTunes.
  2. Put your device into DFU mode:
    1. Open iTunes and connect your device to your computer;
    2. Hold down both the Power and Home buttons simultaneously for 10 seconds;
    3. After the 10 seconds, release the Power button but continue holding the Home button until iTunes detects your device in recovery mode. The screen will stay black (that’s DFU mode.)
  3. Now fresh restore your device using iOS 9.0.2 firmware and set it up as a new device. Do not restore from your backup. Here are your required links to restore:
  4. While setting up your device as new, skip the iCloud, Touch ID/Passcode, and iTunes/App Store setup.
  5. Grab the latest version of Pangu and then jailbreak iOS 9.0.2 on your device using these links:
  6. After jailbreaking your device, turn off the Airplane mode to get WiFi/Data connection access and launch the Cydia app that should now be on your home screen.
  7. After launching Cydia, let it load completely without any interruption. Once it’s loaded up fully, search and install Cydia Substrate. After the installation, your device should automatically respring.
  8. After the respring, hold down the power button and Slide to turn off your device. Now turn it back ON.
  9. Now perform a hard reboot of your device by pressing and holding both the power and home button simultaneously until the Apple logo appears on the screen. Now release both buttons.
  10. That’s it! Your device should not be experiencing the boot loop of death anymore. It’s time to restore your device from your backup and setup Touch ID/Passcode, iCloud, and Apple ID.

Now that you are out of the Boot Loop of Death, now be cautious of installing jailbreak apps or tweaks of Cydia store. Only install those tweaks which are compatible with iOS 9 iOS 9.0.2, or iOS 9.0.2.  An incompatible jailbreak tweak may end up entering your device into BLoD. Here’s an up to date list of iOS 9 – 9.0.2 compatible jailbreak tweaks.

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