We are NOT responsible for any data loss, or the result of a device being bricked. The user of this program accepts responsibility should something happen to their device. While nothing should happen, jailbreaking has risks in itself.

If your device is stuck in recovery, please run futurerestore --exit-recovery, or use irecovery -n.
If you're unable to get out of recovery via these methods please restore with iTunes or Finder.
palera1n will never work in VirtualBox, VMware or any virtual machine that doesn't support PCI passthrough.

Requirements

A checkm8 vulnerable iOS device on iOS 15+ (A8 - A11)
- On A11, you must disable your passcode while in the jailbroken state (on iOS 16, you need to reset your device before proceeding with palera1n).
USB-A cables are recommended to use, USB-C may have issues with palera1n and getting into DFU mode.
Technical explanation
The BootROM will only enter DFU if it detects USB voltage, which boils down to checking whether a certain pin is asserted from the Tristar chip. The Tristar does this based on the cable's accessory ID, and apparently USB-A and USB-C cables have different accessory IDs, and the one of the USB-C cables makes the Tristar not assert the USB voltage pin.
A Linux or macOS computer
- AMD CPUs (not AMD Mobile) have an issue [with (likely) their USB controllers] that causes them to have a very low success rate with checkm8. It is not recommended that you use them with palera1n.
  - If your device does not successfully jailbreak, try a computer with an Intel or other CPU
Apple Silicon Macs with USB-C
- USB-C port on Apple Silicon Macs may require manual unplugging and replugging of the lightning cable after checkm8 exploit.
- This problem may be solved by connecting via USB hub, though extensions can vary.

Troubleshooting

Make sure you're following the guides provided here, also when asking for support make sure you provide full details on your device, such as:

iPhone/iPad/iPod
iOS Version
Passcode enabled?
Verbose from palera1n (specifying -Vv within palera1n)
Panic logs, if panicked then send latest panic-full log from your device.

Then join the Support Discord