Exploit loop

[AppleInternal]

Tell us about your setup:

1. What iDevice are you using? iPhone10,6 and iPhone9,3
2. On what version of iOS is it? 15.6 (RC)
3. What version of checkra1n are you using? 0.1337.0
4. What is your host system (OS version? Hackintosh? VM? etc.)? Hackintosh (macOS 12.5.1 (21G83)) CPU: AMD Ryzen 5 2600
5. How are you connecting to the device (USB-A? USB-C? Apple/3rd party cable? Through a USB hub?)? USB-A cable

What are the steps to reproduce the issue?

1. Download checkra1n 0.1337.0
2. Download PongoOS https://drive.google.com/file/d/1lEu8mBFAwsphX6z3GpHWiDmwdaRyPRUr/view?usp=sharing
3. Try to boot PongoOS ...

What do you expect, and what is happening instead? Exploit loop

Did you see a popup on the device stating it entered "Safe Mode" due to an error? No

Does the issue also occur if you tick "Safe Mode" in the checkra1n options? Idk

Any other info, error logs, screenshots, ...?

• [01/04/23 22:46:11] : DFU mode device found
  • [01/04/23 22:46:11] : == checkm8 trigger stage ==
  • [01/04/23 22:46:12] : Checkmate!
  • [01/04/23 22:46:12] : Device should now reconnect in download mode
  • [01/04/23 22:46:12] : DFU mode device disconnected
  • [01/04/23 22:46:12] : DFU mode device found
  • [01/04/23 22:46:12] : Device reconnected in DFU mode, starting over
  • [01/04/23 22:46:12] : Checking if device is ready
  • [01/04/23 22:46:12] : Attempting to perform checkm8 on 8010 11
  • [01/04/23 22:46:12] : Setting up the exploit
  • [01/04/23 22:46:12] : == checkm8 setup stage ==
  • [01/04/23 22:46:17] : Entered initial checkm8 state after 1 steps
  • [01/04/23 22:46:17] : Stalled input endpoint after 1 steps
  • [01/04/23 22:46:17] : DFU mode device disconnected
  • [01/04/23 22:46:18] : DFU mode device found
  • [01/04/23 22:46:18] : == checkm8 trigger stage ==
  • [01/04/23 22:46:18] : Checkmate!
  • [01/04/23 22:46:18] : Device should now reconnect in download mode
  • [01/04/23 22:46:18] : DFU mode device disconnected
  • [01/04/23 22:46:19] : DFU mode device found
  • [01/04/23 22:46:19] : Device reconnected in DFU mode, starting over
  • [01/04/23 22:46:19] : Checking if device is ready
  • [01/04/23 22:46:19] : Attempting to perform checkm8 on 8010 11
  • [01/04/23 22:46:19] : Setting up the exploit
  • [01/04/23 22:46:19] : == checkm8 setup stage ==
  • [01/04/23 22:46:24] : Entered initial checkm8 state after 1 steps
  • [01/04/23 22:46:24] : Stalled input endpoint after 1 steps
  • [01/04/23 22:46:24] : DFU mode device disconnected
  • [01/04/23 22:46:24] : DFU mode device found
  • [01/04/23 22:46:24] : == checkm8 trigger stage ==
  • [01/04/23 22:46:24] : Checkmate!
  • [01/04/23 22:46:24] : Device should now reconnect in download mode
  • [01/04/23 22:46:25] : DFU mode device disconnected
  • [01/04/23 22:46:25] : DFU mode device found
  • [01/04/23 22:46:25] : Device reconnected in DFU mode, starting over
  • [01/04/23 22:46:25] : Checking if device is ready
  • [01/04/23 22:46:25] : Attempting to perform checkm8 on 8010 11
  • [01/04/23 22:46:25] : Setting up the exploit
  • [01/04/23 22:46:25] : == checkm8 setup stage ==
  • [01/04/23 22:46:30] : Entered initial checkm8 state after 1 steps
  • [01/04/23 22:46:30] : Stalled input endpoint after 1 steps
  • [01/04/23 22:46:30] : DFU mode device disconnected
  • [01/04/23 22:46:31] : DFU mode device found
  • [01/04/23 22:46:31] : == checkm8 trigger stage ==
  • [01/04/23 22:46:31] : Checkmate!
  • [01/04/23 22:46:31] : Device should now reconnect in download mode
  • [01/04/23 22:46:31] : DFU mode device disconnected
  • [01/04/23 22:46:31] : DFU mode device found
  • [01/04/23 22:46:31] : Device reconnected in DFU mode, starting over
  • [01/04/23 22:46:31] : Checking if device is ready
  • [01/04/23 22:46:31] : Attempting to perform checkm8 on 8010 11
  • [01/04/23 22:46:31] : Setting up the exploit
  • [01/04/23 22:46:31] : == checkm8 setup stage ==
  • [01/04/23 22:46:34] : Entered initial checkm8 state after 4051 steps
  • [01/04/23 22:46:34] : Stalled input endpoint after 1 steps
  • [01/04/23 22:46:35] : DFU mode device disconnected
  • [01/04/23 22:46:35] : DFU mode device found
  • [01/04/23 22:46:35] : == checkm8 trigger stage ==
  • [01/04/23 22:46:35] : Checkmate!
  • [01/04/23 22:46:35] : Device should now reconnect in download mode
  • [01/04/23 22:46:35] : DFU mode device disconnected
  • [01/04/23 22:46:36] : DFU mode device found
  • [01/04/23 22:46:36] : Device reconnected in DFU mode, starting over
  • [01/04/23 22:46:36] : Checking if device is ready
  • [01/04/23 22:46:36] : Attempting to perform checkm8 on 8010 11
  • [01/04/23 22:46:36] : Setting up the exploit
  • [01/04/23 22:46:36] : == checkm8 setup stage ==
  • [01/04/23 22:46:41] : Entered initial checkm8 state after 1 steps
  • [01/04/23 22:46:41] : Stalled input endpoint after 1 steps
  • [01/04/23 22:46:41] : DFU mode device disconnected
  • [01/04/23 22:46:41] : DFU mode device found
  • [01/04/23 22:46:41] : == checkm8 trigger stage ==
  • [01/04/23 22:46:41] : Checkmate!

[sassa7777]

Use Intel CPU

[AppleInternal]

Use Intel CPU

My friend have AMD CPU (Ryzen 5 2600) and all working normal

[WhitetailAni]

AMD CPUs have a lot of problems when it comes to checkm8. A few work but most don't. I tried running checkra1n on my Zen 2 CPU and it didn't work, same error as you did. You can keep trying in hopes that it works but you'll have much better success rate on an Intel CPU.