error -31 on real mac
What device + iOS version are you on? iPhone 6 - iOS 12.4.3 What checkra1n version are you using? checkra1n 0.9.2 What are the steps to reproduce the issue? 1.put phone into dfu mode 2.run checkra1n 3.get this error ...
What do you expect, and what is happening instead? on checkra1n 0.9.2, i get Exploit failed (error -31), on the console it says [!] Timed out in state 1, assuming we are back to square one with this device. (Error -31). I am on a MacBook4,1 with Yosemite 10.10.5
Any other info, error logs, screenshots, ...?

Same here...
What device + iOS version are you on? iPad Air - iOS 12.4.3 What checkra1n version are you using? checkra1n 0.9.2 What are the steps to reproduce the issue?
- Put iPad into dfu mode
- Run checkra1n
- Get: Exploit Failed (Error code: -31)
It's a matter of keep trying. I had this happen, after a few times and unplugging the device and replugging it it in worked flawlessly.
Tried al least 20 times even with different cables every time i get the same error.
The exploit seems to run in the end but the device becomes painfully slow and cydia works only once... after that it no longer works.
As for the speed I can not speak, but cydia crashing, that I can help with. SSH into the phone via terminal go to var/mobile/library/cydia and delete metadata.cb0. cydia will open again.
Same here...
What device + iOS version are you on? iPad Air - iOS 12.4.3 What checkra1n version are you using? checkra1n 0.9.2 What are the steps to reproduce the issue?
- Put iPad into dfu mode
- Run checkra1n
- Get: Exploit Failed (Error code: -31)
Exactly my issue but I encountered it on my iPad mini 2 and everything was fine.
Hi! I got the same error too several times. So I updated to the latest Mac version available and install all updates from the app store. It worked after that. Maybe you could try that.
I need help, i got same error in my windows