Exploit Failed (-31)

[Igor898718]

Tell us about your setup:

1. What iDevice are you using? iPhone 5s
2. On what version of iOS is it? 12.5.7
3. What version of checkra1n are you using? CLI 0.12.4
4. What is your host system (OS version? Hackintosh? VM? etc.)? Arch Linux
5. How are you connecting to the device (USB-A? USB-C? Apple/3rd party cable? Through a USB hub?)? I use charging cord for my iDevice

What are the steps to reproduce the issue?

1. Connect iPhone to computer
2. Open Checkra1n CLI
3. Click start
4. Enter DFU mode
   ...

What do you expect, and what is happening instead?
I expected finishing laibreak on my iPhone, but saw error report

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?
Yes

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

[XPNGamer]

hey, so there is a known bug with the A7 chip in the version that your using, so it just wont work.