Manually put your device into standard DFU mode .
Connect your iPhone or iPad to your PC using a reliable USB cable. ipwnder v1.1 for windows
ipwnder v1.1 - checkm8 based pwndfu tool for windows Found device in DFU mode Sending payload... Device is now in pwned DFU mode! Manually put your device into standard DFU mode
Ensure iTunes is installed for the necessary Apple mobile device drivers. How to Use ipwnder v1.1 for windows