If you download justatech checkra1n 0.12.4 windows.zip and extract it, you will typically see the following instructions:
: Restart your PC and enter the BIOS or Boot Manager to select the USB drive as the primary boot device. Configure Checkra1n Options , select "Allow untested iOS/iPadOS/tvOS versions". A11 devices justatech checkra1n 0.12.4 windows.zip
To prepare your environment, ensure you have a spare USB flash drive (at least 2GB capacity) and that any critical data on your iPhone or iPad is fully backed up. Step 1: Create the Bootable USB Drive If you download justatech checkra1n 0