This method will not delete your token from passcode or disable device , like the minaUSB3.0. If this method now work at first try please just repeat the all process until you got checkra1n done on iphone 7.
Download tools that you will need for JAILBREAK iOS14.4 iphone 7 and iphone 7 Plus.
DOWNLOADS
MINAUSB 1.1
MINAUSB 1.0
MINI LOADER 1.0
MinaLoader 1.0
Virus status: scanned by Avast security.
Compatibility: For Windows computer. .
Download Mina Usb & Mina Loader Latest