Here is my tutorial explaining how to jailbreak your iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPad Air 2, iPad Pro (1st and 2nd generations) running iOS 12 versions 12.0, 12.1 and 12.1.2 without a computer, using the Unc0ver software to get Cydia on your iDevice. Tutorial in French.
Jailbreak website link: https://jailbreaks.fun/
SUPER comme explication !