Step 1 : Download and Install Cydia Impactor
(Make sure that you download the latest version)
Step 2 : Download mach_portal+yalu-b3.ipa for iOS 10.1.x Jailbreak
Step 3 : Run Cydia Impactor and connect your iPhone, iPad or iPod to the computer.
Step 4 : Drag and drop downloded mach_portal+yalu-b3.ipa to Cydia Impactor
Step 5 : Provide your Apple ID user name and password to sign the mach_portal+yalu-b3.ipa
(These details will only sent to Apple for Application Signing process
Step 6 : After Installing go to Settings > Generel > Device Management and tap on your Apple Id and Trust Cydia App