I have an iPhone 5s with update 10.1.1 and I was trying to jailbreak my phone using Yalu and the Cydia Impactor anjd it worked! But once i go to open the Mach_Portal app it will give me a white screen for about 10-15 seconds and it'll reboot my phone now i understand that once it reboots that Cydia will be installed but it was'nt. I've tried this countless amount of times but Cydia is never there. Can anyone help me?