A lot of jailbroken users may meet this issue that cydia is disappeared after they remove one of jailbreak tweaks from their iPhone, or they delete cydia by careless. The text below is introducing YaluFix for you to solve this kind of problem.

YaluFix is compatible with jailbroken iDevices running on iOS 10 ~10.2. It doesn’t support iPhone 7 and iPhone 7 Plus (mach_portal). It can be used on Windows, Mac and Linux. Before we start, you need to remove the original Yalu102 app.

Step1: Download Cydia Impactor and YaluFix tool ipa on your computer.

Step2: After downloading them, please unzip Cydia Impactor. When it’s finished, run Impactor.exe.

Step3: Connect your iDevice to PC using the USB cable, when iDevice is detected by Cydia Impactor, you need to drag YaluFix.ipa to install SuperSU.

Step4: Enter Apple ID and password.

Step5: If you see the reminder that Apple Developer Warning, just click Ok. If it show you error code 150 or 168, that means you have opened iPhone’s two steps verification, you're suggested to enter another Apple ID and password.

Step6: After installing, you need to remove the USB link and check if there is a Happy Chick App on your iDevice.

Step7: Click Settings app, click General ->Device manage -> Trust, and then you’re able to launch Happy Chick App.

Step8: And then, there should be a Yalu102 app on your iDevice. Launch Yalu102, click go and your iPhone will start jailbreaking and rebooting automatically. When this process is finished, you’ll see a cydia app on your iDevice’s screen.

Step9: Finally you need to delete YaluFix app and repeat the step 1 to 8 we just mentioned above.