If you are on an older device (like an iPhone 4S or 5) running iOS 7–9, the general process for installing a repo-based tweak was as follows: Open Cydia : Navigate to the Add Repository

: Cracked or unauthorized software can cause system instability. These apps and tweaks may not be optimized or thoroughly tested for your device and iOS version, leading to crashes, freezes, or even a complete device malfunction.

your device