Working within the root directory of iOS 9.3.5 is risky. Before deleting any files in /System or /var , ensure you have a backup. On iOS 9.3.5, a "Boot Loop" caused by deleting system files often requires a full restore, which could result in losing data if your hardware is failing.

The challenge was that iFile IPA wasn't available on the App Store; it was distributed as an IPA file, which required sideloading onto the iPhone. For those unfamiliar, sideloading refers to installing an app on a device without using the official app store. This process was not straightforward and required some technical knowledge.