Do not waste hours trying to make iFile stable. Instead, install from Cydia. It is the modern, reliable replacement that fully supports iOS 9.3.5. If you have nostalgia for iFile, keep it installed for the icon, but use Filza for actual work.
For 64-bit devices (iPhone 5s, iPad Air, etc.) that support iOS 12, upgrading will give you better file manager options (Filza still works). But if you are stuck on 9.3.5, rest assured: . Final Conclusion: iFile IPA on iOS 9.3.5 – Work or Not? Does iFile IPA work on iOS 9.3.5? Technically, yes – it opens. Practically, no – it is too broken for real use. ifile ipa ios 935 work
For jailbreakers, iOS 9.3.5 was considered "unjailbreakable" for several years. Then came (for 32-bit devices) and later Home Depot (for some 32-bit devices). But even after jailbreaking, the underlying kernel and sandbox had changed enough to break many legacy tweaks, including iFile. Does iFile IPA Work on iOS 9.3.5? Short answer: Yes, but only partially, and not without caveats. Do not waste hours trying to make iFile stable