Clearing browser and app caches can help reduce System Data or Other storage on your iPhone. Prevent your iPhone from storing old messages and emails so that the System Data does not fill up quickly. If you're looking for a quick way to free up System Data or Other storage, consider backing up and erasing your iPhone to start afresh.

Go to Settings > General > Reset, then tap “Reset All Settings.” This step won’t delete your data, but it will reset system settings like Wi-Fi passwords and wallpaper. It can help clear out any lingering system data that the other steps didn’t catch.

How to fix the iPhone System Data storage bug You can see how much storage System Data is using on your iPhone by heading to Settings > General > iPhone Storage > Go to the very bottom > System Data Try powering off and powering on your iPhone Head back to iPhone Storage > System Data to see if that’s helped

Open Settings > General > iPhone Storage. Tap the Offload Unused Apps option that appears under Recommendations. If the above option is unavailable, go back to Settings > App Store and toggle on Offload Unused Apps. You can also offload apps manually.