Install iOS 12.4 Beta If You're Having Major issues
If you can't stand iOS 12.3.1's performance on your iPhone, iPad, or iPod touch, you should think about installing the iOS 12.4 beta.
Apple's betas have been known to solve severe battery drain issues, random reboots, connectivity issues, and user interface lag. We also expect the iOS 12.4 beta to fix some lingering bugs.
If you're struggling on iOS 12.1.4, iOS 12.2, iOS 12.3, iOS 12.3.1, or another version of iOS, you might want to give the iOS 12.4 beta go.
If you don't see a significant change in performance, you can always drop back down to iOS 12.3 or iOS 12.3.1.
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