Pwn20wnd updated the unc0ver jailbreak Saturday afternoon, officially bringing it up to version 3.5.6 with increased support for A12(X) devices running iOS 12.1.3-12.4.
As you might recall, Pwn20wnd released unc0ver v3.5.5 earlier this week with SSH support on the aforementioned device and firmware combinations, but citing a Tweet shared just this afternoon, the latest unc0ver update adds support for remounting and restoring the RootFS on those same devices: