Prema pisanju na Reddit sajtu, najnoviji iTunes 12.9.4.61 beta onemogucava downgrade iOS verzije cak i ako je Apple jos uvek potpisuje.
U dosadasnjim verzijama, bilo je moguce da skinete ipsw fajl i, uz opciju Option plus update na tastaturi, izaberete ga za restore, ako ga Apple jos uvek potpisuje.
Izgleda da je Apple onemogucio Option plus update/restore (macOS) kombinaciju na toj developer beta verziji.
Ovo znaci da jedino moze da se instalira najnovija verzija iOS-a.
Discovered this as I was trying to update my iPhone XS to iOS 12.1.1 (signed) using an IPSW file I downloaded from IPSW.me. The latest iTunes 12.9.4.61 beta and Apple Configurator 2.8.2 have seemingly disabled the Option+click update and restore method, forcing you to use the latest iOS version (currently 12.1.3).
I replicated this on another machine and spotted somoene asking about it on Twitter.
Za sad je sigurno da iTunes 12.9.2.5, i starije, kao i iTunes 12.9.3.3 verzija, to omogucavaju.
iDownloadblog