If you have tried all 10 fixes and still see "Error: Unable to load restore ramdisk," consider these final possibilities:
If you have tried all seven methods above and still see "Error unable to load restore ramdisk", you may be facing a hardware problem. error unable to load restore ramdisk 3utools
Sometimes 3uTools saves a broken ramdisk component even after a re-download. If you have tried all 10 fixes and
Steps:
If 3uTools still fails, download the ramdisk manually. If the IPSW file you downloaded is corrupt,
If the IPSW file you downloaded is corrupt, the ramdisk extracted from it will be unreadable.