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tihmstar / futurerestore

A hacked up idevicerestore wrapper, which allows specifying SEP and Baseband for restoring
GNU Lesser General Public License v3.0
865 stars 272 forks source link

Downgrade from 12.4.7 to 10.3.3 possible? #323

Open pthon5 opened 4 years ago

pthon5 commented 4 years ago

i try downgrade iphone 6 form 12.4.7 to 10.3.3

pthon5 commented 4 years ago

this my console output: `pthon@iMac-pthon Downgrade % ./futurerestore_macos -t 616843606377510_iPhone7,2_n61ap_12.4.7-16G192_ace27f360777c094faed5e1c9f33f30b66c7e0b6.shsh2 -b Mav10-7.80.04.Release.bbfw -p BuildManifest.plist -s sep-firmware.n61.RELEASE.im4p -m BuildManifest.plist iPhone_4.7_10.3.3_14G60_Restore.ipsw -w Version: b99eb8140d8e6c23f34e950102bb79e61c72384d - 152 Libipatcher Version: f32e41d850f51448bd6c588ead9c7d6455733f3c - 44 Odysseus Support: yes INFO: device serial number is F2LPMWRYG5QT [INFO] 64bit device detected futurerestore init done reading ticket 616843606377510_iPhone7,2_n61ap_12.4.7-16G192_ace27f360777c094faed5e1c9f33f30b66c7e0b6.shsh2 done [TSSC] opening BuildManifest.plist WARNING: Unable to find BbSkeyId node [TSSR] User specified not to request a Baseband ticket. Request URL set to https://gs.apple.com/TSS/controller?action=2 Sending TSS request attempt 1... response successfully received Did set sep+baseband path and firmware [WARNING] failed to read BasebandGoldCertID from device! Is it already in recovery? [WARNING] using tsschecker's fallback to get BasebandGoldCertID. This might result in invalid baseband signing status information [TSSC] opening BuildManifest.plist WARNING: Unable to find BbSkeyId node [TSSR] User specified to request only a Baseband ticket. ERROR: Unable to get BasebandFirmware node ERROR: Unable to find required BbGoldCertId in parameters Request URL set to https://gs.apple.com/TSS/controller?action=2 Sending TSS request attempt 1... response successfully received Found device in Recovery mode Device already in Recovery mode waiting for nonce: ac e2 7f 36 07 77 c0 94 fa ed 5e 1c 9f 33 f3 0b 66 c7 e0 b6 Got ApNonce from device: ac e2 7f 36 07 77 c0 94 fa ed 5e 1c 9f 33 f3 0b 66 c7 e0 b6 Device has requested ApNonce now Found device in Recovery mode Identified device as n61ap, iPhone7,2 Extracting BuildManifest from IPSW Product Version: 10.3.3 Product Build: 14G60 Major: 14 Device supports Image4: true Got APNonce from device: ac e2 7f 36 07 77 c0 94 fa ed 5e 1c 9f 33 f3 0b 66 c7 e0 b6 checking APTicket to be valid for this restore... Verified ECID in APTicket matches device ECID checking APTicket to be valid for this restore... Verified ECID in APTicket matches device ECID [Error] im4m_buildidentity_check_cb: can't find any identity which matches all hashes inside IM4M [Error] getBuildIdentityForIM4M: found buildidentiy, but can't read information [Error] BuildIdentity selected for restore does not match APTicket

BuildIdentity selected for restore: BuildNumber : 14G60 BuildTrain : Greensburg DeviceClass : n61ap FDRSupport : YES RestoreBehavior : Erase Variant : Customer Erase Install (IPSW)

BuildIdentiy valid for the APTicket: IM4M is not valid for any restore within the Buildmanifest This APTicket can't be used for restoring this firmware [Error] APTicket can't be used for this restore Done: restoring failed. Failed with errorcode=-44 pthon@iMac-pthon Downgrade % `

iFred09 commented 4 years ago

hello, it's only available for A7 devices (iPhone 5s, iPad Mini 2-3, Air 1). A8 devices and newer cannot downgrade to 10.3.3.

inix commented 3 years ago

hello, it's only available for A7 devices (iPhone 5s, iPad Mini 2-3, Air 1). A8 devices and newer cannot downgrade to 10.3.3.

@iFred09 Hi,I am not familiar with SHSH or blob. I have a question: can I downgrade iPhone 6 from 12.4.9 to iOS 11.x?