trying to downgrade from 12.2 with apnonce collision

[binhtien06]

Hello tihmstar, I'm trying to downgrade my 6s+ from 12.2 to 12.1 with the hope that I can get matched apnonce taken from my shsh2. However, the apnonce I got from device is the same even I rebooted the devices few times. Here is the result after using futurerestore, could you help me with this situation? I feel strange because the apnonce got from device should change for every recovery try:

./futurerestore -t 2841611105698342_iPhone8,2_n66map_12.1-16B92_f6f20ac090f0f800f88aa6205e30bfa24b54f524.shsh2 -b Mav10-7.55.01.Release.bbfw -p BuildManifest.plist -s sep-firmware.n66m.RELEASE.im4p -m BuildManifest.plist -w iPhone_5.5_12.1_16B92_Restore.ipsw Version: b8af2bc72bcb54fe1e32084cad1644ef95682b84 - 231 Libipatcher version: 61bd2d642245874aded5acb2df7cba3e815e85f6 - 61 Odysseus Support: yes [INFO] 64-bit device detected futurerestore init done reading ticket 2841611105698342_iPhone8,2_n66map_12.1-16B92_f6f20ac090f0f800f88aa6205e30bfa24b54f524.shsh2 done Found device iPhone8,2 n66map [TSSC] opening BuildManifest.plist [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 [TSSC] opening BuildManifest.plist [TSSR] User specified to request only a Baseband ticket. Request URL set to https://gs.apple.com/TSS/controller?action=2 Sending TSS request attempt 1... response successfully received Found device in Normal mode Entering recovery mode... INFO: device serial number is xxxxxxxxx

[WARNING] -w is ONLY for ApNonce collision! If you didn't intend this, remove the -w flag.

waiting for ApNonce: f6 f2 0a c0 90 f0 f8 00 f8 8a a6 20 5e 30 bf a2 4b 54 f5 24 Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f Got ApNonce from device: 8a 27 77 b4 93 0d 03 1a 83 71 14 b9 20 5c 60 fe fd 41 2c 4f

[Helloyunho]

I don't know It's too late but I got a solution:

1. Update to the signed version
2. Retry futurerestore

And I'm also trying this with 210 shshs and It's been 2 days still no signs of restoring