Signed Firmware Layout

Many of the newer inmusic devices have switched from using unsigned firmware updates to using signed firmware updates. This prevents modifications to the firmware updates unfortunately (although you can likely still modify the OS on the device and boot into the modifications). Whether it will boot using a modified rootfs is untested.

The new firmware layouts have some header information before 0xD00DFEED (the flattened device tree header magic value).

Header Values (prefix before `0xD00DFEED`)

Device	Version	Header (Hex)
SCLIVE2	`4.1.0`	41 5A 30 78 01 00 00 00 00 00 00 00 38 00 00 00 38 00 00 00 98 00 00 00 B8 00 00 00 38 03 00 00 60 00 00 00 04 00 0A 00 01 00 00 00 38 03 00 00 01 00 00 00 07 00 00 00 00 34 2E 31 2E 30 00 45 6E 67 69 6E 65 4F 53 20 75 70 67 72 61 64 65 20 69 6D 61 67 65 00 4A 43 31 31 53 00 4A 50 31 31 53 00 4A 50 32 30 00 4A 50 32 31 00 73 70 6C 61 73 68 00 75 70 64 61 74 65 73 70 6C 61 73 68 00 6B 65 72 6E 65 6C 00 72 6F 6F 74 66 73 00 64 65 6E 6F 6E 2D 31 00 00 00 07 D0 E4 15 1E 00 00 00 0C C0 E4 15 24 00 00 00 11 D0 E4 15 2A 00 00 00 12 D0 E4 15 2F 00 00 00 42 4F 4F 54 00 00 00 80 40 04 00 00 00 00 00 00 8C FD 08 00 00 00 00 00 00 00 00 00 01 00 00 00 E2 60 9F 12 7B 28 28 6F BD 53 9E F4 13 F9 CE 64 C3 79 0D 59 94 65 07 CC DA 24 AA 26 70 7B 3C F2 42 4F 4F 54 00 00 00 80 D0 01 09 00 00 00 00 00 24 E2 08 00 00 00 00 00 00 00 00 00 02 00 00 00 30 D1 45 19 9A 1A 86 88 B3 43 3A 67 2A 6A E7 29 6C AA 62 13 9F E1 7B 1B C5 4A D7 75 DE 16 06 5E 42 4F 4F 54 00 00 00 80 F8 E3 11 00 00 00 00 00 6C E6 08 00 00 00 00 00 00 00 00 00 04 00 00 00 63 45 8F 6B 8C 86 BB B6 24 AB 61 83 FA FF 77 6F 5D AD B0 06 43 48 78 D5 2A 15 DF 1A A4 DC 82 29 42 4F 4F 54 00 00 00 80 68 CA 1A 00 00 00 00 00 6C E6 08 00 00 00 00 00 00 00 00 00 08 00 00 00 CC 1D 34 F6 25 20 DF 77 41 C1 07 6D 87 6C 49 A4 92 5F 85 27 D0 DC 3C 22 AF 73 98 C8 33 9A 36 FC 50 41 52 54 01 00 00 80 D8 B0 23 00 00 00 00 00 90 14 00 00 00 00 00 00 34 00 00 00 01 00 00 00 74 F3 C1 FA 67 FA 1C E4 63 A3 EF 86 59 19 39 15 93 20 D0 38 D6 0D CA D7 D2 02 72 E4 CA 59 07 AB 50 41 52 54 01 00 00 80 68 C5 23 00 00 00 00 00 CC 14 00 00 00 00 00 00 34 00 00 00 0E 00 00 00 C7 69 CE C1 08 D8 86 6A 8F 9D 59 60 C5 9E E5 F1 A6 F3 61 00 AE DC 67 DE 5E A3 24 83 D9 62 85 17 50 41 52 54 01 00 00 80 38 DA 23 00 00 00 00 00 90 15 00 00 00 00 00 00 3B 00 00 00 01 00 00 00 4D 33 7D 66 3E DC 2A BC E1 BB E2 8F 69 BB 44 0F 4E 5E DD 32 73 49 8D 5D 7B 0C 52 89 F7 99 70 36 50 41 52 54 01 00 00 80 C8 EF 23 00 00 00 00 00 80 15 00 00 00 00 00 00 3B 00 00 00 0E 00 00 00 5F 9B 86 EA A6 E8 79 4C 67 D5 AF 66 A6 63 09 56 3A 53 F7 B8 5D CB E2 3E CB EA CF BC AB E3 A9 76 50 41 52 54 01 00 00 00 48 05 24 00 00 00 00 00 E0 40 55 00 00 00 00 00 48 00 00 00 00 00 00 00 62 3E 4E A6 27 DF 73 98 83 C1 34 D5 B3 E3 39 9D BA 07 6F F7 FE 12 2A AC BA EE FF 07 B2 DD 17 CA 50 41 52 54 01 00 00 00 28 46 79 00 00 00 00 00 10 5D 9E 09 00 00 00 00 4F 00 00 00 00 00 00 00 53 28 78 11 D0 6F BE 9A 92 E6 4F 97 C0 C8 18 3C 57 96 F5 D9 C6 3D 40 56 64 7F 9A 29 13 26 8D 28 56 00 00 00 00 00 00 00 C9 20 54 AE 05 3C EB 99 80 4F 69 6D 3B F9 BF CF 4E EC 38 97 00 31 BD 82 1B D6 56 84 4B 55 19 9B E1 47 67 7A 90 C8 0F 76 F2 B7 74 FD 3E 63 9E 3E D1 BD AF 1B AD 88 25 DA C5 FC 4B 90 24 FB DD 0D 0B 59 68 01 FC AE B0 46 8F 2F 33 4F 79 BE 44 62 8C 33 E0 80 07 DA 77 43 DA BB DA 1D 53 03 E9 0E F1 C4 84 49 D7 04 D2 9F EE 91 D3 C5 45 BE D3 F1 F5 D1 7B CC AF 61 ED 9C 2A EE FA 23 EE 94 4C 02 9B AA 82 57 B5 48 35 ED 81 26 34 B1 44 30 6E 48 EC A6 B1 48 0C D6 0F D7 70 95 93 A6 ED 4E F4 DB 38 26 A9 80 85 F5 76 2C 1A F6 26 33 AC 03 5A 34 65 45 71 3E 59 3A 9F D1 A1 63 8A 86 87 AE 64 56 85 44 97 8F 9E E5 1D 16 92 32 9F 0A B5 FA 84 1C D4 A0 31 E7 71 D6 B9 43 22 A0 9A 0A 74 78 F9 21 AB 15 24 2C 1C 10 05 BF 45 ED B9 4B 47 05 94 B2 1F 8E 71 17 FE 34 CB DB A0 54 83 A0 EA B6 86 3A
SCLIVE4	`4.1.0`	41 5A 30 78 01 00 00 00 00 00 00 00 38 00 00 00 38 00 00 00 98 00 00 00 B8 00 00 00 38 03 00 00 60 00 00 00 04 00 0A 00 01 00 00 00 38 03 00 00 01 00 00 00 07 00 00 00 00 34 2E 31 2E 30 00 45 6E 67 69 6E 65 4F 53 20 75 70 67 72 61 64 65 20 69 6D 61 67 65 00 4A 43 31 31 53 00 4A 50 31 31 53 00 4A 50 32 30 00 4A 50 32 31 00 73 70 6C 61 73 68 00 75 70 64 61 74 65 73 70 6C 61 73 68 00 6B 65 72 6E 65 6C 00 72 6F 6F 74 66 73 00 64 65 6E 6F 6E 2D 31 00 00 00 07 D0 E4 15 1E 00 00 00 0C C0 E4 15 24 00 00 00 11 D0 E4 15 2A 00 00 00 12 D0 E4 15 2F 00 00 00 42 4F 4F 54 00 00 00 80 40 04 00 00 00 00 00 00 8C FD 08 00 00 00 00 00 00 00 00 00 01 00 00 00 E2 60 9F 12 7B 28 28 6F BD 53 9E F4 13 F9 CE 64 C3 79 0D 59 94 65 07 CC DA 24 AA 26 70 7B 3C F2 42 4F 4F 54 00 00 00 80 D0 01 09 00 00 00 00 00 24 E2 08 00 00 00 00 00 00 00 00 00 02 00 00 00 30 D1 45 19 9A 1A 86 88 B3 43 3A 67 2A 6A E7 29 6C AA 62 13 9F E1 7B 1B C5 4A D7 75 DE 16 06 5E 42 4F 4F 54 00 00 00 80 F8 E3 11 00 00 00 00 00 6C E6 08 00 00 00 00 00 00 00 00 00 04 00 00 00 63 45 8F 6B 8C 86 BB B6 24 AB 61 83 FA FF 77 6F 5D AD B0 06 43 48 78 D5 2A 15 DF 1A A4 DC 82 29 42 4F 4F 54 00 00 00 80 68 CA 1A 00 00 00 00 00 6C E6 08 00 00 00 00 00 00 00 00 00 08 00 00 00 CC 1D 34 F6 25 20 DF 77 41 C1 07 6D 87 6C 49 A4 92 5F 85 27 D0 DC 3C 22 AF 73 98 C8 33 9A 36 FC 50 41 52 54 01 00 00 80 D8 B0 23 00 00 00 00 00 90 14 00 00 00 00 00 00 34 00 00 00 01 00 00 00 74 F3 C1 FA 67 FA 1C E4 63 A3 EF 86 59 19 39 15 93 20 D0 38 D6 0D CA D7 D2 02 72 E4 CA 59 07 AB 50 41 52 54 01 00 00 80 68 C5 23 00 00 00 00 00 CC 14 00 00 00 00 00 00 34 00 00 00 0E 00 00 00 C7 69 CE C1 08 D8 86 6A 8F 9D 59 60 C5 9E E5 F1 A6 F3 61 00 AE DC 67 DE 5E A3 24 83 D9 62 85 17 50 41 52 54 01 00 00 80 38 DA 23 00 00 00 00 00 90 15 00 00 00 00 00 00 3B 00 00 00 01 00 00 00 4D 33 7D 66 3E DC 2A BC E1 BB E2 8F 69 BB 44 0F 4E 5E DD 32 73 49 8D 5D 7B 0C 52 89 F7 99 70 36 50 41 52 54 01 00 00 80 C8 EF 23 00 00 00 00 00 80 15 00 00 00 00 00 00 3B 00 00 00 0E 00 00 00 5F 9B 86 EA A6 E8 79 4C 67 D5 AF 66 A6 63 09 56 3A 53 F7 B8 5D CB E2 3E CB EA CF BC AB E3 A9 76 50 41 52 54 01 00 00 00 48 05 24 00 00 00 00 00 84 40 55 00 00 00 00 00 48 00 00 00 00 00 00 00 FA 95 55 13 84 CC 99 FC F7 8E 5E 28 AB CE 3C 38 1C C4 58 22 A4 86 10 4F 00 CF B9 C4 E1 BF AE 9E 50 41 52 54 01 00 00 00 D0 45 79 00 00 00 00 00 DC 4A 9E 09 00 00 00 00 4F 00 00 00 00 00 00 00 0E 4D 81 C4 DB 95 D9 33 1D EF F9 CD D0 02 97 7A F9 53 6B 57 F0 96 43 76 56 92 53 BC CF EF 8B 8C 56 00 00 00 00 00 00 00 BD C1 66 25 1D A3 FD C7 2D 8D 92 76 42 25 A3 FD C0 F7 F6 BB 20 0E 2F 59 3C 6F 22 3B E8 BF E3 08 84 E1 B7 6C 01 74 E3 29 73 8D CD C3 8C 26 ED 01 EA 68 FD 1E 4D 7F 78 40 B0 10 96 5F 2C F8 D9 71 90 D4 43 FF DB BA 91 C5 04 7E 8F C9 0A E1 AF 27 D8 1A A7 1F 43 3D F6 34 78 B3 01 FB 05 82 42 7C 56 DE 13 C3 95 2B D9 5A A5 5C 75 BF B9 AB 18 47 BB 9B 10 BB A7 C6 05 31 B2 C5 69 16 55 8B 12 E3 4A 98 A8 C2 8E 8B 8B C8 A9 2F DF 6A 8B B9 3A B5 D5 33 F5 B5 73 60 85 E3 BA CD 8C 94 A2 28 FB 2C 85 52 32 68 EB 0D 34 9F 43 CD 2E 44 52 2F 35 A9 1E E6 80 B1 26 98 0F F1 72 16 33 68 86 18 84 C9 88 12 3A 6A A0 79 17 E8 7E FD 76 86 C0 C9 A1 DA E9 26 3E 26 BA 71 8A 46 C5 CF 96 EF CD 6C 41 85 6C 61 81 22 E9 65 F3 FE 6A F0 2C 94 E7 C3 A2 C2 8D EE 71 C0 A1 9E DC 4F 15 7E 51 C5 F4 28 6D CD
MIXSTREAMPROGO	`4.1.0`	41 5A 30 78 01 00 00 00 00 00 00 00 38 00 00 00 38 00 00 00 90 00 00 00 A0 00 00 00 20 02 00 00 58 00 00 00 02 00 06 00 01 00 00 00 20 02 00 00 01 00 00 00 07 00 00 00 00 34 2E 31 2E 30 00 45 6E 67 69 6E 65 4F 53 20 75 70 67 72 61 64 65 20 69 6D 61 67 65 00 4E 48 30 38 53 00 4E 48 31 30 00 73 70 6C 61 73 68 00 75 70 64 61 74 65 73 70 6C 61 73 68 00 6B 65 72 6E 65 6C 00 72 6F 6F 74 66 73 00 6E 75 6D 61 72 6B 2D 31 00 00 00 00 00 3F 30 E4 15 1E 00 00 00 59 20 E4 15 24 00 00 00 42 4F 4F 54 00 00 00 80 28 03 00 00 00 00 00 00 E8 E7 08 00 00 00 00 00 00 00 00 00 01 00 00 00 55 DB B9 C0 AD 79 38 F0 91 8F 55 20 78 FC BB 46 AA 40 EA F1 48 95 A2 6E 8F 88 6E 98 A4 D9 67 AD 42 4F 4F 54 00 00 00 80 10 EB 08 00 00 00 00 00 A8 E8 08 00 00 00 00 00 00 00 00 00 02 00 00 00 10 D3 3D AE 85 89 48 89 26 7C 2D DA EA A2 6D F3 EE C6 22 90 9B F1 BE 44 3B 11 88 9F F2 4A F6 56 50 41 52 54 01 00 00 00 B8 D3 11 00 00 00 00 00 90 14 00 00 00 00 00 00 29 00 00 00 00 00 00 00 74 F3 C1 FA 67 FA 1C E4 63 A3 EF 86 59 19 39 15 93 20 D0 38 D6 0D CA D7 D2 02 72 E4 CA 59 07 AB 50 41 52 54 01 00 00 00 48 E8 11 00 00 00 00 00 90 15 00 00 00 00 00 00 30 00 00 00 00 00 00 00 4D 33 7D 66 3E DC 2A BC E1 BB E2 8F 69 BB 44 0F 4E 5E DD 32 73 49 8D 5D 7B 0C 52 89 F7 99 70 36 50 41 52 54 01 00 00 00 D8 FD 11 00 00 00 00 00 EC 2C 55 00 00 00 00 00 3D 00 00 00 00 00 00 00 EC 7E A9 C0 92 FF 0B A3 4E 1B 19 49 ED 05 35 A6 BC EB 73 06 8E EA 61 25 FD 32 54 4C 5D AE 5F AD 50 41 52 54 01 00 00 00 C8 2A 67 00 00 00 00 00 E8 DE 9D 09 00 00 00 00 44 00 00 00 00 00 00 00 DA 4A 38 06 BD B4 D6 EC 60 28 5B 26 55 0F AA 83 B6 8B 72 85 02 47 45 62 F4 CD F7 09 B0 9C 45 2A 4B 00 00 00 00 00 00 00 37 DC 03 25 2A C8 8C 3D 7D 46 73 EA 4D 5D EF E5 E8 5A 1F D8 6F 33 05 84 FC 0E 31 68 EB 18 1D F3 F9 B2 51 83 10 15 BB EF 58 4D 4B 03 13 13 7A BE B7 F3 7E FA C2 B1 60 6B 52 4C A5 BE 4B 41 23 3F 79 E3 3E 44 11 BA 3C C7 03 03 0A 59 06 21 96 6F 20 06 F5 8B CC C6 C0 B5 B8 9A 0B 8F 1B 8E E2 33 F6 AE 8D 92 36 C3 88 9E 2A 03 A2 A5 ED 86 53 BC 52 12 75 43 D0 BD 8B 30 9A 6C AA B1 72 B5 64 7D 89 78 BF 63 12 69 86 E7 C7 12 95 24 2E 7D B3 AE 72 1E A0 DC 76 D6 75 6B 63 A7 43 5C 99 29 D8 AF B0 37 52 9C AA D9 65 DD 72 08 7F 8A E3 5C FB 42 88 14 24 16 AD 76 92 ED EA 66 C9 E9 0A 31 91 6D D1 A4 6F 40 50 DF D2 EE EF C2 B7 EC 55 1A A1 C8 7F 3E 62 8F 05 10 3D 10 6A 29 82 3E 56 B3 AF 78 28 82 A0 DB E3 67 B9 63 6B 28 E4 A1 15 D7 BE 94 F1 BF 42 51 78 08 D4 49 62 18 0F D6 22 F6 6C C8
MIXSTREAMPROPLUS	`4.1.0`	41 5A 30 78 01 00 00 00 00 00 00 00 38 00 00 00 38 00 00 00 90 00 00 00 A0 00 00 00 20 02 00 00 58 00 00 00 02 00 06 00 01 00 00 00 20 02 00 00 01 00 00 00 07 00 00 00 00 34 2E 31 2E 30 00 45 6E 67 69 6E 65 4F 53 20 75 70 67 72 61 64 65 20 69 6D 61 67 65 00 4E 48 30 38 53 00 4E 48 31 30 00 73 70 6C 61 73 68 00 75 70 64 61 74 65 73 70 6C 61 73 68 00 6B 65 72 6E 65 6C 00 72 6F 6F 74 66 73 00 6E 75 6D 61 72 6B 2D 31 00 00 00 00 00 3F 30 E4 15 1E 00 00 00 59 20 E4 15 24 00 00 00 42 4F 4F 54 00 00 00 80 28 03 00 00 00 00 00 00 E8 E7 08 00 00 00 00 00 00 00 00 00 01 00 00 00 55 DB B9 C0 AD 79 38 F0 91 8F 55 20 78 FC BB 46 AA 40 EA F1 48 95 A2 6E 8F 88 6E 98 A4 D9 67 AD 42 4F 4F 54 00 00 00 80 10 EB 08 00 00 00 00 00 A8 E8 08 00 00 00 00 00 00 00 00 00 02 00 00 00 10 D3 3D AE 85 89 48 89 26 7C 2D DA EA A2 6D F3 EE C6 22 90 9B F1 BE 44 3B 11 88 9F F2 4A F6 56 50 41 52 54 01 00 00 00 B8 D3 11 00 00 00 00 00 90 14 00 00 00 00 00 00 29 00 00 00 00 00 00 00 74 F3 C1 FA 67 FA 1C E4 63 A3 EF 86 59 19 39 15 93 20 D0 38 D6 0D CA D7 D2 02 72 E4 CA 59 07 AB 50 41 52 54 01 00 00 00 48 E8 11 00 00 00 00 00 90 15 00 00 00 00 00 00 30 00 00 00 00 00 00 00 4D 33 7D 66 3E DC 2A BC E1 BB E2 8F 69 BB 44 0F 4E 5E DD 32 73 49 8D 5D 7B 0C 52 89 F7 99 70 36 50 41 52 54 01 00 00 00 D8 FD 11 00 00 00 00 00 C0 2C 55 00 00 00 00 00 3D 00 00 00 00 00 00 00 6B 0F AE D3 13 1C FD 39 6B 66 7C 01 FC 30 8D A1 52 1F 76 C8 32 A6 1D A2 31 5D 7E 20 14 8D AA 13 50 41 52 54 01 00 00 00 98 2A 67 00 00 00 00 00 58 F2 9D 09 00 00 00 00 44 00 00 00 00 00 00 00 52 38 31 87 1C C3 94 30 5E C6 29 6C C5 6B 55 C0 BC 52 98 D4 E5 77 D3 6A 77 81 FA D0 1E 8A F4 D6 4B 00 00 00 00 00 00 00 9A CF 53 D8 98 41 54 6B 1C 0D 5A F5 C8 C9 89 E5 82 98 41 C1 79 16 12 5F 18 E1 CC 94 80 30 0F E4 CB EC 32 A6 B0 F8 E1 03 4C 26 EB D2 7C B7 E7 66 C5 B6 26 2C E4 F3 BE 44 9E E8 C1 2E A7 C4 29 C0 92 96 D9 5B 49 B4 D9 6E 79 37 90 21 22 00 E0 D9 C6 FD E1 61 80 79 73 07 46 2A DA 4C 41 60 8B 86 1B 54 41 01 DC F8 18 18 6C 10 1A 2E 0E D6 D5 A2 CB B9 C8 5D 75 15 94 A7 EF DB 4A 0A BF 4A 0F D9 57 06 6D 67 B0 9E 8F 22 2C F2 04 30 18 24 9A 06 EA B2 49 48 D9 87 4A 13 FD 22 12 91 D6 FB 2C EF BF A9 43 AD C2 5C 40 62 C3 58 A6 AD A7 A3 D4 2B 96 EB 67 D0 55 E5 DB 2C 4B B8 16 82 DB 5F 76 59 16 75 02 28 8B 0D 7E 40 CB 45 A4 0F BB D8 71 49 27 51 1D 8B 95 25 12 79 07 1E E0 6C C0 47 64 8C 76 27 71 8B 3B 73 EB AC C6 9A 90 89 09 86 19 72 F6 EC 3A B0 9B BA 74 B2 F4 E0 64 D2 9A 22 82 08
HeadRush Core	`3.2`	41 5A 30 78 01 00 00 00 00 00 00 00 38 00 00 00 38 00 00 00 98 00 00 00 A0 00 00 00 E0 01 00 00 60 00 00 00 01 00 05 00 02 00 00 00 E0 01 00 00 01 00 00 00 0A 00 00 00 00 53 4E 41 50 53 48 4F 54 00 48 56 30 31 20 75 70 67 72 61 64 65 20 69 6D 61 67 65 00 48 56 30 31 00 73 70 6C 61 73 68 00 75 70 64 61 74 65 73 70 6C 61 73 68 00 6B 65 72 6E 65 6C 00 72 6F 6F 74 66 73 00 74 65 73 74 2D 68 65 61 64 72 75 73 68 00 68 65 61 64 72 75 73 68 2D 31 00 00 00 00 19 30 63 07 1D 00 00 00 42 4F 4F 54 00 00 00 00 F0 03 00 00 00 00 00 00 94 D5 08 00 00 00 00 00 00 00 00 00 00 00 00 00 4D 37 5D 1C 89 FA A9 CD 97 79 15 B9 69 D8 B0 6B 18 87 59 ED 48 54 4A 1B BC 9D 7F 4F 82 57 FB D2 50 41 52 54 01 00 00 00 88 D9 08 00 00 00 00 00 18 21 04 00 00 00 00 00 22 00 00 00 00 00 00 00 E6 A6 F9 71 86 DB 8D 02 C2 47 39 CF 78 6D E6 5D 99 E4 11 B9 19 9A 16 84 A7 A8 80 A0 69 08 7A DD 50 41 52 54 01 00 00 00 A0 FA 0C 00 00 00 00 00 8C 28 04 00 00 00 00 00 29 00 00 00 00 00 00 00 B4 71 81 86 0A 3F 03 71 DF 5C AF CB 2C D1 28 54 4C 10 F4 F5 5B DE 32 26 B4 04 74 37 0E 14 EA 00 50 41 52 54 01 00 00 00 30 23 11 00 00 00 00 00 A4 6A 55 00 00 00 00 00 36 00 00 00 00 00 00 00 58 5E 62 E4 1E AB A4 43 41 CC F2 C1 53 FC E7 EA 9A 1B E6 C0 94 2D D8 A3 A8 03 DE A2 82 7E 43 5E 50 41 52 54 01 00 00 00 D8 8D 66 00 00 00 00 00 DC 49 3F 09 00 00 00 00 3D 00 00 00 00 00 00 00 12 5B E8 78 A6 8A 37 0C 89 0D C7 1D E5 47 E9 DE B7 78 6D 2F A6 DA 6C 1E 51 87 28 16 21 7F 5E E2 44 00 00 00 00 00 00 00 23 42 51 C7 4D 77 64 FA 9C D1 17 91 2A C6 B2 DE DB 32 2B D5 B0 9B 40 AD 6E 9F F8 B0 C5 A7 E9 A7 B9 9A AA B0 6E 0C 14 BB 78 02 FB F6 FD 87 9E 5E 4C 95 D0 D2 A0 30 D7 D6 05 CB 6D 04 E5 C4 CE C0 48 BC B7 DB 92 3B F6 92 66 23 D8 08 C0 FB AF 52 D0 93 EE 92 34 B1 A4 32 17 34 D6 9D 58 25 C8 17 C0 ED 20 C3 53 58 D1 D3 1D 06 B9 F0 F1 D7 9D C9 5C AB 74 C4 D1 8B 86 A1 00 EB 62 C6 19 13 C9 68 F0 D0 C1 3C 03 6A 60 37 F2 71 55 22 1A 15 88 CA 7A C2 9B 91 F6 E2 05 F4 41 5F CE D9 56 25 36 D7 AD 66 BE 8C DC 11 93 D6 16 24 2E 92 16 5D BB 0E F3 BC 10 4E 36 DE 27 29 53 B3 9D BB CB F3 92 EC 6E A7 D9 48 1A 01 71 FA B6 BB 14 99 89 B8 2C 81 98 C7 EE 44 85 26 48 46 46 1E CE C9 3F 80 DA A7 43 57 3A 46 DD 04 87 6B 42 72 13 A9 58 74 06 29 57 B0 CD E6 FA D1 D2 39 C3 6F DD 39 86 6D E6 F6 52 00 00 00 00 00 00 00 15 D6 83 91 23 9C 9E 21 A5 2D D8 9B C5 92 07 CF 2D 6C DC 65 50 9E 34 70 05 5F 9E E9 49 44 71 FF 02 E7 3F 88 ED B8 63 88 EF CF 17 79 04 39 8D 89 99 7D 6E 31 F4 02 2B FC 7D 3E 49 CA F9 58 E6 33 64 D1 B8 47 52 03 58 67 FF 24 A7 83 F0 D2 91 67 C2 D8 10 48 B8 91 FA AA 49 55 6F 54 9B 9D B2 33 A8 AF 27 A9 D0 B2 04 9E D9 E3 92 FD 28 F3 C3 86 7B F5 0F 29 75 56 75 89 0E 5C 6E 82 2A BB 46 52 9F 3A 81 99 A0 24 90 25 8F 86 36 0F D9 B2 F7 AD E4 73 B2 8A 6D E4 6B 1D 84 D6 BA CE 29 CE E9 19 79 CD C8 F2 03 01 06 56 F8 B1 63 23 2E 8F 98 E4 8C 58 C3 5A C9 41 67 DC 2D FB A8 21 6D 35 AB 75 40 F6 7E 17 E6 10 D3 76 22 C3 C7 AB 00 A5 21 A1 38 A6 AF 4F C0 1D 77 63 B7 98 C3 26 C3 11 9B 35 6B 5E D6 BE F0 35 9E 03 0A BE 3C 61 55 B9 B3 2F C2 B4 36 54 E1 7D 3E FF 94 D7 1B CB 2A EC 4A 63
HeadRush Prime	`3.2`	41 5A 30 78 01 00 00 00 00 00 00 00 38 00 00 00 38 00 00 00 98 00 00 00 A0 00 00 00 E0 01 00 00 60 00 00 00 01 00 05 00 02 00 00 00 E0 01 00 00 01 00 00 00 0A 00 00 00 00 53 4E 41 50 53 48 4F 54 00 48 47 30 36 20 75 70 67 72 61 64 65 20 69 6D 61 67 65 00 48 47 30 36 00 73 70 6C 61 73 68 00 75 70 64 61 74 65 73 70 6C 61 73 68 00 6B 65 72 6E 65 6C 00 72 6F 6F 74 66 73 00 74 65 73 74 2D 68 65 61 64 72 75 73 68 00 68 65 61 64 72 75 73 68 2D 31 00 00 00 00 1B 30 63 07 1D 00 00 00 42 4F 4F 54 00 00 00 00 F0 03 00 00 00 00 00 00 BC D5 08 00 00 00 00 00 00 00 00 00 00 00 00 00 37 C2 75 FC 74 8B 58 E0 A7 83 C3 7F 70 D8 E5 E4 CF 48 8F EA 8A 2E F3 80 03 DE EA D7 56 5B C7 0B 50 41 52 54 01 00 00 00 B0 D9 08 00 00 00 00 00 5C 21 04 00 00 00 00 00 22 00 00 00 00 00 00 00 E5 C0 2B BF 72 A7 47 79 5E BD ED ED FE AA C7 63 5B CC E9 BA 7D 59 B1 58 62 77 0C 83 DD 85 9B DB 50 41 52 54 01 00 00 00 10 FB 0C 00 00 00 00 00 60 28 04 00 00 00 00 00 29 00 00 00 00 00 00 00 CC 87 F9 19 AC 6F 04 17 DC 7F AA 8A 41 CA D0 29 EE 4E 5E 7C F4 0E EC D8 54 06 A4 C7 84 B1 4F C8 50 41 52 54 01 00 00 00 70 23 11 00 00 00 00 00 20 FE 5A 00 00 00 00 00 36 00 00 00 00 00 00 00 57 23 F5 34 71 DA 67 B1 FD DE 39 2F EE 1D 42 62 0B CC 44 9E A1 16 81 E2 A6 39 CF F2 4B 22 22 68 50 41 52 54 01 00 00 00 90 21 6C 00 00 00 00 00 F8 66 51 09 00 00 00 00 3D 00 00 00 00 00 00 00 CC 1B 1E AC 57 E1 44 FC 49 59 41 DB 00 B2 76 8D C4 69 2E 92 F4 2B C8 60 4B 6F 6B CC A8 E9 B4 CA 44 00 00 00 00 00 00 00 0B 49 0A 9D AB 98 E7 F1 30 74 23 79 4D EB F5 D3 DB D9 80 67 1B 4D 78 6F 1B EA 9A 8E D0 54 DE 7F 01 4E 38 8A 3C 27 67 C4 EB 49 EE EE 20 5A 7C 8D 1C 47 AB C3 53 94 48 50 2E 68 02 B0 09 7A C3 C0 D3 7F C3 DD 6B 42 4F EA 4E 3D 12 32 9B AA 6B CB 3F 47 F0 AB 48 2D 0E F0 E8 20 80 8A 94 41 6C F8 32 E9 F3 0A 82 15 B0 C1 70 A8 FE 65 95 C8 55 47 23 8A 79 B5 E9 D2 5C 46 53 BC 09 CC 88 AA 7C 2A 3D F2 D3 49 11 3F CC BD 36 70 14 B8 85 E5 AA 9E 49 A5 4A 00 16 FF 4C 25 CF 19 A6 F7 1A E9 7C A6 2F A5 0E 59 9C 9F CF 24 4F 01 4A 13 B3 06 A2 2E 22 35 B8 E2 92 46 5F 5B 51 AD 43 09 11 C0 37 BA A4 36 35 03 A1 65 D0 99 EB F6 76 C2 0B CD 43 19 8C C5 FD 8B 74 9C 62 96 61 6E 59 FE B5 22 2B 1E B9 0A FB B5 FA 43 CC 92 49 99 90 B4 8B F8 AB FF 00 37 C9 15 BF 6D FC 2B 5F 65 8C C6 24 38 7E FF 52 00 00 00 00 00 00 00 20 3D 58 F4 8B 42 83 81 58 B0 71 A2 0A 43 2B 64 2F DB 9D A6 65 93 8A 43 36 3D 25 F7 99 6C 11 71 7B 43 08 6C 70 B8 0C DD 3F 50 2E 5B 16 10 80 61 F3 4E D1 14 59 3D 97 36 37 0C ED 11 A7 D3 EB CE 17 A0 88 1D BD 53 37 3C 39 4D F2 8E E3 74 72 B9 F3 A8 2D 74 7C A3 25 FD DF 28 9E 09 0D 35 65 BB E3 F4 83 FF 1C 2A 0C FF 11 8B C5 CA 34 3E 1D C6 4C 3A 94 CF CF DB A6 4A 8C 56 8A 8D 26 7A DC BE 8A F1 50 BC AB ED C9 18 46 E8 E1 29 D6 64 E0 18 FD B1 C9 07 6B 52 E4 62 BC 52 B7 B6 C8 CE 6B 58 F7 41 AE D2 15 F4 A4 92 1B EF 10 58 4F 87 8E 46 E7 41 EC 0A 74 9C 44 10 81 55 DE DA BD 74 B9 0C A5 A5 3A 7C 5F 70 9D B9 FA 25 BE 21 CF 49 18 B3 48 F8 2C 35 A4 D8 83 A2 21 9D 2D 73 7B 48 0A BD E5 A7 25 97 43 B4 5D 80 65 20 30 20 7F 57 84 91 27 82 E5 9D 2F 04 44 EC B7 A0 61 7B B9 88 C5 7E

Header Value Descriptions

All of these start with the constant 41 5A 30 78 01, which decodes to AZ0x (the board model numbers that I've seen are AZ01 and AZ05).

Offset 0x39 up to the byte 0x00 contains the firmware version.

On Denon devices, I've seen 4.1.0, these likely have the software version for all updates.
On HeadRush devices, I've seen SNAPSHOT. This is likely their SVN's branch the build is produced from (not the software version).

Following the version (up to the next 0x00), we get the name of the update image:

HG06 upgrade image
HV01 upgrade image
EngineOS upgrade image

Following this, we get the model IDs of the devices this firmware update supports. This can be a number of strings (the number of these strings can be found at offset 0x24).

Partitions

Before retrieving the partitions, we need to look at a couple values at different offsets to determine the partition metadata layout in the firmware.

Offset	Description
`0x18`	The beginning address of the partitions
`0x26`	The number of partitions in the image

For example, PRIME4PLUS-3.1.0-Update.img contains:

Offset	Value
`0x18`	`0xa8`
`0x26`	`0x09`

This tells us that we need to go to 0xa8 to get the first partition's metadata. Partition's metadata is 0x40 in length, so we can read this into a buffer.

Since we know we have 9 partitions, we read this 9 times before we reach the end of all partitions' metadata.

Example partition metadata:

Partition	Metadata
1	`42 4F 4F 54 00 00 00 80 F0 03 00 00 00 00 00 00 1C DC 08 00 00 00 00 00 00 00 00 00 01 00 00 00 3B 09 D8 3C C2 E1 4D 0F 1E 88 32 B8 EE E1 B9 24 23 49 D1 25 C7 6A 75 32 DB 1C E3 8D B3 1A 11 28`
2	`42 4F 4F 54 00 00 00 80 10 E0 08 00 00 00 00 00 34 C5 08 00 00 00 00 00 00 00 00 00 02 00 00 00 3F EE 62 5F F0 71 9F FA C0 3D 78 37 75 54 D9 5D 53 65 2D 34 C7 7C 90 92 2D F8 D6 37 5B 60 6C CC`
3	`42 4F 4F 54 00 00 00 80 48 A5 11 00 00 00 00 00 34 C5 08 00 00 00 00 00 00 00 00 00 04 00 00 00 A9 7F A5 37 05 8B 57 BA 06 92 8B 89 ED F9 BD 24 3B 13 05 BA 89 D0 A1 DC 70 28 F1 BD 06 AE DF 5D`
4	`50 41 52 54 01 00 00 80 80 6A 1A 00 00 00 00 00 B0 15 00 00 00 00 00 00 2E 00 00 00 01 00 00 00 51 7A F5 7F DF BE 27 76 8A B8 65 EE E2 A2 83 96 CB 0E 05 FA ED 11 CD 92 15 75 71 35 EF 7F 30 3A`
5	`50 41 52 54 01 00 00 80 30 80 1A 00 00 00 00 00 30 16 00 00 00 00 00 00 2E 00 00 00 06 00 00 00 04 E3 92 9C 06 72 E4 2A 13 41 4A D0 5C 37 53 1F 4F 7C 59 75 6D DC CD 20 91 EB 1E 4E 87 FE E4 02`
6	`50 41 52 54 01 00 00 80 60 96 1A 00 00 00 00 00 90 15 00 00 00 00 00 00 35 00 00 00 01 00 00 00 4D 33 7D 66 3E DC 2A BC E1 BB E2 8F 69 BB 44 0F 4E 5E DD 32 73 49 8D 5D 7B 0C 52 89 F7 99 70 36`
7	`50 41 52 54 01 00 00 80 F0 AB 1A 00 00 00 00 00 80 15 00 00 00 00 00 00 35 00 00 00 06 00 00 00 5F 9B 86 EA A6 E8 79 4C 67 D5 AF 66 A6 63 09 56 3A 53 F7 B8 5D CB E2 3E CB EA CF BC AB E3 A9 76`
8	`50 41 52 54 01 00 00 00 70 C1 1A 00 00 00 00 00 38 EA 50 00 00 00 00 00 42 00 00 00 00 00 00 00 E6 0F D4 4F E6 84 4F 35 68 0D 93 2E 2A CB 32 62 F1 71 2F F4 24 94 78 62 D0 72 74 14 6E 4D AB 80`
9	`50 41 52 54 01 00 00 00 A8 AB 6B 00 00 00 00 00 F0 4C AA 0A 00 00 00 00 49 00 00 00 00 00 00 00 7D 28 81 86 29 42 A1 8D AD 50 21 39 C3 3C D8 4F 20 A0 D6 6B 1B 33 64 30 A0 33 9D 9F 37 CB 87 DA`

The partition metadata that I have figured out the meaning of is as follows (offset is the offset from the beginning of the partition's metadata):

Offset	Description
`0x0`-`0x3`	`BOOT` or `PART` (probably whether this is a boot partition, or a normal one)
`0x8`-`0xf`	The address for the beginning of the partition table (in little endian)
`0x10`-`0x17`	The size of the partition data
`0x18`-`0x1b`	❔ Completely unknown
`0x1c`-`0x1f`	❔ Looks like it could be the partition number (partition # per U-Boot)
`0x20`-`0x3f`	❔ Likely the SHA256 of the partition data

Data

After removing the header from the file, dumpimage -l <image> on SCLIVE2-4.1.0-Update.img outputs:

FIT description: bootupd
Created:         Thu Sep 19 22:38:27 2024
 Image 0 (idbloader)
  Description:  idbloader
  Created:      Thu Sep 19 22:38:27 2024
  Type:         Rockchip SD Boot Image
  Compression:  uncompressed
  Data Size:    116736 Bytes = 114.00 KiB = 0.11 MiB
  Hash algo:    sha256
  Hash value:   583719bec0261b7d7e295aad48b6f90d9b105819a7573b449535d98ed572800e
 Image 1 (u-boot)
  Description:  u-boot
  Created:      Thu Sep 19 22:38:27 2024
  Type:         Kernel Image
  Compression:  uncompressed
  Data Size:    470992 Bytes = 459.95 KiB = 0.45 MiB
  Architecture: ARM
  OS:           U-Boot
  Load Address: unavailable
  Entry Point:  unavailable
  Hash algo:    sha256
  Hash value:   21d7a7ca4d7732eea812aa871451c627d3070251c79a89997aecbe14ba9599a9
 Default Configuration: 'config'
 Configuration 0 (config)
  Description:  image
  Kernel:       unavailable
  Sign algo:    sha256,rsa2048:denon-1
  Sign value:   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
  Timestamp:    Thu Sep 19 22:38:27 2024

The rootfs can be extracted with binwalk -eM <image>. The rootfs will be in a subfolder in extractions somewhere.

Example locations:

Device	Firmware Version	rootfs path
SC Live 2	`4.1.0`	`extractions/SCLIVE2-4.1.0-Update.img.extracted/794628/decompressed.bin.extracted/0/rootfs/`
SC Live 4	`4.1.0`	`extractions/PRIME4PLUS-4.1.0-Update.img.extracted/7945B0/decompressed.bin.extracted/0/rootfs/`
HeadRush Core	`3.2`	`extractions/core-3.2.img.extracted/668DD8/decompressed.bin.extracted/0/rootfs/`
HeadRush Prime	`3.2`	`extractions/prime-3.2.img.extracted/6C2190/decompressed.bin.extracted/0/rootfs/boot/`
Prime 4 Plus	`4.1.0`	`extractions/PRIME4PLUS-4.1.0-Update.img.extracted/7945B0/decompressed.bin.extracted/0/rootfs/`
Prime Go +	`4.1.0`	`extractions/PRIMEGOPLUS-4.1.0-Update.img.extracted/7945D0/decompressed.bin.extracted/0/rootfs/`
Mixstream Pro Go	`4.1.0`	`extractions/MIXSTREAMPROGO-4.1.0-Update.img.extracted/672AC8/decompressed.bin.extracted/0/rootfs/`
Mixstream Pro +	`4.1.0`	`extractions/MIXSTREAMPROPLUS-4.1.0-Update.img.extracted/672A98/decompressed.bin.extracted/0/rootfs/`

Last modified: 18 November 2024