Editing Syscon Firmware

[[Category:Software]]
Syscon Firmware is the firmware stored on the System Controller EEPROM (see [[Syscon Hardware]]). Updates are stored in update packages within the Update_files.tar of a [[Playstation Update Package (PUP)]].  Syscon Packages appear to always be 5KB (5376 bytes) in size.


= Syscon update packages =
d/l: [http://www.multiupload.com/JHBCOCGNUR syscon_fw1.00-4.00.rar (51.74 KB)]

== Package structure ==
Sys_con_firmware Packages can be unpacked with unpkg

=== Overview ===
{|class="wikitable"
|-
! Address !! Length !! Value !! Description
|-
| 0x00 || 0x4 || ASCI:"SCE" || SCE magic header
|-
| 0x04 || 0x4 || 0x2 || Flags
|-
| 0x08 || 0x4 || 0x3 || Type (0x3 = PKG)
|-
| 0x0C || 0x4 || 0x0 || Blank/Unknown
|-
| 0x10 || 0x4 || 0x0 || Blank/Unknown
|-
| 0x10 || 0x8 || 0x280 || Start Data Offset ('hdr_len')
|-
| 0x18 || 0x8 || 0x1080 || Data Size ('dec_size')
|-
| 0x20 || 0x260 || - || Header
|-
| 0x280 || 0x40 || - || 'info0' section (see below)
|-
| 0x2C0 || 0x40 || - || 'info1' section (see below)
|-
| 0x300 || 0x1000 || - || 'content'
|-
|}
==='info0'===
{|class="wikitable"
|-
! Address !! Length !! Value !! Description
|-
| 0x00 || 0x4 || 0x3 || 
|-
| 0x04 || 0x4 || 0x8 || 
|-
| 0x08 || 0x8 || - || SC firmware revision (the high word of it is the SC type)
|-
| 0x0C || 0x4 || 0x0B8E<br />0x0C16<br />0x0D52<br />0x0DBF<br />0x0E69<br />0x0F29<br />0x0F38<br />0x065D<br />0x0832<br />0x08A0<br />0x08C2<br />0x0918 || 'SoftID'
|-
| 0x10 || 0x8 || 0x0001000000000004<br />0x0001000000000005<br />0x0001000000000006<br />0x0001000100030002<br />0x0001000100030003<br />0x0001000200030002<br />0x0001000300030002<br />0x0001000400040002<br />0x0001000500000002<br />0x0001000500010001<br />0x00010002083E0832<br /> || 'PatchID'
|-
| 0x18 || 0x8 || 0x1000 || 'Content' Data Size
|-
| 0x20 || 0x8 || 0x1000 || 'Content' Compressed Data Size
|-
| 0x28 || 0x8 || 0x0 || 
|-
| 0x30 || 0x10 || 0x0 || 
|-
|}

Note: PS3 firmwares cannot deal with compressed syscon firmwares, so they will abort the update process in that case.

==='info1'===
{|class="wikitable"
|-
! Address !! Length !! Value !! Description
|-
| 0x00 || 0x4 || 0x0 || 
|-
| 0x04 || 0x4 || 0x3 || 
|-
| 0x08 || 0x8 || 0x40 || Offset/size?
|-
| 0x10 || 0x4 || 0x0 || 
|-
| 0x14 || 0x4 || 0x0 || 
|-
| 0x18 || 0x8 || 0x1000 || 'Content' Data Size?
|-
| 0x20 || 0x8 || 0x1 || 
|-
| 0x28 || 0x8 || 0x1 || 
|-
| 0x30 || 0x10 || 0x0 || 
|-
|}
==='content' overview===
{|class="wikitable"
|-
! Address !! Length !! Value !! Description
|-
|-
| 0x0 || 0x1000 || - || 'content'
|-
|}

== Known Retail syscon update packages ==
These are in in full Retail/CEX and Debug/DEX firmwares:
{| class="wikitable sortable"
|-
! [[Motherboard Revisions|Board]] !! [[Syscon Hardware]] !! sys_con_firmware package !! 1.00-1.30 !! 1.30-1.80 !! 1.81-2.80 !! 3.00-3.30 !! 3.40 !! 3.41-4.46 !! SoftID !! Notes
|-
| rowspan=3 | [[COK-00x#COK-001|COK-001]] || rowspan=6 | [[CXR713120-201GB]] || SYS_CON_FIRMWARE_01000004.pkg || {{No}} || {{Yes}} || {{No}} || {{No}} || {{No}} || {{No}} || 0B8E || Superceeded by SYS_CON_FIRMWARE_01000005.pkg 
|-
| SYS_CON_FIRMWARE_01000005.pkg || {{No}} || {{No}} || {{Yes}} || {{Yes}} || {{No}} || {{No}} || 0B8E || Superceeded by SYS_CON_FIRMWARE_01000006.pkg
|-
| SYS_CON_FIRMWARE_01000006.pkg || {{No}} || {{No}} || {{No}} || {{No}} || {{Yes}} || {{Yes}} || 0B8E || 
|-
| rowspan=2 | [[COK-00x#COK-002|COK-002]] || SYS_CON_FIRMWARE_01010302.pkg || {{No}} || {{No}} || {{Yes}} || {{Yes}} || {{No}} || {{No}} || 0C16 || Superceeded by SYS_CON_FIRMWARE_01010303.pkg
|-
| SYS_CON_FIRMWARE_01010303.pkg || {{No}} || {{No}} || {{No}} || {{No}} || {{Yes}} || {{Yes}} || 0C16 || 
|-
| [[SEM-00x|SEM-001]] || SYS_CON_FIRMWARE_01020302.pkg || {{No}} || {{No}} || {{No}} || {{No}} || {{Yes}} || {{Yes}} || 0D52 || 
|-
| [[DIA-00x#DIA-001|DIA-001]] || rowspan=2 | [[CXR714120-301GB]] || SYS_CON_FIRMWARE_01030302.pkg || {{No}} || {{No}} || {{No}} || {{No}} || {{Yes}} || {{Yes}} || 0DBF || 
|-
| [[DIA-00x#DIA-002|DIA-002]] || SYS_CON_FIRMWARE_01040402.pkg || {{No}} || {{No}} || {{No}} || {{No}} || {{Yes}} || {{Yes}} || 0E69 || 
|-
| [[VER-00x|VER-001]] || [[SW-30x]] || || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || 065D || 
|-
| [[DYN-00x|DYN-001]] || rowspan=4 | [[SW2-30x]] || SYS_CON_FIRMWARE_S1_00010002083E0832.pkg || {{No}} || {{No}} || {{No}} || {{Yes}} || {{Yes}} || {{Yes}} || 0832 || ps3 2k series
|-
| [[SUR-00x|SUR-001]] || || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || 08A0 ||
|-
| [[JTP-00x|JTP-001]], [[JSD-00x|JSD-001]] || || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || 08C2 || 
|-
| [[KTE-00x|KTE-001]] || || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || 0918 || ps3 3k series
|-
| [[MSX-00x|MSX-001]], [[MPX-00x|MPX-001]] || [[SW3-30x]] || || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || 098F || ps3 4k series
|-
| ??? || ??? || SYS_CON_FIRMWARE_01050002.pkg || {{No}} || {{No}} || {{No}} || {{No}} || {{Yes}} || {{Yes}} || 0F29 || Compatible with CXR714120-301GB ? (newer than 0E69 SoftID)
|-
| ??? || ??? || SYS_CON_FIRMWARE_01050101.pkg || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || {{Yes}} || 0F38 || Compatible with CXR714120-301GB ? (newer than 0E69 SoftID)
|-
|}

This means from syscon perspective notible firmware changes where made at 1.30, 1.81, 3.00, 3.40 and 3.41 that affected retail and debug PS3 models
*Firmware 1.30 (December 6, 2006) added Backup/Restore
*Firmware 1.81 (June 15, 2007) ?
*Firmware 3.00 (September 1, 2009) resulted in Class action suit for BluRay reading problems
*Firmware 3.40 (June 29, 2010) ?
*Firmware 3.41 (July 26, 2010) ?

== NonRetail syscon ==
Remember, Debug/DEX consoles are normal retail consoles with different TargetID, so only those that have a nonretail board have deviating patches (like the CXR713F120A found on the DECR1000A TOOL/DECR).

Tool/DECR don't have patches, they flash entire firmwares.

=== Deviating from Retail ===
Please note that without info about the SKU the listing of ID's is pretty useless
{| class="wikitable sortable"
|-
! sys_con_firmware package !! 1.00-1.30 !! 1.30-1.80 !! 1.81-2.80 !! 3.00-3.30 !! 3.40 !! 3.41-4.11 !! SoftID !! Notes
|-
| ? || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || {{No}} || 0B67 || Debug/DEX
|-
|}

== Usage ==

The firmware PUP's contains a collection of patches for all the different hardware revisions of syscon's chips used in different motherboard models.

The ps3swu.self (system updater) decides wich applicable [[Syscon Hardware]] is present and installs the needed package update(s) accordingly (via updater manager ss service).

Which syscon version and which patches are installed can be seen in [[More_System_Information]]

== Decryption ==
Packages can be decrypted with the unpkg tool. Decrypted content of the updates appears to always be 0x1000 bytes (4KB).

== Header ==
The header format is partially unknown at this stage.
All the Firmwares patches are written in little endian.

{| class="wikitable sortable"
|-
! Offset !! Lenght !! Notes
|-
| 0x0 || 0x4 || Header
|-
| 0x4 || 0x20 || SHA ?
|-
| 0x24 || 0x4 || header offset?
|-
| 0x28 || 0x4 || file size
|-
| 0x2c || 0x4 || binary size
|-
| 0x30 || 0x10 || IV for aes256cbc?
|-
| 0x40 || 0xfc0 || binary
|-
|}

=== Samples ===
<pre>
00000000  1B 2D 70 0F AB 5E B3 99 68 20 FE 3D E1 80 6A 1D  .-p.«^³™h þ=á€j.
00000010  B8 FD 37 CF CD 45 85 AB 51 F7 05 E3 EA 32 A5 EA  ¸ý7ÏÍE…«Q÷.ãê2¥ê
00000020  67 45 F9 48 00 00 00 00 00 10 00 00 C0 0F 00 00  gEùH........À...
00000030  8B 04 07 F9 9B A2 90 3A 75 89 F1 42 12 59 DA 0D  ‹..ù›¢.:u‰ñB.YÚ.
00000040  21 7C A2 C3 5A E4 78 00 10 8D 4B F7 A2 73 9C 63  !|¢ÃZäx...K÷¢sœc
00000050  5D 8D 5D 49 16 C7 6F 2C AD 33 FE 1F D3 6C A1 CA  ].]I.Ço,.3þ.Ól¡Ê
00000060  BA AD 2B FE 8F 33 71 D7 C5 E6 5C FF BF 77 6C 80  º.+þ.3q×Åæ\ÿ¿wl€
00000070  F2 BE 11 BB 3C 52 52 DC A9 68 E5 24 AD 4F F3 48  ò¾.»<RRÜ©hå$.OóH
</pre>

-From v1.0.4c2_TMU510_u-
<pre>
00000000   73 79 73 31 73 47 59 5D  FB 85 3B 7B 4A 28 10 5D   sys1sGY]û…;{J( ]
00000010   46 EE 8C 01 3C B4 F1 82  1E 18 4F B7 4A 56 FC C7   FîŒ <´ñ‚  O·JVüÇ
00000020   FF 83 0B E0 00 00 00 00  40 00 06 00 00 00 06 00   ÿƒ à    @       
00000030   69 B6 02 69 3A 97 8B 1C  4E 18 D4 E0 63 7D CA 94   i¶ i:—‹ N Ôàc}Ê”
00000040   4B A0 79 34 79 41 BD 09  BB 68 D4 0A A0 B7 05 78   K y4yA½ »hÔ  · x
00000050   D9 8F 8F 28 6C 9A 1B 61  CF A1 E7 49 7D CA C4 A3   Ù  (lš aÏ¡çI}ÊÄ£
00000060   A4 4D 4B E0 AE 48 86 03  B1 43 F2 47 C0 C4 1D 4F   ¤MKà®H† ±CòGÀÄ O
00000070   FA E8 43 A7 1E 6E 79 8C  E5 FF 04 20 E9 44 09 B5   úèC§ nyŒåÿ  éD µ
</pre>

=== Observations ===
* The first 4 bytes (0x1B2D700F) appear static in each package.
* The next 20 bytes appear to change with each package
* The following 12 bytes (0x0000000000100000C00F0000) also appear static, but it's the firmware size and fw size - header size; infact if correctly converted to little endian 00000000 00001000 00000fc0, where 00000000 is Unknown, 00001000 is 4096 in dec (file size) and 00000fc0 is 4032 in dec (update size).
* On the DECH fw, the update works in the same way: 000000004000060000000600 converted will be: 00000000 00060040 00060000, where, 00000000 is probably padding, file size 00060040, 00060000 update size
* the first 40 bytes probably are IV + HASH + update infos. probably the algorithm used is AES.

== Access to Syscon from Linux ==
Access SysCon ROM without needing ps3dm-utils: http://wiki.gitbrew.org/wikibrew/PS3:HvReverseEngineering#SYSCON

{{Console}}