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<div style="float:right">[[File:NAND-downgrading-steps.png|200px|thumb|left|NAND flasher downgrader steps]]<br />[[File:NOR-downgrading-steps.png|200px|thumb|left|NOR flasher downgrader steps]]<br />[[File:Downgrading-installation-steps.png|200px|thumb|left|Downgrading installation steps ]]</div>
<div style="float:right">[[File:NAND-downgrading-steps.png|200px|thumb|left|NAND flasher downgrader steps]]<br />[[File:NOR-downgrading-steps.png|200px|thumb|left|NOR flasher downgrader steps]]<br />[[File:Downgrading-installation-steps.png|200px|thumb|left|Downgrading installation steps ]]</div>


== Dump ==
Connect your [[Hardware flashing]] device and '''[[Validating_flash_dumps|make sure you are getting 100% correct, valid, verified dumps]].'''
== Checking console capability of running 3.55 ==
== Checking console capability of running 3.55 ==
Compare the values found in your dump with those in the [[Downgrading_with_Hardware_flasher#metldr.2Bbootldr_sizes|'''metldr+bootldr sizes''']] table
Compare the values found in your dump with those in the [[Downgrading_with_Hardware_flasher#metldr.2Bbootldr_sizes|'''metldr+bootldr sizes''']] table
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==Patch the dump & Reflash it to the console ==
==Patch the dump & Reflash it to the console ==
<div style="float:right">[[File:Flowrebuilder-Autopatcher.png|200px|thumb|left|Flowrebuilder : Autopatcher]][[File:Flowrebuilder-Autopatcher-completed.png|200px|thumb|right|Flowrebuilder : Autopatcher - completed]]</div>
<div style="float:right">[[File:Flowrebuilder-Autopatcher.png|200px|thumb|left|Flowrebuilder : Autopatcher]]<br />[[File:Flowrebuilder-Autopatcher-completed.png|200px|thumb|left|Flowrebuilder : Autopatcher - completed]]</div>


For patching you can use:
For patching you can use:
* Hexeditor (e.g. [http://mh-nexus.de/en/hxd/ HxD])
* Hexeditor (e.g. [http://mh-nexus.de/en/hxd/ HxD])
* [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/Tools/Flowrebuilder/ Flowrebuilder] (both NOR + unified NAND)
* [http://www.ps3devwiki.com/files/flash/Tools/Flowrebuilder/ Flowrebuilder] (both NOR + unified NAND)
* in case of Progskeet, latest Winskeet/iSkeet/YASkeet (both NOR + unified NAND)
* in case of Progskeet, latest Winskeet/iSkeet/YASkeet (both NOR + unified NAND)
* [http://www.betterwayelectronics.com/files/BwE_NOR-NAND_Patcher.rar BwE NOR/NAND Patcher]
* [http://www.betterwayelectronics.com/files/BwE_NOR-NAND_Patcher.rar BwE NOR/NAND Patcher]
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=== NAND ===
=== NAND ===
Use [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NAND%20downgrade/ NAND patches] only on NAND consoles, not on NOR!
Use [http://www.ps3devwiki.com/files/flash/patches/NAND%20downgrade/ NAND patches] only on NAND consoles, not on NOR!
{|class="wikitable"
{|class="wikitable"
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! Target area !! Patchfile !! NAND Offset !! Paste length !! Remarks
! Target area !! Patchfile !! NAND Offset !! Paste length !! Remarks
|-
|-
| ROS0 || [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NAND%20downgrade/NAND-patch1-0x0C0030.bin patch1&nbsp;(7&nbsp;MB)] || 0x0C0030 || 0x6FFFE0 || CoreOS (prepatched 3.55)
| ROS0 || [http://www.ps3devwiki.com/files/flash/patches/NAND%20downgrade/NAND-patch1-0x0C0030.bin patch1&nbsp;(7&nbsp;MB)] || 0x0C0030 || 0x6FFFE0 || CoreOS (prepatched 3.55)
|-
|-
| ROS1 || [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NAND%20downgrade/NAND-patch1-0x0C0030.bin patch1&nbsp;(7&nbsp;MB)] || 0x7C0020 || 0x6FFFE0 || CoreOS (SAME as ros0)
| ROS1 || [http://www.ps3devwiki.com/files/flash/patches/NAND%20downgrade/NAND-patch1-0x0C0030.bin patch1&nbsp;(7&nbsp;MB)] || 0x7C0020 || 0x6FFFE0 || CoreOS (SAME as ros0)
|-
|-
| trvk_prg0&nbsp;(0x91800)<br />trvk_prg1&nbsp;(0x92810)<br />trvk_pkg&nbsp;(0x93800) || [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NAND%20downgrade/NAND-patch2-0x91800.bin patch2&nbsp;(16&nbsp;KB)] || 0x91800 || 0x4000 || one big patch overlapping several revoke area's
| trvk_prg0&nbsp;(0x91800)<br />trvk_prg1&nbsp;(0x92810)<br />trvk_pkg&nbsp;(0x93800) || [http://www.ps3devwiki.com/files/flash/patches/NAND%20downgrade/NAND-patch2-0x91800.bin patch2&nbsp;(16&nbsp;KB)] || 0x91800 || 0x4000 || one big patch overlapping several revoke area's
|-
|-
|}
|}
(above patches in a single package + autopatcher file: [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NAND%20downgrade.rar NAND downgrade.rar] [https://www.mirrorcreator.com/files/1XYAWMUJ/NAND_downgrade.rar_links])
(above patches in a single package + autopatcher file: [http://www.ps3devwiki.com/files/flash/patches/NAND%20downgrade.rar NAND downgrade.rar] [https://www.mirrorcreator.com/files/1XYAWMUJ/NAND_downgrade.rar_links])
 
=== NOR ===
Use [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NOR%20downgrade/ NOR patches] only on NOR consoles, not on NAND!
{|class="wikitable"
|-
! Target area !! Patchfile !! NOR Offset !! Paste length !! Remarks
|-
| ROS0 || [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NOR%20downgrade/patch1 patch1 (7 MB)] || 0x0C0010 || 0x6FFFE0 || CoreOS (prepatched 3.55)
|-
| ROS1 || [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NOR%20downgrade/patch1 patch1 (7 MB)] || 0x7C0010 || 0x6FFFE0 || CoreOS (SAME as ros0)
|-
| trvk_prg0 (0x40000) <br />trvk_prg1 (0x60000)<br />trvk_pkg0 (0x80000) <br />trvk_pkg1 (0xA0000) || [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NOR%20downgrade/rvk-040000 rvk-040000 (512 KB)] || 0x40000 || 0x80000 || one big patch<br />overlapping several revoke area's
|-
|}
(above patches in a single package + autopatcher file: [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/patches/NOR%20downgrade.rar NOR downgrade.rar] [https://www.mirrorcreator.com/files/J9ETURMM/NOR_downgrade.rar_links])
 
==== E3 Flasher ====
Use these instead, otherwise you get into a maze of bytereversing: [[E3#Manual_E3_downgrade_v2|E3 Manual downgrade patches]] or use [http://www.betterwayelectronics.com/files/BwE_NOR-NAND_Patcher.rar BwE NOR/NAND Patcher]


==Reinstall firmware in Factory Service Mode==
==Reinstall firmware in Factory Service Mode==
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! Filename !! Size !! Remarks !! <code>SHA1</code> !! <code>MD5</code> !! <code>CRC32</code> !! <code>CRC16</code>
! Filename !! Size !! Remarks !! <code>SHA1</code> !! <code>MD5</code> !! <code>CRC32</code> !! <code>CRC16</code>
|-
|-
| style="text-align:center; background-color:#DDFFDD;" | [https://archive.org/download/downgrade_files_3.55_br_safe/Get%20Into%20FSM/Lv2diag.self Lv2diag.self&nbsp;(365.5&nbsp;KB) ]|| style="text-align:center; background-color:#DDFFDD;" | 374272 || style="text-align:center; background-color:#DDFFDD;" | 3.55 in FSM * || style="text-align:center; background-color:#DDFFDD;" | <code>[https://www.google.com/#q=1ED037740D67FEBACA6449CABFF4E95400C9E2EE 1ED037740D67FEBACA6449CABFF4E95400C9E2EE]</code> || style="text-align:center; background-color:#DDFFDD;" | <code>[https://www.google.com/#q=099F33A7967F99E91C07E870FD78B3DB 099F33A7967F99E91C07E870FD78B3DB]</code> || style="text-align:center; background-color:#DDFFDD;" | <code>9338ABF2</code> || style="text-align:center; background-color:#DDFFDD;" | <code>4FCC</code>
| style="text-align:center; background-color:#DDFFDD;" | [https://mega.co.nz/#!G9sCUaxR!r0jee7_CbjLeDXcQ38ve1_y-aLpLO-tYENlg1ixCxLM Lv2diag.self&nbsp;(365.5&nbsp;KB)] || style="text-align:center; background-color:#DDFFDD;" | 374272 || style="text-align:center; background-color:#DDFFDD;" | 3.55 in FSM * || style="text-align:center; background-color:#DDFFDD;" | <code>[https://www.google.com/#q=1ED037740D67FEBACA6449CABFF4E95400C9E2EE 1ED037740D67FEBACA6449CABFF4E95400C9E2EE]</code> || style="text-align:center; background-color:#DDFFDD;" | <code>[https://www.google.com/#q=099F33A7967F99E91C07E870FD78B3DB 099F33A7967F99E91C07E870FD78B3DB]</code> || style="text-align:center; background-color:#DDFFDD;" | <code>9338ABF2</code> || style="text-align:center; background-color:#DDFFDD;" | <code>4FCC</code>
|-
|-
<!--//
<!--//
| [https://web.archive.org/web/*/http://ps3devwiki.com/files/lv2diag/3.50%20downgrader/FILE1/Lv2diag.self Lv2diag.self (365.5 KB)] || 374272 || 3.50- in FSM || <code>[https://www.google.com/#q=1E770010A3A6EF572AF39783A04DF792670998D3 1E770010A3A6EF572AF39783A04DF792670998D3]</code> || <code>[https://www.google.com/#q=90168C03B217CE775A7839D87BBFF2A3 90168C03B217CE775A7839D87BBFF2A3]</code> || <code>D1F0AAFC</code> || <code>CD8D</code>
| [http://www.ps3devwiki.com/files/lv2diag/3.50%20downgrader/FILE1/Lv2diag.self Lv2diag.self&nbsp;(365.5&nbsp;KB)] || 374272 || 3.50- in FSM || <code>[https://www.google.com/#q=1E770010A3A6EF572AF39783A04DF792670998D3 1E770010A3A6EF572AF39783A04DF792670998D3]</code> || <code>[https://www.google.com/#q=90168C03B217CE775A7839D87BBFF2A3 90168C03B217CE775A7839D87BBFF2A3]</code> || <code>D1F0AAFC</code> || <code>CD8D</code>
|- //-->
|- //-->
| style="text-align:center; background-color:#FFDDDD;" | [https://archive.org/download/downgrade_files_3.55_br_safe/Lv2diag.self%20%28file%201%29%20by%20JaicraB/ Lv2diag.self&nbsp;(227.38&nbsp;KB)] || style="text-align:center; background-color:#FFDDDD;" | 232832 || style="text-align:center; background-color:#FFDDDD;" | jaicrab noBD patched || style="text-align:center; background-color:#FFDDDD;" | <code>[https://www.google.com/#q=180823003B086D9D49BC7F83BEA9C769BF73A5EA 180823003B086D9D49BC7F83BEA9C769BF73A5EA]</code> || style="text-align:center; background-color:#FFDDDD;" | <code>[https://www.google.com/#q=3615770407C0C3FA00D8CA49C8ADB362 3615770407C0C3FA00D8CA49C8ADB362]</code> || style="text-align:center; background-color:#FFDDDD;" | <code>25E85CFB</code> || style="text-align:center; background-color:#FFDDDD;" | <code>EDD0</code>
| style="text-align:center; background-color:#FFDDDD;" | [http://www.ps3devwiki.com/files/lv2diag/3.55%20jaicrab%20downgrader/Lv2diag.self Lv2diag.self&nbsp;(227.38&nbsp;KB)] || style="text-align:center; background-color:#FFDDDD;" | 232832 || style="text-align:center; background-color:#FFDDDD;" | jaicrab noBD patched || style="text-align:center; background-color:#FFDDDD;" | <code>[https://www.google.com/#q=180823003B086D9D49BC7F83BEA9C769BF73A5EA 180823003B086D9D49BC7F83BEA9C769BF73A5EA]</code> || style="text-align:center; background-color:#FFDDDD;" | <code>[https://www.google.com/#q=3615770407C0C3FA00D8CA49C8ADB362 3615770407C0C3FA00D8CA49C8ADB362]</code> || style="text-align:center; background-color:#FFDDDD;" | <code>25E85CFB</code> || style="text-align:center; background-color:#FFDDDD;" | <code>EDD0</code>
|-
|-
|}
|}
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! Filename !! Size !! Remarks !! <code>SHA1</code> !! <code>MD5</code> !! <code>CRC32</code> !! <code>CRC16</code>
! Filename !! Size !! Remarks !! <code>SHA1</code> !! <code>MD5</code> !! <code>CRC32</code> !! <code>CRC16</code>
|-
|-
| [https://archive.org/download/lv-2diag.self.-560.v-0.1-brewology-com_202403/Lv2diag.self Lv2diag.self&nbsp;(201.42&nbsp;KB) ]|| 206256 || get out FSM || <code>[https://www.google.com/#q=329877CBD47B994EC0AFCEA6AF98114FD9E5128B 329877CBD47B994EC0AFCEA6AF98114FD9E5128B]</code> || <code>[https://www.google.com/#q=7A20BFDAE65EEFB47A4425DB1B52DCDE 7A20BFDAE65EEFB47A4425DB1B52DCDE]</code> || <code>72740080</code> || <code>502A</code>
| [https://mega.co.nz/#!ixsyCBCR!ub3fDfhr3fB5CSc2f4DqcsOUZxfYkXZteOSLvicowgo Lv2diag.self&nbsp;(201.42&nbsp;KB)] || 206256 || get out FSM || <code>[https://www.google.com/#q=329877CBD47B994EC0AFCEA6AF98114FD9E5128B 329877CBD47B994EC0AFCEA6AF98114FD9E5128B]</code> || <code>[https://www.google.com/#q=7A20BFDAE65EEFB47A4425DB1B52DCDE 7A20BFDAE65EEFB47A4425DB1B52DCDE]</code> || <code>72740080</code> || <code>502A</code>
|-
|-
|}
|}
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== Dehashing ==
== Dehashing ==
{{Dehashing}}
{{Dehashing}}
=== QA dehashing ===
{{QA dehashing}}


=== reFSM dehashing ===
=== reFSM dehashing ===
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   <eussNL> there is no need for factory mode after dehashing complete
   <eussNL> there is no need for factory mode after dehashing complete
   <eussNL> in fact, if everything works on OFW 3.55 after dehashing,  
   <eussNL> in fact, if everything works on OFW 3.55 after dehashing,  
   <eussNL> you can install [https://web.archive.org/web/*/http://ps3devwiki.com/files/firmware/MFW-CEX/Downgrader/Rogero-V3.2/ Rogero V3.2] in recovery and [https://web.archive.org/web/*/http://ps3devwiki.com/files/flash/Tools/toggle-qa/ QA-extra] flag it   
   <eussNL> you can install [http://www.ps3devwiki.com/files/firmware/MFW-CEX/Downgrader/Rogero-V3.2/ Rogero V3.2] in recovery and [http://www.ps3devwiki.com/files/flash/Tools/toggle-qa/ QA-extra] flag it   
   <eussNL> if OFW 3.55 works then you proven that you dehashed
   <eussNL> if OFW 3.55 works then you proven that you dehashed
   <eussNL> so after that you can install whatever MFW 3.55 you want
   <eussNL> so after that you can install whatever MFW 3.55 you want
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{{Hardware Flashers}}<noinclude>
{{Hardware Flashers}}<noinclude>[[Category:Main]]</noinclude>
[[Category:Main]]
</noinclude>
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