Talk:Downgrading Firmware

== http://www.psdevwiki.com/ps3/index.php?title=Downgrading_Firmware&action=rollback&from=105.229.119.47&token=e6368223eb3d07d663a3e714027cecf2%2B\

on minver 3.60 consoles (thus hardcoded lockout in metldr and possibly bootldr + syscon:

• no 3.56+ private keys can be used/obtained
• no 3.56+ downgrade can be done
• no 3.55(-) keysets can be used

edit revoked for above reason, no proof given and false claim removed.

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PS3devwiki links to splitted guide sections needed for hardware flasher downgrade:

Downgradeability of consoles:

• SKU and date based:
  • http://www.ps3devwiki.com/wiki/SKU_Models#Retail_Models
  • http://www.ps3devwiki.com/wiki/SKU_Models#Datecode
• Flashdump based:
  • http://www.ps3devwiki.com/wiki/Validating_flash_dumps#Check_metldr.2Bbootldr_sizes
• MinVerCheck / fake update check:
  • http://www.ps3devwiki.com/wiki/Talk:Playstation_Update_Package_%28PUP%29#Using_fake_upgrade_to_get_lowest_firmware_version_info

Hooking up flasher and making dumps:

• http://www.ps3devwiki.com/wiki/Hardware_flashing
• http://www.ps3devwiki.com/wiki/Progskeet

Validating:

• http://www.ps3devwiki.com/wiki/Validating_flash_dumps

Patching, Downgrading and Dehashing

• http://www.ps3devwiki.com/wiki/Downgrading_with_Hardware_flasher

Usuable downgrader PUPs:

• http://www.ps3devwiki.com/files/firmware/MFW-CEX/Downgrader/Rogero-V31/
• http://www.ps3devwiki.com/wiki/Talk:Downgrading_with_Hardware_flasher

Beyond downgrading: dual/multiboot:

• http://www.ps3devwiki.com/wiki/Dual_Firmware

Files links:

• PSGrade: http://www.ps3devwiki.com/files/PSGrade/
  • http://www.ps3devwiki.com/wiki/Talk:Downgrading_with_PSgrade_Dongle
• Firmwares: http://www.ps3devwiki.com/files/firmware/
• Flash: http://www.ps3devwiki.com/files/flash/
• Servicemode lv2diags: http://www.ps3devwiki.com/files/lv2diag/

IRC:

• (ef.net): #ps3downgrade