Downgrading Firmware

Downgrading Firmware

This page is more like a subindex page to other pages :)

Lowest Applicable Firmware

• Look up in SKU Models Table to see what other reported
• Using fake upgrade to get lowest firmware version info
• Use get_applicable_version.pkg to receive lower/upper UDP broadcasts

HowTo/Guides & Documentation

• Downgrading with PSgrade Dongle (using Factory Service Mode)
• Remarry Bluray Drive (uses Factory Service Mode)
• QA Downgrading (QA flag extra and QA Recovery Downgrading)
• Downgrading with linux (for consoles with OtherOS or OtherOS++)
• Hardware flashing (Wiring and comparison of hardware flashers: Infectus, Progskeet 1.0 / 1.1 / Progskeet 1.2, Teensy 2.0++, PNM, PIC32MX etc)
• Flash (main reference page about flash content)
• Validating flash dumps (always validate before reflashing, 'what to check' guide page)
• Downgrading with Hardware flasher (reflashing with hardware flasher - both NAND/NOR)
  • Downgrading with NAND flasher (older guides, NAND specific)
  • Downgrading with NOR flasher (older guides, NOR specific)

Note: If your firmware is 3.56 or higher then there are currently no ways to downgrade using software only. You can use Hardware flashers on any firmware, including 3.56 and above.

Problems and Issues

• Downgrade BluRay Playback Issue (description of NAND consoles and Factory Service Mode issues)

Automation for business/test purposes

BwE has made an automator for setting up files needed for downgrading.

The simple script is placed on your USB and when run (in Windows) it gives you options to load Lv2Diag.self files, FSM .PUP's, Recovery Mode .PUPs as well as the copy and management of bkpps3.bin files for clients. The script also has md5 checking and other fail-safes.

The package itself is a 700+mb pack with everything, but that is yet to be uploaded. However, a version without the firmware files is available here and can still be used.