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N.B. Please read the disclaimer at the bottom of the page before downloading and using this software. Thanks!

Unofficial firmware downloads:
Download SNES PowerPak firmware v3.00 »MUFASA« build #11331 (source included)
N.B. This is the latest release. The included in-system flash updater supports all known previous v1.0X, v2.0X (non-beta), and v3.00 (with a build no. < 11331) firmware versions, and all currently known SNES PowerPak hardware revisions (revD, revE, revH with either an AT29C010A or an SST39SF010A type of flash ROM chip).
View latest/WIP changes on GitHub

With this unofficial firmware for the SNES PowerPak, you can enjoy the following advantages over the stock v1.0X software:

  • Up to 56 characters per filename are displayed on the screen thanks to the SNES's horizontal hi-res mode.
  • A settings menu lets you change the PowerPak's configuration at any time.
  • The SPC player actually works. ;-)
  • A more stable user interface with more intuitive joypad button mapping.
  • Full theme support, i.e. with a bit of skill, you can customize the UI to your own liking. Or, just use any of the themes supplied within this release. :-D
  • Better performance thanks to a unified software design that takes advantage of the SNES's 16-bit capabilities.
  • In-system update flashing.
  • ... and more! :-)

(coming soon)

Installing the firmware does not require an external programming device. It does, however, require nerves of steel. ;-) If anything goes wrong during flashing, you might end up not with an updated PowerPak, but with a rather expensive paperweight (unless you find someone with the skill to fix it for you). Please keep in mind that just so much as a power failure is enough to potentially ruin your cart!

If you still feel confident, here's how to proceed:

  1. Determine the current version of your firmware. You'll see the version number once you power up your SNES PowerPak. If it says, »Boot ROM v1.0X« (where X can be any number), then you have a version 1 firmware. If you spot the word »SIMBA« anywhere on the screen, then you have a version 2 firmware.
  2. Copy the contents of [this release's archive root]/POWERPAK (sans the SAVES subfolder) to the POWERPAK directory on your CF card, replacing any existing file(s) (i.e., TOPLEVEL.BIT).
  3. Browse to [your CF card root]/POWERPAK. Delete SI.MAP. Then, rename the SIvX.MAP file that matches your installed firmware number from step 1 (i.e., SIv1.MAP for a version 1 firmware, and SIv2.MAP for a version 2 firmware) to SI.MAP.
  4. Power on your SNES PowerPak, and follow the on-screen instructions.
  5. After the upgrade procedure has completed successfully, you can safely delete all *.TXT and *.MAP files from [your CF card root]/POWERPAK. :-)

Good luck ... and have fun! :-D

Older releases:
N.B. Don't use these anymore. They are listed here for archival purposes only.
Download SNES PowerPak firmware v3.00 build #11310 (source included)
Download SNES PowerPak firmware v2.02 (source included)
Download SNES PowerPak firmware v2.01 (source included)
Download SNES PowerPak firmware v2.00 (source included)
Download SNES PowerPak firmware v2.00-beta2 (source included)
Download SNES PowerPak firmware v2.00-beta1 (source included)

This software is freeware. It is provided as is and without express or implied warranty of any kind. Despite thorough testing, this software is not guaranteed to be bug-free. There might even be critical issues in this software which could at worst corrupt data on your CF card, render your SNES PowerPak useless, and/or damage your SNES control deck as well as any accessory connected to it (like joypads, your TV set, etc.).

The developer, ManuLöwe, will not be held responsible for any losses, damages, injuries, and/or legal consequences directly or indirectly caused by this software and/or the documents accompanying it, which you agree upon by downloading, installing and using this software.

This being unofficial software, you will definitely void the five-year replacement warranty granted by the manufacturer of your SNES PowerPak!

Lastly, all trademarks mentioned on this page are the property of their respective owners. ManuLöwe is not affiliated in any way with The Retrozone / RetroUSB or Nintendo.

Geschrieben von ManuLöwe | am