Bose Firmware

Bose's statement on why they no longer offer software downgrades

"https://github.com/tchebb/bose-dfu is an open-source, command-line firmware update tool for certain Bose speakers and headphones. Unlike Bose's official updater, bose-dfu

• runs on Windows, macOS, Linux, and any other OS supported by Rust and HIDAPI
• can downgrade firmware as well as upgrade it
• doesn't rely on a web service to run"

https://github.com/tchebb/bose-dfu/releases

Menu

ced

Bose AE2 SoundLink = Isaac (Firmware Info)
Bose Frames = Celine (Firmware Info)
Bose Frames = Celine2 (Firmware Info)
Bose Frames Tempo = Olivia (Firmware Info)
Bose Frames Tenor/Soprano = Vedder (Firmware Info)
Bose Noise Cancelling Headphones 700 = Goodyear (Firmware Info)
Bose OE SoundLink = Moonraker (Firmware Info)
Bose On-Ear Wireless = Pascal (Firmware Info)
Bose QuietComfort 35 = Wolfcastle (Firmware Info)
Bose QuietComfort 35 II = BayWolf (Firmware Info)
Bose QuietControl 30 = Powder (Firmware Info)
Bose SoundLink Color = Champ (Firmware Info)
Bose SoundLink Color II = Foreman (Firmware Info)
Bose SoundLink Micro = Minnow (Firmware Info)
Bose SoundLink Mini Special Edition = M3 (Firmware Info)
Bose SoundLink Mini II = KCup (Firmware Info)
Bose SoundLink Revolve = Folgers (Firmware Info)
Bose SoundLink Revolve+ = Harvey (Firmware Info)
Bose SoundSport Free = Levi (Firmware Info)
Bose SoundSport Pulse = Flurry (Firmware Info)
Bose SoundSport Wireless = Ice (Firmware Info)
Bose SoundWear Companion speaker = Kleos (Firmware Info)


eb
stetson
bosebuild
pro

Old downgrade method, no longer working
Current version: 7.0.13.4860

BOSE DOWNGRADE PROCESS:

1. Make sure you close the app before replacing the file. You can close it on the taskbar (right click -> exit)
2. Windows :
   1. Download the edited BOSEUPDATER.EXE here (Link to unedited full install of version 6.0.0.4388)
   2. Copy and replace the file in "C:\Program Files (x86)\Bose Updater"
   3. Open the file. If you get a warning that says "Windows protected your PC". Select "More info" and click "Run anyway"
3. macOS :
   1. If you already have the "Bose Updater" app installed. Please Delete.
   2. Download the edited "Bose Updater" app here (Link to unedited full install of version 6.0.0.4388)
   3. Move "Bose Updater" to the "Applications" Folder
   4. Open up Terminal (located in "Applications/Utilities")
   5. In terminal type in : xattr -cr /Applications/"Bose Updater.app"
4. Plug your headset or speaker and go to https://btu.bose.com
5. When prompted launch the app.
6. When you see this screen (Screenshot 1) press the following key combination: 'a' 'd' 'v' 'up arrow' 'down arrow' and you will see the following screen (Screenshot 2)
7. Now you can select the firmware and click on Update.
8. Wait for the update process to complete
   1. WARNING : If you have QC35 II headphones with a serial number that ends in AZ. Do NOT downgrade below 2.1.3. Doing so can BRICK YOUR QC35 II!!!
9. Enjoy your OLDER FIRMWARE! Cheers!

The instructions provided were modified from instructions found on reddit