Use shasum -a 256 to validate your download before using it. Read Help article for detailed instruction.
Copy Shell updater app to freshly formatted USB stick. To avoid hidden malware, always format the USB drive before transferring files.
Use shasum -a 256 to validate your download before using it.
Read Help article for detailed instruction.
Copy to the same USB drive.
4. Prepare offline device
Install a clean OS on an empty hard drive or external boot disk. This could be:
Your current machine (dual-boot or temp clean install)
A secondary dedicated device
Ensure itβs fully offline. Disconnect all other drives and physically disable Wi-Fi/Bluetooth if possible.
5. Run standalone updater and follow instructions
Boot your offline machine, plug in the USB, and launch the updater.
Follow on-screen steps to update firmware and database.
Shell now runs the latest software without ever touching an internet-connected OS.
What's next?
Keep your Shell secure and up-to-date and join our community
Have questions?
Reach out to our team or engage with our community on Discord or X.