NVIDIA Jetson: Is there a way to install an older version of Jetpack with the SDK Manager?

Jetson

Try $ sdkmanager --archivedversions.
For details, please refer to the document below.
・NVIDIA SDK Manager: Command-Line Install
https://docs.nvidia.com/sdk-manager/sdkm-command-line-install/

Experienced FAE
Free consultation is available.

From specific product specifications to parts selection, the Company FAE will answer your technical concerns free of charge. Please feel free to contact us.