Thank for your reply !
i’ve tryed sdkmanager --archivedversions but i’m not sure i understand how to use it.
Anyway, i can find the good version of what i search in the link you sent (v32.3.1), but i don’t really understand what i have to download on the corresponding page ? https://developer.nvidia.com/embedded/l4t-3231-archive
Maybe it would help if i clarify the context. I try to reproduce what you already described in this post : https://forums.developer.nvidia.com/t/any-fast-way-for-cloning-agx-xavier/183398/2?u=martin.morand
but i don’t have the Linux_for_Tegra of my version of AGX Xavier’s JetPack version (4.3). So i try to get it.