I recently got a J4012, which shipped with Jetpack 5.1.3. I immediately flashed it with Jetpack 6, per the wiki instructions, which went smoothly. I subsequently decided that I wanted to revert to 5.1.x because of some issues with 3rd party legacy code that I wanted to run (there are some dependency issues with Jetpack 6). The wiki appears to only have instructions for flashing Jetpack 5.1.2 – would the procedure be the same for Jetpack 5.1.3? (i.e. download driver package and sample rootfs for l4t 35.5.0 and do all the same things listed in the wiki?) Is there a pre-built BSP for 5.1.3 that I could just download and flash, as I did with Jetpack 6?
I am asking this because when I tried flashing with Jetpack 5.1.2 it failed early in the process. My host pc was a fairly fresh install of Ubuntu 20.04, but with kernel 5.15 (does the host kernel matter for flashing Jetpack 5.1.2?).
Anyway, the bottom line is, what do I need to do to get Jetpack 5.1.x flashed on my J4012?