I flashed TX2 using latest NVIDIA L4T 32.1 - JAX-TX2-Jetson_Linux_R32.1.0_aarch64.tbz2. It boots and runs fine. But I see strange messages about TOS during boot:
[0004.181] W> Failed to send NS DRAM Ranges to TOS
[0004.185] W> Failed to lock interface between BL and TOS
[0004.190] E> tegrabl_display_clear: display is not initialized
[0004.196] W> Boot logo display failed…
[0004.200] I> Kernel EP: 0x84600000, DTB: 0x80000000
U-Boot 2016.07-g0eb73f4 (Mar 13 2019 - 00:20:34 -0700)
TEGRA186
Model: NVIDIA P2771-0000-500
DRAM: 7.8 GiB
MC: Tegra SD/MMC: 0, Tegra SD/MMC: 1
Does it mean that TOS image is missing? Expected?