SPI Communication broken after "apt-get update"

Hi!
As the title suggests, SPI communication was working fine on the Orin Nano (enabled using Jetson-IO). After a apt-get upgrade and apt-get update, a loopback test (using spidev_test) returns only 0s, indicating SPI is not setup correctly.
Any help is appreciated.
Thanks

Hi kkuvalek,

Are you using the devkit or custom board for Orin Nano?
What’s your Jetpack version in use?

Please share the result of the following command on your board.

$ cat /etc/nv_tegra_release
$ cat /etc/nv_boot_control.conf
  1. It is the devkit.
  2. Jetpack Version: L4t 5.1.3 35.5.0
nathanis@mmHipExoOrinNano:~$ cat /etc/nv_tegra_release
# R35 (release), REVISION: 5.0, GCID: 35550185, BOARD: t186ref, EABI: aarch64, DATE: Tue Feb 20 04:46:31 UTC 2024
nathanis@mmHipExoOrinNano:~$ cat /etc/nv_boot_control.conf
TNSPEC 3767-300-0005-K.2-1-0-jetson-orin-nano-devkit-
COMPATIBLE_SPEC 3767--0005--1--jetson-orin-nano-devkit-
TEGRA_LEGACY_UPDATE false
TEGRA_BOOT_STORAGE mmcblk1
TEGRA_EMMC_ONLY false
TEGRA_CHIPID 0x23
TEGRA_OTA_BOOT_DEVICE /dev/mtdblock0
TEGRA_OTA_GPT_DEVICE /dev/mtdblock0

This is the output for the commands you provided.