NX Devkit - CAM_I2C doesn't work

hello AurelienV,

here’s camera device tree, NX enable cam_i2cmux for Raspberry Pi camera v2, IMX219 camera sensors.
$L4T_Sources/r32.4.3/Linux_for_Tegra/source/public/hardware/nvidia/platform/t19x/jakku/kernel-dts/common/tegra194-camera-rbpcv2-imx219.dtsi

        cam_i2cmux {
                i2c_0:i2c@0 {
                        imx219_cam0: rbpcv2_imx219_a@10 {
                ...
                i2c_1: i2c@1 {
                        imx219_cam1: rbpcv2_imx219_c@10 {

had you have a try to reverse the FFC connection?
there’s I2C no acknowledge errors during your kernel init stages,

xavier-nx kernel: [ 5.104228] tegra-i2c 3180000.i2c: no acknowledge from address 0x10
xavier-nx kernel: [ 5.104305] imx219 9-0010: imx219_board_setup: error during i2c read probe (-121)
xavier-nx kernel: [ 5.104369] imx219 9-0010: board setup failed

could you please share the manufacturer of your IMX219 modules.
you may also check Topic 75042 for reference.
thanks