Camera not working

Hi all, I have seen this issue multiple times in the forum, but found no solution to it.
So, as proposed by the moderator I open a new thread here.

I had a imx219 Raspberry V2.1 camera connected, which worked fine. I added a second, identical camera to the second port, and none of them works since then, even if just one (for sure the one that was working before) is connected.
Also checked connectors and blew them out with air. Connectors checked multiple times. Powersupply is out of the box.

[ 2.008029] i2c /dev entries driver
[ 2.010086] i2c i2c-2: Added multiplexed i2c bus 9
[ 2.010544] i2c i2c-2: Added multiplexed i2c bus 10
[ 2.010550] i2c-mux-gpio cam_i2cmux: 2 port mux on 3180000.i2c adapter
[ 2.011010] imx219 9-0010: tegracam sensor driver:imx219_v2.0.6
[ 2.034477] tegra-i2c 3180000.i2c: no acknowledge from address 0x10
[ 2.034534] imx219 9-0010: imx219_board_setup: error during i2c read probe (-121)
[ 2.034603] imx219 9-0010: board setup failed
[ 2.034735] imx219: probe of 9-0010 failed with error -121

I re-imaged the SD sure for 20 times with no success. Camera works fine on a Raspi, thus camera doesn’t seem to be the issue.
There is no dev/video1 or 2 device.
Hope that anyone can help me :-) Thanks a lot in advance

SD Image is newest from yesterday (08-26-2021) with JetPack 4.6

please use this thread for tracking, Topic 187706. thanks