Thanks @katharinechui , amazing work! I will definitely try back home in few weeks, I have two devices and hope than one will be using /dev/sefp0
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Side question: I also tried it with @aribk a while ago without much success, our port was based an Halium7/LineageOS 14 and I spent hours trying to find an issue in the image format: the camera was able to do A/B/C vs the format expected by the camera app being X/Y/Z. Did you encountered such thing? I still wonder what was the solution