I bought a Mi Box 3S, and replaced the Chinese ROM with a English ROM. Everything works fine, except for SPDIF. With my previous player this worked just great, but the Mi Box just does not work. The settings are ok. In AndroidTV the digital sound is set to SPDIF (when set to automatically it selects PCM), and in Kodi passthrough is enabled. But nothing works ...

Btw: I bought a small spdif-to-jack-convertor I put on my old optical cable (that worked with my previous player).

What can be wrong? Can it be the convertor?