@JoaoPt

@jman79 funny I did the same yesterday xD. The culprit is almost certainly the 470uf 16V capacitor (two each unit). I just don't know if I am capable of replace it my self or if should pay. Those...

@bambo TP link is trash. Used to be a good brand, not anymore. No firmware updates, limited config option, and V2 is very different from V1. They maintain the name, but the inside is different...

Can you tell me how to open this product? My V1 are all doing noise and I have no warranty papers.

I I have bough 3 V1 version and 3 V2 version (no warranty paper). The V2 are OK. But ALL THE V1 are doing a high pitch noise (I think it's a bad capacitor). I want to open the shell to pinpoint the...