Right joycon doesn't connect wirelessly

Hello

my right joycon works only when attached on the switch but does not connect wirelessly when taken off, the switch doesn't even recognize it.

It is not an antenna issue, i've already tried replacing it, its not a switch issue as it works with other joycons, the joycon (that doesn't work) doesn't connect wirelessly to any switch i've tried it.

From reading i suspect it being a problem from the bluetooth chip on the motherboard, any suggestions?

edit: I've tried connecting the right joycon to my phone via bluetooth and it doesn't show up but trying with the left one it does show up