Right Joycon not recognized after flat replacement

After that I replaced the flat of the SR-SL keys of the right joycon of my switch following a problem that gave me the joycon that was not recognized in horizontal mode. Replaced this but now the joycon is no longer recognized by the console. During insertion, the classic column icon appears but it is white and the console does not recognize the right joycon. Could you help me?

I am attaching screenshot of the problem.