My beats solo3 won’t connect to my phone and they won’t go off either

my Beats Solo 3 have been working perfectly for the past 3 months but last night I tried to turn them on and they didn’t. I searched on how to fix that and I managed to turn them on but now they’re just flashing random lights and they won’t connect to my phone

I’ve tried resetting multiple times but to no avail. What do I do now?