Thanks to all of you who were supportive, It turns our you could actually disconnect it and reconnect and that’s what I did, although somehow after slight movement in the cable after connecting it to the modem it broke ! if it breaks you will need to get a technician… You can simply disconnect and reconnect but you will have to be very very careful because it’s incredibly delicate, you could easily get dust or scratch/break the fiber easily, you need to wipe it before reconnecting