Timeline:

Preparation:
Ensure the laser's power is at its lowest setting [00:37].
Use the infill wire as a guard to prevent damage to the hollow earring [00:45].
Attachment:
Use the smallest point setting on the laser [01:06].
Melt the wire onto the earring [00:51].
Infilling:
Work the melted gold into the split, focusing on the wire and not the earring itself [01:17].
Ensure the split is completely filled before finishing [01:51].
Increase the spot size to smooth the surface [02:10].
Finishing:
Apply black marker pen [02:23].
Use the lowest possible power setting [02:31].
Key Points for Working with Hollow Jewelry

Hollow jewelry is very thin and can be easily damaged by the laser [02:47].
Always use infilling wire to transfer material to the hollow piece [03:15].
Melt the wire onto the job, then work it into the area needing repair [03:01].