I had to search this up and apparently its when the phone switches to the ultra wide camera mode. I didnt know it could focus on something so close up. You learn something every day
It looks like all the switches are already being used as two way.
You could swap one of the modules for an intermediate, but if you are going to swap modules, I think putting in a double-wide two-way module makes far sense. Part number is MD024xx where xx is the finish you want. I'm not going to try to figure out from a photo which finish the OP has.
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