What is that element on smartphone pcb and what it does?
I have XZ1 Compact and have questions regarding a particular elements (see screenshot)
https://i.imgur.com/FNbXVHF.png
I have three questions:
What this element is for under "12-25" number on the PCB?
Why on the phone back plate the glass, underneath where "12-25" element is located, is darkened? Is it some kind of polarization?
What will happen if that darkened layer is wiped out and becomes transparent, what it will affect?
Thank you
Ist dies eine gute Frage?
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