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Hello how are u all? Recently i just changed the iphone 12 housing There is black tiny square thing on mag safe magnet it looks like made of magnet My new housing doesn’t have black thing so i also transfer but it’s just sticky onto it What is this for? I shouldn’t transfer to another? The black thing located in green Question Mark area as below picture

Another question There is too much static noise while recording video Is this very normal? Or some wrong with my repair? Plz let me know thanks guys

Hi,man.I saw your question.2nd 12 housing maybe have not magsafe. it’s tape.Originally, 12 housing have Qi coile. it support mag safe.your first replemane housing have coile,I think.I recommend you don’t replace new one.If you want to replacement storongly, you should buy from a reputable supplier.And your another question when you hear noise during recording or after recording.you use original parts or replace it?if you use not original parts,maybe it broken.Buy a new one,please.Thank your question,have a good day.