c is in my opinion a copy of the original part ... but after installation, I can charge my phone well but I hardly captures more my network (4 bars with old module..2 peak with the receipts and even if all goes well) short not too happy with this purchase which of course is to be avoided d in damage had taken two to repair my 2 Samsung note ... I have sent an email to the dealer, I await his answer about it case follow ..
