Use USB PAD as USB IN. Since the USB interface requires at least 2MM thickness, if you choose a board thickness of 1.6MM when making the board, please manually raise the USB male port during production. PS: Genius method: padding the SIM card works wonders. Reference schematic diagram: https://oshwhub.com/li-chuang-zhi-neng-ying-jian-bu/sl2-1a-fang-an-yan-zheng-ban , picture:
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