Hi, Config index 0 is the default, so you might want to try without the ", UQ_CFG_INDEX_0" in the end. USB_QUIRK(QUALCOMMINC, ZTE_MF730M, 0xf0f7, 0xf0f7, UQ_MSC_NO_GETMAXLUN, UQ_MSC_NO_INQUIRY, UQ_CFG_INDEX_0), --HPS