Method Three: Debug the Huawei P9. Still no luck? On your Huawei P9, select Settings and then browse for “developer options”. Select “USB debugging” and turn it on. Now connect the Huawei P9 to the PC via the USB cable and see if it is recognized. Method Four: Try Another Cable High detailed and realistic Huawei P9 Lite White, with SD/SIM card tray, modelled in 3ds Max 2014 and rendered with V-Ray 2.40.04. - 6 official display wallpapers with editable PSD file (you can choose your own text and easily adjust icons in the Photoshop) - Product contains microSD & nanoSIM card as a bonus. wV4Jq.