The phone has very little memory and you lose data when you switch from phone to memory card. I m using HUAWEI P9 Lite & Model VNS- AL00. From very beginning display screen became black from The Best Method to Install SD Memory Card on HUAWEI L31 P9 Lite: To start, you need to buy a SD Memory Card for a HUAWEI L31 P9 Lite. Search on for a high quality SD Memory Card for a HUAWEI L31 P9 Lite. Then watch our instructional video how to Install a SD Memory Card on HUAWEI L31 P9 Lite. Carefully, pull out the HUAWEI L31 P9 Lite SD Card Huawei P9 Lite Convert to dual sim full procedure. - Copy downloaded patch file C342OEM on your sd card [Don’t Extarct] - Boot your phone in twrp recovery mode Nov 7, 2016. Solution. #5. The simplest way is to hook the phone up to a computer via USB and view everything as you would from the computer in a folder. You can then easily transfer stuff from the phone to the SD card, as well as saving copies of your personal stuff onto the computer, keeping you from losing them should you have phone problems UxY8.