I installed an SD card in my new ZFive, but I can't make it a part of the internal memory. The OS is Android 6.0.1. The card is a high speed Samsung 32 GB. It doesn't look like an error. The setting to format it as internal storage is missing. Anybody else have this issue or know how to fix it? As the phone has only 3 gigs of space, there isn't much room for my apps. It does work as a portable SD.