Ok a small correction the sd cards were not formatted in FAT32 but they were in exFAT (Windows 10 only formats in exFAT now).
So I got a 64GB card to work as soon I formatted in FAT32 it started working.
So in conclusion if you have a teclast x16 pro/power the microsdcard in ANDROID must be formatted in FAT. So windows 10 user’s be careful.