A lot of trouble to be recognized by my Wiko CinkPeax 2

I had a Sandisk Mobile Ultra 16GB which worked well (PC, Mobile, Radio ...) but was a bit limited level size.
This 32GB seemed very well at first until I need to move files on the laptop it took an incredible time to slow suddenly I turn off my phone and put in a microSD card reader and traveled on the PC to which took less than a second (5000 such move files between folders, the boat thing).
The problem is that back in my phone there was no way to recognize the microSD although the phone to PC via the reader no problem ....
Doubting myself a power calibration issue I did make a big transfer data to the microSD from the computer and already seemed as if he would say something because upon insertion "you just disconnect your microSD" .
So my juggling between 16GB and 32GB on this as to eventually recognize it and connect to it.
So it ended up running but for how long because I happened to restart the such and that the microSD is again not recognized (rebellote; branch / disconnects, pray / put a candle).
Most Marant is that on the packaging of the card there is because of the pub for a while their Android app gear is not designed to accommodate low levels of puisance mobile ...

For optimum performance these small components are calibrated definitely on the most powerful gear they have met, which is weak for products that typically use will be made of Mobile PC, and sometimes (when time is short or to transfer some gigas).

Edit it's been a week since this episode of non-operation and I have not disconnected, so I was the grade a bit because of the price half that in the retail ...