Why is my SD card not working ?

[Android Central Question]

Hello everyone, first time posting here.

Today, I receveived my SD Card from mail and I put it in my Samsung Galaxy A3 2016 only to not see it show up.
The card is a Kingston Micro SDHC Class 4 32GB.

The weird thing is that it works in my HTC One M8s and in a Samsung Galaxy Grand Prime and on the PC too.
Even weirder is the fact that the card from my HTC One M8s which is a Kingston Micro SDHC Class 10 32GB works in the A3 .
Any suggestions, or should I just return it ?

 

[angstymeierlink]

It could be that the sd card is defective, or it could be that the phones sd card slot is being ****ty. If the card works in other phones and the phone can take other sd cards I would do either of 2 things. Return the card is the easiest, and hope the next one likes your phone, or go out and buy a small can of something call de-oxit, an electricians best friend. Get the red tip can and spray a pinch in the slot and let dry. Its best to wipe the contacts a bit but in a phone its so small you probably can't get to it. Anyways do that and even spray the contacts on the actual card if you want. If that doesn't fix it then your phones sd slot might be crapping out. My phones sd card slot doesn't work after I... injured the phone. It happens

 

[Victor2222]

Hello, it was me who made the post. Made an account to be able to communicate easier

 

[Victor2222]

I think I will return it tomorrow, it is late night where I live . Thank you for your de-oxit suggestion, maybe I will try it too in the future.