I have 2 sd cards with same manufacturers(SanDisk), my 2 gb is a standard sd card and my new 8 gb is a SDHC I. My phone is Samsung Galaxy J1(SM-J111F) Ace Neo after inserting the 2 gb sd card a week later it doesn't detect it anymore. I cleaned it same with the sd slot but doesn't work. Now I inserted my 8 gb and it is being detected but I am worried it will happen to it like my previous sd card. How can I assure it won't happen again and I will no longer waste money and time so does anybody anymore?