After getting the Galaxy S4, I got myself the SanDisk 32gb Memory card (for Android phones)

Started using and find out that the phone occasionally drops the card and I was not able to take photos and store on the SD card..the card date also resets to 01/01/1970 (even though it was formatted in the phone on a date of 2013)

After searching online and finding that SanDisk had issues with their cards..I gave up and used my Samsung 8GB Class 2 memory card from my previous phone and abandon the SanDisk into my table

I formatted (via the phone) and had no issues with this card..however..8gb wasn't sufficient for me as I require to snap photos/videos for my job (I'm too lazy to carry a digicam as it's bulky)

I decided to get a Kingston 16Gb Class 10 memory card for the phone.

The night I got it..I formatted the card (via the phone as usual) after slotting in..and copied over all my photos, it all went well.

The next morning I wake up to see a notice of "SD Card unexpectedly remove" and I wasn't able to access the card since the card "wasn't there" even though physically in the slot

I removed and re-slotted the card and the phone doesn't detect..

I removed the Kingston, and slotted in the Samsung and it was okay

I went to office to try access the card via laptop and the office printer with memory card reader..the card can't be read..

So I sent back to the shop and was lucky to get a 1-to-1 exchange of the memory card..

Immediately I slot in the new card and formatted it via the phone..that same day..at night I tried taking a photo..guess what?

"Unable to write file in SD Card. Storage Switched to Device Storage"

Fine..I restarted the phone and it was okay..this morning I took another photo and the same error popped up..

I restarted the phone, it worked awhile and then it failed again..

I can still access the card and view previously taken photos..but I'm not able to copy/move files(photos/documents/mp3) from the phone to the card