[Q] SD Card is blank or has unsupportable fielsystem

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http://forum.xda-developers.com – hi everyone, i have a Samsung Galaxy Note 1 (GT N-7000) on android 4.1.2 once a day it shuts down alone and when it restart i cannot access my SD card, it says "SD card is blank or has unsupportable filesystem", the only way is to format the card, i've done it but when i transfer something on the card it happens again. please i really need help, i can't stay on formatting my sd card every day, and thank you :) (HowTos)