I am also a victim… I never believed SanDisk can fail so when my first 64gb micro sd card failed on my galaxy note 2 last year I blamed it on samsung but a 2nd one just failed 2 days ago…
Apparently, when they fail u neither can copy to it or delete files already in it nor format it… I hv tried formatting it with all possible procedures n it cannot be formatted. …This is a huge let down on SanDisk. … I hv three 16gb SanDisk I bought like 3 to 4 years back n also a 32gb version n they have never failed me but in less than a year, two 64gb ultra SanDisk hv failed me…I am so much heartbroken and like u rightly said please no one should buy an ultra 64gb SanDisk cos it fails more when u get to the 40gb limit…I am presently using a third 64gb ultra SanDisk micro sd card on my galaxy note 10.1 n hv already accepted my faith that it may fail someday. … its time to move on to a new brand… am done with SanDisk for now…This is very very bad from u SanDisk. …
THE SANDISK MOBILE ULTRA 64GB MICRO SD CARD HAS FAILED ME TWICE & I CURRENTLY BLINDLY PURCHASED A THIRD ONE BEFORE THE SECOND ONE FAILED. … I ALREADY KNOW MY FAITH WITHOUT IT…PLEASE & PLEASE DONT BUY IT
