I have 2 phone S3 and Note N7000. I have using sandisk 16Gb sd card with no problem with my Note and the recently bought 32Gb sd card on s3 is draining the battery and also prompting , and mount/unmount. I formatted the black card, and still same problem. I switch the card and the S3 is good with the old sandisk 16Gb and the note is showing the same sign as the S3. Confirm it has nothing to do with phone or transfer media through PC or phone. Its something defective on that 32 Gb micro sd card.
Sandisk just need to come clean becuase it will be out in the open real quick with S4 and new phone coming out. At least sandisk need to come out and deny or come clean on it and not keeping quiet about it.
