Solved "SD card is blank or has unsupported file system"
Hi jdraper2015,
Solved SD Card Blank
I was facing a similar problem in my samsung s3. I was using my phone on a trip to click photos and then suddenly this message started popping up. I was scarred that I would loose all my photos of not only this trip but also my past trips since I had never backed up my data. But l feel I was lucky to find an excellent step-by-step video tutorial which not only recovered my files but also fixed my SD Card.
Here these are the steps that worked for me
1> Inserted the sd card on a pc using an sd card reader
2> Used photorec utility to recover my pictures
3> Used testdisk utility to fix my corrupt sd card
4> Backuped SD Card in PC
4> Formated sd card in PC
5> Repaired SD card using chkdsk
6> Formated sd card again in phone
7> Copied the backed up folders into my sd card
The step-by-step video tutorial l found was over here:
https://www.howisolve.com/blank-sd-card-error-recovered-fixed/
The Download link for the utilities are :
TestDisk Download - CGSecurity