Alright, let's make this easier if you put in your R4 ds WITHOUT microsd card and it says something other than "Could not find TF/SF Card "It's defective". If it does give you that error then its most likely a microsd issue.
Also, if you tried the SD Formatter tool and it didn't work or it didnt recover all your space its your READER's fault.
Another cause could be the fact that you just pull out the microsd without using the "Safely remove hardware"-
option on your lower right in Windows XP? If you just pull it out, that WILL cause your microsd card to corrupt.
Do not scratch/wet you microsd card ever...
Also, if you tried the SD Formatter tool and it didn't work or it didnt recover all your space its your READER's fault.
Another cause could be the fact that you just pull out the microsd without using the "Safely remove hardware"-
option on your lower right in Windows XP? If you just pull it out, that WILL cause your microsd card to corrupt.
Do not scratch/wet you microsd card ever...







