Today got a SD Card blank or unsupported file system message . Tried plugging it into PC using USB cord and a SD Card reader and it shows that it is empty and has no files, card will not format in phone. Broke out my old Droid that's laying around and put the SD Card from that into my Droid X, the phone recognizes the card. Only problem is it wasn't letting me view my photos from the old card in the gallery but if I use the file browser they are there. With the photos from the old card already on my computer I formatted the card in the phone. My question is what would cause this error? The phone was purchased about 6 weeks ago. Had the phone 2 weeks or so and I rooted it using Z4root and Koush's bootstrap. Was using Drew Garens rom, the OTA update was released and I decided to flash the phone back to factory settings using RSD Lite and the SBF file. Had a few error codes but finding a different SBF file I was successful in getting the phone back to stock and pulling the newest OTA. After getting the phone setback up I put Z4root back on and rooted the phone and added Koush's bootstrap, rooted the phone but made no changes to any files. Could any of this damaged the SD Card? If so am I risking damaging the one I swiped from my Droid? To be safe I used the unroot option on Z4root and removed the bootstrap, if I have to take it back to Verizon will they be able to tell I modded the phone? This post is long winded and most likely riddled with typos but any help would be appreciated. Thanks in advance.