well, to tell the truth, it is android tablet, the card is original, i need to download one large file of 20 gb in one file. As fat32 is not reading this file to download. I can use only exfat, ext3,4, or ntfs. So, formatting with different applications the micros sd card, inserting it in the device, it is said to be blank, so, it`s not being seen at all. it works of course in fat32, what is the deal, how can I decide that, not even this android application like paragon sees that. device has new android, of 4.4.2. so its not connected with that. Device is fully rooted. What do you think, as it is the global question, not mine only.