ok so i have recently purcchased the above named tableet, and had a 128gb micro sd card laying around since i had wanted to try and us it for my phone but at the same time it did not seem practical as i have not figured out as to how to be able to effectively use my external storage, so i settled with a 32gb micro ssd card. anyways back to the topic at hand. i have reformatted the sd card into FAT32 via a windows 7 laptop through cmd (if you have any questions about how i did it since i did not use any 3rd party software, only the cmd itself fel free to ask.) but now that i have put it into my tablet i cannot read it. so, i have seen things about the read speed as i have perused the xda-developers site(which has been helpful but only to a small extent as it seems i am too poor to afford most of the devices that everyone else is using(even if i did have the money the devices i have gotten are well worth their money even for having been cheap tech.) so does read speed have anything to do with being able to have a higher capacity of sd card or even an external hard drive? if not what are other ways that i can increase the likelyhood of being able to read my 128gb sd card? or even my hard drive or my 2tb flash drive i just ordered?