I have the ZTE Merit.. and as of two months ago it started doing the whole low storage space when i have barely anything on it. I can barely do anything on it as well. When you go to about phone and then system update, then storage card update. Under that it says copy update package to storage card for system update.. then when you click it, it says please copy update package to image directory on storage card. Since i seen this thats when all the low space started and i figured the update must have downloaded somewhere using up all my space I have no idea how to update.. It's currently at 2.3.5 is this the current ? I also was looking for rooting to help with my phone if i can't get the update done.