im using my 16gb memory card as to store all my apps on etc.. as my internal memory is too full so i chamged my sd card to default storage, but now as i have been using it it says storage space is getting low... but when i check it i therefore have 14gb left in total space i can use but it wont let me ... that's heaps of space I can use, I've tried moving apparently from sd to phone but internal is too full so I can't... I don't see how I need to do that anyway as I've only used up 2gb on sd and yet have 14gb I can use but why is it saying low on storage space on my sd? And how can I go by using the other 14gb ?
This may be expected, depending on what phone you are using. The original standard of SD card readers had a 2GB limit on them. These readers could read cards that had more space, but only had enough memory registers to read the first 2GB of them. Sometimes a firmware update can increase this from 2GB to 4GB, but it's extremely rare.
From the wikipedia article on the SD standard:
Capacity SDSC (SD): 1 MB to 2 GB, some 4 GB available. SDHC: >2 GBs to 32 GB SDXC: >32 GB to 2 TB, some 32 GB available.