I have a problem with my Nokia 5300 because the phone theme was corrupted and I cant changed or restore it due to my other problems: my phone memory is full so i cant change theme which is very much larger memory and i cant also restore the memory because my phone memory fills through the messages which is already empty but still contains Kb&Mb, what will i do?
The phone memory is approximately 10 kb and the messages/drafts are empty but still contains almost 2mb.
Thanks for your post and welcome back to the Nokia forum.
We are really sorry for this inconvenience.
In order to fix this issue, I would suggest you to perform a hard reset. First of all, back up your data using Nokia Suite (Tools > Back up). Once your data is fully backed up, type *#7370# on the keypad. Default lock code is 12345.
The hard reset will dellete all your personal information, that's why a back up is very important.
Hope this helps and feel free to post any other questions you may have.