1. Connect the Phone to the Computer using the Data Transfer mode. The mode where you can access the Memory Card as a Removable Drive mode.


2. Make sure that Hidden Files and Folders are visible. If they are not, heres how you can enable this option.

Open My Computer and Navigate to
Tools > Folder Options > View > Show hidden files and folders
Check that option and click on apply.



3. In my computer Navigate to your Memory card drive. In the Memory Card, there will be a Hidden folder called Private. Inside that, there will be many folders named with differend numbers and letters. One of these folders contains all the themes inside a folder names import. On 3250, the theme folder is 10207114. Maybe it may be the same folder on the other phons also, if this is not the folder, just search for "Import" and Navigate to that folder.
My Computer > Removable Disk (the memory card) > Private (it's a hidden folder) > 10207114 > Import



4. Inside the Import folder, you will find various folders with names like dc60815d47351ce2. Each of there folder corresponds to one theme.

5. Open each folder and you'll see in the contents 4 files: a settings file, a .mbm file, a .mif file and a .skn file. The 4 files have in their title the theme name.

6. Find the theme you want to delete, and delete the Folder containing the theme.

7. Delete all the themes you want to delete, Eject your Drive .

you can install themes here from zedge even if they show to u that they are expired.
Its a simple method just change back your mobiles date a year before(i.e to 2006 or 2005) and then install the theme of your choice and after installing you can again change back the date to the current.
Hope it solve your problem.

Take Care.
M.S Rabab.

thank you!! thank you!! thank you sooooo much really a big help... was able to delete some of my unwanted themes but not all coz some of my themes have the same file name "themepackage" so i dint want to risk deleting themes that i want since i still have this problem of reinstalling themes that i already deleted... by the way do you use pc suit to install themes?

i tried changing my dates like what friendofevil told me to but it dint work for me.... well maybe i did it wrong again ... i chanced my date to 2007 but in the process of installing the theme my phone told me that i had an incorrect date and something about the certificate so i place the date back to 2008 but like the rest of my deleted themes it wont reinstall again ...

but in the other hand i'm so happy and thankful to you sansierro for not giving up on me and for angeliclucero for teaching me how to go through step by step... have a good day!

sheila

well, i've downloaded 50+ themes already in my computer, however, i only installed 30+ themes.. but i used a memory card reader instead of connecting my unit on the computer itself.. for using a card reader, i was able to see, edit/modify, and delete ALL the files stored in my microSD, including those so-called "unseen" files.. you see, i suggest it would be better for you to use a card reader and you'll understand and see what i mean..

thanks a lot sherwinlance.... but unfortunately my N77 got lost.... not sure if someone stole it from my bag or i dropped it...