Tulong ako konti sa mga nagkakaproblema sa n73, I'm also an N73 user, N73 and N73ME medyo nagkakaproblema ako minsan sa ordinary N73 ko ngayun, bumabagal but common na to eh so eto ginagawa ko.
1. If ever the phone slows down or usually lumalabas ung memory full, I always check the following:
* Number and size of images and videos on memory card
* Number of music in my music player
Usually, if you have over 80 pics in your memory card, your phone will start to slow down, because it usually creates new thumbnails and this consumes memory. If you have python installed, install g-force which would clean all garbage on your phone, install as well rompatcher to disable the creation of thumbnails.
2. If you still get that error, buy a new PC cable and update your phone or re-update your phone. Make sure you are not doing anything on the pc when updating, any jitters of data affects flashing of the phone especially using the cables we use on N73.
Why this solution? My brother's N73ME usually goes like this because of his around 250 pics + 40 or so vids and about 200 songs. yeah thats a lot. Removed the pics and vids then it still appeared. After flashing it again from pc, it only appeared again after 6 or so months. (dami nanaman kasi pics sa phone, di uso sa kanya backup sa pc eh.)
3. I've noticed that installing the following helps:
* Handy Taskman
* Python + G-force + rompatcher
* Free-iSMS instead of the usual messaging service
* Resco Photo Viewer for pictures
* Smart Movie for videos
* Speedy Go for pre-fetching menus
* Free Full Screen Wallpaper for full screen wallpaper.
It also helps to install themes lower than 700kb, the smaller they are, the faster they would be.
Anything going to 3m will be slow as heck.