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This tutorial is very easy and can be applied to other Symbian 2nd apps too, such as UCWEB-sis. 1. Rename the Opera Mini folder via xplore. Just replace the last character. In my example; OperaMini => OperaMin5
http://h-zone.co.cc/wp-content/uploads/2011/03/Screenshot0104.png
2. Rename also the other 4 files that has OperaMini in name into OperaMin5. Just see my screenshot.
http://h-zone.co.cc/wp-content/uploads/2011/03/Screenshot0105.png
3. Next is, using Zntxhan, open the OperaMin5.app via Listway. It will took long before the .app opens, just be patient. Then search for the term “OperaMini”.

4. Then edit the text OperaMini to OperaMin5. Just like what we did before. Do it on all OperaMini term you can find; via find Next or key 5 in zntxhan. It is three actually on OM. After edit, save.

6. Then edit the UID of both aif and app file via ProUID. We need to change its UID now, say were gonna use 0x2002ee61