Please note that I am using a Nokia N86 8MP phone. This kind of phone is OS 9.1 but it might as well be an S60v3 phone. For Nokia touch devices or ^3 phones, just download and Google for TouchComic 1.91. TouchComic is a great program for Nokia touch phones but it's not very ideal for non-touch phones like we have.
First thing you need to install is X-Plore. This app is a file manager with a shit ton of features. It can read text files, it can unzip, it can unrar, and it can even play some video formats quite well. This app is not free but it is trialware. However, your trial does not end. The app just has a 3 second nag when started and ended. That's not a very irritating nag, but if you have money, please buy the product and support the author.
Now that you have X-Plore installed, all you need is to download a CBR or CBZ file. Once in your phone, fire up X-Plore and locate the CBR/CBZ file. Rename the CBZ file to zip and rename the CBR file to rar. Now, after that, X-Plore will be able to read the files inside the archives.
Just click on the picture file (JPG), X-Plore will display the picture. Now this is where X-Plore comes in very handy more than the built-in Nokia picture explorer - hot keys. Once the picture (the comic page) is displayed, you can zoom in the page to read the word balloons using the number 5 on your keypad. To zoom out just press 0. To go to the next page, just press 3.
Isn't this awesome. The cool thing about X-Plore is that it will also remember the folder that you were before after you exit the app. This makes it the best comic book reader for our Nokia Symbian phone.
