Depending on your data plan and performance needs, you have two primary options:
If you get a “Certificate error” during installation, change the date on your E63 back to January 1, 2010. This bypasses expired Symbian certificates. After installation, you can set the date back to automatic. opera for nokia e63
Generally considered the most stable native Symbian version for the E63. Depending on your data plan and performance needs,
directly from your phone's built-in browser to see if the automated downloader still supports your device. Why use Opera on an E63? Data Savings Generally considered the most stable native Symbian version
Do not try to download the latest version of Opera Mini (which is designed for Android/iOS). It will not work. You need to look for legacy versions. The most stable versions for the Nokia E63 are usually found in the Opera Mini 4.x series (specifically 4.4 or 4.5) or the Opera Mini 6.x series (specifically 6.5 or 7.0).
: Access a repository that hosts legacy Symbian apps. Look for the file in format, though some versions are also available as Java (.jar/.jad) Transfer to Phone : Save the file to your phone's memory or an SD card. Run Installation