A community of enthusiasts has archived thousands of old .xap files (Windows Phone app packages). You can attempt to find the Opera Mini .xap file (version 8.0 or 8.1) from sites like:
When users successfully installed the browser, the experience was a mixed bag that highlighted the strengths and weaknesses of the Windows Phone platform. On one hand, the interface was clean and responsive, adhering to the minimalistic design language of the era. The data savings worked as advertised, allowing users to stretch their data plans further than Internet Explorer ever could. On the other hand, the version of Opera Mini available for WP8 was often considered a "port" or a simplified iteration compared to its Android counterpart. It sometimes lacked the smooth rendering engine of the native IE browser, leading to occasional formatting issues on complex websites. Yet, for the faithful Windows Phone community, these were acceptable trade-offs for the freedom of choosing a third-party browser. opera mini for windows phone 8 download
If that fails, use a PC to search the Windows Phone Store web listing (store.live.com) while signed into the same Microsoft account; you may be able to push install to your phone from the web store. A community of enthusiasts has archived thousands of old
