Unlike modern tools that rely purely on USB drivers, Omnius operated via a connected to a remote server.

: It allows for the permanent removal of SIM locks.

It seems you're looking for software for Sony Ericsson phones.

Later in its lifecycle, Omnius released "V3" (sometimes referred to as Omnius Android). This shifted focus heavily toward the Sony Xperia Android lineup, offering features like:

If you're looking to still use it:

Omnius allowed users to perform operations that standard PC Suite software (like Sony Ericsson PC Companion) could not do.

Omnius is remembered fondly in the modding community for democratizing Sony Ericsson servicing. Before Omnius, unlocking a K800i or repairing a GDFS error required expensive hardware boxes (like SETool). Omnius made it accessible to everyday users through a simple pay-per-use software client.

As of the late 2010s and into the 2020s, the popularity of Omnius declined significantly.

Do you need help finding the or a specific step-by-step guide for a particular Sony Ericsson model?