In view of the fact that the firmware for Russia lags behind the foreign posted two versions of the firmware, SER - official for Russia, BTU - official for UK (United Kingdom). The latest version of recently released it for the region BTU, so someone who wants to get the most recent update makes these versions who need official firmware for Russia puts SER.
Added new firmware for the UK-based 4.1.1 -

I9300XXDLI2_I9300OXADLI2_I9300XXDLI2_BTU.
! WARNING! It's still not an official release. Firmware collected from leak OTA update 4.1.1. Flash is at your own risk

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