Home / Firmware / SM-G990B2 / O2U
Galaxy S21 FE 5G
G990B2XXSEHYH1
O2UAndroid 15Released 8/5/2025Firmware details
Key identifiers and package metadata for this release.
G990B2XXSEHYH1G990B2OXMEHYH1 UNITED KINGDOMUNITED KINGDOMCSC code O2U2 carriers in 1 country
CSC stands for Consumer Software Customization (sometimes "Country Sales Code"). Samsung firmware ships with carrier- and region-specific configs; the networks listed below are what this CSC was built to support out of the box.
O2 (UK)23402NWIDNW00928O2 (UK)23410NWIDNW00928O2 (UK)23410NWIDNW00886O2 (UK)23410NWIDNW02107