Xperia 1 And Xperia 5 Get March 2020 Security Patch Firmware Updates Sony is updating its two current flagships with a new firmware update that adds the 1 March 2020 Android security patches. The Sony Xperia 1 moves from build number 55.1.A.3.49 to version 55.1.A.3.107. March 12, 2020 Published in Technology Read more...