The Xiaomi “SE” lineup was introduced last year with the Xiaomi Mi 8SE. This lineup is a cheaper model of its flagship series and the company also released a cheap version of the Xiaomi Mi 9 flagship series which is the Xiaomi Mi 9SE. Although there are reports that the next flagship series will no have an SE model.
The Xiaomi Mi 9SE comes pre-installed with MIUI 10 (based on Android 9 Pie) while the Xiaomi Mi 8SE comes pre-installed with MIUI 9 (based on Android 8.1) although it has since been updated to MIUI 10 stable version based on Android 9 Pie. According to XDA developers, the Android 9 Pie kernel source code for these two phones has been released. The Xiaomi Mi 9 SE is codenamed “grus” and Xiaomi Mi 8 is “sirius”.
Despite the delay in releasing the source code Xiaomi Mi Tab 4 kernel last year, Xiaomi has recently become very diligent in opening up the kernel source code. It is quite interesting that the Kernel Source Code for the Xiaomi Mi 9 SE is already available considering that it was released just over a week ago. The source codes for both smartphones can be found HERE (GitHub).