Hello, I bring up this old thread instead of opening a new one.
I have a mi4c in this situation:
- LOS 14.1 (Nougat 7.1.2) recently downgroaded via TWRP from AICP (Oreo 8.1)
- TWRP 3.1.1.0 (support both Lollipop and Nougat bootloader i think)
- firmware TS_libra_miui_8510
- locked bootloader...