Hi Xiaomi users, I have recently updated my Mi4C to the Nougat update 7.3.9 from Xiaomi.eu. Today I was about to update to the 7.3.16 version. And surprisingly after selecting the update package from settings update, it would not load to process the update. After some research I thought it could be that I lost the TWRP; then after loading to fastboot, which is the only possible thing at this stage, I found out that the bootloader was locked (last year I had officially ulocked it). Now I have requested to unlock again; but what could be the possible reason ? And is there anything else I can do to proceed with the update to 7.3.16 from my current 7.3.9 ?