Hello, first advice is to download cpu-z from playstore and see if your bootloader says locked. Because i think your china stable rom is based on the developer 6.1.14, you must be sure of that before you do something, and sorry i dont have answer for that, i only know that the stable china...
This is a help for those like me who had questions about bootloader in mi4c.
In my case i bought it in gearbest, it came with that strange version of miui 77.0.4.0, every phone that brings that strange version have unlocked bootloader, just install the developer rom 6.1.7 in en.miui.com, PLEASE...
I bought my mi4c from gearbest also, and came with 77.0.4.0 miui rom, i updated him to china stable 7.0.16.0
Anyone can tell me if this version locks the bootloader? Or is just the developer rom? If i change the rom to the developer 6.1.7 i can install twrp and flash the xiaomi.eu 6.1.14 without...
Eu comprei o meu mi4c na gearbest, e vinha com uma versão multilang 77.0.4.0, mas consumia bateria a potes, depois instalei a stable chinesa e o consumo diminuiu mas nao muito, consome em media em navegaçao 4G de 5% a cada 15 minutos.