What features will be lost if the bootloader is unlocked in a REDMI device? There are many people people who want to unlock there Redmi devices,but they have doubts and query about few things which are most likely. What if i loose my device warranty? Will i get in any trouble with unlock bootloader? Am i gonna loose features after unlocking my device bootloader? What should i do after unlocking bootloader? Will my data going to be lost? There are many more questions and doubt are there apart from mentions above examples but too keep it simple from my past experience of rooting and using custom roms and developing kernel and custom roms myself,you will get your answer here :) First of all yes if you got a redmi devices and you are thing about unlocking boot-loader your device will get format for the first time so make sure you make a back up first. And if you gonna stay in your miui stock roms you may loose some of the features like face-lock,some camera features as well some time