Recovery: Generally speaking, we refer to a mode on the machine, in which some operations such as system recovery (brushing) and backup can be performed. Translation into Chinese generally refers to "recovery mode". Similar to the Ghost recovery system on a computer. Each machine enters the recovery mode in a different way. Please see the corresponding tutorial post for details.

What needs to be added here is that the recovery after RUU brushing is called the official recovery mode. In this mode, because the signature verification fails, we can't brush in the custom ROM. If you want to brush the machine, you must ensure that your recovery has been brushed as unofficial recovery (such as RA and clockwork), so that you can brush the custom ROM at will. (Moto's machine is a bit different, but it also needs to enter unofficial recovery. )

Generally speaking, it is an engineering interface of the brush machine. If you have installed the system, you may know the dos interface or winPE. Installing Recovery is equivalent to installing a dos interface for the system. In the recovery interface, you can choose to install system, clear data, ghost backup system, restore system, etc. Brush recovery and brush rom do not conflict.

A more detailed description of the problem will help netizens understand your troubles and help you solve the problem more accurately. Thank you for supporting Xiaomi mobile phone!