Recovery is a micro-system, which can erase all partitions of the mobile phone, that is, we often say that the computer swipes the card in recovery mode, which is similar to the installation of computer Ghost;
Every mobile phone comes with its own recycling, but it can only be swiped into the brush package signed by the manufacturer; So we need to brush in the third-party recovery, bypass the official signature, and brush in the resource-rich third-party rom package.
To get this third-party recovery, you must first ROOT the system, that is, get the system modification permission. Generally, recovery can be swiped after S-OFF, because most of them are swiped into the third-party ROM with recovery, and it is impossible to swipe into the third-party ROM in the unlocked state. It is of little significance to recover at this time.