Many technicians use a mix of official and specialized third-party tools depending on the specific task.
You must have the specific USB drivers (MTK, Qualcomm, or Samsung) installed so your PC recognizes the phone. Many technicians use a mix of official and
Mi Flash Unlock Tool (official bootloader unlocking). Many technicians use a mix of official and
Mi Flash Unlock Tool: What It Is & Why You Might Use It - Dr.Fone Many technicians use a mix of official and
Unlocking or flashing will erase all data on the device.