@k.nacke said in Unlock Bootloader – How To Unlock?: A good strategy is to use RSA to download the firmware file, and save that file. The path is shown in the upper right corner of the UI while the file is downloaded. Either you are fast enough and you can copy the .zip file, or you need to zip the unzip directory yourself. Ok, I've downloaded files, now I have: RomFiles/TB_X306F_S230940_240402_BMP.zip - I have to recompress directory myself. I guess it is for space saving purposes right now, right? and ToolFiles/MTK_Flash_tool_v5.1920.00.001_V2.zip Are these two files sufficient for recovery?