1.Insert the TF card (4G, 8G or 16G) in the Card Reader. 2.Format the TF card in the following way, select FAT32 in File system, then start format 3.After format the TF card, c opy the firmware FLASH.bin and m2LD.bin into the formatted TF Card 4.Install the SD card into QminiMP and put in the battery. 5.Then press the two keys in the left side and the power key to start the updating. When the scroll bar moves to 100%, then take out the SD card and power on the instrument.