Readme for QA-550 WAV Player Firmware£º 2009-08-01 01 Version Firmware£¨Updata01.qls) Amended a support maximum songs files's Bug. 2009-09-05 02 Version Firmware (Updata02.qls) £º 1.Update support 16GB SD/SDHS Card 2.Update support maximum 55 first lever folder, maximum 550 songs on one card, 3.When you choose folder, Then you input number only this folder, for example: you input "55" for choose playing the current folder the 55th song. 2009-09-20 03 Version Firmware (Updata03.qls) This firmware add input number for choose folder number, if press "A" in remote control, then you input number within 5 seconds, this number for choose folder, You input numbers for choose files in 5 seconds later. 2009-10-10 04 Version Firmware (Updata04.qls) To improve the support Transcend Class6 8G SDHC 2009-12-01 05 Version Firmware (Updata05.qls) Fixed some minor issues. 2010-03-03 06 Version Firmare (Updata064.qls) change the sort order in alphabetical or numeric order. For example: 01xxx.wav,02xxx.wav,05xxx.wav,12xxx.wav,13xxx.wav,a0xxx.wav,a3xxx.wav,b1xxx.wav,z5xxx.wav... How to firmware update 1.Please re-format 1G/2G SD card for FAT32. 2.Download update files from our website http://www.qlshifi.com/en/Download.htm and save them on your local hard disk. Decompress such files, extract the following *.qls file 3.Please will update files (*.qls file) save to the SD card root directory . Note that file name can't be amended. (only can have this a *.qls file in your SD card root directory, Please delete it If have other *.qls file) 4. Plug SD card, press on update key SW1, and turn on the power switch. 5. Then LCD shows "update start ...", Then release of SW1 and the player will automatically find update files. If you don't insert the card or it can't find update files, LCD will show "NO CARD" or "no file". 6. After finish the update, LCD shows "update ok".