Na350 ibtr software upgrade method, 1. Delete all files inside the usb devise 2. Copy the “ ru5350-t51_nonoe_v05.03.5_pp.Lcs ” software files and some mp3 songs(more than 4 songs) into the usb device 3. Insert usb devise into unit 4. Unit panel lcd show “update?” 5. Press volume key to confirm sw up...
