For Firmware update for people like me who have a DSO 201 with white buttons, that wont except any Benf programs, to keep it working use this single .HEX file, drag it into you virtual drive, in my case drive e:\ press Minus and on key to go to firmware copy mode, there is a translate button to change from Chinese dialog, scroll down to bottom of page and download latest .zip file
best wishes Fred Nr London, clip on link below.