when this hapenede to me ronny from exertec sent me this it worked for me
1.please find the PC to DSP black cable , before you connect dsp to pc, please pressing the green "ORIGIN/OK" button all the time, then connect the dsp to pc, means, give power to dsp, 5 seconds later, release your finger, means, don't press it. then you'll see "Start modes: Normal start and Emgentcy progr", please choose the "Emgentcy progr" to format the dsp controller. then adjust the correct parameters and try to use the dsp , see if it works well.
2.When it says "not enough memory to run file please delete some files", means , you have copied so many files to dsp controller, please remove some of the files that you don't use, you can remove from menu--advanced pro setup--file maintennce--delete file. then try to use the dsp , see if it works well.
3.If the above solutions can not solve your problem, please "reinstall the dsp program ZHBUSB"