I enabled encrypted bit stream with a key and programmed encrypted POF file with ekp file on max10. The program is running well on FPGA. I can not full erase any more the FPGA..

Hi Vicky,

Yes, I had JTAG Secure mode enabled. I did that after I had quartus.ini file placed under project folder. I was able to enable option for JTAG secure mode, in Convert Programming Files.

I guess problem started just after enabling JTAG Secure mode.

I use Quartus 18.1 lite with a license file for enabling encrypted bit stream..I was able to program and reprogram until I enabled JTAG secure mode.

I cant follow steps related to instantiating internal JTAG.. to disable JTAG secure mode.

Its a custom design board...I have two boards stuck with this situation. I can not program/configure anymore..

Highly appreciate your help on this to resurrect these boards :)

Thank you

Guna