I have a PCB board with MM9Z1638 on it. I was able to program it previously but something strange occured and I am no longer able to program it. Each time "it says device is secure. erase to unsecure?" When I click on yes, either this message pops up or a page with diffferent frequency options pops up. I really do not know how to fix. I looked for it on web pages, but no single solution that work is explained in details so I couldn't understand or apply existing solutions on web.
If I can receive your help, I will be glad.
Thanks in advance.