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"Device is secure. Erase to unsecure?" error message comes up when I try to program MM9Z1J638 with P&E's Multilink Universal. How can I reprogram MM9Z1638?

Question asked by kadir uzun on Jun 22, 2016
Latest reply on Dec 3, 2017 by tuo zhou

Hello all,

 

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.

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