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Firmware corrupt ready 2 download - cp1525nw

Microsoft Windows 10 (64-bit)

My laser jet CP1525nw printer displayed the message  "Firmware corrupt ready 2 download".  No response from any key presses.   Saw a post from a couple of years ago for someone with the same problem,  They were told that there are no resets that will help.  You need to order a formatter PCA and install it.   The person did and reported that the problem was fixed.

I tried the same thing.  Got a new formatter PCA and installed according to the hardware service manual.  Powered up and it appeared to be back working.  

THEN, I tried to set up the wireless.  Software setup program would not connect through the usb connection to my PC to allow wireless.  I have NO LIGHT on front panel wireless((i)) button.   Printed Config report.  Product Name = CP1525n. 

The formatter board was supposedly for either n or the nw.    But it looks like the printer thinks it is a CP1525n not nw.

Having installed the new formatter board is there something I need to do to get back to "nw"?

The service manual says, on pager 40, when you turn on power, NVRAM data will be written from the DC Controller PCA to the new formatter PCA.   The Config Report prints a different serial number than the one on the data plate.

Any help would be appreciated,  I am at  a stand still.

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