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WIC Reset Program and Chipless Firmware

WF-3640

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About WF-3640

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  1. WF-3640
    I ran into the same exact problem as the in the begining on this thread. Same Black screen with white letters ROM IS NOT WRITABLE.
  2. WF-3640
    I am having the same problem here I bought a key yesterday as the software version 5.57 said it supported firmware downgrade for my printer model wf-3640 with the purchase of a firmware key. Has this issue been fixed?
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