After patching the CID on the Samsung eMMC to another vendor, the "Write CID" button will be disable by reason(to avoid user mistake) .

To re-enable Write CID button, press Ctrl +Shift+F button in your keyboard,

https://www.youtube.com/watch?v=9qOV96AM4D0
8 months later

egylover22 Change cid only available for samsung chip. It depend on situation on your work. Ex, when you for some reason wrong change cid to Hynix, the CID button will disable. Then you need to restore to original cid by did just like in video above.

    2 years later

    NizamTelecom FFU only limited to support some samsung chip, if the button is disable, means ffu not support for such ic.

      a month later

      kmfn10012m-b214 FFU file Urgent Needed

      a month later
      13 days later
      2 months later

      KMQN10013M-B318 ffu file need
      ffu file is not enough ...

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