I'm currently trying to find it also because Samsung Tool Pro is showing a Product Code for my phone that is not my device. One thing I do know though, the Product Code is NOT in Settings -> About Device...
If anyone else runs into this issue you DON'T have to System Reset or Factory Reset your device! It's a real simple fix... just go to Galaxy Store (if you have Samsung Device) & download & install the Samsung Keyboard App or go to Google Playstore & install Google Gboard (or any other Keyboard...