upgraded to catalina and my serial number went missing

Has anyone experienced the serial number gone missing after an upgrade. I have my old serial number because It was in use in my icloud devices but now its missing from my MacBook pro. Any ideas how to fix this issue I have installed catalina 6 times and still no serial number



Posted on Jul 23, 2020 11:48 PM

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12 replies

Jul 24, 2020 10:12 AM in response to Vin_E_Limitless

Your Mac product description line is truncated too. Was the motherboard replaced? Does the following file exist (it should)?


$HOME/Library/Preferences/com.apple.SystemProfiler.plist


Launch the Terminal application, and copy/paste the following into the command-line, followed by a return:


ioreg -l | iconv -f ISO-8859-1 | tr -d '\"' | awk '/IOPlatformSerialNumber/ {print $4}'


If it returns a serial number, acknowledge that it did, but do not post your serial number here.

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upgraded to catalina and my serial number went missing

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