GE 400 Series Owner's Manual page 11

Settings
UPD (uPd) (on some models or with U+
Connect module)
service about your oven. To access the information,
enter the Settings menu as outlined above and scroll
thru the options until "uPd" is displayed, then press
Start. A set of four characters and numbers will display.
Scroll down to see the next set of four characters and
numbers and then scroll down again to see the final set
of four characters and numbers. You can also scroll up
to review the previous sets. Press Cancel to exit the
Settings menu.
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MAC ID (id) (on some models or with U+
Connect module)
some Wi-Fi systems. To access the information, enter
the Settings menu as outlined above and scroll thru the
options until "id" is displayed, then press Start. A set of
four characters and numbers will display. Scroll down to
see the next set of four characters and numbers and then
scroll down again to see the final set of four characters
and numbers. You can also scroll up to review the
previous sets. Press Cancel to exit the Settings menu.
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