Brother PT-P950NW User Manual page 151

How to Update P-touch Software
c
Click the [Machine update] icon.
d
Select the [Printer], ensure that [The machine is connected correctly.] appears, and then click [OK].
e
Select the [Language], select the check box next to the firmware you want to update to, and then click
[Transfer].
Important
Do not turn off the P-touch Label Printer or disconnect the cable during data transfer.
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