Panasonic PT-D7600U - Manual (Page 92)

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How to use network module (optional)
Firmware update page
(Only those personnel with expertise must execute firmware update.)
Enter file name and press the Upload
button, which starts transfer. It will
take some tens of seconds to finish
transfer. The time will depend on the
network situation. Enter the file name of the desired
firmware for updating.
Current version appears.
Transferred updating version is
displayed here.
Check the current version and the
updating version, and if they are
correct, press the Write button, which
starts updating. Do not turn off the
power supply during the updating
process.
When updating is complete, this message appears.