Mitsubishi Electric AE-200A Instruction Book page 74

(8) A software update process starts.
Note: It takes about ten minutes to complete the update.
Note: Do not disconnect the LAN cable or turn off the power to the
AE-200/AE-50/EW-50 while the software is being updated.
(9) The AE-200/AE-50/EW-50 will reboot after the update is complete.
Check that the version that will appear on the screen is the same as
the version of the update file. Also check that the version displayed on
the login window of the AE-200/AE-50's LCD is also the same.
If the software update did not properly complete, update the software again. If the problem persists,
the AE-200/AE-50/EW-50 may be damaged. Consult your dealer.
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