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Sharp Electronics (UK) Ltd., Technical Services Group

(c)  Finally, the Tera Term sends the file “pj_jffs_m20x.bwh”. (approx.

3,000,000 Bytes transferred)

(15)  If the firmware is successfully updated, the LAMP indicator lights up in red

and then the “OK” dialog box appears. And then click “OK”.
Note: There is a possibility that the data communication is failed if the
projector does not change to the above status even though past two minutes
or more. The count number will be counted up to 24. If the count number is
over 100, the data communication is failed. If so, turn the projector off and
close the Tera Term Pro, and then take the steps again from 3-1.

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Sharp Electronics (UK) Ltd., Technical Services Group

The update is completed successfully.

(16) Disconnect USB cable and power cord.

3-3.  Writing the firmware - In case of other versions

Please refer to 3-1(3) for Version code.

(1) Start the Tera Term Pro from Windows “Start” button.

If the “Tera Term:Error” dialog box appear, click ”OK”, and then proceed in the next
step.

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Sharp Electronics (UK) Ltd., Technical Services Group

(2) From the menu, select the “Control” and then “Macro”.

(3)  The “MACRO Open macro” dialog box will appear. Select 

“fwp_m20x_new.ttl”

,

and then click “Open”.

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Sharp Electronics (UK) Ltd., Technical Services Group

(4)  The input box appears in the dialog box. Enter the COM port number you wrote

down in the previous step. And then click “OK”.

(5)  It takes about 40 minutes to transfer data (It varies depending on the PC

performance). The progress of data transfer is displayed in the dialog box and
the LAMP indicator blinks in green during this period. After transferring data, it
takes about one more minutes to finally update the firmware. Wait until the
update is completely finished.