ViewSonic N4200w-1 VS10945-1M Service Manual page 29

(6) After loading the appcode.inf file, a file list is displayed that will be flashed (as shown in Figure 4).
(7) Click "Flash" when you are ready to flash the system.
(8) After FlashUpgrader shows "Waiting for target reset..." message, reset the system by clicking "Reset"
key ("SW1") as shown in Figure 5.
(9) When downloading completes, click "Finish" and power-cycle the system.
(10) Select "Factory Preset" under the "OSD Setup menu".
(11) Power Off and then Power On LCD TV again. Firmware update procedure completes.
ViewSonic Corporation
Figure 4
Figure 5
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Confidential - Do Not Copy N4200w-1