In the Open File dialog box, select the .img file, then click Open.
The upgrade file appears in the Select File box.
Press and hold the projector's [Input] and [Setup] keys,
then plug in the power code and turn on Main power switch.
The projector shifts the Firmware upgrade mode.
In the Firmware upgrade mode, [LAMP],[TEMP] and [FAN] LEDs are always
GREEN blinking. Click the start button.
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