Optoma ML1500 - Manual (Page 18)

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Software updates can be obtained from the Computer1
1. On your computer, create a folder named "upgrade".
2. Download the latest firmware from www1optoma1com and save it in the "upgrade" folder.
3. Copy the "upgrade" folder to the root folder of the SD card.
41 Insert the SD card into the SD card slot of the projector and then press the Power button1
51 Follow the steps below1
1. Wait to Complete 2. Upgrade may take a
while to complete