Optoma H31 Service Manual page 45

7. Please mark both "Digital" and "Trans" in the "Read Item" in red circle.
(Note 1 : If EDID informations can't match with "Barcode" , please cancel "Trans" item and
click "Read" button again.)
8.Then click the "Read" button.
(Note 2 : Exit the program and restart your system when needs to burn EDID again.)
9.Inspect if the week and the last digits of the Serial number are correct or not.
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Coretronic Corporation
6-8 H31