Samsung GX-10 - Adjusting the Viewfinder Dioptre

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Ⅲ.ADJUSTMENT
5) How to upgrade the firmware after changing the Main board
1. Turn off the camera.
2. Download the firmware and save it on an SD card.
3. Insert the SD card and do not close the memory card slot cover.
4. Turn on the camera.
Use the AC adapter or fully charged battery.