Samsung GX-20 Service Manual page 239

4. Firmware Upgrade Procedure After Main Board Replacement
Caution
If the battery goes flat during the upgrade, the camera will be damaged.
Two types of power modes therefore need to be used for safety purposes.
1. Download the firmware to replace the main
board and save it into the ROOT in the SD
memory card (an MMC card can't be used.).
Check that the name of the firmware is
"KB454B.BIN".
2. Insert a fully charged battery into the camera (AC adapter connection is recommended for safety.).
3. Insert an SD card (firmware for replacing the main board) into the camera.
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. FIRMWARE
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