Shenzhen Big Tree Technology Co., Ltd.
BIGTREETECH
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6. Cover the heatsink back, and use a 2.0mm hex screwdriver clockwise to tighten the
four M2.5 x 10 socket head cap screws.
7. Please refer to the figure below, and slide the button of USB-Choose and CS-
Choose to CM4;
8. Cover back the bottom cover and fix it with the M2.5 x 3 flat head countersunk
screws.