BIG TREE TECH Pad7 - Core Board Replacement Procedure; Replacing CB1 with CM4

Shenzhen Big Tree Technology Co., Ltd.
BIGTREETECH
8 / 17
To Replace CB1 with CM4
1. Disconnect the power, and place the Pad7 backside up on the table;
2. Remove the two M2.5 x 3 flat head countersunk screws with a 1.5 mm hex
screwdriver counterclockwise.
Then slide the bottom cover up with your fingers.
3. Remove the four M2.5 x 10 socket head cap screws with a 2.0 mm hex
screwdriver counterclockwise.
Then remove the heatsink.