2, after the screw is removed, it can be slowly opened, children's early education machine.
3. After turning on the early childhood education machine, you can see that some parts fall off and need to be reinstalled.
4. The parts and battery must be reinstalled in the groove and the battery must be installed. You can use some glue so that they can be installed firmly.
5. After successful installation, you can reinstall the early education machine and tighten the screws.