Take the IO board assembly, place the battery face of the IO board assembly down, as shown in Figure 3, align the positioning buckle below the lower shell and install it on the lower shell. The installation is completed as shown in Figure 4.
Take the IO board assembly, the IO board assembly battery face down, Figure 3 aligned to the lower shell under the positioning buckle mounted to the lower shell, installation completed in Figure 4.
Take the IO board assembly and put the battery side of the IO board assembly downward. Align the positioning snap under the lower shell as shown in Fig. 3 and install it on the lower shell. The installation is completed as shown in Fig. 4.<br>