Open the back cover.
Screwdriver Phillips #000
Disassembly of the mobile device Asus ZenFone 4 A450CG with each step description and the required set of tools.
Using a screwdriver (Phillips 1.5 mm PH000), unscrew 1 bolt in the lower part with speaker (buzzer).
Disconnect the SIM card flexible flat cable connectors and remove the cable with metal frame.