Open the back cover.
Disconnect the battery connector.
We strongly recommend disconnecting the connector to avoid a possible short circuit during disassembly.
Using a screwdriver (Phillips 1.5 mm PH000), unscrew 4 bolts securing the battery and unscrew 2 bolts in the PCB.
Using a screwdriver (Phillips 1.5 mm PH000), unscrew 2 bolts and remove the assembly with abuzzer (speaker) and headphone jack/socket.