Using the key tool, open the SIM card tray and remove it.
Do not push too hard this may cause damage.
Using a screwdriver (Phillips 1.5 mm PH000), unscrew 1 bolt and remove the bracket holds the battery and display connectors.
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 3 bolts and remove the bracket holding the connectors.
Disconnect the connector of the coaxial cable on the lower PCB and the connector of the inter-board cable and remove the board.
The inter-board cable locates on the inside, so you need to separate it with care.
Turn over PCB, disconnect the connector of the coaxial cable from the inside and remove the board.
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