19 Backup battery can be taken out now

.9. Take out 2 screws which near the Sim card connector..

.8. Seperated the Keypad successfully..

.7. Pull and take out the keypad..

.6. Take 2nd screw inside and near the battery connector..

.5. Take 1st screw inside and near the battery connector..

23. Put down to open the connector (brown in color)..

31. Take out Keypad PCB Connector on the motherboard..