2. Take out 1st screw on the Keypad

.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..

18. Take out the backup battery connector..

Original Power Adapter for Symbol MC3190-GPart Number: 50-14000-148RModel: HP-O204D43Inp..