Troubleshooting Guide (mech)
1277-1356 Rev 2
© Sony Mobile Communications AB – Company Internal
2(45)
CONTENTS
1 Problem Areas ................................................................................ 4
1.1 Power .................................................................................................... 4
1.1.1 Will not power on or will switch off randomly ........................................... 4
1.2 Keys ...................................................................................................... 5
1.2.1 Back/Home/Multi task Keys ........................................................................ 5
1.2.2 Camera Key .................................................................................................. 5
1.2.3 Volume Key .................................................................................................. 6
1.2.4 On/Off key .................................................................................................... 7
1.3 Touch Screen ....................................................................................... 9
1.3.1 Touch Screen malfunction .......................................................................... 9
1.4 Display ................................................................................................ 11
1.4.1 Graphics & Illumination ............................................................................ 11
1.5 LED/Illumination ................................................................................. 12
1.5.1 LED/Illumination ........................................................................................ 12
1.6 Speaker ............................................................................................... 14
1.6.1 Loudspeaker .............................................................................................. 14
1.7 Earspeaker .......................................................................................... 17
1.7.1 Earspeaker ................................................................................................. 17
1.8 Microphone ......................................................................................... 18
1.8.1 Microphone ................................................................................................ 18
1.8.2 Secondary Microphone ............................................................................. 20
1.9 Vibrator ............................................................................................... 21
1.9.1 Vibrator not generating alerts .................................................................. 21
1.10 Camera ................................................................................................ 22
1.10.1 Camera defects .......................................................................................... 22
1.11 Bluetooth and WLAN ......................................................................... 23
1.11.1 Bluetooth or WLAN connection failure .................................................... 23
1.12 GPS ..................................................................................................... 24
1.12.1 GPS malfunctions ...................................................................................... 24
1.13 Compass ............................................................................................. 25
1.13.1 Compass fails ............................................................................................ 25
1.14 Accelerometer .................................................................................... 26
1.14.1 Accelerometer test fails ............................................................................ 26
1.15 Light Sensor ....................................................................................... 27
1.15.1 Light Sensor malfunctions ....................................................................... 27
1.16 Proximity switch ................................................................................. 28
1.16.1 Proximity switch malfunctions ................................................................. 28
1.17 Real Time Clock ................................................................................. 29
1.17.1 Real Time Clock test fails ......................................................................... 29
1.18 Total call time ..................................................................................... 30
1.18.1 Total call time fails .................................................................................... 30
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