Troubleshooting

W370\W375

Level 1 and 2 Troubleshooting Chart (Continue)

Symptom

Probable Cause

Verification and Remedy

 

 

 

 

 

 

7. Phone will not recognize or accept SIM

SIM card defective.

Check the SIM card contacts for dirt. Clean if

card.

 

necessary, and check if fault has been

 

 

cleared. If the contacts are clean, insert a

 

 

known good SIM card into the phone. Power

 

 

up the phone and confirm that the card has

 

 

been accepted. If the fault no longer exists,

 

 

replace the defective SIM card.

 

 

 

8. Keypad not functioning.

Keypad defective.

Use alcohol to wipe the keypad metal dome.

 

 

Check if fault has been cleared. If the fault is

 

 

still present, either replace the keypad or refer

 

 

to a Level 3 Service Center for the keypad

 

 

metal dome replacement.

 

 

 

9. Vibrator feature not functioning.

a) Vibrator faulty.

Check general condition of vibrator. If it is

 

 

good, proceed to b.

 

 

 

 

b) Vibrator defective.

Replace the defective vibrator.

 

 

 

10. No or weak audio when using

a) Headset plug not fully pushed.

Ensure the headset plug is fully seated in the

headset.

 

jack. If the seated is OK, proceed to b.

 

 

 

 

b) Headset defective.

Temporarily replace the headset with a known

 

 

good headset. Ensure good seated. Place a

 

 

call and verify improvement in headset audio.

 

 

If fault is cleared, replace the defective

 

 

headset.

 

 

 

11. Camera module not functioning. (for

Camera module defective.

Replace the camera module as described in

W375)

 

the procedures. Verify that the fault has been

 

 

cleared and reassemble the phone with the

 

 

new camera module.

 

 

 

Programming: Software Upgrade and Flexing

Contact your local technical support engineer for information about equipment and procedures for flashing and flexing.

40

Aug.15, 2006

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Motorola W375 service manual Programming Software Upgrade and Flexing