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- If the test SIM card can be detected but the message "SIM Failure" remains on the customer's card, his
card must be damaged. Ask him to contact his network operator.
Otherwise send the mobile for repair
11.4 Display problems
Contrast, icons and matrix of the display can be checked with the test SIM card by pressing keys "5", "6" and
"7" .
If everything works in test configuration it then means that a phone setting is disabled or does not suit well. It
can be solved in the phone menu.
Otherwise send the mobile for repair
11.5 Buzzer problems
Buzzer tone can be checked with the test SIM card by pressing key "1" and "2".
- If it does not sound properly send the mobile for repair.
11.6 No sound in Loudspeaker
The sound from the loudspeaker can be checked with the test SIM card by pressing key "3".
- Check the microphone and the earpiece, If the failure cannot be found out, send the mobile for repair.
11.7 Communication problems
- Sound quality can be checked in audio loop test (sound distortion, whistling, echo, ...)
- If the mobile passes the radio tests successfully, we can assume that the phone works properly. The
customer must check the coverage area of his network operator or that he does not use the phone in a radio
shadow (outside the coverage area, in a tunnel or between tall buildings, ...)
- If the mobile does not pass the radio tests, send the mobile for repair.
11.8 Defective antenna
- If the antenna is broken or curved => replace it
11.9 Keyboard problems
-The keyboard can be checked with the test SIM card.
- If a key or a row does not respond, check the keyboard.
11.10 Problems to send SMS messages
Check the Center number. It may be empty or wrong.
12.0RECOMMENDED PART LIST- TCD 989 XENIUM DB
12.1 Common parts – out of warranty
REFERENCE
DESIGNATION
POSITION
REPAIR LEVEL
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