Technical Site Documentation myC-4
Ref. SCT U38 SSC DTS 0023 – Index B - February 21, 2005
Page 5-
5
8 Additional information about the no fault found
In any case: Ask to the end-user the frequency of the defect and the circumstances of its apparition (during
an incoming or out-going call, while playing, while downloading, etc.). Try to answer the questions: Where?
When? How?
•
If the customer complains about a
“Power supply / charging”
failure : (shutting down of the
mobile, problem of booting, etc.);
o
During which operation ? In which circumstances ?
o
What is the state of the battery and the charger before shipment to the repair centre ?
o
If the mobile shuts down by itself, must he enter his code pin, adjust the date and the hour
when rebooting the phone?
•
If the customer complains about a communication problem:
o
What are his residence zone and the reception level of the mobile (Number of receipt bar);
o
What is the state of the battery when the defect appears?
o
In case of loss of communication :
With or without total extinction of the mobile?
Does the loss of communication occur always in the same place and with the same
person?
Does the loss of communication occur while browsing in the menus, during the
communication, or during playing or downloading?
•
If the customer complains about a problem of blockage of key of the keyboard:
o
In which circumstances does the problem occur?
o
Did he activate the keypad locking ?
o
Did he change or remove the upper cover ?
o
Which are the non functioning keys ?
5.3
MAINTENANCE TOOLS
The following tools are necessary to carry out maintenance operations :
−
Electrical screwdrivers with tightening torque settings (0.25 NM).
−
Metal dome jig.
−
Plastic Tweezers.
−
Gloves
−
ESD protection strap
−
Soldering iron
−
Solder wick
−
Cross shaped screwdriver .00x75
