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Nokia Customer Care
General Repair Hints
This section provides general hints on repairs:
Read the tutorials or user guide on
Support > Product Support. Select the appropriate mobile terminal model to
become familiar with the Nokia product.
Take adequate ESD precautions before starting repairs, e.g. work in an ESD
Protected Area, and that an anti-static wrist strap is worn.
Use gloves to avoid corrosion and fingerprints.
Protect windows and displays with a film to avoid dust and scratches.
Use a lint-free cloth when cleaning the LCD module (e.g. Micro-Fiber cloth).
Use a soft cloth/ESD brush and Isopropanol when cleaning the pads. Do not
use a glass fiber pencil as it will scratch the surface and will lead to corrosion.
Reuse mechanical parts that are not soldered if they did not repair the failure
(except shielding lids and bent parts).
Make sure to replace the shielding lids with new ones when removing them,
so that the high-frequency leakage does not affect the device.
Always use original Nokia spare parts.
Check the soldering joints of the parts causing problems (e.g. soldered
connectors or switches) and resolder them if necessary (Level 2 only).
Remove redundant soldering flux after repair.
Meet the torque requirements when assembling the terminal (see also
"Torques for transceiver assembly" document found on Nokia Online).
Always use properly functioning test equipment to test to be sure if it is the
mobile terminal and not faulty equipment causing the malfunction.
A UIM card is required for all Go-No-Go tests.
Make a note of the Item code causing the malfunction when making fault log
entries. Also complete the appropriate part code from the assembly if
needed.
Note that some malfunctions could be software related and resolved by a
software update.
Refer to additional documents available on
Note: Check Nokia Online (NOL) for latest news and files on a regular basis.
Issue 1 04/2007
www.Nokia.com
© 2007 Nokia Corporation
> Choose your location >
Nokia Online
(NOL).
Company Confidential
2505 (RM-307)
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