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Be very careful when disassembling the NHM-4/NHM-4NX while removing the grip module: Do not scratch it. Refer to disassembling instructions in the service manual of NHM-4/NHM-4NX. Both phones, 8910 and 8910i has the same typ (NHM-4NX) printed on the label. Pay attention on the different sales names, when relabeling the phone.
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CONFIDENTIAL 3 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 -PCB handling & cleaning To avoid damages of PWB and/ or components through electrostatic discharging, handle the module in ESD-suitable cases only.
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CONFIDENTIAL 4 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 ESD PROTECTION REQUIREMENTS Electrostatic discharge can easily damage the sensitive components of electronic products. Therefore, every Service Partner has to take of at least some precautions, such as ESD restricted area, floor, table, covering, chair(s), shoes or wristbands.
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Nokia Mobile Phones. All rights are reserved. Copying, including reproducing, modifying, storing, adapting or translating any or all of this material requires the prior written consent of Nokia Mobile Phones. This material also contains confidential information, which may not be disclosed to others without the prior written consent of Nokia Mobile Phones.
CONFIDENTIAL 6 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 Contents GENERAL PREFACE ESD Protection Symptom Code List scratch sound when fast closing of grip module I002 Too fast opening of grip module I002...
CONFIDENTIAL 7 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 Scratch sound when fast closing of grip module I002 Pre-Check: Press the side button to open the Grip module. Now close the grip.
CONFIDENTIAL 8 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 Too fast opening grip module I002 Pre-Check: Press the side button to open grip module I002. If the Grip module opens to fast, follow repair instructions: See “Too fast opening grip module I002”...
First try to change the grip module and test with a working one. Note! For disassembling instructions refer to service manual NHM-4 8910, chapter “Disassembly and Troubleshooting Instructions” If the problem is solved, probably the flex foil was broken or had no connection to the connector.
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First try to change the Grip module and test with a working one. Note! For disassembling instructions refer to service manual NHM-4 8910, chapter “Disassembly and Troubleshooting Instructions” If the problem is solved, probably the flex foil was broken or had no connection to the connector. (See also pictures in chapter “Microphone sometimes does not work”)
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First try to change the grip module and test with a working one. Note! For disassembling instructions refer to service manual NHM-4 8910, chapter “Disassembly and Troubleshooting Instructions” If the problem is solved, probably the flex foil was broken or had no connection to the connector. (See also pictures under chapter “Microphone sometimes does not work”)
CONFIDENTIAL 12 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 “Insert SIM card” Pre-Check: Insert a working SIM card and turn on the phone. If “Insert SIMcard “ appears on the phone display, follow the repair instructions: See “Insert SIM card”...
CONFIDENTIAL 13 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 Flowchart “Insert SIM card” "Insert SIM card" Check with oscilloscope VSIM, SIMCLK, SIMDATA, SIMRST with oscillograms described in chapter "Insert SIM card".
CONFIDENTIAL 14 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 Flash update fails (C683) Pre-Check: Flash the phone with the newest SW: If the flash update fails with error message C683, follow repair instructions:...
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CONFIDENTIAL 15 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 If all signals are ok, press the power on button again and check: Vflash1 = 2.8VDC at V130 Pin 6. If the voltage is not ok, check Vflash line to UEM D200 for shorts or disconnections and resolder or change faulty components.
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CONFIDENTIAL 16 (16) NHM-4/NHM-4NX 8910/8910i Repairhints Customer Care Europe, Middle East & Africa Version 2.0 Approved SCCE Training Group Date 03.06.2003 CHANGE HISTORY Originator Status Version Date Comment TS Training Draft 03.09.2002 First draft version for the repair group Group Approved 31.10.2002...