Level 1-2 Service ManualC257/C261GSM 900/1800GSM850/1900C257/C261Dual Band Wireless TelephoneRev. 1.03
Product Overview C257/C261 10 July 1, 2005• SIM Toolkit™ Class 2 (STK) (Network, subscription and SIM card or service provider dependent feature. Not
Level 1-2 Service Manual General FunctionsJuly 1, 2005 11General FunctionsControls, Indicators, and Input/Output (I/O) ConnectorsThe C257/C261 phone&a
General Functions C257/C261 12 July 1, 2005Liquid Crystal Display (LCD)The LCD provides a multicolor backlit color display with user-adjustable contra
Level 1-2 Service Manual General FunctionsJuly 1, 2005 13User Interface Menu StructureThe table below shows a portion of the C257/C261 telephone menu
Tools and Test Equipment C257/C261 14 July 1, 2005Battery FunctionThe telephone displays a battery charge indicator icon in the idle screen to indicat
Level 1-2 Service Manual DisassemblyJuly 1, 2005 151. To order in North America, contact Motorola Aftermarket and Accessories Division (AAD) by phone
Disassembly C257/C261 16 July 1, 2005Removing and Replacing the BatteryAll batteries can cause property damage and/or bodily injury such as burns if a
Level 1-2 Service Manual DisassemblyJuly 1, 2005 174. To replace, insert the battery with the 2 tabs on its bottom end into the battery slots of the p
Disassembly C257/C261 18 July 1, 20053. Pry away the back cover from the top left corner.Figure 9. Prying open the back cover4. Remove the vibrator mo
Level 1-2 Service Manual DisassemblyJuly 1, 2005 196. Remove the side rubber.Figure 12. The side rubber7. Remove the LED rubber.Figure 13. The LED rub
Table of Contents C257/C2612 July 1, 2005Table of ContentsIntroduction ...
Disassembly C257/C261 20 July 1, 20058. Remove the camera rubber.Figure 14. The camera rubber9. Remove the speaker rubber.Take precaution to avoid dam
Level 1-2 Service Manual DisassemblyJuly 1, 2005 21Removing and Replacing the Transceiver Board, the Keypad, and the Antenna Module1. First, remove th
Disassembly C257/C261 22 July 1, 20054. Gently pry the antenna module away from the transceiver board.Figure 18. Removing the antenna moduleRemoving a
Level 1-2 Service Manual DisassemblyJuly 1, 2005 233. Pry off the keypad PCB.Figure 20. Removing the keypad PCBRemoving and Replacing the LCD Module1.
Disassembly C257/C261 24 July 1, 20053. Remove the receiver using a tweezers.Figure 22. Using tweezers to remove the receiver4. Very carefully disconn
Level 1-2 Service Manual DisassemblyJuly 1, 2005 255. Remove the LCD.Figure 24. The LCDRemoving and Replacing the Camera Shielding, the Microphone, an
Disassembly C257/C261 26 July 1, 20053. Using a camera jig provided by Motorola, carefully pinch and pull out the camera module.Figure 26. Using a cam
Level 1-2 Service Manual Subscriber Identity Module (SIM) and Identification LabelJuly 1, 2005 27Subscriber Identity Module (SIM) and Identification L
Subscriber Identity Module (SIM) and Identification Label C257/C261 28 July 1, 2005WhereOther label number configurations present are:• TRANSCEIVER NU
Level 1-2 Service Manual TroubleshootingJuly 1, 2005 29TroubleshootingManual Test ModeMotorolaC257/C261 telephones are equipped with a manual test mod
Level 1-2 Service Manual IntroductionJuly 1, 2005 3IntroductionMotorola® Inc. maintains a worldwide organization that is dedicated to provide responsi
Troubleshooting C257/C261 30 July 1, 2005C257/C261 Troubleshooting ChartTable 4: Level 1 and 2 Troubleshooting Chart Symptom Probable Cause Verificati
Level 1-2 Service Manual TroubleshootingJuly 1, 2005 31Programming: Software Upgrade and FlexingContact your local technical support engineer for info
Part Number Charts C257/C261 32 July 1, 2005Part Number ChartsFigure 29. C257 Exploded View Diagram
Level 1-2 Service Manual Part Number ChartsJuly 1, 2005 33Figure 30. C261 Exploded View Diagram
Part Number Charts C257/C261 34 July 1, 2005Exploded View Parts ListTable 5: C257 Exploded View Parts ListItem NumberPart Number Description Specifica
Level 1-2 Service Manual Part Number ChartsJuly 1, 2005 35Table 6: C261 Exploded View Parts ListItem NumberPart Number Description Specification001 22
Part Number Charts C257/C261 36 July 1, 2005There is a danger of explosion if the Lithium ion battery pack is replaced incorrectly. Replaceonly with t
Level 1-2 Service Manual Part Number ChartsJuly 1, 2005 37AccessoriesTable 7: List of AccessoriesDescription Part NumberPower SolutionsTitanium batter
Level 1-2 Service Manual IndexJuly 1, 2005 Index-1IndexAAboutAudience 4Conventions 5Scope 4Accessories and Aftermarket Division 6Audience 4BBatteryDis
Level 1-2 Service Manual IndexJuly 1, 2005 Index-2LLeft Soft Key 11Liquid Crystal Display (LCD) 12Low Battery 14MMechanical Serial Number 27Menu Key 1
Introduction C257/C261 4 July 1, 2005Computer Program CopyrightsThe Motorola products described in this manual may include Motorola computer programs
Level 1-2 Service Manual IndexJuly 1, 2005 Index-3TTools and Test Equipment 14Troubleshooting 29UUSB Connector Port 11User Interface 11User Interface
MOTOROLA, the Stylized M Logo, and all other trademarks indicated as such herein are trademarks of Motorola, Inc.All other product or service names ar
Level 1-2 Service Manual IntroductionJuly 1, 2005 5ConventionsSpecial characters and typefaces, listed and described below, are used in this publicati
Introduction C257/C261 6 July 1, 2005Parts ReplacementWhen ordering replacement parts or equipment, include the Motorola part number and description u
Level 1-2 Service Manual Specifications (C257/C261)July 1, 2005 7Specifications (C257/C261)General Functions SpecificationDimensions 109.85*49.95*14.9
Specifications (C257/C261) C257/C261 8 July 1, 2005Transmitter Functions SpecificationRF Power Output 32.5 dBm nominal GSM90030 dBm nominal DCS180032.
Level 1-2 Service Manual Product OverviewJuly 1, 2005 9Product OverviewThe Motorola C257/C261 features a global system for mobile communications wirel
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