Brand: SIEMENS
Category: Mobile Phone
Document Type: Parts/Service
Language: EN
Parts/Service for SX1
Uploaded: Nov. 21, 2025, 6:25 p.m.
Manual Publish Date: 2003-06-01
This manual provides detailed repair procedures for the Siemens SX1 mobile phone. It covers various components and their associated faults, including connectors, speakers, antennas, card readers, MMI functions, cameras, joysticks, LEDs, and displays. Each section outlines affected units, fault descriptions, symptoms, and repair steps. Repair methods primarily involve component replacement using soldering techniques and visual diagnosis. Tools and materials required for each repair are also listed. ESD regulations must be followed during all repair procedures. Contact information for technical support is provided.
Troubleshooting and error codes
| Fault Description | Symptoms on GSM Tester | Priority |
| 2 I/O Connector (Slim Lumberg) | Charging problems. Problems with external loudspeaker or microphone when using a car kit. Problems with accessories connected at the I/O - connector. Problems with SW booting | Mandatory |
| 3 Battery Connector | Mobile does not switch on. Error message “WRONG BATTERY” on display. | Repair |
| 4 Connector spring for speaker | Speaker malfunction | Repair |
| 5 Antenna Connector | Network Search - No location update possible | Repair |
| 6 Card Reader | Handset does not accept SIM. | Repair |
| 7 MMI Connector | Problems with MMI function like: - Keyboard malfunction - Illumination problems - Display problems | Repair |
| 9 Camera Connector | No specific fault symptoms mentioned; implies general camera issues. | Repair |
| 10 Joystick Switch | Problem with joystick function. | Repair |
| 11 Keyboard LEDs | - Keyboard Illumination does not work | Repair |
| 12 MMI Connector | Problems with MMI function like: - Keyboard malfunction - Illumination problems - Display problems | Repair |
| 13 Display Connector | Problems with display function like: - Display Illumination problems - Display problems | Repair |