Brand: SAMSUNG
Category: MOBILE PHONE
Document Type: Parts/Service
Language: EN
Brand: SAMSUNG
Category: MOBILE PHONE
Document Type: Parts/Service
Language: EN
Uploaded: Nov. 21, 2025, 7:35 p.m.
Manual Publish Date: 2015-03-01
| Section | Problem | Troubleshooting Steps/Solutions |
|---|---|---|
| 8-3-1. Power On | Phone does not power on | Check Battery voltage. Check Clock at OSC101. Check VDDCORE voltage. Check Main Chip. |
| 8-3-2. Charging Part | Initial Failure | Check IFC200 pin voltage. Check ZD200, C156, or C200 voltage. Resolder or Replace IFC200, ZD200, C156, or U102. |
| 8-3-3. Sim Part | Phone can't access SIM Card | Check SIM200/SIM201 pin voltage and SIM_CLK frequency. Check SIMCIk signal. Check SIM_RST signal. Resolder or Replace SIM200/SIM201 connector or UCP100 or PBA. |
| 8-3-4. Motor Part | Motor does not work | Check C166 and C157. Check motor operation with 3V. Check motor voltage. Replace C166/C157, motor sample, or UCP100/PBA. |
| 8-3-5. Microphone Part | Microphone does not work | Check C148 voltage. Check MIC connection. Check MIC sample. Resolder or Replace UCP100. Resolder specific components (R315, R316, etc.). Replace MIC. |
| 8-3-6. Speaker Part | Speaker does not work | Check C302, C303 voltage. Check Ringtone functionality. Listen through speaker. Resolder U102 or L303/L309. Replace Speaker ASS'Y. |