Parts/Service for SM-B105E

Parts/Service for SM-B105E

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

  • Disassembly: Follow numbered steps to carefully dismantle the phone, paying attention to cautions regarding damage to components, molding, and specific parts like the torch window and shield can.
  • Assembly: Reassemble the phone by following the numbered steps in reverse order, ensuring proper placement of all components and handling them with care to avoid damage.
  • Software Update: Connect the device to a PC using the Downloader tool, initiate the download process, and confirm successful completion. Be cautious about power off situations during the initial boot time.
  • IMEI Writing: Use the Daseul Launcher software to extract and run IMEI writing processes, select sequence files, and configure hardware settings before starting.
  • RF Calibration: Requires specific software, hardware (power supply, JIG BOX, cables), and a connection to a calibrated test instrument (Agilent 8960) to perform RF calibration.

Troubleshooting and error codes

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.
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