Ensure reliable internal communication with this mainboard flex cable, designed to bridge power, data, and signalbetween the motherboard and sub-board in the Samsung S23 Ultra. Essential for functions like charging, SIM detection, audio, and display sync, this part is a must-have for board-level repairs and refurbishing.
If you're facing:
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Charging issues
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No display signal after repair
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SIM or network communication failures
This OEM-style, unbranded cable provides a clean, plug-and-play solution.
Key Features:
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Connects motherboard to sub-board (handles charging, SIM, audio, display sync)
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Compatible Models:
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Samsung S23 Ultra – SM-S918B, SM-S918U, SM-S918U1, SM-S918N, SM-S918W
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Gold-plated connectors for maximum signal integrity
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Solder-free and firmware-free – ready for professional installation
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Ideal for board swaps, charging failures, and signal troubleshooting
Repair Tip:
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Disconnect the battery before installation
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Use ESD-safe tools
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Avoid over-bending or creasing the flex strip during fitting