Poco X3 Schematic Diagram Download !new! May 2026

POCO X3 NFC (codenamed "Surya" or "Karna") and the POCO X3 Pro

Backlight Circuit: Checking the connections between the display connector and the backlight driver IC. poco x3 schematic diagram download

Finding a reliable schematic diagram for the Poco X3 (codename: surya or karna) is essential for performing board-level repairs like tracing short circuits or fixing "dead boot" issues.  📂 Common Diagram Types  POCO X3 NFC (codenamed "Surya" or "Karna") and

Use a Multimeter: Never solder based on a diagram alone; always verify the short or open circuit with a digital multimeter first. Identify the board and revision code at top of schematic

Trace Troubleshooting: Mapping "service ways" to find broken connections (open circuits) or shorts.

7. How to read the schematic (step-by-step)

1. Identify the board and revision code at top of schematic.
2. Find the power section first: battery connector, PMIC/charging IC, power rails (VBAT, VCC, VREF). Note expected voltages.
3. Locate USB/charging path and protection MOSFETs/fuses.
4. Trace the power distribution to CPU, PMIC, PMU, RF modules.
5. Identify audio codec, speaker, mic, and headphone paths including amplifiers.
6. Find display and touch controller interfaces (MIPI lanes, touch IC, backlight driver).
7. Locate connectivity modules (Wi‑Fi/Bluetooth, cellular RF front-end) and antenna switch circuits.
8. Note test points (TP) and JTAG or ISP pads for debugging/programming.
9. Use component designators (U = IC, R = resistor, C = capacitor, L = inductor, D = diode, Q = transistor/MOSFET) to cross-reference parts.