Knowing the weak points of this device can make troubleshooting much faster.

The phone boots (vibrates/makes sound) but the screen remains completely black or extremely dim.

: The Pro version features the Snapdragon 860. Detailed motherboard schematics for this model are available for download as PDF files on Scribd .

: Look for the Qualcomm Snapdragon 732G (SM7150-AC) block in the center.

Note: These files are intellectual property of the manufacturer and are intended for authorized service centers. Always respect copyright.

Poco X3 Pro Motherboard Schematic | PDF | Chess | Chess Theory. 79%(14)79% found this document useful (14 votes) 51K views4 pages. Poco X3 Schematic Overview | PDF - Scribd

For complex hardware issues, consulting with a ensures that industry safety standards and building codes are followed to prevent injury or further damage.

If you are a professional technician or an experienced DIY enthusiast, the schematic is essential for (micro-soldering).

: Open the layout diagram and locate the USB input test point ( VBUS_5V ). Trace the path to the OVP (Over-Voltage Protection) IC and then to the SMB1395 charging IC. Check for shorted capacitors around the charging chip. 3. Display and Backlight Failures

I can walk you through the standard or specific test points to check on the motherboard.

If a chip is identified as faulty, use a hot air rework station with proper temperature control (usually 350°C–380°C depending on the alloy) to replace the component. Refer back to the schematic to ensure proper pin 1 orientation.

Working with smartphone hardware carries risks. Keep these points in mind:

Downloading the Poco X3 schematic diagram requires some caution and attention to detail. Here are the steps to follow:

Here’s how to interpret a typical smartphone schematic page: