Xiaomi BlackSpark 4 Pro USB Type-C Charging and USB Problem Solution | Full Hardware Repair Guide скачать в хорошем качестве

Xiaomi BlackSpark 4 Pro USB Type-C Charging and USB Problem Solution | Full Hardware Repair Guide

In this video, we share the complete Xiaomi BlackSpark 4 Pro USB Type-C charging and USB problem solution. If your phone is not charging, not connecting to PC, or showing slow charging, this video will help you solve it completely. Learn how to check the USB Type-C port, sub-board, PMIC, charging IC, and USB data lines step-by-step. This video includes: ✅ Charging & USB port pinouts explanation ✅ Checking sub-board voltage & continuity ✅ Testing VBUS, D+, D-, GND, and ID lines ✅ Replacing damaged Type-C connector ✅ Fixing USB detection issue with PC ✅ Full hardware troubleshooting guide Watch till the end for a 100% tested Xiaomi BlackSpark 4 Pro Type-C port repair solution. 🔧 Step-by-Step Repair Guide (30 Steps): Power off your Xiaomi BlackSpark 4 Pro. Remove SIM tray and back cover carefully. Disconnect the battery connector. Unscrew and remove sub-board shield cover. Detach the USB Type-C port flex cable. Inspect the port for physical damage. Clean the Type-C port with IPA using a soft brush. Use a magnifier to check bent or broken pins. Replace damaged Type-C port if needed. Check voltage at VBUS pin using multimeter. Ensure 5V input from charger to sub-board. Test D+ and D- USB data lines continuity to CPU. Replace sub-board if lines are open or corroded. Check Type-C port connector joints under microscope. Re-solder loose pins carefully. Test GND line continuity to mainboard. Connect charger and observe charging current. If no charging, check the PMIC near charging section. Replace PMIC if voltage not reaching the battery. Reconnect USB to PC and check detection. If PC not detecting, check USB filter IC. Replace the USB filter or ESD protection IC if faulty. Check all connectors are clean and tight. Reassemble the sub-board and screw it back. Reconnect battery connector. Power on the phone and connect to charger. Verify charging symbol appears. Connect USB to PC and verify detection. Confirm fast charging and data transfer working. Final test and reassemble the back cover. 🔥 Hashtags: #XiaomiBlackSpark4Pro #XiaomiChargingProblem #XiaomiUSBProblem #XiaomiTypeCSolution #BlackSpark4ProChargingFix #XiaomiRepair #TypeCPortRepair #ChargingICRepair #XiaomiHardwareRepair #PMICRepair #USBDataFix #BlackSpark4ProUSB #ChargingSolution #MobileRepair #HardwareRepair #StepByStepRepair #XiaomiBlackSparkFix #TypeCChargingProblem #XiaomiUSBPortFix #XiaomiChargingSolution #USA #UK #Europe #India #Pakistan #Bangladesh #Nigeria #UAE #HowToFixXiaomiBlackSpark4Pro