GUIDED DIAGNOSIS
USB-C troubleshooting
USB-C failures usually look simple and cost money fast: a black monitor, a slow laptop, a dock that ignores Ethernet, or a charger that feels too hot. Start with the failed link in the chain, then compare the exact spec before replacing anything.
FAST DIAGNOSIS
Fix the chain before you buy
desk failureUSB-C dock monitor checkerCheck whether a dock class matches your laptop, displays, refresh rate, and charging needs.slow chargingUSB-C charger calculatorEstimate the wattage tier you should compare before replacing a charger or cable.system overviewCharging and power hubMove from failure diagnosis into the matching charger, cable, power-bank, and dock field manuals.
USB-C field manuals
Follow the host, cable, adapter, display, power, and software path before replacing a working part.
USB-C dock not detecting two monitorsUSB-C Dock Not Detecting Two MonitorsMost dual-monitor dock failures come from a mismatch in host display support, dock capability, cable quality, or refresh-rate demand. Find that mismatch before spending.Diagnose problemUSB-C cableUSB-C Cable Labels: Wattage, Data, and Video GuideUSB-C is a connector shape, not a guarantee. Match the cable to the job: charging, file transfer, monitor output, or dock reliability.Diagnose problemUSB-C charger wattageUSB-C Charger Wattage and Compatibility GuideMatch USB-C chargers and cables to phones, tablets, and laptops by understanding USB Power Delivery, wattage negotiation, ports, cable ratings, and proprietary fast charging.Diagnose problem