15 years of engineering practice· 6 cases + 4 records
Click on any case to view the complete process: receiving → testing → processing → delivery, including time, results and customer feedback. These cases come from our 2025–2026 service records.
Cabling/Wi-Fi coverage/surveillance, office and factory scenarios






Original long article by engineer, including complete troubleshooting process, accessory model and charging details




A 15-year engineering team delivering professional, efficient and transparent one-stop IT services