Hong Kong Island Eastern 
Computer type：Laptop（Windows） What type of computer do you have?
Laptop（Windows）
What are the problems with your laptop?
Others, 插入火牛頭供電（關機後可以正常叉電）或type-c供電都不能顯示畫面，但掹掉後有可以正常
Display not working properly
Display not working properly
What is your computer brand and model? (optional)
gu502lw
Do you want to add photos for the repair (optional)
Please briefly explain your problem to let PROs better understand your case (optional)
使用火牛插入後，畫面即時關閉，掹掉火牛能夠回復正常，火牛能夠正常供應19.7 V，關機後能夠正常充電，另外使用type-c供電也一樣情況
What time do you prefer to have the service?
Any time
Where is the computer repair?
Provider's location
Anything else we need to know?
No
Where is your location?
Hong Kong Island,Eastern
