This guide will show you 4 tips to fix Surface stays black screen problem.
This can be caused by a variety of factors, including have problems with the power supply, exposure to water, exposure to too much heat or cold, or even accumulated dirt.
Check the power adapter If it doesn't work, exchange a new one.
If the Tablet loses power immediately after being disconnected from the power adapter, the battery pack may need to be replaced.
If power adapter does not securely fit into the Tablet, the charging port might have lost its magnetic charge.
In this case, you may need to install a new charging port. The charging port can be bought from Microsoft.
If exposure to water, disconnect everything from your Surface first.
Unplug the power and remove everything you may have connected to your Surface—power supply, Typing Cover, accessories, adapters, and micro SD card, and remove your Surface from the docking station if you're using one.
Place it in a dry and safe desk, make the water out from ports, then wait for it dry naturally for 48h. During this period, its danger to power it on.
If the screen is still black, take your Surface to the local Windows Store to have a Genius diagnose the problem.
Tips: Surface is designed to work between 32°F and 95°F (0°C to 35°C). Lithium-ion batteries are sensitive to high temperatures, so keep your Surface out of the sun and don't leave it in a hot car or refrigerator, keep away from air-conditioner outlet.
This is an impossible reason, but clean your Surface regularly and put it away from dust is a good habit and choice. If your tablet turns on, but the screen is unresponsive to touch, see in Fix Surface Stops Responding Problem.
