Check if the charging LED light turns, try a different charging cable or adapter if available.
If USB-C charging is supported, try another USB-C charger.
If the device was stored in a case for months without use, the battery may be fully drained.
Keep it plugged in for 45–60 minutes. Then try the power button again
Press and hold the Power button for 20–30 seconds
Release it
Wait 10 seconds
Press the Power button again normally
Surface battery won’t charge or Surface won’t run on battery