I have a 2019 13" Touchbar MacBook Pro, 1.4GHz quad-core, 16GB RAM. When I plug in the USB-C adapter, it makes a noice indicating it is receiving power. However, it will not turn on. Symptoms and troubleshooting steps are as follows:
- The touchbar does not power on at all
- The screen does not power on at all
- The backlight on the keyboard does not come on
- There is no external video output over either Thunderbolt port
- Reset the SMC, power cycled the device while holding power for 10 seconds, swapping ports for power, etc
- No liquid, drops, or other disturbance
- Sits on an elevated laptop stand on a desk, so airflow should not be an issue