My Huawei Y9 2019 shutdown and could not power up, Help!

Hello user!
Make sure the phone battery is charged:
- Clean the charging port of the phone using a can of compressed air. Make sure that any dirt or debris stuck in this port is removed.
- Fully charge the phone using its wall charger.
- In case the phone does not charge then try using a different charging cord and wall charger. You should also try charging the phone from a computer USB port in case charging using the wall charger fails to work.

Perform a soft reset:
- Press and hold the Power and Volume down key for up to 45 seconds.
- Wait as the device restarts.

Start the phone in Safe Mode:
- Power off the phone by holding down the power button for a few seconds.
- Press and hold the power button and release it when you see the Huawei logo on screen.
- After releasing the Power key, immediately press and hold the Volume down key.
- Keep holding the Volume key till the phone completely boots up.
- Once the phone boots up,  “Safe mode” should appear on the bottom of the screen

Wipe the cache partition of the phone:
- Turn off your phone.
- Press and hold the Volume UP button along with Power button on your  device simultaneously for a few seconds
- The phone will enter the stock recovery mode
- Use volume buttons to highlight ‘wipe cache partition’ and use power key to select it
- Reboot the system once the process is completed

Perform a factory reset:
- Turn off your phone.
- Press and hold the Volume UP button along with Power button on your  device simultaneously for a few seconds
- The phone will enter the stock recovery mode
- Use volume buttons to highlight  select wipe cache/factory reset and use power key to select it
- Reboot the system once the process is completed

https://thedroidguy.com/how-to-fix-the-huawei-y9-wont-turn-on-issue-1105377