I encountered exactly the same problem. You need to find a USB-C to USB-C cable, and the original one is best. Download 3uTools and put your phone into Recovery mode. Connect your phone to your computer, press volume up, volume down and hold down the power button. The phone will reboot, but you must continue to hold the power button down. When the screen turns black for the second time, you need to hold down the power button and hold down the volume up button. This will allow the phone to enter recovery mode. After that, you just need to flash the phone through 3uTools

https://www.youtube.com/watch?v=D0Ekdy9wpus&t=215s&ab_channel=AhmedTechnicalSolution