Short the two EDL pinouts on the motherboard while connecting the USB cable to the PC. :

For repairing a that is bricked or stuck in a dead boot state, you will need specific firmware and flashing tools. Firmware and Tool Links

Technical guides and file demonstrations for the Vivo Y11 (PD1930AM) dead boot repair:

Execute the flashing process. This replaces corrupted system files, including the modem and bootloader, which usually fixes "hang on logo" or "dead" states. Important Note:

The Vivo Y11 uses a Qualcomm Snapdragon 439 processor. You must force the device into Emergency Download (EDL) Mode to flash it while dead.

A "dead boot" on the Vivo Y11 (1906) often manifests as a phone that only vibrates or is detected by a computer as a Qualcomm HS-USB QDLoader 9008