PC can't detect a bricked phone (Lenovo A6020a40)

[justinfinity09]

I am using a Lenovo Vibe K5 A6020a40_S004 before flashing the A6020a40_105, hoping for that VoLTE update. I flashed it using QFil. However, when flash was done, phone won't boot into anything anymore: recovery, fastboot, (no bootloop even!). Just the LED light when connected to PC. Tried installing ADB and running adb devices from cmd, but the device doesn't show up. This is a Qualcomm device, by the way. I have all the drivers installed as well. My recovery is Android System Recovery <3e>. So, any help? Thanks a lot.