So I rooted my phone via Oneplus Toolkit but somehow maybe because of driver problem, the recovery was still Cyanogen recovery. I decided to flash a new recovery again via Toolkit but after turned it off from fastboot mode and reboot, my phone wouldn't boot. Just black screen. I couldn't enter fastboot mode either. When I connect it to PC via USB it shows QHSUSB. I did some search online and I'm afraid it's bricked. Is there anyway I can save it? Thanks in advance!