[Q] Cannot boot or go into recovery and stucked in sony logo (rooted) topic

I have wiped the system accidentally in the twcp recovery. Now I cannot get past the Sony logo and cannot go into recovery mode (i have tried pressing vol up/down after power off but no avail). I have tried the flashtool but cannot detect USB connection. I was able to turn off by pressing power + volume up and that's all I can do. Please help. Thank you