Diamond cdma won't be detected by my PC.
 

Hi I flashed my htc diamond (cdma) with a new 6.5(was on 6.1 mightyrom). Since it won't be detected by my mobile device center. I tryed several time to reinstall the mobile center no issue. I use my usb to flash it and to recharge my battery. Some1 can help me with this problem? Thx.