[Q] Cannot unlock bootloader of Xperia S on Windows 8.1 64-bit and Windows 7 64-bits topic

Hi,



I would like to unlock bootloader of my Xperia S. So, I do as Sony unlock bootloader instruction

I hae different problem on Windows 8.1 64-bit (my home pc) and Windows 7 64-bit (my office pc)



For Windows 8.1 64-bit




I stuck at the 15th step. I don't get the response message. It shows only "waiting device" message even the LED light on my phone is blue (while I keep holding Fastboot button or release the Fastboot button after There is a blue LED Light ) which is only blue in 5 seconds and the light turn into orange light





For Windows 7 64-bit




I stuck at the 13th step. The computer cannot find the driver of S1Boot Fastboot even I point to the usb_driver folder to let my pc find the driver file. My pc said there is not a driver installer for the S1Boot Fastboot


my office pc still don't recognize S1Boot Fastboot





Please help