So, if someone dealing with bootloader unlock issue on Redmi 3S or Mi5 or if bootloader unlock stops at 50% then we’ve got a solution. If you can’t find anything related to Xiaomi in Device Manager, and it shows Kedacom usb device, even if you’ve drivers installed? Do you see error message like this: “Can’t verify device. Not connected to Mi phone.”? Here’s the short guide on how to fix this.