Hi everyone. I have a friend's Redmi 3 device with locked bootloader (not sure but most possible). Device starts fine but soon screen goes black and becomes unresponsive. Pull down menu works sometimes. I can go to settings, but screen goes black almost immediately so I can't enable developer mode and usb debugging. I can boot to recovery menu, and fastboot menu also. When connected to pc, ("Xiaomi Composite MDB Interface" in device manager) MiPcSuite recognizes the device but can not import any file. Every few seconds the mobile beeps like connecting. How can I put any Rom image since I can not unlock it's bootloader?