Apparently Sony is willing to replace the phone free of charge assuming it has no physical damage caused from a drop or something. I was running CM11 on an unlocked BL. I went ahead and flashed the 14.3.A.0.681 US Unbranded FW with flashtool and then locked the BL. Since the screen does not work, I cant enable USB debugging to restore the TA-Backup or install a recovery to get on ADB.
How can I enable usb debugging without having an input (if possible) or how can I install recovery using flashtool or fastboot on a phone without an input aside from the volume buttons?
Since the phone is already on a stock FW with a locked BL will Sony still detect a modified device?