xperia ray , Can I unlockbootloader with out usb debugging

[asok99]

Sir, I have problem with my xperia ray which doesnt turn on and stop in sony logo...I had tried pc campinion and sony update service but also my problem existed same... so i try to flash my phone but the phone is locked......when i try to unlockbootloader usb debugging is required to be enabled....so in this condition i cannt enbale the usb debugging becasue my phone doesnt turn on....so please can you help me to solve my problem.....

[Thommo]

All you can do is perform a system repair which will factory reset your phone ie:Erase everthing and if that doesn't work you will need to re visit the service centre

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)

Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the onscreen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP