Z2 dont start and boot loop SE screen

Dear All,
It has been now 4 months i have this Z2, unitl now everything was working fine, last day the battery drained completely, 0% and it got off. after some time i connected the phone to wall charger using original charger and cable , the screen boots and sony xperia flash and then it get off and then again keeps boot loop, 
The RED led comes on and then off , and screen flash SE and keeps looping... i tried making power off holding UP + power nothing works.
i tried connecting to PCC but it also doesnt detect and keep searching phone. i tried repairing using PCC but it doesnt detect phone. i tried holding DOWN volume during power on but green led doesnt come ...
 when i press UP + power on , Blue LED comes but nothing happens.
dont know wht has happened, kindly suggest me what to do.. im unable to use the phone or powere on or im not able to do anything.
Await your best support at earliest.
Wajid
Solved!
Go to Solution.

Try performing a system repair using Pc Companion as this will often fix issues - This will factory reset your phone
Switch off your phone and unplug from Pc
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
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.   Richard P. Feynman

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