Thank you for ur reply, yes bootloader was unlocked and I was trying to install the custom rom but after restarting my xperia L never started again. Black dead...no logo just red LED blinking and I tried key combination but nothing. To repair through sus and flash tool it should be recognized by the pc. Its being recognized as unknown device by pc and did try to install driver manually but no luck. In both sus and flash tool I found message no phone attached.
Plz guide me.
U try to charge the phone??
Blinking red ligth is for no batery power
Maybe is this the problem
The red blinking light sounds like your battery is low, I read about someone who had do e this not long ago. Couldn't boot tinto recovery because they had insufficient charge. Charge your phone on mains power for an hour, and then try flashtool again. But make sure you wipe everything.
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