Hi, i can't seem to find someone with a xperia ZL with the same problem.. All i can see in the web are for xz.
When i was using my phone, (80% battery), i took some pictures then it suddenly turned off. Now, i tried turning it on but nothing happens, no led blink no nothing.
I tried charging it and voila, the red notification light of death appeared. Mind you that I am using a newly installed OEM Sony Battery (used already for a month) on my phone as the previous one also died.
I was searching and all they say is that charge the phone then reset it.. tried that also, charged it all day then tried resetting, still no action.
Tried SUS, can't connect to phone, tried flashtool, also same thing.