I have an xperia L, which is working perfectly, I wanted to swap it with an xperia Z that is faulty, the xperia Z powers ON, loads to the lockscreen, after inputting the lock code it goes OFF and goes back to the sony logo and gets to the lock screen and goes off agn continously. But i can quickly hold the power botton to power it off in the process. It charges very well when plugged. Please I want to know if the problem can be solved? Can I bring it back to life? And how can I do it. Please I need to know before I swap it. Please reply me, am new here. U can give me details on how to do it. Thanks.