Please do not post your questions or problems here. This section for GENERAL things about Xperia Z like mods or tweaks or guides NOT FOR QUESTIONS.
The number 1 of XDA rules clearly saying SEARCH BEFORE YOU POST! there are many threads here about bricked devices or how to flash ROMs and the tutorials and answers about that is already exist
We'll help you more if you post your questions in questions and answers section
Don't think the word "general" means to everyone see it and answer your question.
And always remember to NOT post your question in the general section here
I'm talking here not as a forum moderator. I'm a senior member as everyone not new here. I'm saying this because the moderators of Xperia Z forum are not active here. just suddenly..
Now if you are a new on XDA and have a problem or question please take a look on Questions and answers section and see others problems to find your answer. And if NOT found your answer post your question in Questions and answers not here
Hope the Xperia Z forum moderators pay more intention on this forum.
And thanks for your understanding