GO Download

Steps:

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a) if you do not want to lose warranty of your phone, first thing you have to do is to backup your original customization

b) download Sony Update Service (SUS) and reinstall firmware of your phone (backup your data first)

c) after that, go to Program Files and search for folder db/some Number/blob_fs, there you find 3 files, which names start FILE

d) download and install latest Flashtool from here

e) paste the three files, which names start FILE, from blob_fs folder to folder "Firmware" included in the XPERIA Flashtool

f) open the Flashtool, click on Advanced, choose decrypt files and put all three files from blob_fs folder to the right columm

g) click ok and after approx. one minute a pop up Window will appear via Flashtool

h) mark all files and transfer them to the right column, than fill in a box in the right upper corner (fill in what you want, it is just for you)

i) now click ok and Flashtool will create backup of your original firmware customization, that you can anytime flash to your phone

For any queries, Please leave comments bellow.

HELP MAKES ALL HAPPY