*** YOU NEED TO REGISTER ON THE FORUM BEFORE YOU CAN ACCESS THE DOWNLOAD LINK ***
INSTALLATION INSTRUCTIONS
http://www.xperiablog.net/2015/03/17/guide-to-installing-xperia-lollipop-using-xperifirm-and-flashtool/
- Open link above and skip to the section entitled “FlashTool steps”.
- As you have already downloaded the FTF firmware file, skip to the section where you need to “Flash device”.
XPERIA FIRMWARE DETAILS
This is official stock Sony Xperia firmware.
Model: Sony Xperia Z2 Tablet LTE (SGP551)
Firmware version: 23.4.A.0.546_R5C
Region: Brazil (Generic) [1282-3619]
Android version: 5.1.1

Xperia Z2 Tablet LTE_SGP551_23.4.A.0.546_Brazil_Generic 5.1.1
Sony Xperia Z2 Tablet LTE (SGP551) Android 5.1.1 firmware - Generic Brazil