Hey, i know this thread is years old. But i have this phone that just boots to the Sony logo and reboots. Tried using Xperia companion but it says phone is no longer supported. Is it possible that you have this file hosted elsewhere?FTF for Stock Xperia TL LT30at - AT&T Branded version 7.0.B.1.152
http://d-h.st/gmB
MD5 (LT30at_7.0.B.1.152_ATT.zip) = 070f3dc9c8cfeb5606da02773e0f0c8e
Rootable using Bin4ry's tools or through flashtool.
TIA!