: You need a stock firmware file (FTF) specifically for the H3113 model. You can download this directly through the XperiFirm tool integrated into Flashtool.
: Download and install the latest version of Androxyde’s Flashtool. sony h3113 lock remove ftf
There are a few methods to remove the lock on Sony H3113, including: : You need a stock firmware file (FTF)
Before attempting lock removal, back up your TA partition if you have ever unlocked your bootloader. This preserves your DRM keys. including: Before attempting lock removal