Do you have flashtool? If not, download it, install drivers and open it. After that presso "BLU" button, connect the device in flashmode (vol-- and connect phone) , finally follow the instructions to relock bootloader
Oh ya...guess what i get after i click
download this FTF:
Xperia S -> Xperia-S_Relock_bootloader.ftf
-_- That's why i wanna to search for help..
So why didn't you ask this question in the Relock thread instead of creating a new one? If you did that, you might have read the final page there and see that nowadays the relock ftf is included with Flashtool. It's also the reason why Flashtool is so enormous (119MB isn't a normal size for a tool like that), because it's packed with relocking ftf's and drivers.
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