Question [Q] Have to reinstall the boot loader sony Xperia J

Guys, this problem-I have a sony xperia j. Decided to put CM10 did: 1. Got Ruth-here all is clear. 2. Unlock loader-here, too, everything is clear 3. Put cwm-recovery stage to put SM10 frosi kernel ontravel through the recovery stage sm10 Everything is up and working perfectly. Started to put swapper 2 and campaign have to reinstall the boot loader . The phone is gone and is no longer involved. Is the tool for firmware recovery, but phone not included in the flash mod. There was another cool feature is that the computer recognizes your phone even if it is remove the battery. Venda recognize it as «unknown device». To all appearance, I have to reinstall bootloader to hell. The phone was on HANTEI and I passed .. here are waiting for the result , would this be the case under warranty or they send me? I think that the imei database fails to prove that I unblocked the loader , I could have requested the code and is not used.