Here you can found Xperia J firmware :
FLASHING USING FLASHTOOL
https://www.xssdp.net/uploads/2018/07/xssdp-logo-dark.png 0 0 Satrio Dwi Prabowo https://www.xssdp.net/uploads/2018/07/xssdp-logo-dark.png Satrio Dwi Prabowo2014-04-30 05:09:002014-04-30 05:09:00Firmware Sony Xperia J Ice Cream Sandwich