blutooth not working

hi devs.

i have samsung galaxy core2.

i dought it and the next day i flashed CWM recovery and rooted my device.

i did a nandroid backup just after rooting.

after 4 months or so i was trying to make a lollipop rom for my device using kitchen.

i needed a base rom so i used the boot.img and system.ext4.tar.a from my nandroid backup and just make a working folder out of that.

did nothing with that stock rom just provided a correct update binary and flashed it on my device.

every thing works as i have a device just out of box.

but only bug i get is bluetooth is not switching onn.

need hint for error where should i check for that.

is that a misplaced siblink in updater script or any think else.

thanks in advance

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