[Q] IMEI Change :(

[MATHReX]

Hello Guyz !
I Had Official Android 4.1.2 !
Then I Tried To Root !
It Rooted Successfully But Did Not Booted In Recovery Mode But The Phone Was Working Good !
Then I Restored Official Android 4.1.2 Firmware Build(N7100XXDLL4_N7100ODDDLL2_N7100DDDLK6_HOME)
When Phone Restored..
There Was No Service ! I Checked My IMEI ! It Was Like 0064..
Then I Again Restored It With The Same Build ! The IMEI Changed To 004....Something !

And Now No Service ! How Can I Fix This IMEI Issue..!! Please Help Me..