lg g2

i bought lg g2 .. but i don't shore about the model .when i search imei of my phon online they show model number as d802 .. but when i open bettery back cover there is writen 801 and 803 .. so i m not sure about my phon .. my majour problem is when
i go to wcdma mode and lte its not working signals .. so kindly if any one tell me the solution of it .. i leaving in pakistan .. the mobile come from dubai its ... and mobile ... software version. d80220a-hkg-xx ... karnel version 3.4.0........ and baseband version m8974a-aaaanazn-1.0.190084..... mobile network mode type is edge .. and its rooted phon