samsung note 3 null Imei

[shakil143]

i have one samsung note 3which has NUll imei problem and basebend unknown
RP SWREW : s2, T2, R2, A3, P3
then i connect with z3x box and try repair WIPE/EFS/NVM
PROCESS WAS

Searching Samsung USB Flash interface... COM34 detected
Setup connection... OK
Reading PIT from phone... OK
Erasing MODEMST1... OK
Erasing MODEMST2... OK
Erasing FSG... OK
Wipe NVM done

Done with Samsung Tool PRO v.29.1

but it was giving same problem

then Flash this phone with N9005XXSGBQA3_N9005OPSGBPG2_OPS

process was done

after that i found that basebsnd was thier and IMEI was showing only 06
then factory reset this phone after that IMEI was 01 only

but phone keep auto restarting

then i again flash this phone with 4.4.2 one but now its showing null IMEI with some errer like contact storage stops working, V voice app stops working exc.

so what can be problem and whats the solution for this phone

thank you