i am facing problem in my motorola droid razr Maxx HD. since i had updated it i was not able to use mobile data. tough it is swithched on but mobile data services are not avilable neither i can see any icon of the active mobile data. though when i put a GSM sim card i can use mobile data. reliance customer care guys were not able to help since APN settings cant be edited in this phone. 
I have already hard & factory resetted my phone but was of no use. 
Hence I am in. Tell me what to do 
Carrier: Reliance CDMA 
Version of OS: kitkat 4.4.2 
Model: Motorola droid RAZR Maxx HD 
SIM: normal cut sim to micro size 
Kitkat upgrade method: OTA 
Issue: no data after upgrade 4.4.2 but was able to use earlier in 4.1.2