While configuring 1x and EvDO on Verizon Samsung Stellar i200, it is observed that due to more security on this phone, the phone goes offline while selecting CDMA bands. If the phone does not restore to factory NAM, then a downgrade to stock ROM is essential. If the phone goes offline on 4.2.2 or 4.1.2 (VRBMA1) it should be downgraded to stock 4.0.4 (VRALG4) via ODIN. As soon as phone boots on 4.0.4 ROM, dial *#22745927 and press ##72786# to clear NAM settings. Phone will be on Reliance network once it boots. Below are the factory images in case anyone needs them.
Samsung Stellar ROM flashing process:- http://www.all-samsungphones.com/samsung-galaxy-stellar-i200-stock-rom-image-download-and-install.html/
ROM Repository:- http://goo.im/devs/invisiblek/i200/