Updated the instructions with only necessary steps required. Figured out long ago but thought this thread was dead so dint post.
Hi Everyone!!
The following settings are applicable for All the people (if any) who have bought a Samsung Fascinate (SCH-I500) from Reliance and are currently stuck with stock rom setup (eclair or froyo). As you know, 1x/3g data did not work on Custom roms (either touchwiz or mtd based). DJP952 from XDA (geewiz Rom) has helped me out with the following procedure which will enable you to have the latest Rom of your choice.
Things you will need:
2) Yaffs explorer or similar app which allows you to edit your build.prop file
3) Custom Rom of your choice.
Procedure
2) Follow the procedure given by the Rom developer to flash a new custom Rom (MTD or Touchwiz) and subsequently any gapps and other apps like yaffs explorer.
3) After you successfully boot your phone and make sure everything is working fine do the following to enable 1x/3g data on your phone
5) Next you will need to Modify the build.prop with these settings:
ro.cdma.home.operator.numeric=40400 (original no will be something like 310012 etc)
ro.cdma.home.operator.alpha=Reliance (is usually verizon)
net.cdma.pppd.user=user net ( is usually user[space]verizon)
net.cdma.pppd.password=password net
Remember that if you do not find any of these settings in build.prop file you can create new entry. Type just the settings mentioned in BOLD . No extra spaces.
Thats it. Just reboot and your phone will now connect to 1x/3g network.
Cheers