Verizon US Storm (9530 & 9520) owners are no longer allowed to register with Vodafone India Blackberry Service.
Vodafone customer care confirmed that starting June 2011, all US Verizon unlocked phones will only work as a normal phone and will NOT register to Vodafone carrier to provide BIS (BlackBerry Internet Service).
What this means is the unlocked device from US has to be used only for phone calling.
Since the unlocked Verizon blackberry devices are not getting 'registered' with the Indian carrier, "EDGE" will appear as "edge" irrespective to OS wipes/books, etc....
Apparently, the mobile provider is blocking use of Storm 9550 & 9520 device model(s).
The only other solution is to contact the carrier directly to confirm if this is in fact true, and what other solution can they provide.
If you have any changes in your issue(s), please reply back.