just a q, does cellc work in iphone 4, just want a simple answer please guys
It will work... but if you want to know if it will work with 3G than the answer is not so simple.
If you bought it in the US like I did, AT&T uses 3G over the 850Mhz band and therefore the US iPhone is a triband 3G phone working on the 850/1900/2100 MHz bands.
MTN and Vodacom are 2100MHz so you will be good with them. But Cell C is operating its 3G service on the 900MHz band so no go for you.
I don't know what bands the South Africa iPhone supports, but it could well be the exact same hardware... so no HSPA+ love for you then.
Anyone with a South Africa iPhone 4 here?