I've picked up a second-hand Lumia 520 on Trademe, to replace my old damaged one. The seller insists that it was running on Spark, but my Spark sim doesn't work in it. It actually had a Telecom sim in it when it arrived in the mail this morning, so I have no reason to doubt the seller, and I did double-check with him.
So what else can be the problem? The phone is in good condition, certainly a lot better than my old one:) It recognises my sim, it just won't find the network. When I go to 'Access Point' it shows Telecom NZ as active, and Skinny as inactive -- just like my old one. However when I go to Mobile+SIM; SIM-settings: Network Selection it only shows Vodafone and 2 Degrees, which kinda suggests that this is not a Spark phone.