SPV M500 problems - can anyone help?

[mj005]

I have just purchased an SPV M500, a brand new 'phone off ebay, unlocked. I wanted this because I leave for Oz on Monday and wanted this to work. I have got my Oz sim card working in it but my Orange contract sim card does not seem to be working in it.

The error just says 'invalid or missing sim card'

I dont get it because the 'phone is branded orange, it was unlocked and accepts an Oz sim card ('yes' Optus) which if I put it in in the UK comes up 'Orange' but my actual Orange sim dont work. Any ideas before the brick wall meets with my head!?

[TheBrit]

I've just upgraded my M500 (it will be appearing on eBay soon) to an M600. The old sim in the M500 is now dead because my account has been transferred to the new one that came with the M600.

Maybe the Orange sim you have there is one that's been cancelled.

[gary wright]

i am having the same problem i got an spv m500 and i have unlocked it but it still says invalid or missing sim card. is there a way to fix this. it is starting to bug me