hi! i've just gotten a payg sim from o2, with a tariff on it & all works completely fine when using with my iPhone 12. however, the plan was to use this sim with my Nokia 6700, which works fine with other sims but apparently not this one. upon turning the phone on, i'm met with a "Sim card Invalid" message, which i cant bypass. ive tried other sim cards which seem to be working. does anyone have any advice?
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