Found 19th Mar 2011
Hi guys,

I've bought a 2nd hand Iphone 3gs, and i'm pretty new to it all.

I currently use a tesco sim only 500mins etc £10 a month.

The phone I bought is on o2, and works with my spare o2 sim card, however when I put the tesco one in, it comes up with 1 bar of signal, but doesn't find a network.

Can anyone explain this?

Is it possible to unlock this using a program?



  1. Misc
  2. iPhone
  1. Misc
  2. iPhone

Tesco sims wont work on 02 phones but the opposite way round an 02 sim will work on a tesco phone ............because tesco use 02s network

Original Poster

on my other iphone which is only open to o2.

My tesco sim works completely on that,

op, top up your o2 sim with £15 and o2 will unlock it for u
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