I use to be on Tesco Mobile before changing to GiffGaff, but my LG Cookie Fresh GS290 won't allow me to delete the default Tesco network settings, how do I do this?
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Tesco phones are usually locked even though they run on O2 some cant be used on giffgaff so this may be your problem. Otherwise if it is unlocked, can you edit the tesco settings to have the giffgaff settings?
My phone is already completely unlocked