can a Tesco SIM be used in a Samsung Galaxy Ace 2 on O2 PAYG?

[Anonymous]

Can anyone please confirm whether a Tesco SIM will work in a (yet to be purchased) Samsung Galaxy Ace 2 locked to O2 PAYG?  The deal for a locked phone on O2 is good at £140, but I want to keep my cheaper call rates on Tesco.  An unlocked phone is about £40 more through other sellers.  Thanks!

[MI5 · Accepted solution]

I know you can't use an o2 SIM in a Tesco PAYG phone so I assume it be the same the other way around. PAYG phones tend to be simlocked so the networks can recoup the costs of subsidising the handset.

[Anonymous]

I have read that what you say is correct, but also seen speculation that it does work the other way round, i.e. Tesco SIM in O2 locked phone, but none of these postings on other forums seemed recent.  So was hoping someone with recent experience could advise.  I don't have an O2 shop near me so I'd be buying on the net.  Thanks.

[Anonymous]

couple of months ago i put a tesco sim in a blackbery curve which was on o2 p&g and all is well.