[anjru0805]

I want to temporarily downgrade from my iPhone 4 to my old iPhone 3GS (going on spring break). I thought I could just switch sim cards, but they're different sizes. Anyone know how to do this?

[Brickman]

I want to temporarily downgrade from my iPhone 4 to my old iPhone 3GS (going on spring break). I thought I could just switch sim cards, but they're different sizes. Anyone know how to do this?

You should be able to find an Adaptor to allow the iP4 smaller Sim fit into 3GS. I know of some other people that have done this.

[Totalimmortal363]

Do you know how to use Google?

[Jeremy]

Do you know how to use Google?

Please be respectful to other members. If you don't have a real answer for the OP please don't post.

[BreakingKayfabe]

Do you know how to use Google?

Maybe Google led the OP here.

Here you go OP
Micro Sim to Sim Microsim Card Adapter *USA SELLER* - eBay (item 220674363826 end time Mar-24-11 11:10:27 PDT)

[anjru0805]

Is this the only way to do it?

[BreakingKayfabe]

Is this the only way to do it?

Yes. Only with an adapter.

[toomanyphones]

A micro sim adapter is your safest route. I have seen people making an adapter out of your old sim. I don't know if your carrier allow it but I have used the Rogers web site to switch back to my old sim that was previously tied to the account and back to the micro sim. Be awear that the home made jobie might break off in the sim slot or bend the connecters.

[BreakingKayfabe]

Actually, just walk into an AT&T store and have them give you a normal sized sim.
Just come in with your 3GS and say you need to use it because you screwed up
your i4 or something. They'll give it to you. After that, just get a micro sim again.