Going to US. Would like some advice about prepaid SIM (preferably micro SIM)

Discussion in 'iPhone' started by Susurs, Nov 26, 2010.

  1. Susurs macrumors 6502a


    Jun 18, 2010
    I'm going to US and will take my iPhone 4 with me.
    My local operator charges a lot for roaming (about $2.5 for incoming calls per minute, $1.5 for local outgoing, $2.5 outgoing to my country, $0.5 for an SMS and $15 for 1Mb :eek: ) so maybe somebody could advise me if there is some prepaid SIM (preferably Micro SIM but I can "make" it "micro" myself as well) so I can make local calls (to AT&T mostly) and send some international SMS for less than those prices I wrote.

    Thank you :)
  2. eastercat macrumors 68040


    Mar 3, 2008
    First things first: is your phone locked or not? If it is factory unlocked, you can pop in any SIM card.
    If it is locked, what is the modem firmware (a.k.a., baseband) on your phone?
    If it is higher than 1.59, you won't be able to use a jailbreak/software unlock. No, you can not downgrade the baseband. Basebands are immovable.

  3. Susurs thread starter macrumors 6502a


    Jun 18, 2010

Share This Page