Can I unlock my Canadian iphone for overseas?

[newbie4truth]

Hi, all. Am eligible for an upgrade to an iphone with Bell. I travel quite frequently overseas, and want to unlock my Canadian iphone (likely the 3G) so I can pop in a pre-paid SIM when in Asia/Australia/Europe. I have heard that doing this means when I get back home, my old Canadian SIM will not be recognized.

Thoughts?

 

[greemie]

If it's on 3.1.2 firmware or lower, you can unlock it.

 

[newbie4truth]

Thanks...but does anyone know if I will have issues when returning to Canada and putting in my old SIM? Will it be recognized without problems?

 

[etceteraism]

No issue. I'm with Fido (using unlocked iPhone) and travelled to Scotland where I used a SIM card from Orange during my trip. Came home and popped my Fido SIM back in, no problems whatsoever.