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ryanwarsaw

macrumors 68030
Original poster
Apr 7, 2007
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I think the answer to this should be yes but I never tried it. I just want to use my iPhone SIM on my HTC touch HD that came today to test if it will make calls, tether, etc. Is there any reason I can't do this? I am on O2 UK if that matters.
 
Okay cool, that's what I figured. Just don't want O2 to give me grief or something. I am still paying them their blood money so they really shouldn't care.

Thanks
 
As long as the phones are on the same network(if they're both locked), then i think it should be no problem.
Is it even possible to lock a sim into a particular phone model, so it couldn't be used in another phone, even if that phone was locked into the same network(or unlocked)?
 
Is it even possible to lock a sim into a particular phone model, so it couldn't be used in another phone, even if that phone was locked into the same network(or unlocked)?

Yes. In the US, you can only use a SIM in an iPhone that was activated in an iPhone on an iPhone plan. You can put that SIM in other (unlocked or AT&T) phones, but you cannot put another (AT&T) SIM into an iPhone and have it work.

(disregarding unlock/jailbreak situations)
 
Yes. In the US, you can only use a SIM in an iPhone that was activated in an iPhone on an iPhone plan. You can put that SIM in other (unlocked or AT&T) phones, but you cannot put another (AT&T) SIM into an iPhone and have it work.

(disregarding unlock/jailbreak situations)

I disagree, Had my Motorolla razr for...2 years occasionaly switching with an N91.. My cousin gave me the iPhone this past August. I just put the SIM in and activated, and it worked fine.
 
If its a 3G SIM card you can. I have a 3G SIM card ever since I got my first phone( the razr), and I can switch it with my brothers 3G iPhone anytime.
 
Anyway it worked. I also discovered the entire area I live in has great 3G coverage. I never got 3G ever anywhere in this town so mistakenly assumed the town wasn't covered. In the HTC I got great signal and speed everywhere I go around here LOL. It also gave me a chance to find out that my new MBP says I have no bluetooth when I click under info.

Funny the things you notice when you get a phone that doesn't have crippled bluetooth. Had I not bought a new phone to use for tethering I may have never discovered that my area is wall to wall 3G coverage or that my bluetooth on my MBP was faulty

That means that one unhappy man, 2 iPhones and a MBP are going to go see the people at the Apple store for replacements.
 
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