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Wannabe Geek

Topic # 193588 16-Mar-2016 09:37
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Hello.  I have a 13 year old cell phone with a 13 year old Vodafone prepaid (mini) SIM card.  Have been working perfectly all the time, and of course it is on 2G/GSM.

A couple of weeks ago I acquired a new mobile which uses micro SIM.  So I did a SIM swap. 


The new SIM works fine on 3G, but not on 2G/GSM.  I always get "no service" if I choose 2G/GSM.  I put the new SIM back on the 13 old 2G phone and same thing, no service.

I am very keen on getting the 2G/GSM connection as eventually I want to use a dual SIM phone, with secondary SIM on GSM.

Wondering if anyone has seen this before?


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Uber Geek
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  Reply # 1514252 16-Mar-2016 10:14
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 It's possible an off the shelf new SIM card will work in a 13yr old phone due to the different voltages of the SIM cards.



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  Reply # 1514491 16-Mar-2016 14:00
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Interesting. Vodafone just announced they plan to shut down the 2G GSM service to voice users. Do you think they are going to start restricting access to GSM when a sim card upgrade is done?

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  Reply # 1514494 16-Mar-2016 14:06
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andrewcnz: Interesting. Vodafone just announced they plan to shut down the 2G GSM service to voice users. Do you think they are going to start restricting access to GSM when a sim card upgrade is done?
does that mean I wont be able to call people on 2g with my vodafone phone.  Just at home 2G is all i have. All around 3G is available but we are in a blind spot

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