5210 Twin Sim Battery

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Andy Laycock - 30 Apr 2004 18:39 GMT

Been looking for a cheap 5210 twin sim battery and I've found some on
ebay.co.uk that allow you to change between sim cards by typing in *3370#.
I've only seen ones where you have to turn the phone on and off. Are these
any good?

Info at
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=42406&item=4185540203&rd=1

Cheers

Andy

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Tim Downie - 30 Apr 2004 20:07 GMT

> Been looking for a cheap 5210 twin sim battery and I've found some on
> ebay.co.uk that allow you to change between sim cards by typing in *3370#.
> I've only seen ones where you have to turn the phone on and off. Are these
> any good?

I got one lke that for my 3330. It works fine for switching from O2 to
Orange but if I want to switch back, I have to turn off then on again.
Don't know whether it's a glitch with the device, my phone or my orange sim
(which is a pretty old Just Talk one).

Tim

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Steve Terry - 30 Apr 2004 20:10 GMT

> > Been looking for a cheap 5210 twin sim battery and I've found some on
> > ebay.co.uk that allow you to change between sim cards by typing in *3370#.
[quoted text clipped - 6 lines]
> (which is a pretty old Just Talk one).
> Tim

Nope, it's Orange Sims, they won't switch when switching EFR *3370#

Steve Terry

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Rob - 30 Apr 2004 21:17 GMT

> Been looking for a cheap 5210 twin sim battery and I've found some on
> ebay.co.uk that allow you to change between sim cards by typing in
> *3370#. I've only seen ones where you have to turn the phone on and
> off. Are these any good?
>
> Andy

Any Twin SIM that changes by switching on and off will work with the *3370#
trick. *3370# is the EFR enable code and one of the effects of using it is
the phone reboots , i.e. switches if off and back on again.

It won't work with Orange SIMs though, they have this disabled.

Rob

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