[gaia] SIM-locked phone

[Fernando Pereira Silveira]

Can anyone explain what is *exactly* a SIM-locked phone? What kind of lock is this?

[Michael Bauer]

I believe that's a phone where the SIM is tied to a certain provider,
for example if you buy an iPhone in Germany, it's tied to a TMobile
contract and won't work if you stick in a SIM from another carrier
unless you "unlock". I think it normally voids the warranty.

Michael

15/04/2013 21:32, sgrìobh Fernando Pereira Silveira:
> Can anyone explain what is*exactly* a SIM-locked phone? What kind of lock is this?

--
*Akerbeltz <http://www.faclair.com/>*
Goireasan Gàidhlig air an lìon
Fòn: +44-141-946 4437
Facs: +44-141-945 2701

*Tha Gàidhlig aig a' choimpiutair agad, siuthad, feuch e!*
Iomadh rud eadar prògraman oifis, brabhsairean, predictive texting,
geamannan is mòran a bharrachd. Tadhail oirnn aig www.iGàidhlig.net
<http://www.iGaidhlig.net/>

[Fernando Pereira Silveira]

What about "service provider locked" and "corporate locked"?

[Francesco Lodolo [:flod]]

Il 07/05/13 04:19, Fernando Pereira Silveira ha scritto:

> What about "service provider locked" and "corporate locked"?

1. Service provider lock -- uses the group identifier on the SIM/USIM
to lock the phone to a specific service provider.
2. Corporate lock -- uses the group identifier to lock the phone to
SIM/USIM cards that belong to a specific company.
3. SIM lock -- locks the phone to a specific SIM/USIM card.

(source
http://www.ericsson.com/ericsson/corpinfo/publications/review/2006_02/files/mobile_platform_security.pdf)

So, as far as I understand it:

1. you can use any SIM from provider X (e.g. TMobile)
2. you can use any SIM belonging to a specific company (e.g. Mozilla,
not the network operator)
3. you can use only 1 SIM with that phone

Francesco

[Fernando Pereira Silveira]

Thanks Francesco! ;-)