So, reading through thesw forums, I hear people say you need to jailbreak/unlock devices in order for them to work on the new SIMS? Can I get some clarification about this???
why would promote that you can use their SIMS in ATT devices if you have to tamper with your device in order to get ir running???
Here's the deal. Straight Talk sells both AT&T-compatible SIM cards and T-Mobile-compatible SIM cards. If you have an unlocked phone, you can use either Straight Talk SIM. If your phone is locked to AT&T you have to use their AT&T-compatible SIM. If your phone is locked to T-Mobile, you have to use the SIM compatible with T-Mobile. If your phone is locked to any other provider, you need to unlock it before you can use it with Straight Talk.
iPhones have one extra thing to consider. The MMS settings become locked the moment you insert an AT&T-compatible SIM card. Therefore, you would very likely need to jailbreak in order to get MMS working. Data (and perhaps iMessage) can be made to work without jailbreaking.
Incompatible Phone - Phones that won't work no matter what you try: TracFone, NET10 and SafeLink phones cannot be used with Straight Talk's BYOP SIM cards, or even NET10's BYOP SIM cards. Most Straight Talk-branded phones won't work either -- the Nokia phones could be an exception but this hasn't been tested. BlackBerrys can't be used because they require access to BlackBerry servers from RIM, which Straight Talk doesn't have. Sidekicks will only work for calls and text, because Microsoft killed the data server Sidekicks depended on for data and MMS to work. The only exception is the Sidekick 4G, which runs on Android and should work with Straight Talk's T-Mobile-compatible SIM.
why the **** does the MMS get locked on an iphone? Explain....
I guess that's what I was confused about.
Contrary to popular belief, Apple is still subject to pressure from the carriers as to what they can allow to work on iPhones and what they can't. This is why it took them so long to get tethering and MMS working on the iPhone. While you don't see an ugly AT&T logo or bloatware installed on an iPhone, make no mistake AT&T has gotten their grubby hands on Apple's precious handset. One of the things AT&T likes to do is lock data settings and network selection options so you can't change them. They pressured Apple into locking these settings, just like they have pressured all the other phone manufacturers. Therefore, even on a factory-unlocked iPhone, Apple locks these settings when it detects an AT&T SIM card is installed.
The MMS settings are locked to those used by AT&T Mobility if you use an AT&T Mobility SIM card. It does not mean that MMS does not work with AT&T Mobility.
Many AT&T-branded phones do not have editable browser/MMS settings. They may allow you to create new settings and make them the default. Phone not branded by AT&T will have whatever features which are native to the phone. The AT&T Mobility SIM card may mask the actual network used and show AT&T for all connections.
but why doesn't ATT want people to MMS with their service? I don't get it...
It's not like that. Apple is operating under the assumption that if you put an AT&T SIM card, you need AT&T MMS settings so they configure those for you and as AT&T requires them to, Apple then locks out the settings so you can't change them and "mess up your working AT&T service". This approach works fine for the most part but has one big flaw which is the one affecting us here... Apple's approach doesn't take AT&T-based MVNO's into account, so users of Straight Talk, NET10, H20, Red Pocket and other virtual operators running on AT&T can't get their correct MMS settings to work. Even running off AT&T's network, customers of MVNO's require different data and MMS settings than those required by direct AT&T customers.
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Originally Posted by timmytucker
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