You can, but it requires some work. I'll find the thread that explains it, give me a sec....
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Downgrading
- Thread starter lilkeke
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You can, but it requires some work. I'll find the thread that explains it, give me a sec....
OK, so just to be clear... I can jailbreak my virgin 3.1.3/05.12.01 with redsnow 0.9.4 if I point it to the 3.1.2 firmware. The result will be a jailbreak but not an unlock. As long as I am an AT&T US customer, then this works?
Here is the post about prepaid sims (I can't figure out how to link to a certain post, not a whole thread)
Ok first, all 3G and 3GS iPhone will work with ANY AT&T sim card and will activate with no problems.
There is a requirement that AT&T started last summer that can lock the sim to the original phone in which it was activated for about 6 months. This happens only if the GoPhone was activated with the original sim that it came with IF it included bonus airtime credit such as $15 or even $50. If you try and use this sim in the iPhone, it will not activate and you will not get service until the 6 months is over.
To get past this, you can simply go to AT&T and tell them you either lost the sim or damaged it and they will activate a new one for you. You can now take that sim and put it in the iPhone.
Data can also work with the prepaid sim and you will need a modified carrier file uploaded to the phone if you want to access the net. You can buy data packages on prepaid, 1MB for $5 or 100MB for $19.99. If you want to use data on your phone, on your phone using Safari, go to http://www.unlockit.co.nz/#_Custom and find the AT&T carrier and upload the update to your phone, it's very easy to do. Reboot the phone and data will now work on the phone.
MMS will also work on the 3G and 3GS phones without doing any mods to the phone and you don't have to have a data plan to send MMS. AT&T has data enabled on all GoPhone by default (pay per use) so MMS will always work as long as you have a texting package such as 200 for $5.00 or unlimited for $20.
If you are using firmware version 2.2.1 on your 3G, you don't need the carrier file to use data, it will just work but the iPhone will need to be unlocked to use the GoPhone sim.
If you are using firmware 3.0 and above, the phone needs the carrier file I listed above to use data but the phone doesn't need to be unlocked and will activate with any AT&T sim.
To use a GoPhone sim in the original iPhone, the phone needs to be unlocked.
Hope this helps!
Ok first, all 3G and 3GS iPhone will work with ANY AT&T sim card and will activate with no problems.
There is a requirement that AT&T started last summer that can lock the sim to the original phone in which it was activated for about 6 months. This happens only if the GoPhone was activated with the original sim that it came with IF it included bonus airtime credit such as $15 or even $50. If you try and use this sim in the iPhone, it will not activate and you will not get service until the 6 months is over.
To get past this, you can simply go to AT&T and tell them you either lost the sim or damaged it and they will activate a new one for you. You can now take that sim and put it in the iPhone.
Data can also work with the prepaid sim and you will need a modified carrier file uploaded to the phone if you want to access the net. You can buy data packages on prepaid, 1MB for $5 or 100MB for $19.99. If you want to use data on your phone, on your phone using Safari, go to http://www.unlockit.co.nz/#_Custom and find the AT&T carrier and upload the update to your phone, it's very easy to do. Reboot the phone and data will now work on the phone.
MMS will also work on the 3G and 3GS phones without doing any mods to the phone and you don't have to have a data plan to send MMS. AT&T has data enabled on all GoPhone by default (pay per use) so MMS will always work as long as you have a texting package such as 200 for $5.00 or unlimited for $20.
If you are using firmware version 2.2.1 on your 3G, you don't need the carrier file to use data, it will just work but the iPhone will need to be unlocked to use the GoPhone sim.
If you are using firmware 3.0 and above, the phone needs the carrier file I listed above to use data but the phone doesn't need to be unlocked and will activate with any AT&T sim.
To use a GoPhone sim in the original iPhone, the phone needs to be unlocked.
Hope this helps!
YAY!!! Glad it worked!
can i just go to walmart buy one of the att phones with the sim for 20 bucks?
You're welcome, glad I could help
Hey, I downloaded the nba league pass and it wouldnt work i pressed to watch a live game and it would just go back to the main stats on the app.. then i download text free unlimited then it said im using an unlicensed version! Its all slow im downloading at 20 kb a sec.. when my sisters is downloading at 140 kb/s.. all the apps are freezing and crap...
@lilkeke....
So, what was the final verdict? I stopped my attempt after seeing your issue. Did you retry, revert back to manuf 3.1.3 ??
So, what was the final verdict? I stopped my attempt after seeing your issue. Did you retry, revert back to manuf 3.1.3 ??
@all
So lilkeke went astray.. if I try this same thing, virgin 3.1.3/05 downgrade with redsnow... would their be any problem recovering it from an iTunes backup if things go wrong?
So lilkeke went astray.. if I try this same thing, virgin 3.1.3/05 downgrade with redsnow... would their be any problem recovering it from an iTunes backup if things go wrong?
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