Question about iPhone 3GS and tethered boot

[Agent-P]

First off, I decided to post this here rather than the hacks section simply due to it would be seen by more people here. However if the mods feel it is more appropriate in the hacks section, then go ahead and move it.

I have an iPhone 3GS running iOS 5.0.1 with baseband 6.15.00. I have it unlocked, so I needed to preserve the baseband when upgrading from 4.3.3. I used a custom IPSW which was already jailbroken and activated in order to upgrade. However it was a tethered jailbreak. The current method for jailbreaking iOS 5.0.1 allows for an untethered jailbreak. Would it be possible for me to just use redsn0w to rejailbreak my device, and just not install Cydia when redsn0w asks me to? Or would that cause issues with my device?

 

[Applejuiced]

First off, I decided to post this here rather than the hacks section simply due to it would be seen by more people here. However if the mods feel it is more appropriate in the hacks section, then go ahead and move it.

I have an iPhone 3GS running iOS 5.0.1 with baseband 6.15.00. I have it unlocked, so I needed to preserve the baseband when upgrading from 4.3.3. I used a custom IPSW which was already jailbroken and activated in order to upgrade. However it was a tethered jailbreak. The current method for jailbreaking iOS 5.0.1 allows for an untethered jailbreak. Would it be possible for me to just use redsn0w to rejailbreak my device, and just not install Cydia when redsn0w asks me to? Or would that cause issues with my device?

You will have to create a custom ipsw with redsnow to update to 5.0.1
Not sure if you're asking to stay on 4.3.3 and just untether your JB or update to JB 5.0.1?

 

[DerekRod]

No see the 6.15 baseband is the iPad baseband your not preserving per se you just cant update the official way you need a custom 5.0.1 ipsw made via redsn0w and 5.0.1 is untethered for all devices (3GS,4,4S,iPad and iPad 2) so it really doesnt matter update with the custom IPSW and just install cydia and you should be untethered and fine.never update with iTunes.

 

[Agent-P]

You will have to create a custom ipsw with redsnow to update to 5.0.1
Not sure if you're asking to stay on 4.3.3 and just untether your JB or update to JB 5.0.1?

No see the 6.15 baseband is the iPad baseband your not preserving per se you just cant update the official way you need a custom 5.0.1 ipsw made via redsn0w and 5.0.1 is untethered for all devices (3GS,4,4S,iPad and iPad 2) so it really doesnt matter update with the custom IPSW and just install cydia and you should be untethered and fine.never update with iTunes.

So would I encounter any issues if I took this route:

I first backup to iCloud.
Then I use redsn0w to create a custom IPSW for 5.0.1
I then install this custom IPSW in iTunes.
Then once I set it up, I restore from iCloud.
Then I can jailbreak/unlock and be happy.


If I'm understanding correctly, then the above should work.

One question I have is how will I activate the iPhone on iOS 5? I don't have an AT&T sim. I have it unlocked and I only have my T-Mobile sim. How could I get around this issue?

 

[Applejuiced]

So would I encounter any issues if I took this route:

I first backup to iCloud.
Then I use redsn0w to create a custom IPSW for 5.0.1
I then install this custom IPSW in iTunes.
Then once I set it up, I restore from iCloud.
Then I can jailbreak/unlock and be happy.


If I'm understanding correctly, then the above should work.

One question I have is how will I activate the iPhone on iOS 5? I don't have an AT&T sim. I have it unlocked and I only have my T-Mobile sim. How could I get around this issue?

Yes, your steps are correct.
You will need an AT&T sim to activate it and get into the homescreen in order to open cydia and install ultrasnow to unlock.
You can use any old and deactivated AT&T sim or prepaid AT&T gophone sim.
You can even buy one on ebay for $1-2 or borrow a friends for a minute.

 

[Agent-P]

Yes, your steps are correct.
You will need an AT&T sim to activate it and get into the homescreen in order to open cydia and install ultrasnow to unlock.
You can use any old and deactivated AT&T sim or prepaid AT&T gophone sim.
You can even buy one on ebay for $1-2 or borrow a friends for a minute.

Alright, looks like I'll be looking for an AT&T sim now. Thanks for your help.

 

[durruti]

or u could use "Pwnge Tool" and create a custom ipsw with the corresponding baseband (fyi, you can not downgrade your baseband, for unlocking purposes it's usually best to keep older baseband versions), and iOS you want to use.

Make sure when you create the custom ipsw, you configure it to jailbreak/unlock/activate etc.

Then finally alt/option restore the custom *.ipsw in iTunes.

This way you can skip the step of finding an AT&T SIM to activate.

 

[Agent-P]

or u could use "Pwnge Tool" and create a custom ipsw with the corresponding baseband (fyi, you can not downgrade your baseband, for unlocking purposes it's usually best to keep older baseband versions), and iOS you want to use.

Make sure when you create the custom ipsw, you configure it to jailbreak/unlock/activate etc.

Then finally alt/option restore the custom *.ipsw in iTunes.

This way you can skip the step of finding an AT&T SIM to activate.

So essentially the steps in this guide? That would be great if I didn't have to track down an AT&T sim (all my friends are on Verizon).

http://www.iclarified.com/entry/index.php?enid=19017

 

[Applejuiced]

or u could use "Pwnge Tool" and create a custom ipsw with the corresponding baseband (fyi, you can not downgrade your baseband, for unlocking purposes it's usually best to keep older baseband versions), and iOS you want to use.

Make sure when you create the custom ipsw, you configure it to jailbreak/unlock/activate etc.

Then finally alt/option restore the custom *.ipsw in iTunes.

This way you can skip the step of finding an AT&T SIM to activate.

Not 100% but I don't think pwnage or any tool currently hactivates 5.0.1

 

[DerekRod]

or u could use "Pwnge Tool" and create a custom ipsw with the corresponding baseband (fyi, you can not downgrade your baseband, for unlocking purposes it's usually best to keep older baseband versions), and iOS you want to use.

Make sure when you create the custom ipsw, you configure it to jailbreak/unlock/activate etc.

Then finally alt/option restore the custom *.ipsw in iTunes.

This way you can skip the step of finding an AT&T SIM to activate.

Hes on the iPad baseband hes stuck there lol

Not 100% but I don't think pwnage or any tool currently hactivates 5.0.1

Redsn0w should hacktivate 5.0.1

 

[Agent-P]

Redsn0w should hacktivate 5.0.1

I haven't found the option anywhere in redsn0w.

 

[DerekRod]

I haven't found the option anywhere in redsn0w.

When you jailbreak it it should hacktivate it if you have baseband 6.15 just put your sim card in and your good to go

 

[Agent-P]

When you jailbreak it it should hacktivate it if you have baseband 6.15 just put your sim card in and your good to go

That may be why I didn't see the option. I didn't use redsn0w to jailbreak. I guess after I make my custom IPSW and restore to stock I'll be using redsn0w to jailbreak. After I hit the jailbreak button, it'll give me the option to hacktivate it, right?

 

[Applejuiced]

That may be why I didn't see the option. I didn't use redsn0w to jailbreak. I guess after I make my custom IPSW and restore to stock I'll be using redsn0w to jailbreak. After I hit the jailbreak button, it'll give me the option to hacktivate it, right?

It wont give you an option.
If the phone is not activated when you run redsnow it usually hactivates it and gets you in to the homescreen.
If it doesnt then you know you will need a sim.
I heard for the latest 5.0.1 it doesnt but Im not positive.
You will know either way as soon as you run it. If you're still at the connect to itunes and asks you for a sim then you know what's up.

 

[Agent-P]

It wont give you an option.
If the phone is not activated when you run redsnow it usually hactivates it and gets you in to the homescreen.
If it doesnt then you know you will need a sim.
I heard for the latest 5.0.1 it doesnt but Im not positive.
You will know either way as soon as you run it. If you're still at the connect to itunes and asks you for a sim then you know what's up.

Alright, seems simple enough. If I need to, I'll just pick up a cheap Gophone and use the sim from there. If not, then great. Thanks for your (and anyone else who answered) help.