Ultrasn0w for LOCKED iPhone 3G/3GS/4, v1.2.1 available | Supports iOS 4.3.1
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 Feb 20 2012, 09:39 AM
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#1
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Junior Member
19 posts Joined: Mar 2007 
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I updated iphone 3G(3.1.2) to 4.2.1
It's a locked phone from Japan. After updating, I tried to jailbreak it. Everything works fine until this step  After I clicked NEXT, the program closed by itself. I can never get to install cydia no matter how times i've tried. And now the phone is on emergency mode.  Anyone can help me on this? thanks. This post has been edited by teep: Feb 20 2012, 10:11 AM |
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Feb 20 2012, 12:39 PM
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#2
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Junior Member
19 posts Joined: Mar 2007
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How to preserve the baseband?
Added on February 20, 2012, 12:48 pmI just follow the steps... select the firmware, install cydia, get into DFU mode, etc. But it din ask me to upgrade the baseband. when the redsnow began uploading the new RAM Disk and Kernel, it will close by itself. This post has been edited by teep: Feb 20 2012, 12:48 PM |
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Feb 20 2012, 01:33 PM
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#3
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Junior Member
19 posts Joined: Mar 2007
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QUOTE(azraeil @ Feb 20 2012, 12:56 PM) I think it's already too late if you have already updated to 4.2.1 using stock firmware previously (or if you update via iTunes). I downloaded the firmware from web which provide step by step tutorial and used redsn0w 0.9.10b3. As for redsn0w crashing .... you need to download the latest version of redsn0w for the 3G, if I'm not mistaken, it's redsn0w 0.9.6b5 (this version number is important as the latest latest for others is 0.9.10b5c)  What can I do now?? buy new iphone haha. Please help. This post has been edited by teep: Feb 20 2012, 01:44 PM |
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Feb 20 2012, 02:09 PM
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#4
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Junior Member
19 posts Joined: Mar 2007
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QUOTE(azraeil @ Feb 20 2012, 02:03 PM) You cannot use 0.9.10b3 for the 3G. You need to use 0.9.6b5 OMG. I didn't know. So, nothing can be done now?Can downgrade it? |
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Feb 20 2012, 02:21 PM
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#5
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Junior Member
19 posts Joined: Mar 2007
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QUOTE(azraeil @ Feb 20 2012, 02:13 PM) I'm not sure if you can downgrade the baseband for the 3G. As for firmware, you an always downgrade as the 3G downgrading process is simpler and you do not require the SHSH. If you have a certain type of 3G iPhone, the baseband can be downgraded using Fuzzyband. I'll get some info to let you know. Thank you so much for your help. |
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Feb 20 2012, 02:43 PM
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#6
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Junior Member
19 posts Joined: Mar 2007
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QUOTE(azraeil @ Feb 20 2012, 02:38 PM) These are the things you need I can only try to do it after work.1. Your 3G MUST BE on bootloader 5.08 to be able to downgrade the baseband. If it's not on 5.08 bootloader, then your only choice is to use an iPad baseband 6.15.00 (more on this once you confirmed what kind of bootloader you have) 2. You must be able to jailbreak the 3G on 4.2.1 first and you need to do this properly. You must use the proper redsn0w version. Follow the guide from modmyi here http://modmyi.com/forums/how-jailbreak-gui...-6-windows.html Use redsn0w 0.9.6rc19 which should work on the 3G on 4.2.1 Once you have successfully jailbroken the iPhone ... let me know. Can I PM you after i've done it, if i have any problem? Thank you so so much. This post has been edited by teep: Feb 20 2012, 02:47 PM |
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Feb 20 2012, 03:02 PM
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#7
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Junior Member
19 posts Joined: Mar 2007
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QUOTE(azraeil @ Feb 20 2012, 02:53 PM) Checking your bootloader version is not straight forward .... here's the guide from iClarified Sorry, I'm a little confused. Should I do the jailbreaking 1st or check the bootloader 1st? http://www.iclarified.com/entry/index.php?enid=3570  |
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Feb 20 2012, 03:13 PM
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#8
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Junior Member
19 posts Joined: Mar 2007
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QUOTE(azraeil @ Feb 20 2012, 03:09 PM) In your case, you should make sure that the phone is successfully jailbroken first. Alright.Added on February 20, 2012, 7:10 pm QUOTE(azraeil @ Feb 20 2012, 03:09 PM) In your case, you should make sure that the phone is successfully jailbroken first. I've successfully jailbroken my phone. now it's Version is 4.2.1 Modem firmware is 05.15.04 But Carrier not available. Added on February 20, 2012, 8:29 pmOopss...i have a 05.09 bootloader I cant downgrade the baseband.  This post has been edited by teep: Feb 20 2012, 08:29 PM |
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