en-us https://www.intensedebate.com/users/950901 Comments by RajVJ http://blog.iphone-dev.org/post/1718400992#IDComment113391052 the baseband 6.15 was from apple's ipad's firmware. which was injected to 3g/3gs iphones to unlock using an knows exploit. Dev team can't change the value like 6.18.xx or anything. . Thu, 2 Dec 2010 18:25:23 +0000 http://blog.iphone-dev.org/post/1718400992#IDComment113391052 http://blog.iphone-dev.org/post/1718400992#IDComment113390505 To all the peoples above who are getting error while restoring "iPhone could not be restored because this device is not eligible for the requested build" The real fact here is Apple has closed signing of 4.1. :( if you have saved your SHSH at 4.1 then use TU and start TSS they try to restoe. Else, you need to first upgrade to 4.2.1 and then use redsnow to upgrade ur baseband to 6.15 and then unlock. Thu, 2 Dec 2010 18:21:54 +0000 http://blog.iphone-dev.org/post/1718400992#IDComment113390505 http://blog.iphone-dev.org/post/1359246784#IDComment105153098 I had the same exact problem with my 3gs. The problem with my was, iTunes. I had 9.2. I upgraded to 10.1 (Latest) and worked like charm. So, this may the cause in your case. Upgrade to iTunes 10.1 if not already done. Thu, 21 Oct 2010 03:27:13 +0000 http://blog.iphone-dev.org/post/1359246784#IDComment105153098 http://blog.iphone-dev.org/post/1197198297#IDComment101665108 Do you mean you are the 1000000000001th fool to update to 4.1 in spite of warning / alert notification not to do it. Thu, 30 Sep 2010 16:46:11 +0000 http://blog.iphone-dev.org/post/1197198297#IDComment101665108 http://blog.iphone-dev.org/post/1086032828#IDComment99930193 The wise man won't listen to bad things. So, read and understand positive comments only. :) Mon, 20 Sep 2010 15:07:55 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment99930193 http://blog.iphone-dev.org/post/1086032828#IDComment99928786 Yes. No harm if you do so, Mon, 20 Sep 2010 15:03:02 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment99928786 http://blog.iphone-dev.org/post/1086032828#IDComment99928167 That's because, apple stopped signing 4.0.1 long back. Anyway, what is the current firmware version you are on? do you jailbreak/unlock? Answers to these questions would be easier to help you with.. Mon, 20 Sep 2010 15:00:52 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment99928167 http://blog.iphone-dev.org/post/1086032828#IDComment99378704 You should read the log when you click on "Save My SHSH". It clearly tells you that its too late to save SHSH for the versions you selected. So, its too late and there is no way you could save shsh for 4.0.2 or below. Fri, 17 Sep 2010 15:08:10 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment99378704 http://blog.iphone-dev.org/post/1086032828#IDComment98959492 I remember that he also said that there will be no major difference between 4.1 and 4.2. Will see what comes ahead. Wed, 15 Sep 2010 17:27:13 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98959492 http://blog.iphone-dev.org/post/1086032828#IDComment98958604 Don't you follow a generic process/rule - "READ CAREFULLY BEFORE YOU USE"... Wed, 15 Sep 2010 17:23:56 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98958604 http://blog.iphone-dev.org/post/1086032828#IDComment98955875 Apple stopped signing shsh for 4.0.1 long ago. so, there is no way now to save shsh by any ways. Wed, 15 Sep 2010 17:12:45 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98955875 http://blog.iphone-dev.org/post/1086032828#IDComment98951374 OH YES. I didn't think this way. Thanks anyway! Wed, 15 Sep 2010 16:56:56 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98951374 http://blog.iphone-dev.org/post/1086032828#IDComment98946984 as scary2 said, give a shot by resetting "network settings" only and see if works out. This is the first step to troubleshoot the issue. Wed, 15 Sep 2010 16:39:56 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98946984 http://blog.iphone-dev.org/post/1086032828#IDComment98946521 Dev Team warned well in advance to not to upgrade to 4.1 They never said they are working on unlock. Wed, 15 Sep 2010 16:37:52 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98946521 http://blog.iphone-dev.org/post/1086032828#IDComment98945114 There is no harm to upgrade to 4.1 if you really want to use the new features. However, I would suggest you to use TU to upgrade to 4.1 for baseband protection. Just so that in any case if need to unlock your iphone in future, you have kept you baseband protected for it. Wed, 15 Sep 2010 16:32:55 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98945114 http://blog.iphone-dev.org/post/1086032828#IDComment98936096 Again you cannot downgrade to 3.1.3 if you don't have SHSH. And also 3.1.3 need a sim from original carrier or phone book sim to to activate / pass the emergency screen. Check out if you could barrow sim from your friend for activation. Wed, 15 Sep 2010 16:00:32 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98936096 http://blog.iphone-dev.org/post/1086032828#IDComment98732326 Also, select "Cydia" option from "Request From:". because saving SHSH from Apple is closed for 4.0.1 & 4.0.2 Tue, 14 Sep 2010 15:56:35 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98732326 http://blog.iphone-dev.org/post/1086032828#IDComment98730733 Yes. You are correct. And, if you need to install any app's outside of App Store, it should be JB's. and Currently we don't have JB for 4.1. So, if you are planning to have some app's, then don't update as of now. Tue, 14 Sep 2010 15:46:52 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98730733 http://blog.iphone-dev.org/post/1086032828#IDComment98730311 If you can't contribute towards positive, they keeping silent is better then speaking negetive. Tue, 14 Sep 2010 15:43:39 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98730311 http://blog.iphone-dev.org/post/1086032828#IDComment98729718 you are always welcome. Tue, 14 Sep 2010 15:39:18 +0000 http://blog.iphone-dev.org/post/1086032828#IDComment98729718