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Hi, I have a jailbroken (untethered) unlocked iPhone 3GS (old bootrom) running on iPad baseband 06.15. I was wondering if I can upgrade my iPhone to iOS 5. Ofcource, I would still want my phone to be jailbroken and unlocked, as it is right now. I have not been able to keep myself updated with the latest in the world of jailbreak and unlocking but I saw that redsn0w is available for iOS 5 but I am not sure how to upgrade my device to iOS 5 and then jailbrake and unlock it. Kindly help!

Thanks

asked 11 Jun '12, 02:51

ujjwal_26's gravatar image

ujjwal_26
6719


yes, you can go for iOS 5 ... make a custom IPSW through redsnow and then install it through iTunes Restore ... yes there is ultrasnow compatibility for iOS 5 too ... install ultrasnow .. you are good to go then .. however, the performance of 3GS is not that good on iOS 5 ... if you can bear a bit of laggy firmware .. then go for it

link

answered 11 Jun '12, 07:26

abdullahkamran's gravatar image

abdullahkamran
2799617

edited 11 Jun '12, 12:41

theiphoneguy's gravatar image

theiphoneguy ♦
42.1k65420

Thanks for your reply. I saw that ultrasn0w 1.2.7 supports unlock of devices running iOS 5.1.1. (http://www.redmondpie.com/unlock-ios-5.1.1-with-ultrasn0w-1.2.7-old-basebands-only/). It does not mention the installation of any "fixer for 5.1.1" as you mention in your answer above. Please confirm. Regarding the lag, I am not sure if I would be interested to upgrade if there is a lot of lag. I mean, it should be usable first more than running latest firmware. How has your experience been with the performance?

(11 Jun '12, 07:44) ujjwal_26 ujjwal_26's gravatar image

Edited - Fixer is not needed

(11 Jun '12, 12:31) abdullahkamran abdullahkamran's gravatar image
1

ultrasn0w fixer is NOT needed. Ultrasn0w 1.2.7 supports 5.1.1

(11 Jun '12, 12:42) theiphoneguy ♦ theiphoneguy's gravatar image

Ok. Thanks for your replies. I tried to generate custom ipsw using redsn0w and got the error "Memory exhausted". Has anyone faced this error? How to resolve this? Still awaiting some response on the performance of 5.1.1 on 3gs. Thanks

(12 Jun '12, 06:24) ujjwal_26 ujjwal_26's gravatar image

@theiphoneguy it was two weeks ago when i did that so i guess i was wrong .. thanks

@ujjwal_26 did you use the latest version of redsnow?

(12 Jun '12, 12:29) abdullahkamran abdullahkamran's gravatar image

Yes. I used the latest version of redsnow (redsn0w_win_0.9.12b2).

(13 Jun '12, 02:49) ujjwal_26 ujjwal_26's gravatar image

ultrasn0w hasnt been updated that long. when you did yours the fixer was needed

(13 Jun '12, 03:02) theiphoneguy ♦ theiphoneguy's gravatar image

Try snowbreeze to make custom firmware if using windows

(13 Jun '12, 05:49) Crowie85 Crowie85's gravatar image
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Asked: 11 Jun '12, 02:51

Seen: 1,674 times

Last updated: 13 Jun '12, 05:49

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