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Hi, I want to jailbreak an iPhone 4 via a custom IPSW. But redsn0w fails to build a custom ISPW of this (iPhone3,1_5.0.1_9A405_Restore.ipsw) file with the error "Custom ISPW creation failed. cannot close compressed file in IPSW". PwnageTool fails with the error message: Wrong firmware chosen. Any help? Thanks in advance, Shaun.

asked 07 Mar '12, 04:06

_Shaun_'s gravatar image


Is the firmware file a .ipsw or .zip? If you have downloded with IE you will need to change it to .ipsw


answered 07 Mar '12, 04:15

therealcmac's gravatar image


It's .ispw-file, downloaded with a downloader ("speed download") from,1_5.0.1_9A405_Restore.ipsw. Downloaded via Safari produced exactly the same error...

(07 Mar '12, 04:18) _Shaun_ _Shaun_'s gravatar image

using the latest redsnow?

(07 Mar '12, 04:21) therealcmac therealcmac's gravatar image

jep: redsnow 0.9.10b5c

(07 Mar '12, 05:35) _Shaun_ _Shaun_'s gravatar image

Compare your downloaded ipsw file size from here. if not the same, you have a corrupt ipsw download.


answered 07 Mar '12, 10:05

justinred's gravatar image

justinred ♦

Thanks for the link. It's the same file size...

(07 Mar '12, 15:47) _Shaun_ _Shaun_'s gravatar image

id try downloading it without this "speed download"

(07 Mar '12, 16:14) theiphoneguy ♦ theiphoneguy's gravatar image

Tried with 'Safari' too, but without success...

(07 Mar '12, 16:21) _Shaun_ _Shaun_'s gravatar image
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Asked: 07 Mar '12, 04:06

Seen: 5,655 times

Last updated: 07 Mar '12, 16:21

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