Help with jailbreaking and Cydia for iPhones, iPads, and iPod touches.

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Currently, I am on 4.2.1 iphone 4 jailbreak with greenpois0n. How do I check or comfirm that Tinyumbrella or cydia has saved my 4.2.1 blobs? I need to restore to 4.2.1 due to some problem. How do I restore back to 4.2.1 since apple stop signing it? Thank you.

asked 15 Mar '11, 02:26

cvliew's gravatar image


Open Cydia, look at the top line on the home page, it will list what it has for you. If it has 4.2.1, run TinyUmbrella once (it will modify your hosts file to point to cydia's server instead of Apple) and you can shift-restore 4.2.1 in iTunes.


Get TinyUmbrella, connect your device, run it, click "Save shsh" and see what it lists. If it has 4.2.1, open iTunes, hold shift key down (alt key on a Mac) and click restore. You'll need a 4.2.1 stock firmware file for this, get it here if you don't have it already.


answered 15 Mar '11, 02:30

spockers's gravatar image

spockers ♦♦

edited 15 Mar '11, 02:34

Ok...Thanks Btw, before restore, do i need to put my iphone to DFU or Recovery mode? During in the process of restoring via itunes, do i have to delete or remove in my hosts file so that it won't pop-up error 1013 or 1015?

Thank you.

(15 Mar '11, 03:03) cvliew cvliew's gravatar image

No need for dfu or recovery if you're restoring to stock firmware. Your hosts file should have the entry so that it points to cydia.

(15 Mar '11, 13:28) spockers ♦♦ spockers's gravatar image

I'd definitely go the TU route for checking shsh's, Cydia doesn't always list them on it's home page, and you must be pointing to Cydia servers with your hosts file for the restore not to fail, you can check this by visiting in your comp browser, or just click on it here.


answered 15 Mar '11, 02:39

venusanann's gravatar image


It should list 4.2.1 fine, afaik it's just 4.3 that's lagging.

(15 Mar '11, 13:29) spockers ♦♦ spockers's gravatar image
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Asked: 15 Mar '11, 02:26

Seen: 751 times

Last updated: 15 Mar '11, 13:29

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