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How to fix some mysterious problems.

So my iPhone 3G is at Modem Firmware 06.15.00 and is version 3.1.3(7E18) and jailbroken. My tinyumbrella has some SHSH stuff including 4.2.1(8C148) and was wondering, what would i need to do to upgrade to 4.2.1? And if there is any more information that you need about it, what?

asked 12 Jan '12, 01:59

scone's gravatar image


oh, i need it to be unlocked aswell. it is unlocked atm

(12 Jan '12, 01:59) scone scone's gravatar image

You don't need shsh's for 4.2.1, it is permanently signed by Apple, as it is the final firmware for the device.

Many would tell you to stay where you are, that iOS 4 is slow on a 3G, but I can't speak to that as I've never owned one.

If you want to upgrade, get a copy of your stock 4.2.1 firmware, and Sn0wbreeze (Windows) or Pwnagetool (Mac). Links for all of these are here.


answered 12 Jan '12, 01:59

spockers's gravatar image

spockers ♦♦

edited 12 Jan '12, 02:03

@ o @ Oh, do you think you could tell me how i could upgrade it to 4.2.1 because last time i tried it wouldn't exactly work until i made it 3.1.3 again.

(12 Jan '12, 02:02) scone scone's gravatar image

asdfjkl; and i just want to use the iphone as an itouch without phone use so i dont really need it to be activated or something.

(12 Jan '12, 02:05) scone scone's gravatar image

actually you need to activate with the correct SIM or hacktivate with the firmware customizing tool in order to access the device function, so create a 4.2.1 custom with one of the tools mentioned by @spockers and restore using it. You don't need SHSH or TinyUmbrella or hosts file edits to restore to 4.2.1.

(12 Jan '12, 02:29) knightz4u knightz4u's gravatar image

Still need to do the same thing, or it will be stuck at activation.




answered 12 Jan '12, 02:30

spockers's gravatar image

spockers ♦♦

edited 12 Jan '12, 02:32

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Asked: 12 Jan '12, 01:59

Seen: 3,536 times

Last updated: 12 Jan '12, 02:32

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