Restore 3.1.2

[ricklahaye]

Hi,

I got a Iphone 3gs 3.1.2.
Its jailbreaked by Blackra1n 3RC.

I want to do a restore to 3.1.2. again so i got a clean/fast Iphone. Then when i restored it i want to jailbreak it again.

But can i just restore it in itunes in DFU mode?
Because i havent backed up my ECID SHSH.

Thanks

[Destiny]

You can upgrade to a custom 3.1.3 firmware in recovery mode.

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[sentmen]

Oorspronkelijk geplaatst door Destiny

You can upgrade to a custom 3.1.3 firmware in recovery mode.

How can i make a custom firmware?

[Chrisl]

You can find them here (3.1.2)

Or here (3.1.3)

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2G US 16GB, 3GS 16GB black, 4 32GB black AT&T Simlock, 4S 16GB black, 5S 32GB spacegrey.