3.1.2 on 3gs to ios4?
This might be redundant, but I would like to hear how and if I can upgrade my firmware to iOS4.0.
I have a 3gs, jailbreaked on my mac using blackra1n, on firmware 3.1.2, with baseband (modem firmware) 05.11.07
Step-by-step guide would be greatly appreciated!!!:)
This has been answered before (if you seach around a bit),
Originally Posted by jane09186
You missed a few vital pieces of information that we need to give you the correct answer:
- Old or new bootrom (do you need to re-run blackra1n each time you restart your iPhone?)
- Do you rely on unlock?
- Have you saved SHSH for your phone for 4.0, 4.0.1, 4.0.2 or 4.1 ??